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تاریخ برگزاری : 01 شهريور 1402
The oxygen-evolution reaction (OER) is a vital process in energy storage applications such as metal-air batteries and water splitting.[1,2] NiFe oxide-based electrodes have gained significant attention for OER due to their promising features.[3,4] In this study, we investigated the effectiveness of NiFe oxide loaded on indium tin oxide as an electrocatalyst for OER in the p و...
Two Cu(II) (C1) and Ni(II) (C2) complexes were designed through the one-pot reaction of pyridine-2,6-dicarboxylic acid and 2-aminobenzimidazole respectively with copper(II) nitrate hexahydrate and nickel(II) nitrate hexahydrate. Both complexes were characterized by single-crystal X-ray diffraction and the distorted octahedral geometry was recognized for them. The MTT assay ind و...
Lack of pure water is the one of the major barriers in the global socio-economic development. The industrial discharge and other human activities release different kinds of chemicals into the natural environment, contaminating available resources of water [1]. Dyes are one of the largest polluting groups of textile wastes and other industrial processes. Due to the adverse effec و...
Abstract Fullerenes are also a well-known class of carbon-based and SiC nanostructures with a cage-shaped configuration, employed in diverse applications, including superconductors [1], gas storage [2], nano-electronic magnetic devices, biotechnology [3‒4], In this project, we investigated the effects of B doped, and phosgene adsorption on the structural and electrical pro و...
In the present work, Reaction of CuCl2.2H2O with 2-(2-(2-hydroxyethylamino)ethylamino)cyclohexanol, (HEAC), in methanol in the presence of 4,4-bipyridine led to the [Cu(HEAC)(Cl)2(bipy)] .The complex were identified by elemental analysis, FT-IR spectroscopy and DFT studies. As it is shown in (Fig.1), In the structure, the coordination number of the Cu(II) ion in the compound is و...
Oxidation of alcohols to the carbonyl compounds is a major transformation in organic synthesis because the carbonyl compounds such as aldehydes and ketones are versatile intermediates for synthesizing various drugs, chemicals, vitamins, and fragrances [1]. Schiff base transition metal complexes are interesting oxidation catalysts owing to their easy synthesis and their chemical و...
Dye-sensitized solar cells (DSSCs) have been evaluated for photovoltaic applications because of their low cost and high-power conversion efficiency [1]. Polypyridyl ruthenium complexes with ligands functionalized by thiophene, carbazole, and and π-extended moiety can be regarded as super sensitizers [1]. Herein, a new π-extended binuclear ruthenium (II) complex (BiRu2) with two و...
Nitrate entered into the human body is transformed into nitrite through processes that combine with amines and cause the formation of nitrosamine, which is a carcinogenic substance. According to research, nitrate also causes Alzheimer"s disease[1]. Therefore, it is necessary to remove nitrate from water. In this research work, due to the low efficiency of unmodified clinoptilol و...
Bisphosphoramidothioates are widely used as additives in polymers, pesticides in agriculture and drugs in pharmaceutics [1,2]. In this research, we report on the synthesis of (EtO)2P(S)[1-(NHCH2)C6H4-3-(CH2NH)]P(S)(OEt)2, belonging to bisphosphoramidothioate family. Characterization was performed by FTIR, NMR (1H, 13C, and 31P), elemental analysis, Mass spectroscopy and X-ray c و...
New supramolecular compound was synthesized from mercury (II) chloride and two ligands (pyridine-2,6-dicarboxylic acid and 2,4-diamino-6-chloropyrimidine) by using sonochemical and side branch tube methods. These compounds were analyzed using FT-IR, TGA-DTA, 1HNMR, 13CNMR, EDS, SEM and TEM. Also, the structures of these complexes were determined by X-ray diffraction and crystal و...
In recent years, dicationic ionic liquids (DILs) have attracted increasing interest, finding unique applications as electrolytes, stationary phases in gas chromatography, lubricants, catalysts, fuel cells, solar cells, solvents in high temperature organic reactions [1]. DIL’s cationic heads, the linker and the outer chains caused structural variability, high tunability, low vol و...
It is well-established that ultrasound irradiation is a key technology in fast synthetic approach for many materials. Ultrasonic irradiation on reaction combination constructs a huge number of cavitation bubbles which grow up quickly and eventually undergo drastic collapses which result in the formation of micro-jets that can generate fine emulsion between the reactants. Beside و...
Photooxidation of lipids is an undesirable chemical process in which essential fatty acids are converted into peroxides with singlet oxygen (1O2), which causes oxidative spoilage of meat products [1-3]. Erythrocytes are used as a model for lipid oxidation because residual blood can enhance lipid oxidation upon hemolysis and release of hemoglobin [3]. This study aims at investig و...
A new fluorimetric-based method has been developed for detection of Cu(II) using neocuproine-based carbon quantum dots (CQDs). When Cu(II) is adsorbed onto the surface of the CQDs, it interacts with the functional groups, resulting in either an increase or decrease in fluorescence emission depending on the concentration of Cu(II). This is the first reported method that can dete و...
The effluent from textile factories carries various types of hazardous chemicals through a few stages of manufacturing processes and also known to contain highly coloured species[1]. Not only colours, the break down products are toxic and harmful to human and living organisms, raising attention to the world on the importance of removing the dyes from the wastewater[2]. The regi و...
Environmental pollution has become the main concern to humans [1,2]. In the point of view of numerous and permanent solar energy, photocatalysis has attracted much attention worldwide in environmental improvement and energy generation in the last years [3-5]. Herein, the synthesis of cobalt(II,III) oxide QDs-Ag2MoO4 heterojunction was reported by hydrothermal method and identi و...
Recently, carbon quantum dots (CQDs) have become a very valuable material that exhibits excellent properties, such as electrical, optical, and antimicrobial. The shape and high active sites on their surface (hydroxyl, carbonyl, and carboxyl groups) are the response to CDs solubility, biocompatibility, and bio-activity [1] also these groups are causes of CDs surface charges. dea و...
Nanotechnology refers to the ability to manipulate, measure, produce, and fabricate particles within the range of 1-100 nanometers in size [1]. The study of materials and their properties is a fundamental aspect of many academic disciplines. Nanotechnology is a field of study that encompasses various disciplines, such as toxicology, medicine, physics, chemistry, biology, mechan و...
Recently, porous crystalline materials consisting of organic ligands and metal ions, called metal-organic frameworks (MOFs), have been attended by a wide range of researchers and industries. These nanostructures have attracted a lot of interest in a wide range of applications, due to their superior unique structural features including high porosity, tunable pore size, specific و...
Nano γ-alumina (γ-Al2O3) is widely used to adsorb heavy metals due to excellent properties such as high surface area, thermal stability, and high adsorption capacity. Due to poor adsorption of toxic metals on nano γ-Al2O3 surface, coating with β-cyclodextrin improves its adsorption efficiency. The aim of this study was to synthesize nano γ-Al2O3/β-cyclodextrin by co-precipitati و...
Pharmaceutical compounds, including antibiotics, are a major source of micropollutants in water, leading to antibiotic-resistant pathogens and human health problems. Advanced Oxidation Processes (AOPs) [1] and sonochemistry are effective methods to remove these pollutants. Layered Double Hydroxide (LDH) [2] and graphitic carbon nitride (g-C3N4) are promising materials for adsor و...
Biomass as the only carbon neutral alternative, has the unique chemical structure containing tailored surface functional groups and large surface area. Having these features has made it easy to prepare by activation and/or functionalization.The selection of biochar as a surface will be ideal for the preparation of heterogeneous catalysis. Recently, ionic liquids are suitable su و...
Organic-inorganic metal halide perovskites (OIMHPs) is one of the most interesting and exciting nanoscale optoelectronic materials that has recently received attention [1]. Having excellent optoelectronic properties, high quantum efficiency, flexible adjustment of the emission wavelength, wide and adjustable absorption range, high absorption coefficient, adjustable band gap and و...
In recent years, applying nanoparticles as high efficient catalysis has been attracted a great deal of interest. On the other hand, Hydrogels as three dimensional, flexible and polymeric networks, based on natural and synthetic materials with extensive features such as hydrophilic nature, desired functionality, elasticity, reversibility and biocompatibility, are one of themos و...
Photocatalyst degradation of dyes or organic pollutions in wastewater is one of the methods of removing these pollutions.These methods have advantages including the total deterioration of contaminations, being environmentally friendly and sustainable treatment technology to protect the environment, possibly in a less expensive method. [1,2] In this work The photocatalytic prop و...
Half-sandwich complexes that have an metal center attached to a cyclopentadienyl ligand have attracted much attention due to their unique electronic and chemical properties. The term sandwich compound was introduced in organometallic nomenclature in 1956 in a report by Dunitz and co-workers who confirmed the structure of ferrocene by X-ray crystallography [1]. In this work, we و...
In recent years, the synthesis of nanocomposites has received attention due to their unique properties and potential applications in various fields. In this article, bismuth / bismuth sulfide / bismuth vanadate nanocomposite is prepared by hydrothermal method using ammonium metavanadate, bismuth nitrate, and thioacetamide reagents. It was synthesized in the presence of hydrazin و...
One of the fastest-developing areas in molecular sieve science is the synthesis of transition-metal-containing molecular sieves. Since the discovery of periodic mesoporous silica M41S materials in 1992 [1], a wide variety of new materials have been synthesized to exploit the ability of these substrates to act as hosts of inorganic and organic species. The most widely researched و...
Photocatalytic degradation of Rhodamine B by cadmium sulfide nanorods decorated with copper nanoparticles is an effective method for water treatment. In this study, Cu nanoparticles are synthesized on the surface of CdS nanorods (NRs) which act as auxiliary catalysts. Achieving the reduction of Cu ions through chemical reduction and consolidated correlation between nanoparticle و...
Multicomponent reactions (MCRs) are of importance in synthetic organic chemistry as they can produce complex molecules with greater efficacy and atom economy from three or more starting materials in a one step without isolation of intermediate [1]. MCRs have been shown to be environmentally friendly as they minimize the number of synthetic steps and workups, and eliminate isola و...
Carbon-heteroatom cross-coupling reactions based on transition metal catalyst systems have Transition metals include Pd, Cu, Co, Fe, Ag, Au, and Ni allow chemists to catalyze cross-coupling reactions, however, using affordable and friendly environment designed catalytic systems have more attentions among scientists, lastly [1, 2]. Biochar as the only carbon neutral alternative, و...
Metal ions are essential for the catalytic action of some enzymes. The most common role of metal ions is their ability to orient the substrate correctly for the reaction, exchange electrons in redox reactions, and stabilize negative charges. Glyoxalase II (GlxII) is a binuclear metalloenzyme with Zn(II) as the most frequently observed metal ion. However, cytosolic and mitochond و...
Title: Investigation on effect of nanoclay particles on curing of unsaturated polyester resin and evaluation synthesized nanocomposite properties. Nasser Mirzaei darmarani,aZarin Rezaei Kamrania ,Majid Abdoussa ,Saeideh Mazinania Department of Applied Chemistry, Faculty of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran * E-mail: salehan1001@ و...
A2B2O7 mixed metal oxides are interested for their possible applications. A2B2O7 compounds are used as photocatalyst for water splitting [1]. The compounds have an excellent power for fixing matrices of highly active radionuclides from nuclear wastes [2]. They are also used in electrochemical devices due to their ionic conductivity . Besides, A2B2O7 compounds are known for thei و...
The morphology of the crystal structures is an influencing factor on some physical properties. Particularly, morphology affects the dissolution rate, tabletibility, and stability of pharmaceuticals. In a crystal lattice, the morphological feature originates from the intermolecular interactions [1,2]. Understanding the interplay of “intermolecular interactions” and “morphologica و...
In the last few years, immobilization of homogeneous catalysts on various solid supports with the advantage of catalysts separation and recycling have been widely studied in many divergent areas of research [1,2]. Among different nanoparticles, mesoporpus silica is commonly employed as a heterogeneous support for the immobilization of homogeneous catalyste [3]. KIT-6 is a rela و...
The aim of this paper is to evaluate the effectiveness of photocatalytic treatment modified kaolin with FeCl2 as fenton reagent in the degradation of abamectin pesticide. The results reveal that the photocatalyst performance depends on catalyst loading, pH effect, hydrogen peroxide amount, UV irradiation, abamectin concentration, and reaction time. However, removal of abamectin و...
In recent years, with the development of technology and the need to use different sources of energy, the exploitation of unusual sources of oil, which mainly contain a lot of sulfur, has become common. Considering problems such as corrosion and poisoning of catalysts caused by sulfur during petrochemical processes, the need to remove it using methods such as photocatalytic desu و...
Rerecently,The enzyme catalase is the main regulator of hydrogen peroxide metabolism. Hydrogen peroxide in high concentrations is a toxic agent, while in low concentrations it performs some physiological processes such as signalling in cell proliferation, apoptosis, carbohydrate metabolism and platelet activationI [1]. Synthetic enzymes with high stability and performance have و...
Esterification of alpha-chloroacetic acid with water soluble alcohols in the liquid phase using sustainable methods is the first challenge in the way of the total synthesis of polymer solar cells (PSCs) [1]. Carboxylic acid esterification is one of the basic reactions in organic chemistry, the speed of which can be increased by increasing the acidic catalyst to the reaction med و...
Recently, metal-catalyzed organic reactions through C-H bond activation have attracted a lot of attention from the point of view of atom economy, and also various types of catalytic processes have been developed using different modes to activate the existing bond [1]. Allylic esters which can be prepared through allylic oxidation, play an important role as effective intermedia و...
The increase in water pollution has urged industries and academia to propose effective adsorbents to deal with this issue. The present research aimed to produce, characterize, and examine the adsorption capacity of a hybrid material composed of UiO-66-NH2 and triazine-phosphanimine polymeric organic porous polymer (TPA-POP). In this respect, central composite design (CCD) was u و...
Phosphinamides, with a C2P(O)N fragment, are well-known for flame-retardancy properties [1]. In this work, the synthesis, spectroscopy, thermogravimetry and X-ray crystallography of N, N"-(cyclohexane-1,4-diyl)-bis(P, P-diphenylphosphinic amide) are studied. The compound crystallizes in the monoclinic space group C2/c. The asymmetric unit is composed of one half of the molecule و...
Luminescence of rhenium(I) tricarbonyl diimine complexes was first reported by Wrighton and Morse in 1974 [1]. Since the first report, syntheses, photochemistry and photophysics of fac-[Re(Cl)(CO)3(α-diimine)] complexes have been widely studied. These complexes have been reported as promising materials for potential applications in catalysis, sensors, organic light-emitting dio و...
In recent times, the contamination of groundwater has emerged as a significant environmental concern, primarily due to the presence of diverse pollutants resulting from improper personal usage. Antibiotics, being a class of organic substances, possess inherent resistance to biodegradation. Unfortunately, their widespread and irregular usage has led to the pollution of groundwat و...
The interaction of metal complexes with deoxyribonucleic Chacid (DNA) has been a subjcct of interest in bioinorganic chemistry, especially since the discovery of cisplatin and their analogues [1-3]. In this project, the Ag(1) and Cu(1) complexes of a known tetradentate Schiff base ligand derived from tris(2-aminoethyl)amine ( and its reduced form () were synthesized and chara و...
A series of SAPO-34 molecular sieves with hierarchical porosity were prepared via four different preparation procedures with similar composition and hydrothermal conditions. The catalytic performance of these catalysts for methanol to light olefins reaction was investigated. The results indicated that the order of adding components in the synthesis gel has an effect on the sele و...
Schiff-base ligands and their coordination compounds have attracted the researchers’ attention and taken an important area in chemistry as compounds having azomethine linkage (C═N) [1]. This interest is still growing due to their attractive properties, simple synthesis, stability, low toxicity, good biocompatibility [2] and diverse fields of applications in industry, medicine, و...
composite solid propellants, widely used in space and military missions [1]. consist of two major components, i.e., a gas-producing solid oxidizer and an organic, metal fuel and Perchlorates [2]. AN, which has extensive applications in the area of nitrogen fertilizers and explosives, is of interest as a potential replacement for AP, due to its environmentally innocuous products و...
The aphid Brevicoryne brassicae is a specialist feeding on Brassicaceae plants. The insect has an intricate defense system involving the myrosinase enzyme that hydrolysis glucosinolates sequestered from the host plant into volatile isothiocyanates [1]. In this study, we investigated the reaction mechanism of aphid myrosinase using a quantum mechanics/molecular mechanics (QM/MM) و...
Human glyoxalase I (GlxI) is a key metalloenzyme involved in the detoxification of methylglyoxal, a cytotoxic byproduct of glycolysis. GlxI is overexpressed in many cancers and contributes to their proliferation, invasion, and drug resistance. Therefore, this enzyme is a potential target for anticancer drug discovery. In this study, we performed a virtual screening of a large l و...
According to the development of human life, control of the harmful effects of microorganisms is unavoidable. In the last decade, the development of nanotechnology has created opportunities to discover the antimicrobial effects of nanoparticles. In recent years, too much use of antibiotics causes many problems including poisonous effects and creating resistant types. Therefore, و...
Polyoxometalates have been considered a class of metal cluster complexes consisting of oxide anions of intermediate metals due to their high potential in chemistry.[1] In this study, in the first stage, graphene oxide (GO), amine graphene oxide (GO/NH2) as well as Keggin-type sandwich polyoxometalates with abbreviation (POM) were synthesized and then synthesized polyoxometalate و...
In this research, the structural and elastic constant properties of the LaLi3Sb3 compound, with a trigonal crystal structure (space group p31m) have been discussed [1]. The calculations have been done in the framework of the density functional theory and with the pseudo-potential method in the generalized gradient approximation (gga) by the quantum espresso software [2], and fu و...
Quinoxalines are importan nitrogen containing heterocyclic compounds. this compounds can show biological activities, medicinal and therapeutic properties, and also are used in various fields such as paint industry, optoelectronics and agricultural chemistry. There are many methods for the synthesis of quinoxalines, but these methods have disadvantages, including environmental h و...
Tandem post-synthetic modification is an interesting approach for improving the properties of coordination polymers. In this work, we report surface functionalization by amine group under ultrasonic condition and tandem post-synthetic metal-exchange (PSE) on zinc coordination polymer (Zn-CP). During the metal exchange process Cu2+ ions were replaced by Zn2+ ions in methanol . D و...
Organic dyes are important industrial materials and are used in different industries. The extensive use of organic dyes and the indiscriminate disposal of dye-contaminated effluents can cause serious contamination of surface and groundwater[1]. The dyes are toxic and pose a threat to human health, as they can cause mutagenesis, chromosomal fractures, carcinogenesis, and respira و...
In recent decades, environmental concerns and the global energy crisis caused by the reduction of fossil fuels have led to an intensive search for clean and renewable energy sources, especially through electrocatalytic processes. On the other hand, the morphology and structure of the manufactured electrocatalysts can have useful features for better catalytic performance [1][2]. و...
Carbacylamidophosphates (CAPh) with moiety –C(O)NHP(O)– are important inorganic ligands in the synthesis of metal complexes such as transition metals, lanthanides, and Sn(IV) with biological and pharmacological activities [1,2]. Besides, the biological activity behavior of CAPh, its seemed efficient ligands in coordination chemistry either as O,Ó-bidentate chelates in neutral a و...
In this research magnetic beads of alginate - graphene oxide have been used as absorbents to remove Zn2+ cations in aqueous solutions. The results showed that the optimum removal efficiency of zinc was observed at pH = 6 during 180 min [1]. In addition, increasing the initial concentration and increasing the amount of the adsorbent enhanced the efficiency of the removal pro و...
To design and make new MOFs with desired structure and consequently spatial properties, there need to choose both metal ion as a node and ligands as their linkers. MOFs are a new category of porous materials that have been extensively used in various applications due to their unique properties such as crystallinity, high surface area, designability, favorable thermal and chemic و...
[Zn(NCS)Cl(L)]n (Zn-SCP) is a one-dimensional coordination polymer with a terminal thiocyanate group. The flexible sulfur donor ligand is bridged between metal centers by the anti-anti-anti conformation which forms an infinite 1D zigzag chain and the third and fourth coordination spheres are occupied by terminal Cl- and NCS- anions [1]. Considering the HSAB concept (Hard-Soft A و...
Refinery wastewaters are significant contributors to water pollution due to their non-biodegradable and toxic nature. Phenolic compounds, classified as priority pollutants by the US EPA, are particularly problematic. Photocatalytic techniques based on nanomaterials, like titanium dioxide (TiO2) nanostructures, have emerged as effective and versatile solutions for wastewater tre و...
Recently, there is a significant interest among researchers in the case of oxide perovskites characterized by the general formula ABO3 .Among them, CeCoO3, known as cerium cobalt oxide perovskite, has shown great potential as a nanophotocatalyst in the conversion of organic dyes . Moreover, PbS, or lead sulfide, has emerged as a high efficient semiconductor in light absorption و...
Coordination polymers containing lanthanide ions (LnCPs) have received relatively less attention compared to d-block metal coordination polymers, despite their potential for remarkable luminescence, catalytic activity, and magnetic properties.[1,2] LnCPs have shown promise as Lewis acid catalysts for various chemical transformations. Lewis acids are electron acceptors that can و...
Many Pd complexes have been used as homogeneous catalysts in cross-coupling reactions [1]. Although some of the Pd complexes have potential for recycling [2, 3], most of them have problems such as deactivation and difficult separation from the solution. Thus, it is necessary to develop heterogeneous catalysts that can easily be recovered from the reaction system and reused [4, و...
A new polyoxomolybdate with a formula of (C7H15N4)3[CH2Mo4O15] was synthesized and then it was characterized using IR, EDX and X-ray crystallography. The unit cell of 1 consists of three N-methyluroptropine (C7H15N4)+ cations, and one polyanion [CH2Mo4O15]3- (Fig. 1). In the polyanion [CH2Mo4O15]3-, molybdenum metals are surrounded by two terminal and two bridging μ2-oxygen ato و...
A precise nano-scale biosensor was developed here to detect Hg2+ in aqueous media. Nitrogen-doped carbon nanospheres (NCS) created from the pyrolysis of melamine–formaldehyde resin were characterized by FESEM, XRD, Raman spectra, EDS, PL, UV–vis spectra, and N2 adsorption–desorption, and were used as a highly selective and sensitive probe for detecting Hg2+ in aqueous media. Th و...
New Scandium(III) coordination polymer at bulk and nanopowders as Scandium 1,4-benzene dicarboxylic acid hydroxide [Sc(OH)(BDCA)]n, (BDCA = 1,4-Benzene Dicarboxylic Acid) has been synthesized by the reaction of a mixture Sc(III) Nitrate and BDCA in MeOH by simple Branched tube and sonochemical method. The nanopowders of Sc2O3 was prepared from the calcinations of the NCP at air و...
In recent decades, numerous researchers have extensively explored luminescent cyclometalated platinum(II) complexes, and the number of publications in this area of study is growing. Various uses for the luminous cycloplatinated complexes include light-emitting devices, dye-sensitized solar cells, photoswitches, photocatalysts, and chemical or biological sensors [1]. The princip و...
In this thesis, B-type sandwich polyoxometalate of [(PW9O34)2Fe4(H2O)2]6- was immobilized into porous composite cavities of Cr-MIL-101 by simple anion exchange[1, 2]. The formation of P2W18Fe4@MIL-101 nanocomposite was confirmed by FT-IR, TGA, BET, SEM, EDX, ICP, BET and powdery XRD methods. The catalytic activity of nanocomposites was investigated in oxidation of sulfides to s و...
In recent times, focus on plant research has increased all over the world and a large body of evidence has been collected to show the immense potential of medicinal plants used in various traditional systems. Nowadays, we are seeing a great deal of public interest in the use of herbal remedies. One of these plants, Lawsonia Inermis Linn (Family: Lythraceae) which is commonly kn و...
Metal-organic framework (MOF) is a new class of porous crystalline materials featured with regular pores, open channels and high surface area [1,2]. In particular, a few bimetallic MOFs can be obtained when two kinds of metal ions are coordinated with ligands among the MOF structures [3]. Adsorption desulfurization is very effective for the removal of organophosphorus compounds و...
Recently, electrospun polymeric nanofibers have proven to be an interesting strategy for drug delivery systems application. The high surface-to-volume ratio of the fibers can improve some processes, such as, drug loading. One of the most important and studied areas of electrospinning is in the drug delivery field, for the controlled release of anticancer agents. Different drugs و...
Metal–organic frameworks (MOFs) are a new group of molecular networks arranged in a three-dimensional skeleton with metal centers and bridged organic ligands around them [1]. The MOFs have a remarkable performance in the fields of adsorption [2], separation [3], photocatalysis [4], and drug delivery [5]. On the other hand the adsorption and photocatalytic degradation of hazardo و...
Metal-Organic Frameworks are a new category of porous materials that have been extensively used in various applications such as gas separation process, gas storage and catalysis due to their unique properties such as high porosity, crystallinity, high surface area, designability, favorable thermal, chemical stability, adjustable pore properties and so on. In this work, new two و...
Water pollution caused by synthetic dyes, such as methylene blue (MB), is a significant environmental concern. Advanced oxidation processes (AOPs) have gained attention as effective methods for dye removal due to their high efficiency and ability to degrade complex organic compounds. The Fenton reaction, involving the generation of hydroxyl radicals (OH) through the reaction b و...
Due to the increasing prevalence of diseases and their effects, the field of biomedicine, especially tissue engineering and wound healing, is a rapidly growing area of research [1-3]. Researchers are adopting new strategies to promote wound healing, and nanomaterials are playing an increasingly important role in these efforts [4-5]. Regarding this, we fabricated a novel nanobio و...
The United Nations General Assembly, in its declaration of the right to development (1986), declared energy in different forms an essential need to achieve the specified targets [1]. Today, most energy needs are met through non-renewable sources [2]. The use of non-renewable resources in addition to the environmental issues due to long-term use has reached a saturation level [3 و...
In this research, the exit treated wastewater from the gravity filtration unit, mechanical and chemical treatment unit, biological treatment unit and finally UV disinfection treatment unit enters to a solar desalination unit. Wastewater evaporation process is performed in this unit. In this study, in order to increase the UV waves in solar energy, nano-flooring has been used on و...
MgFe2O4 nanoparticles were created using the sol-gel process to degrade organic contaminants, such as industrial paints, in water, soil, and air sources. X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy were used to explore the structure and characteristics of nanoceramics. The Scherer equation of 11nm was و...
In this work, Metal-organic framework UiO-66-NH2 is prepared from the reaction of ZrCl4 with 2-aminoterphthalic acid in DMF by solvothermal method and then functionalized with 2-chloroacetyl chloride. After ensuring the functionalization of the metal-organic framework, the phenyl glycine (2-amino-2-phenylacetic acid) was immobilized on it and the heterogeneous ligand was obtain و...
"Dichalcogenolene" is a general term used to describe unsaturated bidentate ligands in the form of E^Ex– units with chalcogen donor atoms (E=S, dithiolene; Se, diselenolene; Te, ditellurolene) and different charges (x=2, 1, 0) [1]. This class of ligands includes ene-1,1- and ene-1,2 dichalcogenolates (where x=2) and also the corresponding oxidized species (neutral and monoanion و...
Organometallic complexes have found numerous applications in targeted cancer treatment, due to the outstanding physicochemical properties including chemical stability and structural diversity. The coordination sphere aroun the metal center seems to have the most important factor in the successful design of potent anticancer agents. Small changes in the ligand architecture can i و...
Statement of the Problem: Switching from fossil fuels to renewable energies is an inevitable task that should be performed in the near future to provide clean and sustainable energies for human beings. Water splitting toward hydrogen production is a promising approach to store such energies. In this regard, there are some bottlenecks for water splitting systems. Among و...
Over the past decade, the use of nanoparticles to improve the process of enhanced oil recovery (EOR) has received much attention from researchers. Most nanoparticles are described as an EOR chemical process in which wettability conditions are altered, interfacial tension is lowered, and viscosity is altered to aid oil recovery[1-3]. The main goal of this work is to investigate و...
In this study, the uncertainty and sensitivity analysis of the efficiency of a biofilm reactor with a moving bed were conducted using a combination of Monte Carlo simulation and artificial neural network. The qualitative prediction of the quality of petroleum source was estimated using artificial neural networks, and the removal efficiency of COD and TPH pollutants was predicte و...
Phenyl ketones show a significant family of intermediates commonly used in the synthesis of industrial chemicals, medicines, cosmetics and food additives [1]. Acetylation is one of the most applicable, beneficial and essential reaction in organic chemistry setting chemists to introduce reagents for this reaction [2]. In organic synthesis this functionality normally introduced o و...
Rapid industrialization in recent years is primarily one of the main causes of environmental concerns, especially water pollution. Various industries have caused many dangerous diseases for humans and aquatic animals. Among organic pollutants Nitrophenol compounds as common carcinogenic pollutant demonstrate adverse effects on human beings and also aquatic life. Chemical reduct و...
Coordination driven self-assembly and metallophillic ineractions provide power tools to construct bi- tri-or extended supramolecular luminescent structures featuring different and rich excited states with application in different fields([1]). Herein, we present a series of homonuclear and heteronuclear cycloplatinated(II) complexes featuring cyanide ligand. Homobinuclear symetr و...
Every year around the world, a vast amount of organic waste is produced from aromatic nitro compounds and their derivatives due to their wide application in the production of pesticides, herbicides, insecticides, and synthetic dyes. They have a huge adverse effect on the environment due to their difficult degradation process. In the same direction, developing heterogeneous cata و...
Copper metal-organic framework (Cu-MOF) fluorescent sensing is a relatively new area of research in the field of materials science and chemical sensing. Cu-MOFs are porous materials that have been found to exhibit unique fluorescence properties, which make them attractive for use in sensing applications. H2S is a toxic gas that is commonly found in natural gas, crude oil, and o و...
Ion-lithium batteries are an essential raw material for the production of most future and current products. Therefore, it is necessary and necessary to recover and recycle them at a low cost. Among the different methods of recycling, salt-thermal method is an efficient and effective method. Salt-thermal methods by producing salt or oxides with lithium defects enable the reuse o و...
In this work, 2-(2-(2-hydroxyethylamino)ethylamino)cyclohexanol, L1, was prepared in solvent by the ring opening of Epoxycyclohexane with 2-(2-amino-ethylamino)ethanol([1]). Reaction of CuBr2 with L1 in methanol in the presence of 4,4-bipyridine (L2) led to the [CuL1L2 Br2]. we elucidated the structure of Cu(II) complex prepared and identified by elemental analysis and FT-IR و...
Perovskite semiconductor nanocrystals (PNCs) have appeared as a new kind of excellent optoelectronic materials for photovoltaic applications due to their remarkable optical properties [1]. Although PNCs have many significant properties, they still have problems such as poor stability. The structure of PNCs will be damaged when exposed to the environment of humidity, polar solv و...
Hydrogen is a promising alternative energy source to conventional fuels, including fossil fuel. Several methods were reported for the generation of hydrogen but hydrolysis of aqueous sodium borohydride (NaBH4) solutions is One of the non-fossil methods to generate hydrogen. NaBH4 with high gravimetric hydrogen capacity of about 10.8 wt.%. is promising as a hydrogen storage mate و...
Hirshfeld surface analysis and two-dimensional fingerprint plot are used to study the intermolecular interactions in a new double-complex salt: diaqua pentakis (tetramethylurea) europium(III) hexa (isothiocyanato) chromate(III) tetrakis (tetramethylurea) solvate, [Eu(H2O)2(C(O)(N(CH3)2)2)5][Cr(NCS)6].4C(O)(N(CH3)2)2 (I). The contacts received by the four symmetry-different comp و...
DNA binding mechanism of molecules, especially metal complexes, has been studied in order to develop anticancer drugs for several decades. In order to reduce side effects and improve the effectiveness of treatments, researchers are trying to design and synthesize new biometal complexes [1-3]. In this project, three complexes of the thiamine chloride (ThmCl) with the proposed fo و...
Biliverdin is a product of heme catabolism. It is the pigment responsible for a greenish color sometimes seen in bruises. Biliverdin has been found in excess in the blood of humans suffering from hepatic diseases. Structure of biliverdin from catabolism process of heme is one of the cases that has been less discussed. In this research characterization of biliverdin analogues in و...
This work focuses on the optimization of the experimental factors affecting oxidative desulfurization process. To achieve that, kaolin was modified using acid treatment. The encaging of metal oxide was performed by impregnation method to improve catalytic activity. Dibenzothiophene (DBT) was chosen as the model substrate and the effect of several parameters such as t و...
The present work describes the synthesis of copper immobilization on CoFe2O4/MCM-41 as a catalyst, which is created by attaching copper and ligand (N-phenyl anthranilic acid (PA)) on the surface of CoFe2O4/MCM-41 (CoFe2O4/MCM-41/PA/Cu). The synthesized CoFe2O4/MCM-41 support and immobilized copper were identified by FTIR, TEM, VSM XRD, and nitrogen adsorption–desorption analysi و...
Today, applying of fossil fuels is considered as a challenge and the use of renewable. Clean energy can be as a suitable way for decrease this problem. Energy transport such as hydrogen evaluation reaction (HER) was considered as alternative energy technology in the recent years [1, 2]. The hydrogen can be product using water splitting reaction [3]. Although, the rate of the ox و...
Toluene is one of the unsaturated hydrocarbons. Breathing a high concentration of toluene leads to death, and lower concentrations affect the nervous system and lead to dizziness, unbalanced behavior and organ failure. Exposure to these volatile organic compounds causes harmful effects on the organs. Therefore, researchers are searching for new methods to replace these compound و...
The heme oxygenase enzyme is a free heme protein that binds to heme in the body. Heme acts as both a substrate and a cofactor in this enzyme. The heme oxygenase enzyme (HO) plays a key role in destroying heme molecules. Studies of the reaction of 5-oxaporphyrin iron complexes (verdohemes) with peripheral substituent on the heme ring have been undertaken to provide models and la و...
The emergence of multi-drug resistant strains of bacteria is a problem of ever increasing significance. Consequently, the development of new antimicrobial agents will remain an important challenging task for medicinal chemists و...
Metal-organic frameworks (MOFs) have been widely used as porous nanomaterials for different applications ranging from industrial to biomedicals. An unpredictable one-pot method is introduced to synthesize NH2-MIL-53 assisted by high-gravity in a greener media for the first time. Then, porphyrins were deployed to adorn the surface of MOF to increase the sensitivity of the prepar و...
Most metal catalyzed oxidation of organic compounds with different terminal oxidants are conducted in air under exposure to sunlight or laboratory light [1-4]. However, little attention was paid to the possible influence of light and molecular oxygen on the efficiecy of the catalytic reactions. In the present study, the oxidation of cyclohexene with periodate catalyzed by manga و...
Adenine is a purine nucleobase. Purine is a heterocyclic aromatic organic compound that consists of two heterocylic rings (pyrimidine and imidazole) fused togther [1]. In this work, we report a theoretical study on protonation and metal cation affinity (Na+, K+ , Mg2+, Ca2+, Fe2+ and Zn2+) of adenine molecule at M06-D3 level of theory, with def2-TZVPP basis set using GAUSSIAN 0 و...
Dimethyl ether (DME) is a versatile multi-source multi-purpose chemical being projected to become one of the main chemical feedstocks in the 21st century. It is a non-toxic, eco-friendly and easily condensable gas that can be used both as a fuel or as a chemical feedstock [1]. DME can be produced by methanol dehydration. In this study, three γ-Al2O3 catalysts for methanol dehyd و...
Phosphoramide compounds with the main skeleton O═P─N have received much attention in various medical fields such as their application as acetylcholinesterase and urease inhibitors [1,2]. Therefore, in the present work, a compound of the phosphoramide family with the formula OP[NH-2Py(4-CH3)]3 (tris(4-methylpyridin-2-yl)phosphoric triamide) was selected and its inhibitory ef و...
Nanocomposite sponges composed of biocompatible polymers and inorganic materials have attracted much attention within various fields such as biomedicine, pharmaceutics, and food packaging [1-3]. In this study, we have fabricated some novel nanocomposites with a combination of salt leaching for fabrication of PDMS sponge, in situ synthesis of Zn-MOF, and dip coating process for و...
Nowadays, fossil fuels alone will not be enough to meet ever-increasing energy demands to develop sustainable energy. Therefore, a clean pathway to produce sustainable energy carriers has been introduced through electrochemical water splitting containing hydrogen and oxygen evolution reactions (HER and OER) [1]. OER is generally considered to be the rate-limiting step of water و...
In recent years, the use of nanoparticles in drug delivery systems has received much attention. Nanoparticles are solid colloidal particles composed of natural and synthetic or semi-synthetic polymers[1]. Nanoparticles as drug carriers are of great importance because of their ability to transduce different drug fragments at appropriate times[2]. Polymer chitosan is a biodegrada و...
The rapid agricultural and industrial development is producing pollution of heavy metal ions because of their toxicity for humans and detrimental effects on the environment and ecology [1]. Accordingly, removing heavy metal ions from water is a particularly significant issue before they are released into the environment. in recent years Metal-Organic Frameworks have been regar و...
We have successfully synthesized a new nanocomposite made from four component including MIL(100)/Fe2O3/PANI/rGO (MFPG) and use them as electrode active materials for supercapacitor fabrication. MIL(101) as a well-known metal-organic frameworks (MOFs), benefits from the valuable properties of MOFs such as high porosity and potential high charge storage abilities [1]. The combina و...
Arsenic is one of the toxic heavy metals, which is found in soil, air and water resources [1,2]. Arsenic contamination can cause serious health problems, including skin damage, heart, liver, bladder cancer and death [3,4]. World Health Organization (WHO) and the Environmental Protection Agency (EPA) classified arsenic as the first priority contaminant among hazardous substances و...
Carbon nanotubes and recently titania nanotubes as catalyst support are of great interest due to their high surface-to-volume ratios and size-dependent properties, which are used in various fields including electrocatalysis, sensing and photoelectrolysis. The nanotube arrays of TiO2 have been produced by various methods, and the anodization of titanium in fluoride-based baths i و...
This project reports a simple procedure for the synthesis and characterization of neodymium on MCM-41 magnetic nanoparticles (MCM-41 MNC) as a reusable nanocatalyst. Firstly, MCM-41 MNC prepared by Fe3O4-dopping into mesoporous MCM-41 channels. Then, a novel neodymium Schiff base complex was immobilized on MCM-41 MNC. Finaly, this catalyst (Nd-LArg-5BrSalen@MNC) was used as mag و...
Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran * E-mail: v.nobakht@scu.ac.ir In this work, a two-dimensional zinc(II) coordination polymer (Zn-CP, 1) has been selected for consecutive post-synthetic modifications. In the first step, the coordinated solvent was removed to create the solvent-free structure Zn-CP-df (2) with open-co و...
In recent decades, a class of anionic clays known as layered double hydroxides (LDHs) or hydrotalcite-like compounds (HTlc) has attracted substantial attention. The structure of LDHs is intercalation of anions in the hydrated interlayer regions. Double layer hydroxides belong to a group of clay minerals, which have physical and chemical properties very close to clay minerals و...
در این پژوهش، مزوپروس سیلیکاتی KIT-6 اصلاح شده با نانوساختار های CdS دوپ شده با Zn تهیه و از آن در تخریب فتوکاتالیتیکی متیل گرین در محلول آبی تحت تابش نور مرئی استفاده شد. نانوکامپوزیت تهیه‌شده به وسیله پراش پرتو ایکس (XRD)، آنالیز جذب و واجذب نیتروژن (BET)، FT-IR، میکروسکوپ الکترونی روبشی نشر میدانی (FE-SEM) و طیف‌سنجی UV-Vis مشخصه یابی شد. نتایج نشان می‌دهد که مقدار کم دوپ شد و...
As time goes on, microscale and nanoscale heterogeneous catalytic systems are gaining increasing attention for a variety of reasons[1]. silver nanoparticles (Ag NPs) are among the best competent candidates in the catalytic processes due to including impressive electronic and optical properties. Also, Pumice is a volcanic stone that includes numerous voids in its structure, a و...
Uncontrollable bleeding has been considered one of the leading causes of death around the world. Thus, the development of new wound dressing materials with enhanced hemostatic properties is quite necessary. Meanwhile, bacterial infection is a crucial issue that can impair wound healing, as the blood clot can become a hotbed of bacterial growth and cause wound inflammation. So, و...
As a unique class of porous materials, metal-organic frameworks (MOFs) are promising platforms for creating heterogeneous catalysts [1]. MOFs with a highly porous structure enable efficient access of reactive molecules to the site of the active metal and are promising as heterogeneous catalysis. Heterogeneous catalysis is superior to homogeneous catalysis because it leads to ea و...
Various nanocarrier preparations have been designed to improve therapeutic efficacy and reduce toxic side effects. Nanocarriers prospect a continuous, direct, and controlled drug release to the malignant cells selectively with augmented drug localization and cellular uptake. Nanoparticles can be automated to identify malignant cells and give discriminating and precise drug tran و...
In recent years, two infectious viral diseases, coronavirus and monkeypox, and the preparation of compounds with suitable biological properties as drug to inhibit these diseases have attracted attention of the world health organization and medical association[1]. Phosphoramide compounds with the main skeleton O═P─N are among the chemical compounds that show appropriate biologic و...
Utilization of renewable sources and waste conversion processes is increasing in the world because of global warming, which occure due to the use of fossil sources for both fuels and essential raw materials. An estimated of 4 billion waste tire (WT) are currently in landfills and stockpiles worldwide. Scince waste tires do not decompose easily due to their cross-sectional struc و...
The use of dyes in industries for coloring products is a major cause of environmental pollution [1]. This study explores the potential of semi-interpenetrating polymer networks (semi-IPN) for the removal of dyes from water. Dyes are a significant contributor to environmental pollution and are commonly used in various industries for coloring products. Semi-IPN hydrogels were syn و...
Zeolites, a member of the microporous crystalline aluminosilicates family, also known as “molecular sieves”. Zeolite has the three-dimensional structures which are composed of the networks of [SiO4]4− and [AlO4]5− tetrahedral linked to each other with oxygen atoms. Natural zeolites are abundant in nature and have operational importance, including: clinoptilolite. mordenit [1].T و...
Metal organic frameworks (MOFs) demonstrate an important class of crystalline porous compounds produced from organic ligands (linkers) and metal ions or clusters [1]. Functionalization of MOFs is crucial in searching their structural and chemical variety for aboundanc potential applications [2]. MOFs were commonly suitable for various reaction substrates with different substitu و...
The cyclometalated organometallic compounds have been extensively investigated by many research groups because of their catalytic reactivity in organic synthesis, diverse medical and industrial applications. In particular, cyclometalated platinum(II) complexes have been widely developed for their applications in organic light-emitting diodes (OLEDs), vapor sensing, oxygen sensi و...
The sources of electric power are mostly derived from fossil fuels, which has a negative impact on the environment, and also population growth and the importance of tecchnology in socity have both contributed to the upsurge in the demand for energy. Therefore, researchers are encouraged to find alternative power sources that are renewable and eco-friendly. Recently, research in و...
Abstract: Focus on the bonds between molecules instead of bonds between atoms, results in the creation of large molecules with unusual structures and different physical and chemical properties, which are useful for various applications[1] . Such interactions lead to a tremendous increase in the variety of crystal architectures and thus properties to be discovered[2].There are و...
In this study, magnetic copper-magnesium ferrite nanoparticles were synthesized as an effective and recyclable photocatalyst using a sol-gel method. Characterization of the synthesized materials included XRD, FTIR, BET, FESEM, TEM, EDS, PL, and UV-Vis DRS analyses. The sample demonstrated a higher BET surface area due to the synergistic effect and interface between copper and m و...
The aim of this project is to study the structure, interaction energy, stabilization energy, cooperative/anticooperative energy and the nature of the metal-ligand bond in some group 6 transition metal complexes containing dihydrogen and carbonyl ligands. For this project, some complexes with the general formula [M(η2-H2)(CO)4L] (M= Cr, Mo or W; L= SiO, PH3, NO^+, N2, NC^-, CS, و...
In this research project, a new complex of nickel chloride and cobalt chloride was prepared with the divalent ligand of 1,3-bis- pyridin-2-yl, urea, and it was identified using spectral methods (FT-IR), melting point, and X-ray diffraction. Based on the obtained structures and the examination of the resulting spectral data and the physical properties of the compound, it i و...
In contemporary times, the fabrication of green nanocatalysts has garnered considerable interest among numerous scholars [1]. The synthesis and investigation of Fe3O4@SiO2@APTES@TCT magnetic nanoparticles have been previously documented [2]. This study involves the synthesis of a nano catalyst that is both environmentally friendly and green. The synthesis process involves funct و...
In the past decades, the serious water pollution due to organic dyes and pigments affected the earth"s environment, animal and human health. Photocatalysts based on polyoxometalates (POMs) have been extensively studied in water treatment due to their superior removal capacity in heterogeneous and homogeneous processes [1]. It is well known that lacunary derivatives are more re و...
A series of γ-Al2O3 catalysts were prepared by precipitation of Al(OH)3 from aluminum nitrate solutions, using NaOH as precipitating agent, followed by filtering and calcination at 500 °C. The resulting powder was formed as extrudates and tablets prior to performance test. The catalyst were tested in a fixed-bed reactor for dehydration of methanol to dimethyl ether (DME), an al و...
Post-synthesis modification (PSM) is known as a powerful approach that provides the opportunity for the design of new frameworks. The current research reports the PSM of a 2D Zn-MOF in three steps. By removing the coordinated solvent molecules from the 2D structure of Zn-MOF, as pristine structure, Zn-MOF-df with the coordinatively unsaturated site (CUS) as Lewis acid site was و...
Today, researchers have resorted to the synthesis of nanomaterials with extraordinary wonders to treat and diagnose diseases. These substances have special characteristics, which can have the least negative impact and the greatest depth[1] of penetration on body tissues and cells. In this research, we also synthesized nano-upconversion materials that had the ability to affect t و...
Organic sulfoxides play an essential role in the synthesis of chemically useful and biologically active compounds including drugs, flavors, germicides, and catabolism regulators. Therefore, the selective oxidation of sulfides into the corresponding sulfoxides has taken up a great part in modern synthetic chemistry [1]. Transition metal Schiff base complexes are significant and و...
The growth population and decreasing source energy have been a challenge in recent years. Among several energy sources, the production of hydrogen from the process water splitting has been interest [1]. Hydrogen reduction reaction (HER) plays an important role in various renewable energy devices, fuel cells. Currently, state-of-the-art HER, catalyst is Pt, but their long-term a و...
Abstract Among various nanomaterials, carbon-based nanostructures are one of the major types of DDC, utilized in various configurations like nanoparticle, nanotube, graphene and graphene oxide [1‒3].The aim of this work was to investigate the adsorption and detection of cyanogen fluoride (FCN) molecule on a boron nitride nanosheet marked with hydrogen ion (H+) in the presence و...
Carbon monoxide (CO) is a colorless, odorless, and non-irritable gas [1]. Fischer–Tropsch synthesis (FTS) is a process that has been used for many decades as it gives access to industrially important chemicals from CO [2]. As the products of FTS are a complex mixture of a wide range of organic compounds, selectivity toward desired products is the most important issue in this re و...
Recently, heterogeneous catalysts have been used in organic reactions and modern organic synthesis [1,2]. In this regard, hercynite magnetic nanoparticles have high density of hydroxyl groups on its surface, which could be available for immobilization of various catalysts [3]. Therefore, hercynite magnetic nanoparticles have attracted great attention, especially in the synthesi و...
Cross-coupling is one of the most significant and extensively utilized methods in chemistry for linking two organic substrates using a metal catalyst. In this method, two active groups (such as aryl or alkyl) are connected to each other via an alkyl radical or another reactive group. The palladium-catalyzed Sonogashira reaction [(1-3)] is one of the most important and widely us و...
According to the construction material, the main types of membranes are polymer and ceramic membranes. Compared to theirpolymer counterparts, ceramic membranes are considered for use in high temperature and pressure or in aggressive environments[1].Recently, geopolymerization technique has been used for membrane synthesis to replace conventional ceramic membrane synthesis. For و...
Most Schiff base metal complexes have an azomethine group as a coordination site, which makes them amenable to easy structural alterations. They may also be easily produced via one-step condensation processes, which promote coordination when three, four, or five bonds separate other donor sites. Mo and V complexes with several hydrazone-based Schiff bases have outstanding catal و...
Developing anodes for seawater batteries need to control anodic reaction kinetics, cathodic reaction kinetics, and self-peeling discharge product films. Alloy AZ63-1.5RE is a suitable choice as anode in seawater batteries. In spite of its impressive corrosion resistance, AZ63-1.5RE alloys cannot satisfy the increasing demands for higher corrosion resistance, especially for subm و...
Huisgen 1,3-dipolar azide−alkyne cycloaddition is an important reaction in click chemistry and is applied to the preparation of biologically active compounds and biomolecules toward preclinical and clinical applications.3 Meldal and coauthors4 and Sharpless and coauthors5 independently reported the copper-catalyzed azide−alkyne cycloadditions (CuAAC), in which a Cu(I) c و...
Controlling and monitoring the HCN and CN ions concentration under the threshold limit value in both industrial and residential environments are of special interest. For detecting HCN gas and CN ion in the atmosphere, gas sensors have been considered promising alternatives for environmental measurements due to their low cost, high sensitivity, fast response and direct electron و...
Lately, industrial growth has enhanced intensive environmental difficulty in which pollution of water is the main subject. The existence of dyes along with other pollutants prevent the biological treatment methods also enforce allergic reactions [1]. Rhodamin B (Rh.B) is a carcinogen and dangerous dye for human beings. Several procedures have been presented for the elimination و...
Cancer continues to be one of the world"s leading causes of mortality, despite the rising corpus of research. The majority of cancer treatments include photodynamic therapy and chemotherapy, with chemotherapy continuing to be the most successful method for increasing patient survival. But on the other hand, chemotherapy uses non-selective cytotoxic substances that cause cell de و...
In this study, the synthesis of Zn0.5Ni0.5Fe2O4 magnetic nanoparticles by the sol-gel method was carried out. The resulting sample was characterized by FTIR, XRD, TEM, FESEM, EDX, and VSM. The catalytic activity of Zn0.5Ni0.5Fe2O4 MNPs was assessed for the synthesis of 2, 4, 5-triarylimidazole derivatives through a three-component reaction under microwave irradiation and solven و...
Cycloplatinated(II) complexes are one of the noteworthy classes of organoplatinum(II) compounds with impressive photophysical properties that are structurally and electronically tunable through supporting ligands [1]. For example, thiolates play important roles in the capacity of tuning both steric and electronic properties of transition metal complexes as supporting liga و...
Barium aluminate (BaAl2O4) is an insulator with hexagonal crystal structure, and it crystallized in space group P63 (No. 173) symmetries with cell parameters a = b= 10.449, c = 8.793 Å. It belongs to the family of stuffed tridymite tetrahedral structures. This structure consists of twisted AlO4 tetrahedral linked to each other by their corners [1]. Metal ion-doped BaAl2O4 ceram و...
A new Palladium(II) complex having α-keto stabilized arsonium ylide ligand with the general formula [Pd(μ-Cl)(Ph3AsCHC(O)C10H7)]2 was synthesized and applied as a performance catalyst to achieve palladium (II)-catalyzed Suzuki-Miyaura reaction of arylboronic acid with aryl bromides. This complex was characterized by CHN analysis, FT-IR and multinuclear (1H and 13C) NMR spectros و...
Palladium-catalyzed cross-coupling reactions are one of the most important carbon-carbon bond forming processes[1-2]. Nowadays, the Suzuki Miyaura cross-coupling reaction has become a standard tool in natural product synthesis[1.2]. The development of new ligands lead to improvements but also the design of new precatalyst structures can increase the catalytic activity as they i و...
Metal complexes exhibit promising potential in medicinal applications, such as cancer treatment [1]. Metal complexes also play a crucial role in bioinorganic chemistry, particularly in understanding metalloprotein function [2]. In this work, three new metal complexes have been obtained from the reaction of a new N1, N2-bis(2-aminobenzyl)-N1, N2-bis(pyridin-2-ylmethyl) propane- و...
Photocatalysts are potent substances that play a vital role in the conversion of organic dyes [1]. Through the process of photocatalysis, photocatalysts harness light energy to initiate chemical reactions that break down harmful organic substances into harmless byproducts. These catalysts find wide-ranging applications, including water and air purification [2], as they offer an و...
Schiff base complexes are an important group of inorganic coordination compounds due to their ready availability, synthetic flexibility and facile structural modification. Coordination of of Schiff base ligands have attracted the attention of the researchers because of their diverse applications in molecular recognition, catalysis, and as components of luminescent and magnetic و...
Recently, phosphoramide compounds have received considerable attention as a key factor for many biologically active molecules. They also show good performance as organic dyes, flame retardants and extractants. Therefore, developing an efficient and practical method to synthesize phosphoramides is of great importance [1]. Furthermore, Phosphoryl-based compounds, can be good repr و...
Boehmite is one of the attractive mineral materials, which was recently employed as support in the synthesis of heterogenous catalysts [1]. Boehmite consists of double layers of octahedron structure from oxygen and a central aluminum atom with a cubic orthorhombic unit cell [2]. Boehmite nanomaterials have unique properties such as excellent surface area, nanometer size of crys و...
The manganese complex of the sulfonated derivatives of meso-tetrakis(4-methoxyphenyl)porphyrin, H2T(4-OCH3)PP, meso-tetrakis(2-chlorophenyl)porphyrin, H2T(2-Cl)PPS4 also a porpyrin with cationic substituents at the meso positions, meso-tetrakis(4-methylpyridyl)porphyrin, H2TMPy, were used as catalysts in biomimetic oxidation of olefins with bulk and nano-structured iodosy و...
Primary explosives are sensitive than secondary explosives and propellants [1]. When the primary explosives subjected to a flame, heat, impact, electric spark or friction are generated a detonation wave .This compounds are used in small quantities in initiating devices such as detonators for military and civil applications [2-5]. In the present paper, a new green high energetic و...
Over the past few decades, magnetic nanoparticles have been considered by many researchers due to their unique physicochemical, magnetic and optical properties and extensive applications in the field of biomedical (such as magnetic resonance imaging (MRI), drug delivery system and magnetic hyperthermia), catalysis, information technology, telecommunication and environmental rem و...
Multi-component reactions (MCRs) have been considered as a superior synthetic approach for the preparation of libraries of biologically active compounds [1]. MCRs offer environmentally friendly methods by reducing the number of waste production, steps of the reactions, and energy consumption [1]. Silica gel is one of the most widely used solid support for various catalytic app و...
Transition metal complexes bearing N-heterocyclic carbene ligands (NHCs) have gained a place of crucial importance in numerous areas of research such as medicinal chemistry, material sciences, and homogeneous/heterogeneous catalysis. [1]. Recently, several monoligated Pd–N-heterocyclic carbene (Pd–NHC) complexes have been prepared and have demonstrated high levels of activity i و...
In this research, the structural, electrical, and dielectric properties of Mg0.8Ba0.2Al2O4 nanocrystalline ceramic were investigated. The ceramic was synthesized by gel-combustion method. Different techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM–EDX), surface area و...
Water is an essential resource for life, but the increase in population and industrialization has led to contamination of natural water resources [1]. Therefore, water purification is an essential need for society, and researchers are constantly looking for new and efficient methods of water purification [2]. One of the common and useful techniques employed for removal of synth و...
Nowadays synthesis of new ligands suitable and then preparation of their complexes are in the frontier in pure and applied inorganic chemistry. Accordingly, the iminic ligands are important, which can be coordinated to metal ions via thier iminic nitrogen atoms to form the related imine complexes. These complexes are applicable in catalytic, industrial and medicinal(as antibact و...
In this study, a facile and efficient method for the synthesis of 5-amino-7-aryl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile based on alginate/pumice copper-catalyzed multicomponent reaction of a triazole with aryl aldehyde is reported in the presence of malononitrile in DMF. A new heterogeneous and recyclable nanocatalyst based on copper iodide supported on fun و...
The CeFeO_3/MoS_2heterojunction was successfully prepared through the hydrothermal method. The synthesized heterojunction structure was characterized by various techniques and applied to the conversion of methylene blue (MB) under irradiation of visible light. To characterize the new heterojunction structure, Fourier transformed infrared (FT-IR), field emission scanning electro و...
Title: Optimization of preparation and process conditions for production of light olefins via FTS on the Fe-Co catalysts Zarin Rezaei Kamrania* Nasser Mirzaei darmarania Majid Abdoussa Saeideh Mazinania Department of Applied Chemistry, Faculty of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran * E-mail: salehan1001@gmail.com Catalysts و...
The current work reports the effect of post-synthetic surface modification of a Zn-MOF on the catalytic synthesis of benzimidazole derivatives. For this purpose, the most suitable functional groups for the catalytic formation of benzimidazole derivatives such as Lewis acid, Lewis base, Brønsted acid, and Brønsted base were introduced on the surface of the Zn-MOF. The catalytic و...
Extraction and transportation of crude oil led to extensive environmental effects such as leakage into the water resources [1, 2]. Therefore, it is very important to develop new and environmental friendly methods that can remove and separate these pollutants from water and effluent with high performance [3]. Therefore, the main objevtive of the present study was synthesis and a و...
The presence of dyes in wastewater is a major environmental concern due to their harmful effects on aquatic life and human health. Therefore, the development of efficient and sustainable methods for the removal of dyes from wastewater is of great importance. Photocatalysis has emerged as a promising technology for the removal of dyes from wastewater due to its high efficiency a و...
Schiff bases or imines are one class of important ligands in the Inorganic chemistry. The easily coordination of these ligands to various metal ions causes the researchers to synthesized and characterized them that strongly develpoe the coordination chemistry in many aspects.. Schiff bases and their metal complexes have various applications especially in medicinal fields. Thes و...
With the increasing development of industries, water pollution by organic pollutants such as dyes has become a serious environmental crisis [1]. The purpose of this research is to design and synthesize an environmentally friendly nanocomposit based on layered double hydroxide (LDH) to enhance the separation of charge carriers and improve the photocatalytic performance for the d و...
Polyoxometalates (POMs) are a large group of metal-oxygen cluster anions that have unique structural and electronic characteristics . Therefore they have many applications in various fields . One of the essential applications of POMs, specially Keggin-type POMs, is in the electrochemistry field . The stability of these compounds in aqueous environment and with increasing pH dec و...
SAPO-34/ZSM-5 catalyst has been synthesized by using different amounts of processed ZSM-5 seeds at 100°C in order to control the selectivity of light olefins and increase the lifetime. The catalytic properties and performance of SAPO-34/ZSM-5 were different compared to conventional SAPO-34. The synthesized samples were characterized using XRD, FESEM, FTIR, BET, and NH3TPD. The و...
Functionalization of fullerenes C60 and investigation of their new properties, in particular biological and reactivity studies of these compounds have attracted the attention of academic researchers in the past decades [1]. Although there are many reports of metallofullerenes [2], few studies have focused on the Pd/Pt-cyclopropa[60]fullerene complexes bearing phosphorus ligands و...
In this article, the effect of using the IM20-80 polymer additive (graft impact modifier) instead of chlorinated polyethylene on the mechanical properties, especially the impact behavior of hard polyvinyl chloride with the material formulation of PVC connection systems, has been studied and compared. Is. Raw materials include PVC resin, thermal stabilizer, filler, pigment, inte و...
The targeted delivery of anti-cancer drugs exclusively to tumor cells presents an appealing strategy as it amplifies the therapeutic effectiveness compared to non-targeted medications. To enhance the cellular uptake of chemotherapeutic agents, nanoscale delivery systems incorporating polyethylene glycol (PEG) as a surface covering, along with aptamer-conjugated nanoparticles ca و...
Homogeneous catalysts, which have been widely utilized to catalyze chemical processes, have low recoverability, reusability, and stability [1]. To circumvent these constraints, heterogeneous catalysts that are more efficient and environmentally benign are being investigated [2-3]. Several investigations have been carried out in which supported precious metals, such as palladium و...
This work presents the preparation and characterization of a novel synthesized Tungsten trioxide and Nickel Cobaltite hybrid (WO3/NiCo2O4) and investigates its photocatalytic activity for Methylene Blue (MB) decomposition under UV radiation. The nanopowder of WO3/NiCo2O4 was synthesized by hydrothermal method. The samples using various mass ratios (1:1, 1:2, and 2:1) of WO3 and و...
There is an increasing research interest of yellow pigment for coloring ceramics that must show thermal and chemical stability at high temperature [1]. Throughout history various yellow ceramic pigments have been used: yellow of vanadium-zirconia, tin-vanadium yellow, cadmium yellows, lead antimoniate , etc. The praseodymium zircon (Pr-ZrSiO4) yellow ceramic pigment is believed و...
Spherical nucleic acids (SNAs) are multivalent nucleic acid structures made up of a layer of tightly packed oligonucleotides shells on the surface of a nanoparticle core. Since the first report of SNA by Mirkin et al. [1], there has been great interest in SNAs as they offer new opportunities in the field of gene and drug delivery. The DNA shell allows specific molecular recogni و...
Dehydrogenation of alkanes and allylic oxidation of alkenes are both known reactions separately, but the combination of them in a single reaction is rare [1]. There is also no report about the use of chiral catalysts in this type of reaction in order to the synthesis of chiral allylic esters. There are many ways to access enantioenriched compounds which one of them is using chi و...
In this work, a simple, efficient and cost-effective method for the synthesis of octahydroquinazolinone derivatives using dimedone, urea and aromatic aldehydes using copper- magnesium ferrite as a catalyst under solvent free condition in microwave irradiation is reported. The present method does not involve any hazardous organic solvents. This catalyst has promising features f و...
The low-spin square-planar nickel(II) complexes and high-spin octahedral nickel(II) complexes with Schiff base ligands have been received much attention in optical materials [1]. Nickel is also recognized as a considerable important biological metal forming the active site of a variety of metalloproteins such as hygrogenase, carbon monoxide dehydrogenase, and urease [2, 3]. A و...
Synthesis, characterization, computational study and covalent immobilization of H2saldien ligand on dendrimer functionalized magnetic nanoparticles for drug delivery application Tahereh Mohamadghasabi*, Seyed Nezamoddin Mirsattari aDepartment of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 31186145, Shahreza, Isfahan, Iran * E-mail: t.mohamadghasabi@yahoo.co و...
In this study, we focus on the synthesis of zinc-cobalt ferrite magnetic nanoparticles using a sol-gel technique with natural gel as the precursor. The synthesized nanoparticles were thoroughly characterized using various analytical techniques, including Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) analysis, X-ray powder diffraction (XRD), field و...
In recent decades, the fossil fuels have engendered climate changes and environmental pollution. Energy conversion and storage devices with low cost, high-efficiency and environment- friendly replaced the immoderate traditional energy. Additionally, metal chalcogenide have been used as an electrode materials for supercapacitor applications. Zinc cobalt telluride@nickel cobalt s و...
There is an increasing research interest of pigments. One of the important of this pigments is nanoparticles of Cobalt(II) silicate (Co2SiO4). The Cobalt(II) silicate has olivine structure, pink color and that applied for preparation ceramic pigments, catalysts, electronic devices and biomedical systems [1,2].Various methods have been taken to prepare the Co2SiO4 at low tempera و...
Nanomaterials are the materials that have sizes on the order of a billionth of a meter. Since the mechanical, thermal, electrical, optical, electrochemical, catalytic properties of the nanomaterials are different from the bulk materials, nanomaterials can be used in a wide variety of application fields. [1].One of the most innovative methods consists of replacing polluting chem و...
Ammonia synthesis reaction from N2 and H2 is composed of several steps. The main role of ammonia synthesis catalyst is to dissociate the N2 bond, because of its high bond energy. It is the heart of the ammonia plant and has a direct effect on the economic benefits of the whole plant, and is thus called an economic catalyst. Wustite-based ammonia synthesis catalyst (WASC) is the و...
In recent years, nanoparticles have been used as supports for the stabilization of homogeneous catalysts [1,2]. Among them, mesoporous silica materials, such as MCM-41, have high stability in aqueous solution, air atmosphere and high temperature. Large specific surface area of MCM-41 (>1000 m2/g) including a lot of silanol groups leads to ease modification of its surface [3]. و...
Human activities lead to water resources pollution. Nitrate is one of the water pollutants that is a significant environmental problem all around the world that provide a serious threat to human health. Also, the eutrophication is accelerated by increasing of nitrate concentration in water sources [1-2]. Hence, removal of nitrate from water and wastewater resources is important و...
The possible mechanisms damaging perovskite solar cells have attracted considerable attention in the photovoltaic community1-3. This paper specifically answered some open problems regarding the critical role of methylammonium iodide (MAI) in informing and stabilizing perovskite cells. Surprisingly, by using Ultraviolet–visible (UV−vis) spectra, X-ray diffraction analysis (XRD) و...
An imine or Schiff base is a chemical compound in which the C=O has been changed to a C=N [1]. Schiff base works like a ligand and may coordinate with the metals by its iminic nitrogen and another donating moiety, generally OH [2]. Numerous Schiff bases prepared from diverse amines have been studied utilizing various techniques, and it has been demonstrated that these compounds و...
Henry reaction is one of the most famous methods for the formation of carbon-carbon bonds, which is carried out through the addition of nitroalkane compounds to carbonyl-containing compounds such as aldehyde or ketone in the presence of a base and finally produces β-Nitroalcohol compounds, which are valuable raw materials are in organic synthesis [1,2]. The immobilization of ch و...
In this work, KIT-6@Schiff-base@Ce was synthesized and identified using different techniques including BET, FT-IR, WDX, SEM, EDX, and TGA. KIT-6@Schiff-base@Ce was found to be a novel and recyclable catalyst for the synthesis of sulfoxide and tetrahydrobenzo[b]pyran derivatives. Conversion of organosulfur compounds such as sulfides into sulfoxides is a topic of interest in seve و...
Carbon-Carbon bond forming reactions are among the important catalytic transformations in organic synthesis[1,2]. Heterogeneous catalysts have been highly investigated in the C-C cross coupling reactions [3]. The metal compelexs show high catalytic activities in various cross-coupling reactions of an aryl or alkenyl halide[4]. Highly efficient catalysts based on zirconium nanop و...
Advancements in material science and engineering, especially in the field of porous nanomaterials lead to new types of therapeutics and technologies. Among different types of porous nanomaterials, metal-organic frameworks (MOFs) have been considered the most promising inorganic nanomaterials due to their significant stability and ease of functionalization. To date, very lim و...
Extraction of hydrogen gas from its compounds is necessary because hydrogen gas can be found rarely in its pure form. Fossil fuels, biomass and water electrolysis are the most resources for hydrogen generation. Sodium borohydride as a non-fossil inorganic energy sources has been suggested as a source for hydrogen gas under mild conditions. Among the certain catalysts, NaBH4 can و...
In this work, a new complex of Co(II), [Co(L1)(L2)(NO3)(H2O)], with 2-(2-aminoethylamino)ethanol (L1) and 4,4-Bipyridine (L2) was prepared and characterized by elemental analysis, molar conductivity and FT-IR spectroscopy. As it is shown in Figure 1, the coordination number of the Cobalt(II) ion in the compound is six and the geometry of the complex is octahedral. The L1 unit و...
The reaction of methanol to light olefins is a non-petroleum process to produce light olefins[1]. In hydrothermal synthesis, investigating the effect of temperature is of significant importance[2]. In this study, the crystallization temperature was investigated in the synthesis of the SAPO-34 catalyst. For this purpose, by changing the crystallization temperature with a molar r و...
The growth of the global economy is exponentially increasing. The rapid growth of urbanization and industrialization releases a huge volume of wastewater that imposes adverse effects on human health[1]. The presence of organic compounds such as painkillers in water is a threat to public health; because many of them are poisonous; endocrine disruptor and mutagenic for humans and و...
Fischer-Tropsch Synthesis is a process for obtaining second generation biofuels i.e. the BTL process as well as for producing chemical feedstock or motor fuels without the production of the environmentally harmful compounds encountered in direct hydrogenation [1,2]. It has been found that several metals such as nickel, cobalt , ruthenium and iron can be activated for FT rea و...
In this study, the DNA/BSA interaction and catecholase activity of a new binuclear water-soluble Cu(II) complex [CuII2L(μ1,1-NO3)(μ-OH)(NO3)(H2O)], where L=[2,6-bis{N-(2-pyridylethyl)formidoyl}-4-methylphenol] involving μ-phenoxo N2O4 Schiff base ligand, have been studied. The complex interaction with FS-DNA/BSA was investigated by absorption and fluorescence titration, cyclic و...
A new azomethine chromogenic probe, HL, based on hydrazide shiff base has been synthesized and used as a colorimetric sensor for naked-aye detection of CN− and AcO− ions in organic and semi-aqeouse media.The probe HL has been characterized using standard spectroscopic methods (IR, 1H NMR, UV-Vis) as well as elemental analysis. The anion recognition ability of HL was evaluated و...
Two–dimensional (2D) materials are widely attractive for applicaiton in next–generation nanoelectronic devices. Transition metal disulfides MS2 (M = Mo, Ti, W, and V) constitute an important class of inorganic layered compounds. Due to the unique properties, MS2 nanostructures with sheet–like morphology have been emerging as new potential materials for several applications such و...
Nitrophenols are widely used in the production of various chemical products but can pose significant threats to ecosystems and human health when released into the environment. The United States Environmental Protection Agency recognizes nitrophenols as priority organic pollutants due to their high toxicity, persistence, and bioaccumulation[1-2]. Electrochemical methods have sho و...
According to WHO, cancer is the second leading cause of diseases globally and is responsible for an evaluated 9.6 million deaths in 2018 [1]. Universally, about 1 in 6 deaths is because of cancer [2]. New anticancer chemotherapeutics, that can effectively cure this disease with minimal side effects, maintain initial importance to the world research community [3]. In this و...
A new mixed-ligand complex ([1]) has been synthesized by the reaction of Co(II) ion with 2-(2-(2-Hydroxyethylamino)ethylamino)cyclohexanol (HEAC) in the presence of pyridine-2,6-dicarboxylic acid, (PDCA), and identified by elemental analysis and FT-IR spectroscopy. In the complex, the HEAC coordinates through two N-atoms, and PDC coordinates through one N- and two O- which fo و...
In this work, a novel copper(II) coordination compound is synthesized using Carbonylbis(azanediyl)dibenzoic acid (CAD) as ligand (Cu(II)-CAD). The structural, and morphological property of the synthesized material are investigated using FT-IR, CHN, FE-SEM, BET and PXRD analyses. Evaluation of the obtained results indicates that CAD coordinated to copper ions. Ammonium nitrate ( و...
In this study, a novel zinc complex immobilized covalently on CoFe2O4 magnetite nanoparticles was synthesized. The nanocatalyst was characterized thoroughly using thermogravimetric analyses (TGA), Fourier Transform Infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray (EDX), inductively coupled plasma optical emission spectroscopy (ICP-OES), و...
Anticancer cells and antimicrobial activity of new mixed metal 〖[Cu_2 〖(BPA)〗_2 〖(VOF_5)〗_2]〗_n Complex (BPA = 2,2-Bipyridineamine) at Bulk and Nano-sized have been studied and these new unusually structure complex characterized by elemental analysis, IR spectroscopy and its structures studied by single Crystal X-ray crystallography. Nanopowder of this compound synthesized by s و...
Ionic liquids (ILs) have been recognized as appropriate green catalysts/solvents in organic transformations. This is due to their remarkable properties such as negligible vapor pressure, thermal stability over a wide temperature range,non-flammability and ability to dissolve organic and inorganic compounds. Nevertheless, several drawbacks of ILs such as high cost, high viscosit و...
Recently, the rational construction of nanozyme by mimicking the active site of natural enzyme has become a hot spot to endow the bioinspired nanozyme with equal or even higher catalytic performance in comprison with natural enzyme. Generally, the biomimetic nanozymes reported in previous studies were prepared based on precise multistep synthetic method or complex ligan و...
In recent years, nanotechnology is widely used in sensing, biomedicine, food industry, agriculture and etc. as a newly developed science and technology, in which nanomaterials with enzyme-like catalytic activity, namely nanozyme, have been used in the development of new chemosensors [1]. Recently, nanozymes have drawn extensively studied for their applications in bioanalysis, d و...
Polyoxometalates, including heteropolyoxometalates and isopolyoxometalates, can be used as excellent catalysts for both acid-catalyzed reactions and oxidation reactions [1]. The synthesis and characterization of new transition-metal-substituted (d-and f-block) polyoxometalates continues to be a focus of considerable ongoing research. Highly tunable nature of these compounds, co و...
In recent years ionic liquids (ILs) have become a promising area of concern for organic chemists due to their distinctive properties such as high thermal stability, low vapor pressure, high load capacity, ease of recycling and environmental friendliness [1]. Tropine, a bicyclo structured compound, is one of the important tropane alkaloids which under the influence of special fe و...
Supercapacitors are energy storage devices that have gained significant attention due to their high power density and long cycle life. The performance of supercapacitors is largely dependent on the properties of their electrodes[1]. NiCo LDH/VOGN/Graphite sheet electrode with very high surface area and excellent capacitive behavior was fabricated through the anodizing of the gr و...
The research on one-pot multicomponent reactions has been an area of interest for the synthesis of N-containing heterocyclic scaffolds, such as 3,4-dihydropyridin-2-1H-(ones)/3,4-dihydropyridin-2-1H-(thiones) (DHPMs) and their derivatives. These heterocyclic compounds, particularly those with a DHPM core, have proven to have significant applications in biological and pharmacolo و...
The enantioselective formation of C-H, C-C, C-O, and C-N bonds is an attractive method for producing single enantiomers, and chiral catalysts are the most effective means of achieving this goal [1]. Chiral Betti bases are one of the important classes of compounds that possess beneficial biological properties and have been extensively studied for their catalytic applications in و...
Visual sensors based on Metal Organic Frameworks (MOFs) in the detection of gases and vapors are known as vapochromic systems. The color change of MOFs is easily visible with the naked eye and is the simplest answer in sensing and detecting gaseous species [1]. In this work, a cobalt-organic framework (Co(II)-MOF) has been perpared by the reaction of mix bis-pyridyl and dicarb و...
The objective of this study is to synthesize ETS-10 and modify its surface area, pore volume, and pore size. ETS-10 adsorbent, with a Si/Ti ratio of 5.5, was synthesized without seeds using the hydrothermal method[1]. To modify ETS-10, organic templates such as tetrapropylammonium bromide and P123, as well as a specific weight percentage of isopropanol as a solvent, were used. و...
The chemistry of 1,1,1-tris(diphenylphosphino)methane (tppm) as a ligand is less explored in comparison with bis(diphenylphosphino)methane(dppm), and only a handful of studies are documented in the literature. This ligand opens up an opportunity for systematic investigation of the steric and electronic effects on chemical and physical properties, in which, by purposeful variati و...
Catalases, in biological systems, serve as protectors against oxidative damages resulting from hydrogen peroxide [1]. This enzyme transforms millions of hydrogen peroxide molecules into water and oxygen every second [2]. It exhibits the highest concentration in the liver, kidneys, pancreas, and red blood cells [3]. The active site of this enzyme comprises an iron porphyrin.In t و...
Oil pollution is one of the causes of air pollution, which will have harmful effects on human health. Also, in addition to the presence of sulfur compounds, especially mercaptans, in oil cuts, it causes environmental pollution, but it also causes corrosion in transmission lines and storage tanks. Therefore, it is necessary to adopt appropriate methods to remove the amount of su و...
In this study, zinc-nickel ferrite magnetic nanoparticles were synthesized using the sol-gel method. The synthesized nanoparticles were characterized using various techniques including field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), dispersive X-ray analysis (EDX), Brunauer-Emmett-Teller (BET), Fourier transf و...
Currently, the design and synthesis of metal-organic frameworks (MOFs) attract broad attention because of the interesting structural architectures and topological features which have a key role in the final behavior of their application [1]. In order to construct porous compound networks, the common strategy is employed based on the suited selection of organic linkers and metal و...
Coordination polymers (CPs) have been undergoing rapid development due to their facile functionalization [1], diverse topologies [2] and varied potential applications [3,4]. Supramolecular isomerism is used to describe the existence of more than one type of supramolecular network for a given set of components. To the best of our knowledge, research on the concomitant formation و...
This research describes the synthesis and charactrization of new mononuclear cobalt(II) and binuclear copper(II) complexes with the tetradentate ligand: N,N"-bis(ortho-carbonyl, benzoic acid) 1,3-diaminopropane dihydrochloride (L), which is divided into the following two parts: In the first part, the ligand (L) is synthesized from the reaction of trimethylene diamine compound و...
In this work, a heterostructured metallic Bi/MoS2 photocatalyst (MBix) was prepared via uniform decoration of plasmonic bismuth nanoparticles onto the surface of MoS2 nanosheets. MBix catalysts were then loaded onto the surface of reduced graphene oxide (RGO) using a simple hydrothermal method to form RGO/MBix nanocomposite. RGO/MBix heterostructures demonstrated significantly و...
Nickel Chromite nanoparticles were successfully synthesized via a modified sol-gel method using nickel acetate and ammonium dichromate in melted stearic acid as a complexing agent. The diffractograms of the nanoparticles confirmed a pure formation of NiCr2O4 spinel without any minor phase. The coordination structure of as prepared nanoparticles shows a series of absorption و...
In this study, the adsorption kinetics of Phenobarbital on Fe3O4/SBA-16-NH2 magnetic nanocomposite as a drug carrier were investigated. For this purpose, in the first step, the SBA- 16-NH2 mesostructure was synthesized using pluronic f127 as a structural determinant. XRD, SEM and FT-IR analyses were prepared from the synthesis samples. After confirming the mesostructure, و...
Abstract In this study attempts has been made to prepare modified carbon dots (CDs) with branch poly (ethyleneimine) (BPEI) from citric acid, as carbon source, in water at 200 ͦC, followed by immobilized different Cu compounds on it and designated as Cu-BPEI-CDs nanocomposites Then it was used as catalyst for the terminal alkynes homocoupling reaction. The straight approach و...
The Oxidative Coupling of Methane (OCM) reaction [1] holds significant potential for the production of valuable products from methane. However, it is confronted with several challenges, including low selectivity towards the desired products, rapid catalyst deactivation caused by coking and sintering phenomena, and high energy requirements for the reaction conditions. As a resu و...
Ionic liquids (ILs) are a class of non-molecular compounds that are composed solely of ions. Researches on ionic liquids have moved toward the consciously selection and design of these materials due to their increased rate, property, and performance. The design of ionic liquids focuses on the development of new cations and anions to create the essential specific physical proper و...
Today, tissue engineering has been given much attention in order to restore damaged tissues, especially bone tissue, and improve its function. For the regeneration of bone tissue, a scaffold with biological and biochemical properties is needed that can have high biocompatibility and porosity that can simulate the natural bone tissue [1]. Hydroxyapatite has a chemical compositio و...
* E-mail: mehdi806@gmail.com Transition metal (TM) alkyne π complexes are key compounds in organic synthesis and catalysis [1]. Such complexes form during catalytic processes and are important intermediates in many metal catalyzed reactions in inorganic chemistry [2]. The structure optimization of the complexes has been done at the M05/def2-SVP level of th و...
The accuracy of geometries is important for predicting the electronic properties of molecular systems using computational methods. A previous investigation has indicated that there exist two local minima for [4Fe–4S] clusters in proteins when optimized with a density functional theory (DFT) method [1]. In this work, we performed a detailed study of two distinct local minima for و...
Benzimidazoquinazolinones are heterocyclic compounds that have been shown various pharamacological activities such as anti-cancer, anti-inflammatory, anti-oxidant, antimicrobial and neuroprotective activity. The diverse pharmacological activities exhibited by benzimidazoquinazoinone make it a promising lead compound for the development of novel therapeutic agents. These attempt و...
Mercury ion is of importance in biological and chemical point of view. This metal ion also forms useful amalgams with many metals, which has various applications in a variety of industrial and medicinal research fields. Because of the diverse applications and the toxic character of mercury compounds, there is a need to develop the cheistry and especilly coordination chemistry o و...
After the discovery of carbon nanoparticles, great attention focused on other nanoparticles and nanocages such as C20 nanocage due to thermal stability, high conductivity, high hardness, gas sensing, hydrogen storage, electronic devices [1], and other adsorption properties[2‒3]. The aim of this study is to investigate the adsorption of hydroxy carbamide (HCA) drug on the sur و...
Recyclable and high efficient catalysts are one of the principles of green chemistry [1]. Therefore difficult recovering of the homogeneous catalysts and low catalytic activity of the heterogeneous catalysts are main challenges chemists [2]. To overcome on these problems, the nanostructure catalysts emerged as ideal catalysts because nanocatalysts have a heterogeneous nature wi و...
Alumina nanoparticles have attracted much attention due to their unique properties and potential applications in various fields such as electronics, catalysis, biomedical engineering, energy, etc. Alumina nanoparticles can be prepared and synthesized through various methods such as sol-gel, hydrothermal, deposition, combustion, etc. The properties of alumina nanoparticles inclu و...
In this paper, MCM-41@Schiff-base@La as a novel, green, heterogeneous, and extremely efficient nanocatalyst was successfully synthesized by the immobilization of La complex on MCM-41 modified mesoporous silica. The prepared catalyst was characterized by TGA, FT-IR, ICP, BET, SEM and EDX techniques. The synthesized nanoparticle was sused as a recyclability catalyst for synthesis و...
The synthesis of 3,4-dihydropyrimidin-2-(1H)-ones (Biginelli compounds) and their derivatives is of great interest due to their diverse therapeutic and pharmacological properties, including antiviral, antibacterial, antitumor, and antihypertensive activities. These compounds have also been utilized as calcium channel blockers, α-1a-antagonists, and neuropeptide Y (NPY) antagoni و...
Multi-phase solids that have one of the components with features between 1 and 100 nm, refer to nanocomposites or structures that have repeating distances in the nanoscale between the different phases that make up the material or structures with repeating distances in the nano scale between the different phases that make up the material [1]. The resent work reports synthesis of و...
Recently, oxide perovskites with the general formula ABO3 have attracted the attention of many scientists [1]. Cerium cobalt oxide perovskite, represented by CeCoO3, exhibits promising capabilities as a nanophotocatalyst in the conversion of organic dyes [1]. Additionally, Cobalt(II) sulfide (CdS), a semiconductor, shows high performance in light absorption due to its suitable و...
Microalgae are valuable organisms due to their ability to produce various beneficial products for human utilization [1].Understanding the interface interactions between microalgae cells and magnetic nanoparticles (MNPs) is essential for effective magnetic harvesting of microalgae using MNPs.In order to make large-scale microalgae cultivation economically viable, it is crucial t و...
Title: Synthesis of mesoporous MCM-41 silica nanoparticles and surface modified by chitosan functionalized with folic acid for targeted drug delivery and controlled release Nasser Mirzaei darmarania*, Zarin Rezaei Kamrania, Morteza Rezaeia, Majid Abdoussa, Saeideh Mazinania Department of Applied Chemistry, Faculty of Chemistry, Amirkabir University of Technology (Tehran Polyt و...
Pregabalin (PGB), has already shown great potential in clinical applications as an analgesic, anticonvulsant, and anxiolytic drug [1]. A suitable reaction for the production of PGB is the enzymatic desymmetrization of 3-isobutyl glutarimide (IBI) to R-3-isobutyl glutaric acid monoamide (R-IBM), which can be converted to S-PGB by the Hofmann rearrangement. PGB is a chiral compou و...
Energy has been one of the important issues considered by the world powers and researchers, and many efforts has been made to invent and develop for energy storage. Capacitors as one of the storage devices has a high power density and high energy, and play a great role in the world needs. The main aim of the present research has been the preparation of the core-shell nanopartic و...
The existence of dyes as contaminants in wastewater sources from the textile industry can lead to serious health problems if not treated properly. Furthermore, the release of dye effluents into the aqueous environment can pose serious problems for human health and the environment [1-3]. Herein, the separation of dyes over two isoreticular nanoporous Zn(II)-MOFs known as TMU-17 و...
N-Heterocyclic carbenes (NHCs) have been extensively investigated over the last two cades due to their applications in various fields like as spectator ligands in catalytically active complexes, [1] in materials science, [2] as biologically active compounds [3] and very recently also in metallosupramolecular chemistry [4]. In the field of synthesis and investigation of trinucle و...
Metal-organic frameworks are structures that consist of metal ions or clusters coordinated with organic ligands. They have a high surface area, tunable pore size, and customizable properties that make them attractive for a wide range of applications. Some of the applications of MOFs include: the production of implants, drug delivery systems, medical imaging, Sensor, Energy stor و...
Cobalt oxide nanoparticles are semiconducting metal oxide type that can display unusual chemical features in nanotechnology due to their tiny mass and high limit density, especially in biomedical systems, optics, and electronics. [1] Cobalt oxide NP is non-hygroscopic, non-toxic, and commonly found in organic, polar, crystalline material that has aroused interest in organic tra و...
Recent years have seen a rejuvenation of interest in studies on the interaction mechanism of deoxyribonucleic acid (DNA) with small molecules, especially in interaction with drugs [1, 2]. In this project, the interaction of the drug sotalol (SOT) and its Cu(II) complex (CuSOT) with calf thymus DNA (ct-DNA) was investigated using viscosity measurements, UV-Vis spectroscopy a و...
In this study, zeolite beta with three dimensional structure was synthesized using hydrothermal method by tetraethyl ammonium hydroxide as template[1]. The mesoporous form of the zeolite was obtained by post-synthesis method by adding a surfactant structure-directing agent into a suspention containing the previousely synthesized zeolite. Functionalizing process was done with 3 و...
Parvin Banavi,a Morteza Montazerozohori*a, Reza Naghihab, Shiva Jooharic aDepartment of Chemistry, Faculty of Science, Yasouj University, Yasouj, Iran bDepartment of Animal Sciences, Faculty of Agriculture, Yasouj University, Yasouj, Iran bDepartment of Basic Sciences, Yasooj Branch, Islamic Azad University, Yasooj, Iran * E-mail: mmzohory@yahoo.com Metal Schiff base ligan و...
The pollution of surface and groundwater with heavy metals is a serious global concern, both environmentally, as well as with respect to human health. Recently, porous metal-organic frameworks (MOFs), with metallic clusters and organic linkers, have been developed as promising structures in capturing different toxic and hazardous substances, including heavy metal ions, because و...
anticancer activity of titanocene dichloride has been discovered in the 1980 and since then it has attracted continuous attention in the experimental literature . in this work hydrolysis of the anticancer drug titanocene dichloride complex was illustrated using quantum mechanical method . Bp86 functional and basis sets of 6311G and Def2TZVPPD for main group element and Ti atoms و...
One approach to mitigating global warming is the capture and storage of CO2 as the major greenhouse gas. Materials that are commonly used for CO2 adsorption include activated carbon, zeolites, and metal-organic frameworks (MOFs). HKUST-1 (also known as MOF-199) is a well-known metal-organic framework that has been extensively studied for its potential applications in gas storag و...
An ab initio study of the complexes formed by N-methylidenemethanamine(C2H5N )with HYX (Y=O, S and X=F, Cl, Br and I) has been carried out at the MP2/aug-cc-PVDZ computational level. Interaction of HOX with N-methylidenemethanamine (C2H5N ) lead to both hydrogen bond (C2H5N -HB) as well as halogen bond (C2H5N -XB) complexes Meanwhile Interaction of HSX with N-methylidenemethana و...
A main reaction in biological and chemical processes is the conversion of thiols to disulfides [1]. The disulfide bond formation in active biochemical molecules, peptides, and sweet oil processing is essential. Besides, disulfides, as a highly beneficial class of compounds, are applied in various industrial and biological processes such as peptide stabilization in proteins, DNA و...
Metal-organic frameworks (MOFs) are a new type of nano-porous [1] coordination networks [2] which composed of metal ions or clusters linked by organic ligands[3]. Metal-organic frameworks due to the characteristics of both groups, are considered as suitable materials in drug delivery [4, 5]. Generally, in recent years, MOFs have received much attention which is attributed to th و...
High catalytic activity is usually observed in the homogeneous catalyst systems [1]. However, purification of the products and recovery of the catalyst is often difficult and time consuming in the homogeneous catalyst systems [2]. In the other hand, clean technology and green chemistry require the use of recyclable catalysts [3]. While we need to a catalytic systems which have و...
Metal bis-dithiolene complexes have indeed been the subject of extensive study by chemists in both the inorganic and organic fields in recent decades. This is due to their wide range of applications in various areas, including conducting and magnetic molecular materials, as well as their relevant optical properties [1]. Dithiolenes exist in three different forms with varying ch و...
Oximes are a significant class of bioactive organic compounds that possess a functional group consisting of an imine connected to a hydroxylamine (C=N-OH) group. The amphoteric nature of the oxime functional group arises from a slightly basic nitrogen atom in the imine group and a slightly acidic hydroxyl group, giving rise to excellent ligands for coordination chemistry [1]. C و...
since the isomerization process plays an important role in various industries, increasing the efficiency of these processes is an inevitable necessity [1]. In this research, using platinum catalyst, we tried to obtain the efficiency by changing the numerical value of temperature parameters, weight percentage of zirconium and hydrogen flow. The process of n-heptane isomerization و...
This study has focused on a series of zinc porphyrins that have been used as hole-transporting layers in perovskite solar cells. Hole-transport layers act a significant role in perovskite solar cells for attaining favorable photovoltaic performance with durability. Meanwhile, this series is brominated by NBS(N-bromosuccinimide) which can affect to modulate redox potentials, and و...
In this research, the absorption kinetics of cefazolin and cefixime antibiotics on SBA-16/g-C3N4/Fe3O4 magnetic nanocomposite as adsorbent was studied. For this purpose, SBA-16/g-C3N4/Fe3O4magnetic nanocomposite was synthesized in the first step. XRD, SEM and FT-IR analyzes were prepared from the synthesis sample. Then, the absorption kinetics of cefazolin and cefximber antibio و...
Isoxazoles constitute a crucial class of heterocyclic compounds composed of five-membered rings, with one oxygen and one nitrogen atom located in adjacent positions. The distinctive structural motif of isoxazole confers diverse non-covalent interactions. The transformations of their derivatives encompass electrophilic substitution reactions, nucleophilic substitution, as well a و...
The layered double hydroxides (LDHs) have several advantages such as unique structure, large intercalated anions within interlayer spaces, and uniform distribution of metals in the layered structure which make the LDHs significant layered materials [1]. Recently, intercalation using microwave- assistant method has received more attention [2]. The advantage of this process is de و...
Boehmite is γ-AlOOH and it is the most stable phase of alumina after gibbsite [1], which contains high aggregation of hydroxyl groups on its surface [2]. Therefore boehmite nanoparticles can be used as an excellent support for fabrication of heterogeneous catalysts [3]. Consequently at first part of this work, boehmite nanoparticles were modified using 3-choloropropyltrimtoxysi و...
Zeolite imidazolate frameworks (ZIFs) have gained more attention in recent years [1]. ZIFs are a new and special class of metal–organic frameworks (MOFs), that potentially have the advantages of both inorganic zeolites (for instance, high stability) and of MOFs (for instance, high porosity, high surface area and organic functionality), which are applied to high performance in s و...
In recent years, the conversion of carbon dioxide (CO2) into valuable compounds has gained significant attention as a way to decrease the green house gas CO2 [1]. In this study, we focused on the functionalization of hexamethylenetetramine (HMTA) with a halogen and then investigate its catalytic activity for converting CO2 to cyclic carbonates. HMTA was converted to HMTA+X- wh و...
Non-renewable energy sources such as fossil fuels are still the first choice in energy resources. However, in order to maintain energy security and avoid the environmental problems caused by these energies, such as the greenhouse effect and air pollution, the focus should be shifted to renewable energy sources. These renewable energies have many advantages, such as harmlessness و...
Accurate evaluation of trace organic pollutants such as Cyanotoxins with facile methods, is critical to prevention and controling of environmental pollutants ([1], [7], [8]). Electrochemiluminescence (ECL) assay as an impressive analytical technique has attracted significant interest in recognition and sensing ([2], [3], [4]). Herein, we proposed a moleculary imprinted polymer و...
Over the past decades, the desulfurization of fuel oils has been known as one of the most challenging processes in petroleum refineries due to economic considerations. The presence of sulfur compounds results in SOx emissions detrimentally affecting the equipment of refineries, the environment, and human health . Due to the presence of unique characteristics, nanoparticles are و...
Nowadays, the use of electrical appliances to supply the daily electrical energy that can replace the use of fossil fuels is very indispensable and important. Not only the harmful phenomena of greenhouse gas production and the increase in earth"s heat, but also the dependence of clean energy generation such as solar and wind energy on weather conditions, has pushed researchers و...
In this study, the particle size of ilmenite soil was measured by leaching with hydrochloric acid to obtain high-purity and high-quality titanium dioxide pigment. The stages of acid (HCL 37%) leaching, reduction, hydrolysis, and calcination were performed. The calcination stage was investigated, which is one of the most important stages but unfortunately is not considered in ma و...
Coordination polymers (CPs) defined as coordination compounds with extended bonding in one, two, or three dimensions have become one of the main objects of study in crystal engeenering due to their potential applications in sensing [1], catalyst [2], gas storage and separation [3], drug delivery [4], and so on. The preparation of CPs in which the network topology is controlled و...
Oxidative addition involves the attachment of two groups A−B to a metal complex of relatively low oxidation state. This produces a new complex with an oxidation state two units higher than before. Reductive elimination reaction is exactly the opposite of the oxidative addition reaction during which A and B are removed from metal center, during this process the oxidation number و...
A mixed-ligand complex ([1]) consisting of [Cu(NO3)2].3H2O, [2,4,6-trihydrazineyl-1,3,5-triazine] (THT), and Pyridine-2,6-dicarboxylic acid (PDCA) was synthesized and characterized using FT-IR spectroscopy and CHN analysis. The complex [Cu(THT)(PDC)] possesses a unique combination of ligands and has potential applications in coordination chemistry. The complex has a distorted s و...
Schiff bases are chemicals that have been functionalized with azomethine or imine and have a wide range of therapeutic uses [1]. The Schiff base macrocyclic complexes are studied widely because of their easy synthesis, versatility and wide range of applications [2]. Schiff base complexes have significantly contributed to the development of modern drug design due to their signif و...
The structural formula ABO3 describes perovskite oxide in general [1]. Perovskite oxides have garnered a lot of interest because of their high activity, abundance, and availability along with their optical and electrical properties, chemical stability, and lack of toxicity [2].Prosecite oxides" ability to act as catalysts in a variety of chemical processes is one of their most و...
Metal-organic frameworks (MOFs) are crystalline compounds that can form porous 1D, 2D or 3D structures. MOFs have attracted many researchers attention in drug delivery, catalysis, gas storage, and other applications because of their high specific surface area, large porosity, and adjustable chemical functions. MOF-74-type frameworks are considered one of the most promising met و...
In this study, Nitroso−Diels–Alder (NDA)cycloaddition reaction between the H3CN=O and cis-1,3−butadiene in the presence of the CuX (X=F,Cl, Br, I) as Lewis acid catalyst, using density functional theory calculations at the M06-2X/def2-svp level of theory [1], has been studied. The NDA reaction is a chemical reaction for the construction of six-membered rings [2]. The copper(I)- و...
N-heterocyclic carbenes (NHCs) as ligands in organometallic chemistry are subjects of growing interest, and this is not surprising since they form highly stable complexes that result froma very strong bond with the metal centre [1]. Gold complexes bearing N-heterocyclic carbene are currently one of the most promising classes of substances for drug research [2].Complexes of silv و...
Metalloenzymes are enzymes that use a metal cation as a cofactor in their active site. They catalyze various reactions, such as hydrolysis, oxidation, and reduction. Some examples of metalloenzymes are hydrogenases, which facilitate the uptake of molecular hydrogen; superoxide dismutase, which inhibits the oxidative damage to cells; nitrogenase, which enables the fixation of at و...
Copper zinc cobalt ferrite nanoparticles modified by cetyltrimethylammonium bromide (Cu0.3Zn0.3Co0.4Fe2O4@CTAB NPs) are used as an efficient adsorbent to remove Entacapone (En) drug from aqueous solutions. The characterization of adsorbent is investigated by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectro و...
The use of metal-organic frameworks(MOFs) is constantly expanding. MIL-125 is one of the most important and widely used cases[1]. Several methods have been reported for the synthesis of this framework, such as the use of reflux and autoclave in solvothermal synthesis[2]. Synthesis time is one of the most important parameters in synthesis, which includes energy consumption and t و...
Fluorescent carbon dots (CDs), a new member of the carbon nanomaterial family, have drawn considerable attention in the fields of optoelectronic devices, biological labeling and biomedicine.Typically, CDs are small oxygenous carbon nanoparticles with sizes blow 10 nm, displaying size and excitation wavelength dependent photoluminescence (PL) behavior.A simple and green approach و...
One of the most important research areas in the organometallic chemistry is C-H bond activation in cyclopalladated complexes [1, 2]. Palladacycles have been known over 30 years [3] and have gained great interest due to their applications in many areas including organic synthesis [4]. The interest in cyclopalladated complexes derived from N-donor ligands has increased considerab و...
Nitrate is one of the most important pollutants in nature, which is considered a serious threat to human health and the quality of water resources. One of the methods to remove this pollutant is the use of modified adsorbents such as oxide nanoparticles on clinoptilolite zeolite[1]. In this study, the samples were prepared synthetically at a concentration of 100 mg/liter of ni و...
In this work, zinc (II) and copper (II) complexes with a mixture of lamotrigine (L) and deferiprone (D) as pharmaceutical ligands with chemical formulas [Zn2D2L2(OH2)2].(NO3)2 and CuDL2.NO3 were synthesized. The characteristics of these complexes were identified by infrared and ultraviolet-visible absorption spectroscopy techniques and their structure was determined by singl و...
Hybrid organic-inorganic perovskite solar cells (PSCs) have recently become one of the most efficient materials for photovoltaic applications [1]. Formamidinium lead triiodide (FAPbI3) perovskites possess high light absorption and stability, making them strong candidates for efficient solar cells, yet they suffer from toxicity. The optoelectronic characteristics of environmenta و...
Naphthalene-based structures and imine systems have diverse multidisciplinary applications, including the assembly of cyclophanes, helicates, dimers, trimmers, and grids[1-3]. The authors synthesized a compound using 1,6-diaminonaphthalene and pyridine-2-carbaldehyde through refluxing in extra-pure ethanol. The resulting crystal was characterized using single crystal X-ray diff و...
In this work, the thermodynamic parameters related to the loading of carbamazepine drug on TiO2/SBA-16-NH2 nanocomposites were studied. Thermodynamic factors were computed for comprehend the loading process; the following equations have been used in the calculation [1, 2]: The values of ΔH0 and ΔS0 were reached from the data of lnKc versus 1/T (Fig. 1). The thermodynamic values و...
The enzyme heme oxygenase (HO) plays an essential role in the destruction of heme molecules. Heme oxygenase uses dioxygen to open the specific orientation of the porphyrin ring at the position of the α-meso carbon. This enzyme catalyses the degradation of heme to biliverdin IXα through three distinct intermediates, α-hydroxyheme, α-verdoheme and ferric biliverdin–Iron chelate, و...
In this research we report synthesis, characterization, crystal structure and spectroscopic properties of a new dinuclear copper(II) complex with polyamines ligand. The complex was synthesized by the reaction of Cu(NO3)2.3H2O and multidentate Schif base ligand (H4L) and sodium azide in methanol solvent. The reaction mixture was heated to reflux for 12 hours and the green precip و...
In this paper, a facile and efficient method for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones based on the acid-catalyzed multicomponent reaction of dimedone, hydrazine, and phthalic anhydride with aldehydes reported in the presence of Fe3O4/eggshell/CS@HSO4 in solvent-free. We have synthesized a new nanocomposite material in which eggshell membranes act as nucleation و...
There are some well-known methodologies for evaluating the cooperativity of intermolecular noncovalent bonds [1,2]. However, in this work, we report our methodology for study on the intrinsic cooperativity of both intermolecular noncovalent bonds and intramolecular metal–ligand bonds. Indeed, we improve and extend the methodology proposed in our research group [3] and show that و...
Tetraalkylammonium (TAA) salts are used in many environmental and biological processes because of possessing both ionic and hydrophobic properties [1]. The possibility of evaluating the effects of TAA salt’s alkyl chain length and anion type on the interactions governing the solution behavior causes TAA salts to be a good choice for investigating the soluting effects occurring و...
With the development of global industrial and manufacturing activities reduction of aromatic and aliphatic nitro compounds has become a more serious and critical issue. Synthetic procedures of the active nanocatalysts are toxic, expensive and harmful for envirenment. accordingly, many efforts have been devoted to achieve green methods for the synthesis of nanocatalysts, avoidin و...
یک پلیمر نانوذره به عنوان یک پلت فرم بالقوه برای تحویل دارو توسعه یافته است. نانوکامپوزیت نانورس/کیتوسان با تری پلی فسفات (TPP) به روش اتصال عرضی یونی تهیه شد. اندازه ذرات نانوکامپوزیت نانورس / کیتوزان در محدوده 190 تا 250 نانومتر و راندمان کپسولاسیون لووتیروکسین 85 درصد بود. یک راه غیر تهاجمی برای رساندن دارو به عمیق ترین قسمت های بدن انسان، سونوگرافی است. برای بررسی اینکه چگو و...
UiO-66-NH2 is a type of metal-organic framework based on zirconium which has higher thermal and chemical stability than other metal-organic frameworks. furthermore, the NH2 group in Metal-organic framework UiO-66-NH2 can be functionalized with chiral ligands [1]. The formation of C–C bonds in the manufacture of valuable molecules using MOFs as heterogeneous catalysts is an impo و...
Oxygen-evolution reaction (OER) through water oxidation under acidic conditions mediated by efficient and stable first-row transition metal compounds remains a challenge in artificial photosynthesis. A critical issue in the field is the solubility of first-row transition metal compounds during OER and under acidic conditions. In this study, the silicate-stabilized Mn oxide was و...
In this study, copper oxide on graphene oxide aerogel (CuO/rGO) was synthesized by a facile method using sodium borohydride as a reducing agent [1, 2]. The structure of the as-synthesized composite was characterized by ultraviolet–visible spectroscopy (UV–vis), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), X-ray Energy Dispersive Spectroscopy (EDS) a و...
Nowadays, using semiconductors for photocatalytic treetment of pollutants has been broadly scrutinized due to their eco-friendly and low cost [1-3]. Nano magnetic heterostructure was prepared by solvent-free thermal procedure and was characterized by variouse techniques. The pure copper bismuth oxide and a semi-hard ferrite (cobalt ferrite) illustrated poor photoactivity becaus و...
This work describes a pedagogical approach to understanding chemical bonding by emphasizing the significance of electrostatic interactions in Metal-Ligand Bonding, particularly in Transition Metal Complexes with Carbenes and Ylides Ligands. Energy Decomposition Analysis (EDA) is a powerful method for quantitatively interpreting chemical bonds in terms of three major components. و...
Cross-coupling is one of the most significant and extensively utilized methods in chemistry for linking two organic substrates using a metal catalystIn this method, two active groups (such as aryl or alkyl) are connected to each other via an alkyl radical or another reactive group. Kumada cross-coupling ([1-3]) is a specific type of cross-coupling that uses magnesium as a catal و...
Vanadium complexes derived from a number of ligands have received great attention in the last few years for their interesting medicinal and biological applications [1]. Schiff bases and their complexes possess wide biological activities, such as antibacterial, antifungal and antitumor aspects [2,3]. Three new vanadium complexes, [VO(L1-3)] where L1 is {[1-methyl-2-(2-hydroxyphe و...
We have examined the interactions between 5‒aminolevulinic acid (ALA) drug and ZnO nanostructures using DFT method. In the context of the dispersion corrected PBE technic, the energetics, charge transfer, electronic structure and equilibrium geometries have been estimated. The ZnO nanostructures showed promising performance in the ALA drug functionalization, taking into account و...
We describe a novel electrochemical cell design with a thickness of about 30 µm that comprises a carbon fiber electrode (10 µm diameter) placed through a bubble wall (or stable surfactant film) which serves as the solution. To create a durable surfactant film, we employed a solution infused with non-ionic Triton-X100 surfactants. To do electroanalysis, a modified carbon microel و...
Nanoparticles’ catalytic activity and intrinsic ability in generating or scavenging reactive oxygen species in general can be used to show the catalytic activity of natural enzymes. Many nanoparticles with enzyme-like activities have been found, potentially capable of being applied for commercial applications, such as in biosensors, pharmaceutical processes, and the food indust و...
New Zinc-Pyridine-2,6-dicarboxylic acid supramolecular compound was synthesized from zinc chloride and two ligands (pyridine-2,6-dicarboxylic acid and 2,4-diamino-6-chloropyrimidine) by using sonochemical and side branch tube methods. The compounds were characterized by X-ray diffraction and crystallography, FT-IR, XRD, TGA-DTA, 1HNMR, 13CNMR, EDS, SEM and TEM techniques. The c و...
Environmental pollution by antibiotics has severely affected human health and development. This paper presents synthesis of MOF-808 and its adsorptive performance for tetracycline (TC) removal. Adsorption kinetics and isotherms were determined from experimental data. The results show that the pseudo-second order kinetic model and the Langmuir isotherm model agree well for the a و...
In this research, the effect of adding modifire such as nanoparticles and lihands for improving the performance of nanofiltration membrane made of polyether sulfone was investigated in laboratory conditions. At first, the production of the primary membrane started with the phase inversion method with a home made instrument. Dimethylacetamide has been used as a solvent, polyviny و...
The use of plant extracts in the synthesis of nanoparticles can be an eco-friendly[1], cost-effective and easy-to-synthesize method as well as an alternative to conventional methods such as physical and chemical ones; this has made the green synthesis of nanoparticles of interest to many researchers[2,3]. As part of this work, CuO nanoparticles and nanocomposites with hydrogen و...
Hydrazine, monomethyl hydrazine (MMH), and unsymmetrical dimethyl hydrazine (UDMH), either individually or in combination, have been widely utilised in space programmes [1]. The utilisation of hydrazine-based fuels presents a significant peril to the well-being of individuals engaged in the handling, storage, and conveyance of said fuels, due to their acute toxicity and potenti و...
Ancient literature describes the anti-inflammatory and antiitch properties of oat extracts. Medical texts by Pliny and other notables promoted the topical application of oatmeal flour for a variety of dermatologic conditions [1]. Avenanthramides (AVAs) are a group of unique, low-molecular-weight hydroxycinnamoyl anthranilate alkaloids uniquely present in oats. AVAs, besides aff و...
Biobutanol, the primary four-carbon alcohol produced based on fermentation processes, has been considered a renewable energy source to reduce the emission of greenhouse gases and air pollutants [1]. Moreover, 1-butanol, having complete miscibility with organic solvents and partial miscibility with H2O, is widely used as a solvent (purely or in mixed solvent systems) in a variet و...
Due to the environmental deterioration caused by overuse of fossil fuels and generating large amounts of greenhouse gases, it is significant to develop efficient and economical techniques for producing green and renewable energy sources [1]. Among the competitive candidates, the rapid progress in hydrogen and oxygen production via electrochemical water splitting (ECWS) has made و...
Bentonite comprises a group of layered silicates. A comprehensive review of the literature reveals that the chemical composition of calcium-containing bentonite is not uniform and varies depending on its origin. In general, clay minerals consist of Si, Al, Fe, H2O, and alkaline/alkaline earth metals. The primary structure of bentonite consists of two atomic lattice units, namel و...
The plant Tribulus Terrestris locally named “Sadeng” is one of the native medicinal plants of the Baluchestan region of Iran. The plant is traditionally used as an anti-infective agent and kidney stone treatment ([1]). Many types of organic compounds, such as alkaloids, phenols, and flavonoids have been reported in phytochemical investigations of this medicinal plant ([2]). Ir و...
The increasing demand to obtain clean fuels and useful products has created an interest in finding active and selective catalysts for the conversion of carbon monoxide into desired products. The hydrogenation process of carbon monoxide is often polymerized into liquid hydrocarbon chains using catalysts. In this research, density functional theory (DFT) [1] calculations have bee و...
Sulfonation is a major industrial chemical process used to make a diverse range of products, including dyes and color intensifiers, pigments, medicinals,organic intermediates. Sulfonated aromatic rings have been shown to be promising materials for proton exchange membranes (PEM) due to their high thermal and chemical stability as well as lower-cost production compared و...
In this research, [Cu (lys bipy)] Clcomplex[1] was prepared and deposited on functionalized graphene oxide) [Cu (lys bipy)] Cl /GO ( [2]. [Cu lys bipy]Cl and [Cu (lys bipy)] Cl /GO used as a catalyst in the oxidation of olefins. The synthesized complexes was identified by EDX, ICP, SEM, FTIR and XRD[3] processes. The catalytic results of the prepared complex analyzed by GC an و...
The importance of clean water to human health necessitates the development of cutting-edge techniques for the elimination of all organic contaminants. One of the most promising strategies for getting rid of resistant organic pollutants is the employment of persulfate-based advanced oxidation processes (AOPs), which are commonly employed in the degradation of organic pollutants[ و...
Betti bases are pharmaceutically and synthetically important scaffolds that are readily synthesized through a Mannich-type three-component condensation, known as the Betti reaction, from β-naphthol, aldehyde, and 1° or 2° amine [1]. The most important application of chiral betti bases is their application in asymmetric synthesis, either as chiral ligands or chiral auxiliaries [ و...
Considering the remarkable luminescence properties and biological activities of heterobimetallic compounds, they have gained ascending and comprehensive interest in the realm of catalysis research. Additionally, the preparation of heterobimetallic complexes could be challenging and require a rational synthetic approach concerning the compatibility and stability of the ligands a و...
In this study, Mefenamic acid was intercalated into Mg-Al layered double hydroxides (LDHs) by ion exchange or coprecipitation methods to obtain mefenamic -LDHs nanohybrids. Mefenamic acid is one of the non-steroidal anti-inflammatory drugs that is used to treat some types of acute and chronic diseases. But its low dissolution rate is a limiting factor for its absorption, so in و...
Nowadays, desulfurization of liquid fuels is inevitable because of strict environmental and industrial regulations on liquid fuels specifications. Hydrodesulfurization (HDS) technology has been used widely to produce fuels with ultralow sulfur content (S ≤ 10 ppm). However, this method is not effective enough for removing refractory sulfur compounds (e.g., benzothiophene (BT), و...
Sulfur-containing compounds in middle distillate fuels are known to have negative impacts on the environment because of SOx emission from their combustion exhaust products. In order to control and monitoring sulfur compounds a variety of removal techniques are available that well documented in the literature . Among different desulfurization methods, ADS selective process is ma و...
In order to design a new heterogenous porphyrin photosensitizer, in the present study, meso-tetrakis(3-pyridyl)porphyrin was immobilized on alumina and its photocatalytic activity for the aerobic photooxidation of organic substrates was studied. It is noteworthy that due to the advantages of heterogeneous catalysts over the homogeneous counterparts [1,2] including higher stabil و...
Activated carbon (AC) is the most efficient adsorbent used for pollutant removal due to its large surface area, well-developed pore structure, high-speed adsorption and thermal and chemical stability [1]. Silver nanoparticles (AgNPs) have attracted significant attention due to their remarkable properties and diverse applications. They are important antibacterial materials as an و...
The phosphorus-nitrogen compounds, such as phosphoramides and thiophosphoramides were studied in viewpoint of their agrochemical delivery [1, 2, 3, 4]. In the presence work, new phosphorus-nitrogen compounds were synthesized and used for the study of antifungal properties. The compounds, including (R)-[(2,3-F2)C6H3C(O)NH]P(O)[NHCH(CH3)C6H5]2 (1), (S)-[(2,3-F2)C6H3C(O)NH]P(O)[NH و...
Due to the very short lifetime of the triplet state of the paramagnetic metalloporphyrins, they are found to show no photocatalytic activity for the oxidation of organic compounds, with the intermediacy of singlet oxygen as the reactive oxygen species [1,2]. In the present study, two high spin manganese(III) and iron(III) were used as photosensitizers to investigate the singlet و...
In this project, a new complex of Fe(III), [Fe(L)(NO3)(H2O)2]2+ (L: (2-((2-((2-hydroxyethyl)amino)ethyl)amino)cyclohexane-1-ol)), was prepared and identified by elemental analysis, FT-IR spectroscopy, and DFT studies. The L unit is a potentially tetradentate ligand that can be bound to the metal atoms through two N-atoms and two O-atoms but in this complex, the ligand acted as و...
Three-Dimensional ZnII coordination polymer containing 4,4´-bipyridine (4,4΄-bipy) and benzene 1,4-dicarboxilic acide (BDCA), [Zn2(-4,4΄-bipy)(-BDCA)2]n has been synthesized and characterized by elemental analysis, IR spectroscopy, Raman and its structures studied by single Crystal X-ray crystallography. ZnO nanoparticles were obtained by calcination of compound at 500ºC unde و...
Perovskite materials, as the heart of perovskite solar cells, attracted great interest in the photovoltaic community since the efficiency of perovskite solar cells (PSC) dramatically increased to over 25.8 %. However, the presence of Pb metal in the perovskite crystalline limits the progress of this new generation of solar cells from environmental aspects1, 2. Here, we have sys و...
Heterocyclic systems, in particular oxygen-containing structures, constitute a privileged group of compounds based on their wide range of biological activity. Derivatives of 4H-chromenes have attracted attention because of containing a pharmacophore group that is found in many molecules with pharmacological effects, including anticancer, antifungal, antibacterial, antioxidant, و...
The thermodynamic stability of the alkali metals complexes was investigated using theoretical studies, based on DFT by the lanl2DZ/B3LYP level of theory ([1,2]). Optimization and frequency calculations of metals, ligands and complexes were separately performed. To find the most stable of the M(NH3)n complexes the energy/coordination number diagram has been drawn. After finding و...
In this work, A new potentially octadentate macroacyclic N8 ligand containing two pyridine groups (L) was prepared from the direct reaction of a previously known dialdehyde (N’-bis(5-formylpyrrol-2-ylmethyl) (A) with 2-(aminomethyl)pyridine . The reaction of this ligand with Cu(II) metal ion resulted in the formation of a macroacyclic Schiff base complex. The compounds were cha و...
Four nanosized ZSM-5 zeolites were successfully prepared from gels with different Si/Na ratios and the same preparation procedures that included the use of tetrapropylammonium bromide as a template and a seeding method. The effect of the amount of sodium in gel on the physicochemical properties of the prepared samples was investigated by XRD, XRF, N2 physisorption, FESEM, EDX, و...
A highly crystalline porous metal-organic framework (MOF) had been investigated for water purification. The desired MOF which it is synthesized through room temperature method and is investigated for elimination of cationic dye malachite green (MG), is cerium based UiO-66 MOF (Ce-UiO-66). According to the results, this MOF can successfully adsorb this dye from water. Based on t و...
Water pollution has led to various diseases that have resulted in severe health issues and increased mortality of humans and aquatic life [1]. Therefore, to solve the problems that emanated from wastewater contamination, pharmaceutical industries came up with different classes of drugs that could improve the deteriorating health conditions of the affected population. Meanwhile, و...
Understanding the decomposition behavior and combustion products of composite solid propellants is of significant interest. Nowadays, ammonium perchlorate (AP) is extensively used in composite solid propellants as an oxidizer [1, 2]. AP has the highest effective oxygen content among the oxidizers, i.e., its oxygen balance is up to +34%. However, since AP contains Cl, the combus و...
The efficient and durable catalysis of the oxygen-evolution reaction (OER) is crucial for the conversion of energy through the water-splitting process. The OER, which involves the oxidation of water, can provide electrons for reduction reactions of H2O, CO2, and N2, leading to the production of valuable compounds. In this study, a FeNi alloy foam with a Ni:Fe ratio of 1:1 was a و...
Nowadays, combination therapies are used for the treatment of cancer. Patients who used chemotherapy; as a commonly used therapy for cancer treatment; may encounter side effects like drug resistance. Although increasing the drug dosage led to enhancement of its therapeutic effect, some side effects like resistance of cancer cells and toxicity to normal cells will be intensified و...
A new complex of Copper, [Cu(AEAE)(L)Br], containing 2,2-aminoethylaminoethan-1-ol (AEAE) and 4,4-Bipyridine (L) as ligands were prepared and its spectral (IR) and structural properties were investigated. The AEAE ligand acts as an N2O- donor in this complex by forming two five-membered chelate rings. The Copper atom has a CuN3OBr environment which proves that the coordination و...
An efficient heterogeneous catalyst has been synthesized by immobilization of nickel-vanillin complex on MCM-41 nanostructure and characterized by XRD, TGA, BET, EDS, SEM, ICP-OES and FT-IR spectroscopy. The catalytic activity and stability of the prepared compound has been studied for the synthesis of Polyhydroquinoline derivatives. The reactions were carried out in the presen و...
The presence of Cu(II) is strongly linked to the emergence of Wilson"s disease (WD), and accurately measuring the amount of copper is a crucial step in diagnosing WD at an early stage in a clinical setting 1. In this work, CQDs were fabricated using pollen and citric acid through a facile technique as a novel fluorescence-based sensing platform for detecting Cu(II) in the serum و...
Majority of industries are inherently faced with the problem of corrosion and steps for protection of materials from corrosion have been of large interest to them. In this research the potential of graphene oxide nanosheets (GO) dispersed in polyaniline (PANI) network as an efficient coating for corrosion prevention was investigated[1]. GO was synthesized from natural flake gra و...
In this project, two new tridentate Schiff base ligand and their Zinc(II) and Nickel(II) complexes have been synthesized and characterized using various spectroscopic techniques such as elemental analysis, magnetic susceptibility, conductivity,1HNMR, IR, UV-Vis spectra, Mass spectrometry powder XRD and EDX. Then their antibacterial effects are described. These new ligands beha و...
Organic dyes are the most important organic pollutants released from wastewater by different industries such as textile, printing, paper, and cosmetic industries [1]. Their non-biodegradable nature, toxicity, and potential adverse effects on human health have made them a big serious environmental concern [2]. Among various wastewater treatment approaches, adsorption-based proce و...
Transition metal complexes can be designed as prodrugs that are inactive under normal physiological conditions but become unstable with changes in the environment such as changes in pH and redox status. By deactivating the drug before reaching the target, side reactions can be reduced, and adverse side effects can be avoided [1]. The delivery of drug favipiravir (FAV) is challe و...
In this study, a novel ascorbic acid-based Ni-microsphere was prepared via the hydrothermal method. The obtained Ni-microsphere"s morphology and porosity were assessed using the following techniques: XRD, FTIR, TGA, EDS, WDX, AAS, DSC, BET, and SEM. Examining the produced MOF"s catalytic activity in cyclo-condensation and sulfoxidation reactions. It was found that Recycling the و...
A Cu@AACP Metal-Organic Framework was synthesized and characterized by TGA, FT-IR, AAS, SEM, BET, MAP and EDX. The results of the analyses confirmed the successful synthesis of Cu@accorbic acid coordination polymer (Cu@AACP). And also show any deformation of the porous structure of the parent coordination polymer. The catalytic performance was examined in synthesizing of 2, 3-d و...
In recent years, the environment has become seriously polluted as a result of the growth of industries. Polluted water sources have become a critical concern as a result of human activities, and different industrial operations have discharged organic contaminants that can cause carcinogenicity and toxicity in aquatic ecosystems [1]. In light of this, water purification has been و...
Drug resistance and lack of selectivity are major problems in the treatmen of deseases such as cancer and microbial infections. Considering thise, the design and development of new bioactive agent to devoid of many of the unpleasant side effects has become a serious challenge to medical chemists و...
Oxide spinels comprise a large group of structurally related compounds, many of which are of considerable technological significance. Aluminate spinels are of interest due to their technological applications as catalysts, refractories and pigments. Ceramic pigments are widely used in the ceramics industry as coloring agents in glazes for floor or wall whitewares and for the bul و...
Organic synthesis is one of the most important areas where catalysts are used, especially on a commercial scale, because they allow for a more cost-effective preparation of various organic compounds than would otherwise be possible. In their natural state, organo-catalysts are homogenous, but when modified as nanocatalysts, they exhibit heterogeneous catalytic behavior. Alt و...
In this research, a novel modified polyacrylonitrile fiber with an amidine functional group as an effective platform for stabilization of homogeneous active catalytic species of copper (I) iodide was prepared and its utilization as a recyclable heterogeneous catalyst for Click reaction for the first time. During this study, a new heterogeneous catalyst of copper (I) fixed on po و...
Iron complexes are known as one of the attractive catalysts for many chemical reactions [1]. The exceptional catalytic properties of iron complexes is mainly related to its several oxidation states which can act as active intermediate in the oxygen transfer reactions and redox prcoesses [2]. Selective oxidation of alcohols to aldehydes or carboxylic acids is one of the crucial و...
With the development of nanoscience and nanotechnology, chemists achieved the various catalytic reactions due to a wide variety of nanostructured catalysts or immobilization of homogeneous catalysts on nanostructured supports [1]. Among the various nanoparticles, mesoporous silica compounds especially siliceous mesocellular foams (MCFs) due to a three-dimensional mesoporous str و...
While the platinum-based anticancer agents have great therapeutic utilities [1], the types of cancer that can be cured with these agents are limited and the drugs exhibit side effects and resistance phenomena. Thus, bioinorganic synthetic chemists are continually trying to prepare non-platinum-based complexes bearing more effective, less toxic, target-specific and interact non- و...
The visible-light activated In,S-TiO2@rGO nanocomposite was prepared using an innovative ultrasonic-assisted solvothermal method. The XRD patterns indicated the anatase structure for TiO2 co-doped with indium and sulfur elements. FT-IR and Raman spectra analysis confirmed the presence of rGO in nanocomposites. In addition, SEM and HRTEM images confirmed the presence of mono-dis و...
The solution behavior of amino acid + electrolyte aqueous systems provides valuable information about the complex behavior of proteins in biological systems [1]. Further, ternary solutions of {water + amino acid + solute 2} could undergo the soluting-out phenomenon as aqueous biphasic systems formation [2] or precipitation [3]. In this respect, the liquid-liquid and solid-liqui و...
Over the past couple of decades, chiral bisoxazoline (BOX) ligands, mainly prepared from the reaction of various dicarboxylic acids and a range of chiral β-amino alcohols, have gathered increasing attention as promising ligands in numerous catalytic asymmetric transformations [1, 2]. Besides, according to the importance of recyclability of these ligands due to their high value, و...
Modern state of the art of catalysis science and research reveals that the introduction of novel nanotechnologies has enabled the generation of solid-supported heterogeneous nanoscale catalysts, which are effective tools for controlling chemical reactivity as well as conferring the synergistic benefits of facile recovery [1]. By collectively integrating the key advantages of ho و...
In this research, silver-platinum bimetallic nanoalloys electrocatalyst was prepared on nitrogen-dop graphene pencil core (NDGPC) by electrochemical deposition method. This electrocatalyst was characterization by SEM, EDS and EDS-mapping analysis and was used in two processes of ethanol electro-oxidation and glycerol electro-oxidation in alkaline media for use in direct ethanol و...
Cerium(IV) ammonium nitrate (CAN) has been extensively used as a sacrificial oxidant to study water-oxidation catalysts (WOCs). Although nickel hydroxide has been extensively investigated as WOCs, water-oxidation reaction (WOR), and mechanistic studies in the presence of CAN and nickel hydroxide were rarely performed. Herein, using in situ Raman spectroscopy, in situ X-ray abso و...
As a source of life, water plays a decisive role in the existence and development of human society. However, global water pollution has become a much more pressing issue today [1]. The frequent occurrence of oil and chemical spills has caused severe environmental pollution and environmental problems, which has made the separation of oil from water a serious challenge [2]. In th و...
The development of green synthesis of silver nanoparticles instead of using toxic chemicals has attracted the attention of researchers. Most of the proposed methods are based on the use of natural compounds of plant origin [4], with a special focus on the principles of green chemistry [1]. In this regard, the synthesis of silver nanoparticles using agricultural and industrial w و...
1H-indazolo[1,2-b]phthalazine-trione derivatives has been synthesized by Ni complex supported on MCM-41 as an efficient and reusable nanocatalyst. The reactions were carried out under solvent-free conditions at 100 °C. this catalyst can be reused for several times without any significant loss of its catalytic activity. This efficient procedure provides good catalytically and ca و...
In this work, the 3D Ga, N and F multi-doped TiO2@rGO aerogels as an efficient visible-light activated and easily separable catalyst have been successfully prepared trough simple one-pot hydrothermal method using ascorbic acid as the cross-linker and reducing agent. It can be seen that multi-doping and coupling with GO decrease the growth of TiO2 crystals. The band gap of TiO2 و...
In recent years, nanoparticles have attracted considerable research interests due to their potential applications in catalysis science and technology in alignment with the principles of green chemistry. One of the green approaches for designing and applying heterogeneous catalytic systems is the use of biopolymers as appropriate biodegradable catalytic systems or supports و...
Heterogeneous catalysis plays a crucial role in many chemical processes, including advanced organic preparations and the design and synthesis of new organic moieties [1]. Efficient and sustainable catalysts are vital to ecological and fiscal viability [2]. This is why green multicomponent reaction (MCR) approaches have gained prominence. Owing to a broad range of pharmacologica و...
Fischer–Tropsch synthesis can produce hydrocarbons using syngas derived from coal, natural gas, or biomass [1-3]. Supported cobalt catalysts are preferred due to their high activity, high selectivity to long-chain paraffins, low water–gas-shift activity and high resistance to deactivation. For these catalysts, the support not only provides a large surface area for the cobalt d و...
Chlorobenzene is an aromatic organic compound with the chemical formula C6H5Cl. This colorless and flammable liquid is a common solvent and a widely used intermediate in the manufacture of other chemicals. Benzene chlorination is of considerable commercial importance and has therefore received wide attention. Chlorobenzene is used as a raw material in the production of a new sa و...
Today, due to the depletion of fossil fuel resources and the high importance of energy in developed and developing countries, scientists are looking for environmentally friendly, cheap, safe, and high energy density alternatives. Hydrogen, as a clean and environmentally friendly energy, has a high energy density, which promises to reduce or eliminate fossil fuels that pollute t و...
So far, considerable attention has been paid to the construction of potential photocatalysts to deal with issues related to environmental degradation and energy crises. Among the multitude of photocatalysts, the photocatalyst based on bismuth iron oxide is flourishing as an adsorption center due to its good chemical stability and easy extraction. This article presents the synth و...
Cyclometalated Ir(III) complexes has attracted considerable attention due to their applications in electroluminescence, photocatalysis, phosphorescent molecular probes [1] and their potential for solid-state lighting and display utilizations [2]. The complexes are more promising because of larger d-orbital splitting and strong spin-orbit coupling (SOC) effect [3]. Phosphorescen و...
Iron oxides in nano-scale have exhibited great potential for their applications as catalytic materials, wastewater treatment adsorbents, pigments, flocculants, coatings, gas sensors, ion exchangers, magnetic recording devices, magnetic data storage devices, toners and inks for xerography, magnetic resonance imaging, bioseparation and medicine [1-3]. In this research work, Fe3O4 و...
Nanocomposites generally have wide applications in various fields, including drug delivery and catalytic activity for organic synthesis. In this project, an attempt has been made to synthesize a heterogeneous catalyst based on metal-organic frameworks and magnetic carbon nanotubes. A porous multifunctional palladium-based metal-organic framework (MOF) was developed through comb و...
One of the factors that classify supramolecules is based on dimension, which is specifically the effect on the physicochemical properties of compositions. Two-dimensional compounds are the most well-known materials in this category. Graphene, Boron Nitride, and Transition Metal Dichalcogenides are examples of bi-dimensional materials. Metal carbides and nitrides which are calle و...
The entry of water contaminated with organic dyes cause to raised toxicity levels of water and damage to organisms [1]. During the last years, inorganic perovskite oxides, have attracted significant research interest due to their specific physical and chemical properties [2,3]. Cerium oxide has the eligibility of high dielectric constant, natural plenty, inexpensive, and variab و...
Various pollutants such as dyes following the arrival to ecosystems lead to serious global environmental pollution. Due to global strict regulations, it is obligatory to treat the wastewaters before being discharged into the environment [1]. One of the common, reliable and useful techniques employed for removal of synthetic dyes from industrial effluents is an adsorption proces و...
Metal-organic frameworks (MOFs), which are constructed through inorganic vertices and organic ligands, have attracted the attention of a wide range of research communities due to their diversity in construction and composition. Recently, MOFs have been considered as suitable substrates in the field of electrochemical energy storage (EES), and many MOFs used in electrochemical f و...
Copper nanoparticles as catalyst is gaining immense interest due to their catalytic properties for a variety of organic reactions. However, metal-nanoparticle catalysts are still having limited uses, because of the problem associated with their separation from the products by traditional methods [1,2]. One of the currently adopted strategies is the immobilization of metal nanop و...