Volume 28, Number 3

Spectral, Magnetic and Antimicrobial Studies of Co(Ii), Ni(Ii) and Cu(Ii) Complexes with Bidentate Schiff

Introduction Prevention of disease by the development of active treatments that control illness with minimum side effect to the human being has become the vital goal of modern health care. The use of antibiotics...

A Review: Synthesis, Characterization and Cell Performance of Cu2O Based Material for Solar Cells

Introduction The need for sustainable power generation has encouraged research into a variety of photovoltaic materials and structures, with a greater emphasis being placed on a balance between performance and cost. The stability of...

A Facile Steroselective Synthesis of Z-Aldoximes from Benzaldehyde and Hydroxlaminehydrochloride in Dry Media

Molecular Structure, Experimental and Theoretical Spectroscopic Studies and Quantum Chemical Calculation of Phenoxyacetic Acid and Its P-Chloro Derivative

Introduction Aryloxyacetic acid are interesting to study by various chemical and physical methods. Phenoxyacetic acid is one of the best known aryloxyacetic acid, which is useful in the treatment of insulin resistance and hyperglycemia...

Studies in a Synthesis and Antimircobial Activities of 2-(3,4,5-Trimethoxyphenyl)Thiocarbamide/Substituted thiocarbamid

Introduction Recently in this laboratory the synthetic applications of cynoguanidine and 1,3-diformamidothiocarbamide had been briefly explored1. As evident from structure of 2-(3,4,5-trimethoxyphenyl)ethamine processes amino and methoxy  reactive sides for various reactions. As a wider...

Stability Constants of Ternery Complexes of Transition Metal(Ii) Ions with Aspartic Acid and Glutamic Acid as Primary Ligands and Ampicillin and Cephalexin as Secondary Ligands

Introduction Recently, there has been considerable interest in the study of binary, ternary and quaternary complexes by pH-metric method1-3. The ligand levodopa (LDP) is well known  for its use in neurotransmission process4 and the...

Chelating Efficacy and Corrosion Inhibition Capacity of Schiff Base Derived from 3-Formylindole

Introduction Schiff bases, are organic molecules possessing azomethine linkage (C=N), have innumerable advantages, right from pharmaceutical applications to the corrosion inhibitions, in the various fields of science. Metal complexes of Schiff bases play vital...

Dilantin Sodium-Surfactant Interaction

Introduction The micellization of surfactants (amphiphiles) after a critical concentration (called the critical micellar concentration, CMC) is an important solution property which needs evaluation to know the existence of micelles in solutions as well...

Isolation and Characterisation of Oxidation Product of Glycollic Acid by Chromic Acid in Tetrahydrofurane and Tertiary Butyl Alcohol Medium

Introduction The kinetics of oxidation of glycollic acid has been studied in detail by chromic acid oxidation methods1-3. The oxidation of glycollic acid to glyoxyllic acid using a microbial cell transformant as catalyst has...

Synthesis and Characterization of Certain Biodegradable Thermotropic Liquid Crystalline Random Copolyesters

Introduction  In recent years, the amount of plastic wastes has obviously increased all over the world, which brings a serious environmental problem and has drawn more and more concern from the public and scientists....

Kinetics of the Epoxidation of Crotonic Acid by Aqueous Hydrogen Peroxide Catalysed by Sodium Orthovanadatae

Aims And Background Since epoxides have found use as reagents, intermediate, end products, epoxidation of olefins and other organic substrates by inorganic oxidants catalysed by trasitional derivative has remained a primary goal in recent...

Synthesis of 3-Bromo Flavones from 2-Hydroxy-3, 5-Dibromo-4’nitro Dibenzoyl Methane

Introduction:- Flavones constitute large segment of natural products.Synthesis of flavones has attracted considerable attention due to their significant biocidal1-3, pharmaceutical 4-7anti- cancer8 and anti-inflammatory 9-10effects.Dibenzoyl methane reacts in DMF medium or with bromine in...

Synergistic Effect of Tham- Molybdate And Zn2+ on the Inhibition of Corrosion of Mild Steel in Aqueous Environment

Introduction Molybdate anion has been widely used as corrosion inhibitor since, 1939, because of its efficacy towards both ferrous and non ferrous metal and its very low order of toxicity. Molybdate has been used...

Synthesis and Characterization of Some New Imidazo [2,1-A] Pyrazolo [3,4-D] Thiazoles as Potentials Fungicide

Introduction Many imidazoles have been reported to exhibit antibacterials1, herbicidal2,3,  insecticidal4, fungicidal activity5-7. The importance of some thiazoles prompted us to synthesized some novel imidazo [2,1-a] pyrazolo [3,4-d] thiazoles derivatives with a view to...

Reactions of 2-Thioxoper Hydro-1, 3-Thiazin-4 Ones with Oxovanadium (Iv), Chromium (Iii), Manganese (Ii), Iron (Ii) And Iron (Iii)

Introduction It is recognished that the properties of the metal complexes of phasphorus doner ligands1,3 are markedly affected by the electronic and steric effects of the substituents on Phasphorus. However, investigations on the electronic...

The Influence of Macro Thiourea Derivative on the Corrosion of Mild Steel In Marine Environment

Preparation and Biological Evaluation of Novel Pyrimidines from Novel Chalcones

Introduction Chalcones and pyrimidines were reported to possess various biological activities. In the present communication we report the synthesis of novel chalcones1-11 following claisen-schmidt condensation using 3-acetylpyridine with  either aromatic or heteroaromatic aldehydes (2a-f)...

Kinetic and Mechanistic Studies in the Oxidation of Ethanol by P-Methoxy-N-Bromobenzamide

Introduction Reports are available in the literature on the mechanism of oxidation by chloramine-T1, chloramine-B2, N-bromosuccinimide3, N-bromobenzamide4-5 p-methyl6 and other halomides, is available but very little is known about the modes of the redox reaction...

Reactions of 2-Thioxoper Hydro-1, 3-Thiazin-4 Ones with Cyclopentadienyl – Ruthenium Ii, Dicarbonyldichloro Ruthenium Ii Complexes and Tetra Carbonyldi-µ- Halodirhodium

Introduction It is recognished that the properties of the metal complexes of phasphorus doner ligands1,3 are markedly affected by the electronic and steric effects of the substituents on Phasphorus. However, investigations on the electronic...

Synthesis, Spectral, Cyclic Voltammetric and Antimicrobial Studies of Iron (Iii) Complexes With Tetradentate Bis-Benzimidazole Based Diamide Ligand

Mechanics of Corrosion of Trip-Assisted Steels in Different Nacl Solutions

Introduction From the history of steel development for vehicle, we can see that there were many kinds steels, which had been developed and used. From the 1950’s to the 1960’s, the rimmed steel was...

Kinetics of Oxidation of D-Galactose by Pyridinium Chlorochromate

Introduction In recent years a number of  studies on oxidation reactions  involving Cr(VI) based oxidants and organic compounds have been made1,2, The oxidation reaction of  carbohydrates is complex because of their multifunctional nature. Earlier3,4...

Synthesis, Cure and Thermal Properties of Bismaleimide Resin and Allylnadic-Imide

Introduction Addition polyimide are low molecular weight, imide prepolymer send- capped with reactive groups such as acetylenic or olefinic.The olefinic end group in addition polyimides may be cycloaliphatic (i.e. norborene) or aliphatic (i.e. bismaleimides)...

Synthesis, Characterization and Antibacterial Studies on Copper(Ii) Binuclear Complexes with Substituted Piperidin-4-Ones

Introduction There has been considerable interest in the coordination chemistry of 4- or 5-coordinate copper(II) compounds that mimic the aspects of the properties of copper in protein[1]. The binuclear copper active centers are important...

Effect of Added Dimethyl Sulphoxide on the Solvolysis of Cinnamoyl Chloride in Aqueous Acetone and Acetonitrile

Introduction The solvolytic reactions on carboxylic acid derivatives can be basically classified from mechanistic point of view into SN1 and SN2. Inaddition to these two, the possibility of carbonyl addition-elimination mechanism in solvents of...

Synthesis and Spectroscopic Studies of Co(Ii), Ni(Ii) and Cu(Ii) Complexes of Bidentate Schiff Base Having N and Sulphur Containing Donor Site

Introduction Coordination compounds play a vital role in several fields Schiff base plays a central role in the field of coordination chemistry due to their biocidal activities including anticancer, antifungal, herbicidal and antibacterial. The...

Ring Opening Epoxides Into Halohydrins with Elemental Iodine and Bromine in the Presence Of Nano Catalyst Zro2

Introduction There is a continued interest in the regioselective ring opening of oxiranes to the corresponding vicinal halohydrins. Although a variety of new and mild procedures to effect this transformation have been reported, most...

Determination of Trace Amounts of Bismuth In Pharmaceutical and Water by Adsorptive Cathodic Stripping Voltammetry in the Presence of Xylenol Orange

Introduction Bismuth is environmentally important,1 and is of biological interest due to their possible binding to thiolate ligands to form metal-thiolate clusters.2 Many electroanalytical stripping procedures have been proposed for the determination of bismuth3,4...

Dynamic 1h Nmr Studies Along With Theoretical Investigation Around Carbon-Carbon Double Bond In Stable Phosphorus Ylide Containing A 2-Thiazolin-2-Thiol

Introduction The synthesis of phosphorus ylides is important in organic chemistry 1-6 because they make stable carbanion. These reactions have gained more use in synthetic organic chemistry 7-11 because of their application in the...

The Influence of Various Solvents on Energetic Property and Stability in C5h4 Divalent Five-Membered Ring: A Dft Studies

Introduction Carbenes are compounds found in singlet or triplet forms, hence referred to as amphiprotic compounds 1. Such compounds have been the subject of many theoretical and experimental studies and identified as intermediate products...

Comparative Study of Adsorption Isotherms two Nonsteroidal Anti-Inflammatory Drugs(Nsaids), Acetaminophen and Diclofenac on Carbon Nanotube

Introduction Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. Nanotubes have been constructed with length-to-diameter ratio of up to 132,000,000:1,[1] significantly larger than for any other material. These cylindrical carbon molecules...

Stability Constants of Ternery Complexes of Transition Metal(Ii) Ions with Aspartic Acid and Glutamic Acid as Primary Ligands and Levodopa and Methyldopa as Secondary Ligands

Introduction Recently, there has been considerable interest in the study of binary, ternary and quaternary complexes by pH-metric method1-3. The ligand levodopa (LDP) is well known  for its use in neurotransmission process4 and the...

Determination of Ultra Trace Amounts of Silver by Gfaas After Dllme Method In Water, Plasma and Urine

Introduction                                    In the recent years, pollution of the environment by heavy metals has received considerable attention. These elements accumulate in living organisms and are of high toxic potential 1. For determination of the trace...

Evaluation of Adsorption Isotherms of Freundlich, Temkin and Langmuir of Loratadine Drug on Multi-Walled Carbon Nanotube

Introduction Carbon nanotubes (CNT) discovery by Iijima in 1991 [1]. Carbon nanotubes (CNTs) are hollow cylinders of graphite carbon atoms. These tubes are on the nanoscale (10-9 m), which is so small that 10,000...

Synthesis 4-(4/-Methylphenyl)-2-Mercaptothiazole Structure With Nmr, Vibrational, Mass Spectroscopy And Dft Studies

Adsorption Isotherm Study of Ketotifen As A Drug on Multi-Walled Carbon Nanotube

Introduction Carbon nanotubes (CNT) discovery by Iijima in 1991 [1]. Carbon nanotubes (CNTs) are hollow cylinders of graphite carbon atoms. These tubes are on the nanoscale (10-9 m), which is so small that 10,000...

Low-Temperature Gas-Phase Metallization of Dielectrics

Introduction Metallization of dielectrics a new physico-chemical, mechanical and decorative properties is give to them [1-7]. Depending on the type of dielectric material and on the aims to be coated, have been proposed various...

Theoretical Study of Thermodynamic and Quantum Energy on Carbon Nanotubes Armchair (5,5) and its Derivatives

Introduction Carbon nano-tubes, hollow cylinders of graphite sheets that they can be due to their small size (nanometer diameter and micron length) to consider individual molecules that have a transitional period at the end...

Three Component Reaction for the Synthesis of Imidazo[2,1-B]Thiazole Derivatives

Understanding The Mechanism Of Stable Phosphorus Ylides Derived From Imidazole, 2-Methylimidazole Or 4-Methylimidazole: A Kinetic Study

Introduction Organophosphorus compounds have emerged as important reagents and intermediates in organic synthesis [1].An important group of this class is phosphorus ylides, which have been used in many reactions and synthesis of organic compounds...

Vanadatesulfuric Acid-Catalyzed Novel And Eco-Benign One-Pot Synthesis Of Polyhydroquinoline Derivatives Under Solvent-Free Conditions

Introduction In pharmaceutical view, heterocycles are of superior importance in the discovery and design of new compounds1. Recently, an increasing attention has been focused toward the multicomponent synthesis of 1,4-dihydropyridyl compounds due to their...

Bleach Washing Combined with Pumice Stone for the Modification of Denim Garments

Nmr, Aromaticity and Energetic Property in C6h4o2m (M=C, S, O And N) Dicarbaldehyde Derivatives: A Computational Study

Introduction Thiophene-2,5-dicarbaldehyde, pyrrole-2,5-dicarbaldehyde, furan-2,5-dicarbaldehyde, cyclopenta-3,5-diene-1,3-dicarbaldehyde are compounds from dicarbaldehydes family that previously have been synthesized experimentally 1. Due to their structural characteristics and particular chemical properties, these compounds have found wide applications in different...

Removal of Lead from Aqueous Solutions Using Fagus Orientalis Lipsky: Box-Behnken Experimental Design

Introduction Advances in water and wastewater treatment technology need spur for the development of technologies that may be more effective and less costly. Nowadays, the contamination of water by toxic heavy metals through the...

Silica Supported Zinc (Ii) Chloride (Sio2-Zncl2) As An Efficient Catalyst For The Eco-Friendly Synthesis Of 2,3-Dihydroquinazolin-4(1h)-Ones

Ammonium Chloride: An Effective Catalyst for the One-Pot Synthesis of 2,4,5-Trisubstituted Imidazoles

Introduction Multicomponent reactions (MCRs) have drawn great interest enjoying an outstanding status in modern organic synthesis and medicinal chemistry because they are one-pot processes bringing together three or more components and show high atom...

Antioxidant Activity of Date Seed Oils of Fifteen Varieties From Iran

Adsorption Isotherms Of Diethyl And Dimethyl Malonate Esters On Single –Walled Carbon Nanotubes

Introduction Before the discovery of carbon nanotube (CNT) which had new shape of carbon-carbon bond [1], two types of carbon-carbon bonds was known in nature like graphite and diamond. Graphite consists of layers of...

Keto- Enol Tautomerism Of 2-Hydroxy Naphthylideneaniline With Lanthanide Shift Reagent Pr(Fod)3 In Different Solvents

Introduction Aldamines derived from the aromatic aldehydes having a hydroxyl group in the ortho position to aldehyde group are of interest mainly due to existence of either O-H—N or O—H-N type of intramolecular hydrogen...

Comparative Surface Study of Corrosion Behavior of Carbon Steel with Nickel, Copper and 70/30 Ni-Cu Alloy in Seawater-Part 1

Introduction Seawater is one of the most abundant naturally occurring electrolytes, covering about 70% of the earth’s surface. Seawater systems are used by many industries such as shipping, offshore oil and gas production, power...

Spectral and Theoretical Studies of the Stability Constant of Charge Transfer Complexes of a Number of Schiff Bases with Eu(fod)3 in Different Solvents

Introduction Lanthanide shift reagent applications are long known to be confined for NMR studies (1,2). Later they have been used to study the UV spectra of Schiff bases. Thus addition of Eu(fod)3 to benzylidene...

A Mechanistic Investigation of Stable Phosphonate Ester Derived from 3, 4 dichloro Aniline: A Kinetics Study and Theoretical Calculations

Introduction:  In organicsynthesis, phosphonates are used in the Horner-Wadsworth-Emmons reaction. Aminophosphonates can also be used as a sole nitrogen source by some bacteria. Phosphonates have a very strong interaction with surfaces, which results in...

Properties in Tension of Semi Continuous Cast and Extruded Zn-22Al-2Cu alloy

Introduction In recent years, a number of modifications of Zn-Al based alloys, between 20 and 30 weight % Al, they have been developed and studied with improvements in the properties. For example, the addition...

Solvent-free Dehydration of Alcohols using LiCl-acidic Alumina

introduction During recent years,­­­­­­ the microwave irradiation in conjunction with the solid supported catalysts was used to perform a wide range of organic reactions.1,2 The most advantages for these solvent-free microwave-assisted reactions are the...

UV-curable Encapsulants for LED

Introduction Incandescent, fluorescent and neon lamps have been used for decades in a wide variety of applications. The LED lamps has been gradually replacing these earlier devices in many applications due to their superiorities...

Betulinic Acid Glycosides: A Review

Introduction Betulinic acid, 3β-hydroxy-lup-20(29)-ene-28-oic acid (1) is a naturally occurring pentacyclic lupane-type triterpene.  It shows a broad range of biological and medicinal properties such as inhibition of human immunodeficiency virus (HIV), anti-bacterial, anti-malarial, anti-inflammatory,...

The Effect of NaHCO3 as Catalyst via Electrolysis

Introduction  Nowadays, energy has always been the primary focus of mankind and it continues to drive the economy through a series of technological advances. The energy-based industrial and scientific revolution, places a demand on...

Energetic Property and Aromaticity in various Divalent Carbenes Derivatives: DFT and NMR Studies

A Prediction of the Elastic Behavior of Sodalite Zeolite: Molecular Dynamics Simulation

Introduction Zeolite are nanoporous crystalline aluminosilicates frequently used in important chemical industry applications, such as pollution control, radioactive waste disposal,  gas purification, and petroleum production [1]. Their properties are determined by their nanoporous structures,...

Optimal Decolorization Efficiency of Indigo Carmine by TiO2/UV Photocatalytic Process Coupled with Response Surface Methodology

Introduction Textile manufacturing is one of the largest producers of wastewaters. It is also a chemically intensive industry and therefore textile wastewaters contain processing bath residues from preparation, dyeing, finishing, slashing and other operations....

Design and Synthesis of Three Naphtol Derivatives using the Three Component System

Introduction Several methods have been reported for synthesis of aromatic-condensed derivatives; for example, the synthesis of naphtyl ketone by the reaction of o-alkynylbenzaldehydes with alkynes using AuCl3 as catalyst1. Other reports indicate the tandem...