Volume 28, Number 2

Synthesis Growth and Characterization of La1.8m0.20cu1-Xmnxo4, (M=Sr,Ca) Oxides

Introduction There is now extensive research work on lamellar copper oxide materials to explain the mechanism of various phenomenons in oxides [1-6]. To study the phenomenon like superconductivity, magnetoresistance & other physical properties the...

Synthesis, Characterisation and Electrochemical Studies of Transition Metal Complexes with Bis-(Macro-Cyclic) Ligands

Introduction The vast family of macrocyclic ligands and their complexes has now been established as an   integral part of coordination chemistry. The preference for macrocylic ligand over unidentate and bidentate ligands has arisen from...

Ir, Raman and Dft Calculations of 5,6-Benzo-2-Pyrone

Introduction Coumarins are interesting heterocycles because of their photochemical and photophysical properties1, leading to numerous industrial and laser dye applications2. It is well known that coumarins increase their dipolar moment when excited. Coumarins comprise...

Synthesis and Characterisation of Bidentate Schiff Base Derived From Furfuraldehyde and its Transition Metal Complexes

Introduction Schiff bases are an important class of ligands in coordination chemistry and their complexing ability containing different donor atoms is widely  reported.1-4 The ligands resulting from 4-amino-3-ethyl-5-mercapto-5-triazole(AMT) with benzaldehyde and 2-hydroxy-1-naphthaldehyde have been...

Microwave Assisted Synthesis of Indole Derivatives, an their Complexation Behaviour and Biological Studies

Introduction The importance of Indole derivatives is quite evident from the number of papers, patents etc. published every year. Indole derivatives possessing antimicrobial1, antifungal2, antibacterial3 and antideprescent4activity have been reported in literature. Above mentioned...

Synthesis of Acetylated Dihydropyrimidine Analogues Under Solvent free Conditions and their Evaluation as Calcium Channel Blockers

Introduction Bigenelli reaction is one of the most useful multicomponent cyclo condensation reaction. It is an acid catalysed cyclocondensation reaction of a β-ketoester with an aldehyde and urea/thiourea to yield 3,4-dihydropyrimidine 2(1H)-ones/thiones in quantitative...

Synthesis of N-Arylisatins Using Nay Heterogeneous Catalyst Under Microwave Irradiations

Introduction Isatin have both biological and medical properties including antifungal, antiviral, anti-HIV, anti-, AIDS, antiprotozoal, anticancer and antileukema.1-7 In recent years, Isatin have been synthesized by different methods but they require tedious work up...

Self-Assembling Characteristics of Cefuroxime Axetile – An Antibiotic Agent

Introduction Amphiphilic compounds (amphiphiles) having polar and nonpolar characteristics are surface active. They are preferentially adsorbed at the air / liquid, liquid / liquid, liquid / solid and solid / solid interfaces, and can...

Ftir, Ft-Raman and Dft Calculations of 5-Nitro-1,3-Benzodioxole

Introduction The benzodioxole ((methylenedioxy)benzene) group is present in a number of endothelin receptor antagonists. Endothelins are 21-amino acid bicyclic peptides originally isolated from the supernatant of cultured porcine endothelial cells1. There have been many...

Crosslinked Isoxazole Functionalized Resin Transition Metal Complexes – Use as Polymeric Catalysts for Epoxidation of Olefins

Introduction Polymer supported catalysts have found important applications in the field of laboratory and industrial oxidation reactions and are of substantial scientific interest1-3. Synthetic polymers have the capacity to mimic the role of enzymes...

Kinetics of Oxidation of Allyl Alcohol By Cr(Vi)

Introduction Quinaldinium chlorochromate (QnCC) has been used as a mild and stable oxidizing agent in synthetic organic chemistry (1). The structure of QnCC is given below, Allyl alcohol (prop-2-en-1-ol) is an organic compound with...

Synthesis, Characterization and Possible Biological Activity of Some Lanthanone(Iii) Complexes

Introduction Condensation reactions between carbonyl compounds and primary amines have played an important role in the synthesis of new macrocyclic ligands.1-6 Usually such reactions are carried out in the presence of suitable metal ion which...

Synthesis and Characterization of Methylmethacrylate Modified Polyesteramide

Introduction In recent years synthesis of the polymers from renewable resources has attracted considerable attention of the research scientists and academia through out the world, because of the continuous hike in price of petroleum...

Hexahydrocyclopenta[C]Pyran-4-Carboxylate Iridoid from Viburnam Cylindricum

Introduction Viburnum cylindricum belong to the family Capriofoliaceae evergreen shrubs with grey bark, leaves oblong lanoceolate or ovate glaucous green above occurs in moist shaded oak forest 1200-2500 mt.(1) From leaves of V. Cylindricum ...

Study of Some Biorelevant Complexes of Transition Metals with Active Imines

Introduction  There is substantial interest in the therapeutic activities of the co-ordination compounds as drugs1-3. In recent years some important Schiff base complexes derived from 2,3-diaminopyridine and  O-vanillin were synthesized and their antibacterial activity...

Diagnostic Agents-Types and Applications: A Discussion

Introduction Although biochemistry has long been recognized as a fundamental basis for each of the separate biological and medical sciences, it has now become more and more a common link between biological research and...

Extraction of Polyphenol, Flavonoid from Emblica Officinalis, Citrus Limon, Cucumis Sativus and Evaluation of their Antioxidant Activity

Introduction The biological antioxidants are compounds that protects biological systems against the potentially harmful effects of processes or reactions that causes excessive oxidation. Nowadays the oxidative stress is one of the serious problems of...

Isoxazole Functionalized Crosslinked Resin Complexes of Transition Metals as Polymeric Catalysts for Hydrogen Peroxide Decomposition

Introduction Polymer bound metal  catalysts have found many applications  in modern synthetic organic chemistry.   In functionalized cross-linked polymers with transition metal complexes acting as catalysts, the polymer matrices can play a role of mere...

Determination of Chloropyrifos in Fruits and Vegetables by Using Analytcal Techniques

Introduction Chloropyrifos is a crystalline organophosphate insecticide.The IUPAC name of chloropyrifos is O, O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate and  with molecular formula C9H11Cl3NO3PS. Chlorpyrifos is moderately toxic and chronic exposure has been linked to neurological effects,...

Synthesis of (2-Butyl-4-Substitutedthiamidothiocarbamido- 1- {[2-(1h-Tetrazol 5-Yl) Biphenyl- 4-Yl] Methyl}-1h- Imidazol-5-Yl) Methanol

Synthesis, Characterization and Antimicrobial Studies of Copper (Ii) Complexes of Semicarbazone and Thiosemicarbazone of M- Hydroxy Benzaldehyde and P-Hydroxy Benzaldehyde

Introduction The synthesis  of  transition metal complexes with thiosemicarbazone ligands have been receiving considerable attention due to the pharmacological properties of both ligands and complexes1-3.The Chemistry of Thiosemicarbazone has received considerable attention because of...

Synthesis, Structure and Luminescent Properties of Ti(Iii),V(Iii) Transition Metal Polymeric Macrocyclic Complexes Derived from Phenanthroline and Biphenyl Groups

Introduction Recently, polymeric metal complexes have attracted most researchers interests, (1) because they not only exhibit the properties of polymers, but also possess properties of inorganic and organic small molecule metal complexes, such as...

Removal of Toxic Azo Dyes from Wastewater Using Bottom Ash – Equilibrium Isothermal Modeling

Introduction Increase in the industrialization has increased the pollution of water bodies. Azo dyes are the class of dye characterized by the presence of highly stable -N=N- group and are one of the widely...

Analytical Application of P-Chlorophenylazo-Bis-Acetoxime (P-Cpaba) in the Spectrophotometric Determination of Nickel (Ii)

Introduction Arylazo-bis-acetoximes are well established analytical reagents for both complexometric and spectrophotometric determination of transition elements. Bamberger[1-5] proved that they possess the same skeleton as hydroxytriazenes and thus their preparative methods as reported by Mai[6-7] involve coupling...

Antimicrobial Screening of Co(Ii), Ni(Ii) and Cu(Ii) Complexes With Nitrogen and Oxygen Containing Schiff Base

Introduction Schiff Base ligands and their application have aroused considerable interest mainly due to preparative accessibility, diverse reactivity and structural variability. Metal complexes of Schiff base have played a vital role in the development...

Vibrational Spectroscopic Investigations of 4-Nitropyrocatechol

Introduction Catechol, also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound with the molecular formula C6H4(OH)2. It is the ortho isomer of the three isomeric benzenediols. This colorless compound occurs naturally in trace...

Amino Acid Composion and Sugar Analysis of Mcj Lectin

Introduction Lectins are proteins which have specific binding affinity for carbohydrate moiety and can thus interact with saccharides.1 These proteins can agglutinate cells and combine with glycocomponents of the cell surface causing a number...

The Studies on Underground Water Quality of Some Villages of Chalisgaon Blocks Along the North Side of Girna Canal (Right) of Jalgaon, Maharashtra State

Synthesis, Characterization, Spectral Studies, Biocidal Activities of Fe (Ii) And Cu (Ii) Complexes of Azo Dye Ligand Derived from Sulfamethoxazole and Substituted P-Cresol

Kinetics and Mechanism of Non-Isothermal Decomposition of Some Cross-Linked Metal-Alginate Complexes Especially Trivalent Metal -Alginate Complexes

Introduction Alginic acid is a polysaccharide consisting of a binary heteropolymer structure of 1,4 linked β-D-mannuronic and α-L-guluronic acid units in a linear block copolymer structure.1-3 It is well-known that alginate as anionic polyelectrolyte...

Synthetic Approaches and Electronic Spectra of Some New Butamethine Asycyanine Colorants

Introduction Due to multipurpose applications of cyanine, polymethinecyanine and asycyanine colorants they are being used in cosmoelectronic photography , laser technology, solar energy conversion systems1-3, absorptivity and photo sensitivity4-17. Hence they became more vital...

Kinetics and Mechanism of Oxidation of Glutamic Acid with Bi(V) Phosphato Complex

Aims and Background Our aim to undertake study of the reaction of Glutamic acid with Bi(V) was basically to determining the pattern of reactivity of Glutamic acid towards Bi(V) in Phosphoric acid medium. Material...

Qualitative and Quantitative Analysis of Metal Complexes of Schiff Bases Containing Medicinally Important Amino Compounds

Introduction Due to their good complexing properties, biological activity and analytical application, semi-/thiosemi-/isothiosemicarbazides and their Schiff bases of different denticity, as well as their metal complexes, have been subject of many studies. Apparently, the...

Development and Validation of Rp- Hplc Method for Simultaneous Determination of Niacin (Extended Release) and Lovastatin in Oral Solid Dosage form

Spectrophotometric Determination of Manganese by Biologically Active 2-Hydroxy-4-Methoxy Acetophenone Oxime

Introduction A number of reagents are known for spectrophotometric and complexometric determination of Mn(II) and other transition metal ions1-5. The present communication deals with the spectrophotometric determination of Mn(II) with HMAO & compare their...

A Comparative Study on the Phytoextraction of five Common Plants Against Chromium Toxicity

Introduction In recent decades there has been increasing concern with heavy metal contamination, because of their toxicity to microorganisms, plants and animals. Unlike most organic contaminants are non-biodegradable and can accumulate in living tissues...

Study of Co(Aaopd) and Cu(Aaopd) Schiff-Base Catalysts Effect in Oxidation Oximes and Carboxylic Acids Derivatives

Preparation, Identification of two New Cd(Ii) Complexes Including 4-(1h-Tetrazol-5-Yloxy) – Phenylamine Cadmium(Ii) Chloride and 2-(1h-Tetrazol) – Pyridine Cadmium(Ii) Chloride

Introduction Schiff bases play an important role in inorganic chemistry as they easily form stable complexes with most transition metal ions. The development of the field of bioinorganic chemistry has increased the interest in...

Theoretical Study of Hydrogen Adsorption Energy on Nano Metal Crystal

Temperature Dependence of thermodynamic Properties of Zn-5al and Zn-55al Alloys with Magnesium

Computational Procedure for Determining Physicochemical Properties of Doxorubicin-Tpgs and Daunorubicin-Tpgs as Anticancer Agents

Optimization Effective Parameters on Gamma Radiation Polymerization Copolymer Based on Collagen

Introduction Graft copolymerization of hydrophilic vinyl monomers is a well-known technique employed by polymer chemists for significantly modifying the chemical and physical properties of the synthetic or natural starting materials with minimum degradation of...

Nmr Studies of Bh3-Attaching in the Zigzag and Armchair Bn Nanotubes: A Dft Study

Introduction Boron nitride compound, with chemical formula BN, is made up of boron and nitrogen atoms 1, 2. This compound is not found in nature and can only be constructed from boric acid or...

Synthesis, Characterization and Theoretical Study of the New Aluminate Ionic Liquid: Tetrahepthylammonium-Bromotrichloroaluminate [(C7h15)4n]+[Alcl3br]-

Introduction At the end of twentieth century, scientists found that unlike traditional view about the melting points of salts, there is a class of salts or salt mixtures those have melting points below 115◦C,...

The Microemulsion of Beakea Frustecence Stabilized by Sds And Span 80 and its Antibacterial Potential

Introduction Beakea Frustecence or commonly known as Cucur atap  is a common edible herb species of family Mrytaceae  that can be found everywhere within South East Asia. Besides playing an important role in the...

Spectroscopic and Chemometric Analysis of Illegally Manufactured Formulations of Selected Medicines

Introduction According to the World Health Organization (WHO) the problem of counterfeit medicines was first addressed at the international level in 1985 at the Conference of Experts on the Rational Use of Drugs in...

Dis-Azo Dyes Derived From 2-Methoxy-5-Nitroaniline and 3-Chloroaniline and Their Application on olymer Fibres

Synthesis and Characterization of Mercury(Ii) Complexes Containing Mixed Ligands of Mono or Diphosphines and Saccharinate

Introduction Saccharin{o-sulfobenzimide; 1,2-benzothiazol-3(2H)-one-1,1-dioxide; Hsac}, most widely used as an artificial sweetening agent Interaction of saccharin. with different biologically relevant cations attracted great interest due to the suspected carcinogenicity of this compound [1-3] which was...

Study on Effect of Addition of Nicotine on Nanofullerene Structure C60 As A Medicine Nano Carrier

Synthesis of New Poly(Amide-Imide)S Derivatives Based on Amino Acid Compounds

Introduction Polymers consist of monomeric units that process has done in different compounds and with different methods. Chemical and physical parameters can lead to production of a polymer with unexpected molecular weight (less than...

The One-Pot Three Components of Iodone, Schiff Base and Epoxide for Synthesis of Iodohydrins

Introduction With the increasing application of rare earth metals in a variety of fields, rare earth ions continually intrude into general environment and further into the bodies of plants, animals and human beings. It...

Utilisation of Nanosize Powder (Montmorillonite) for Compounding Lightweight Polymer Products

Introduction In recent years, clays containing polymer nanostructured materials have attracted great interest from researchers, both in industry and in academia, because they often have better properties than pure polymers or conventional composites [1]....

The Si-doped Zigzag (6,0) AlN Nanotube: A Computational NMR Study

Introduction Silicon elements are in IV groups in periodic table that are similar to properties of Carbon and Germanium elements. So, these compounds can be used instead of Carbon and Germanium elements [1]. But...

The Distribution of Selected Metals in the Surface Sediment of Langkawi Coast, Malaysia

Introduction The coastal zone is an important area as it affects the global environments through the interaction between land and ocean (Kremer et al., 2005). Metal concentrations in sediments usually exceed those of the...

Modified Mesoporous Cerium(III) Silicate: Synthesis, Characterization and Adsorption Studies of Heavy Metal Ions

Introduction Indastrial activites such as electroplating, mining, metal processing, dyeing and textile produce wastewater contaminated with heavy metals1. The discharge of these untreated wastewater into natural water dodies cause serious environmental problems because metals...

The Influence of H2O-attaching on the NMR Parameters In the Zigzag and Armchair AlN Nanotubes: A DFT study

Synthesis of Novel Aryl Quinoxaline Derivatives by New Catalytic Methods

Introduction  Hetero cycles compounds are used in many various industries. However most of hetero cycles compounds aren’t extracted from nature source, but are synthesized. Almost all alkaloids that are used as drugs are formed...

Synthesis and Investigation of a Novel pH- and Salt-Responsive Superabsorbent Hydrogel Based on Pectin

Introduction Highly swelling polymers, i.e. superabsorbent hydrogels, are hydrophilic, three dimensional networks that can absorb water in the amount from 10% up to thousands of times their dry weight. They are widely used in...

Density Functional Study of Solvent and Substitute Effects on the Tautomerism of 3-Hydroxy-1,2,4-Oxadiazole Derivatives

Introduction Heterocyclic moieties such as 1,2,4-Oxadiazole rings can be found in a large number of compounds which display biological activity. 1,2,4-Oxadiazoles have been prepared by cycloadditions of nitrile oxides to amidoximes, treatment of acylated...

In Based on Amino Acid Compounds Synthesis of New Poly(Ester-Imide)s and Poly(Imide-Urethane)s Derivatives

Introduction Polymers are useful compounds which are utilized in various industries.  Generally, they are composed of monomeric units joined together by polymerization.  Polyamides, polyimides, polyesters, and polyurethanes are polymer. Polyimide is known as one...

Synthesis of Silver Nanoparticles and their Antiproliferation against Human Lung Cancer Cells In vitro

Introduction Metal nanoparticles have wide range of applications in various areas of physics, chemistry, material science, and biological science. Intrinsic chemical optical, electronic, sensing, and catalytic properties of metal nanoparticles largely depend on their...

A New Extractive Spectrophotometric Method for the Determination of Gatifloxacin and Cefotaxime Sodium in Pure and Pharmaceutical Dosage Forms

Introduction Gatifloxacin chemically (±)-1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid    [1], is a fourth-generation synthetic broad-spectrum 8-methoxy fluoroquinolone antibacterial drug derivative  [1]. Gatifloxacin offers several advantages over previous-generation antibiotics. It has enhanced in vitro activity against clinically important pathogens...

Synthesis, NMR, Vibrational and Mass Spectroscopy with DFT/HF Studies of 4-(4/-Bromophenyl) -2- Mercaptothiazole Structure

Introduction The chemistry of Heterocycle compounds including Thiazoles has spread because of their various biological and pharmaceutical activities. Since these compounds have shown various pharmaceutical, antibacterial and antiviral activities, they have much therapeutic value....

Simple and Efficient One Step Synthesis of Functionalized Flavanones and Chalcones

Introduction Chalcones and flavanones, originally isolated from natural sources are an outstanding class of naturally occurring bioactive compounds with a 1,3-diarylpropane skeleton belonging to the flavonoid family. Chalcones (1,3-diphenyl-2-propene-1-ones) either natural or synthetic have...