Volume 29, Number 3

Synthesis and Characterization of 2-imino-3–(2-Hydroxylphenyl)-1-Thiazolidin-4-one Substituted Ammine Complexes of Cr(III), Co(III), Ni(II) and Cu(II)

INTRODUCTION Many metal complexes of biologically important ligands are more effective than their free ligands1. Mixed ligand complexes have a pivotal role in biological chemistry2 as these create specific structures3 and have been implicated...

Environmental Effect / Impact Assessment of Industrial Effulent on Ground Water

INTRODUCTION Water, a natural resource, is one of the most common and unusual substance. The effect of water on almost everything in our environment is far more consequential than might be imagined. Water is...

Analysis of Effects Resulted from Changing the Buffer Layer Material on Optimization of Cu (In 1-x,Gax) Se2 Thin Filmsolar cell(CIGS) and Simulation of Cell Structure

INTRODUCTION CIGS1 solar cells based on semiconductor offers many advantages such as flexibility, high efficiency, the ability to change the width of the CIGS strip with Ga composition from 1.04 to 1.68eV to match...

Low Level Laser effect on the Action of Lymph Nodule and Cervical in Inoculated Mice with Carcinoma in Memory Gland

Introduction The laser was recently become extremely important both in medicine and another medical applications, soft laser have been used to achieve very precise therapeutic effects for bio stimulation cells analgesic effects and anti-inflammatory...

Study of Synthesis and Biological Importance of Thiozole (Hetrocyclic Compound)

INTRODUCTION Heterocyclic systems containing thiazole show wide range of activities. The versatility of these nuclei is demonstrated by the fact that some of these compounds exhibit antifungal, antibacterial, antihistaminic, antihyroid and antitubercular activities. The...

New D-glucopyranosyl -6-α-4’- methoxy Rhamnopyranoside from Cyathula tomentosa

Introduction  Cyathula tomentosa (Kurru) belongs to family Amaranthaceae, is a perennial under shrub occurs throughout Garhwal Himalayas up to 600-2000 meter altitude, Cyathula tomentosa has been used in snake bite and has emetic properties...

Method Development and Validation for the Simultaneous Estimation of Cinitapride and Pantoprazole in Solid Dosage Forms By RP-HPLC

INTRODUCTION Cinitapride (Figure1A) is a substituted benzamide that acts as a gastro prokinetic and antiulcer agent. It is chemically 4-amino-N-[1-(3-cyclohexen-1-ylmethyl)-4-piperidinyl]-2-ethoxy-5-nitrobenzamide1. Pantoprazole (Figure 1B) is a proton pump inhibitor drug used for short-term treatment of...

Influence of Electronic Factors on “Solvent-Free and Catalyst-Free Biginelli Reaction

Introduction:- The multicomponent condensation reaction has attracted a huge interest from the researchers in the field of organic chemistry for constructing complicated heterocyclic scaffolds1-3. The Biginelli reaction is one of the most popular multicomponent...

Synthetic and Structural Studies of Some Bivalent Transition Metal Complexes with Oxygen and Nitrogen Containing Schiff Base

INTRODUCTION Complexes of semicarbazone ligands exhibit remarkable attention, primarily due to bioinorganic relevance. Semicarbazone complexes exhibit wide medicinal applications such as antimalarial, antiviral, antibacterial, and   antitumor1-10. In order to consider above features of semicarbazone...

Comprative Infrared Study of cerium and thorium soaps

Intorduction In spite of much work reported on alkali, alkaline earth and transition metal soaps, only few references [1-15] are available on tare earth metal soaps which have found wide application in industry. The...

Synthesis of Potassium 2,4 and 2,6-bis[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoate

Introductions Chemical weed control is a commonly used and reliable method to control weeds in direct seeded rice (DSR) and planted rice fields. Appropriate use of both pre-emergence and post emergence herbicides has been...

Action of Higher Diazoalkanes on 4-n Pentyl Benzoyl chloride

INTRODUCTION The action of diazoalkanes on carboxylic acid chlorides or anhydrides produces diazoketones1, 8, 12. Several workers2,4,10,13have studied the action of only lower diazoalkanes on it. Quite a large number of α-diazoketones,as the survey...

Synthesis, Characterization and Biocidal Activity of some Schiff base and its Metal Complexes of Co(II), Cu(II) and Ni(II)

INTRODUCTION Wide varieties of geometries and reactivity of semicarbozene metal complexes have been reported1-7 to possess several biocidal activities. The chemical and biocidal activity of semicarbozone have been subject of investigation in recent years....

Fractal Aggregation of Copper Particles using Electroless Cell

Introduction: In many fractal growth experiments structures are more  complicated. The most common experiments are Electro-deposition with point electrode at center and circular electrode around it. When suitable electrolytic solution is poured in and...

Complexation of Ciprofloxacin with Mn (Ii) Ion –A Potentiometric Study

INTRODUCTION A Co-ordination compound (complex) is formed between a metal ion and molecules or ions called ligand. Transition metal complexes are cationic, anionic or neutral species in which transition metal is coordinated by ligands....

Accumulation of Fluoride in Sikar Aquifer and their Removal by Khimp Powder

Introduction: Chemically, the fluorine is the most electronegative element and it is always present in a combined state as fluoride because of its high chemical reactivity. The fluoride is a great calcium-seeking element and...

Synthesis, Structural, Spectroscopic and Antibacterial Studies of Schiff Base Ligands and Their Metal Complexes Containing Nitrogen and Sulphur Donor Atom

INTRODUCTION Schiff bases1-9 are useful chelators because of their ease of preparation, structural   varieties, varied denticities and subtle steric and electronic control on their framework. Recently a great deal of interest have developed in...

Comparative Studies of Cerium and Thorium Soap Solution

INTRODUCTION Metal soaps are used as stabilizers for nylon threads, PVC molding composition, polyester, as an adhesive for steel cord and rubber in radial tiers1-4 The structure and properties 5-7of these soaps play And...

Studies on Leaching of Heavy Metals from E – waste

Introduction The electronic revolution is certainly a boon to mankind but at the same time, the use and throw culture and the greed of the human race to adopt new technologies have resulted in...

Phytochemical Studies from the Roots of Girardinia heterophylla

Introduction Girardinia heterophylla, commonly known as ‘DansKandali’, is abundantly found in the Himalayas. It can be seen growing extensively as an underutilized biomass in the forest areas situated in outskirts of the villages.Swollen base...

Structural and Optical Properties of Chemically Synthesized ZnS Nanoparticals

INTRODUCTION Nanoparticles having typical dimensions of 1-10 nm have attracted great interest in the past decade as well as in recent years because of their unique chemical, physical, electronic , optical and transport properties...

NaCN/DOWEX(R)50WX4: A Convenient System for Synthesis of Cyanohydrins from Aldehydes

Introduction Cyanohydrins are well-known as important synthetic intermediates1-4. Recently, we have reported that the DOWEX(R)50WX4 (low price cation exchange resin, strong acid) can be used as recyclable catalyst for the regioselective synthesis of Oximes...

Chemical Investigation of Lawsonia inermis L. Leaves from Afar Region, Ethiopia

INTRODUCTION  Lawsonia inermis Linn (Henna) belongs to the family Lythreaceae and the sole member of its genus Lawsonia. It is glabrous branched shrub or small tree (2 to 6 m in height). The leaves...

Theoretical Study Intramolecular Hydrogen Bond In Acetylacetone 3-Substituted Derivatives: NMR, NBO Analysis And Thermo-Chemical Investigation

Introduction Hydrogen bonding is one of the most important phenomena in chemistry because it is crucial to understand many different interactions both in the gas phase and in condensed media (1,2). In a particular...

Synthesis of some of pharamaceutically important pyrimido annulated analogues of carbazolo and azacarbazolo condensed aza-acridines

Introduction The present research  work includes to incorporate six membered rings viz; hydroxyl pyrimidine, mercapto pyrimidine, amino pyrimidine, methyl pyrimidine on the carbazole ,azacarbazole and condensed aza-acridine nucleus . The strategy adopted to incorporate...

Spectrophotometric Study of Stability Constants of Cr(III), Ni(II) and Cu(II) Complexes with a Schiff’s Base in Different Solvents

INTRODUCTION Although owing to versatile properties of Schiff’s bases they have multifarious roles in diverse fields, viz. industries1, analytical2,3, coordination4,5 and organic chemistry6,7, agriculture8, medical sciences9,10 etc. but ketoazomethines exhibiting novel ligation properties in...

Albendazole Solubilization in Aqueous Solutions of Nicotinamide: Thermodynamics and Solute Solvent Interactions

Introduction: The poor aqueous solubility of therapeutically active chemical compounds i.e. drugs may limit their efficacy and utility. Solubility of drugs in aqueous media is an important factor that influences their dissolution rate and...

Trace metal analysis in Withania somnifera

INTRODUCTION Withania somnifera belongs to family Solanaceae, also known as ashwagandha, winter cherry and Indian ginseng. It is an important herb in the ayurvedic and indigenous medicinal system of India. Therapeutic importance of the...

Curing Study of Epoxy/clay Nanocomposite by a New Aromatic Diamine Functional Curing Agent

INTRODUCTION Nanoclays have been used as fillers in polymer systems because of the improved mechanical properties1–4, thermal stability4–7, gas barrier properties8, and flame retardant properties of the resulting polymer composites7,9. Fiber-reinforced composites are a...

Synthesis of Diazoketones by the Action of Diazo-n-octane on 4-n Pentyloxy chloride

INTRODUCTION Diazoalkanes in recent years have been found to be susceptible to various systems and functional groups, such as reactive hydrogen12 ,olefinic and acetylenic bonds13,carbonyl group6 (aldehydic and ketonic ),hydroxyl3 and carboxylic  acid chloride...

Synthesis, Physico- chemical, Spectral, and X-ray Diffraction Studies of Zn(II) Complex of Pioglitazone – A New Oral Antidiabetic Drug

Introduction Pioglitazone HCl (PLZ) Fig.1, ((±) ‐5‐{p‐[2‐(5‐ethyl‐2‐pyridyl)ethoxy] benzyl} ‐2, 4 ‐thiazolidinedione hydrochloride) is an oral antidiabetic agent used in the treatment of type 2 diabetes mellitus also known as non‐insulin‐dependent diabetes mellitus1 (NIDDM) or...

Oxidation of Benzaldehyde by Quinolinium Chloro Chromate in Presence of Ctab in Sulphuric Acid Medium

Introduction Electron-transfer processes in micellar systems can be considered as models to get insight into electron-transport occurring in biological phenomena. It has been established that arrangement of hydroxy groups in polyhydroxylic molecules affects the...

Physico-Chemical and Antifungal Properties of Trypsin Inhibitor from the Seeds of Mucuna Pruriens

Introduction Protease inhibitors (PIs) are proteins or peptides capable of inhibiting the catalytic activity of proteolytic enzymes and are widely distributed in plants, animals and microorganisms. Plants are the most abundant sources of PIs...

Degradation of Phenol in Water by Titanium Dioxide Photocatalysis

Introduction A wide variety of organic pollutants are introduced into the water system from various sources, such as industrial effluents, agricultural run-off and chemical spills1. Their toxicity, stability to natural decomposition and persistence in...

The Potentiostatic Electrodeposition of Indium doped Aluminium Selenide Thin Films

Introduction The In containing AlSe thin films have significance in various applications particularly in electronic devices. The electrodeposition of these films was carried out potentiostatically. Certain methods are performed for this purpose but here...

An Efficient and Green Synthesis af Novel Azo Schiff Base and its Complex Under Ultrasound Irradiation

INTRODUCTION Schiff bases are well-known to have biological activates such as antibacterial1-2, antifungal3-4, antitumor5-6, antiviral7-8, anti bacterial7, antifungal7, anti-HIV-19, herbicidal10 and anti-influenza A virus11 activities. Perhaps the most common method for preparing Schiff bases...

(4+2) Cycloaddition Reactions of 9-Substituted Anthracene Compounds

Introduction Anthracene is a tricyclic aromatic hydrocarbon, it absorbs long wave UV radiation and it was first isolated in 1833 from coal tar. Since its discovery anthracenes have been found to have a large...

Uptake of Nutrients in Vegetables Grown on FGD-Gypsum-Amended Soils

Introduction Lignite is the important fuel for electricity production in Thailand. The reserved amounts are high and it is economical and socially acceptable. Flue gas desulfurized gypsum (FGDG) is a major by-product of various...

Performance Evaluation of ZnO based Rare Earth Element Doped Thin Films

Introducation Since last two decades there has been an explosive growth of research in the field of thin films[1-3]. Several articles and books have been published on different aspects of elements doped thin films....

A Novel Synthesis of Oxazolidinone Derivatives (A Key Intermediate of Linezolid)

Introduction The increasing incidence of bacterial resistance to a large number of antibacterial agents such as β-lactam antibiotics, macrolides, quinolones and vancomycin is becoming a major issue [1-4 ]. For the past several years,...

Contactless or High Frequency Conductometry or Oscillometry of Electrolytes

INTRODUCTION In the high frequency conductometry an electrochemical cell in which a solution to be analyzed between external , Parallel metal sheet electrodes is called capacitive cell or codensor type cell. Since the solution...

Synthesis and Characterization of Complexes of Glipizide with Zirconium and Cobalt

Cu (II) extraction from sulfate media by functionalized Algerian bentonites

INTRODUCTION Over the last few years, the pollution due to heavy metals has reached critical levels. It may often end up in ground and surface water short-term poisoning because of its occurrence in aqueous...

Effects of Processing on Physicochemical and Antinutritional Properties of Black Turtle Bean (Phaseolus vulgaris L.) Seeds Flour

INTRODUCTION Recent problems linked to meat consumption have also led to renewed interest in vegetarian diet. This phenomenon is reinforced by the fact that physicians have pointed out that consumers eat too many animal...

Synthesis of a New Cyclen-based Compound as a Potent Anti-tumor Medicine

INTRODUCTION Cyclen is one of the most important ligands in medicinal chemistry and derivatives of this macrocycle are used to form stable metal complexes with gadolinium, copper, indium, gallium, zinc, and other metals. These...

Mg/Triethylammonium formate: A useful system for reductive dimerization of araldehydes into pinacols; nitroarenes into azoarenes and azoarenes into Hydrazoarenes

Introduction Reduction of organic compounds is important synthetically both in the laboratory and in industry. In comparison with catalytic reduction using molecular hydrogen, transfer reduction using hydrogen donors has real and potential advantages1,2. Molecular...

Synthetic and Structural Studies of some Co (II), Ni (II) and Cu (II) Complexes with Nitrogen and Sulphur containing Schiff Base

INTRODUCTION Schiff base ligand containing nitrogen and sulphur show broad biological activity1-10 due its different ways in which they are bonded to metal ions. The Schiff base ligands are vital tool for the chemist...

Synthesis and Antimicrobial Activity of 1-Thiazolidin-4-ones

INTRODUCTION Imines often called as anils are useful as precursors for the synthesis of variety of organic compounds1-3 including hetrocycles. Thiazolidinones containing  sulphur  and nitrogen in five member ring, obtained by  cyclocondensation  of imines...

Reduction of Aldehydes and Ketones with LiBH4 Under Microwave Irradiation

Introduction Alcohols are important in organic synthesis.We have reported some reducing systems for the preparation of alcohols from the corresponding carbonyl compounds such as NaBH4/C1, NaBH4/M.W2, NaBH4/Al2O33, NaBH4/TiO24, NaBH4/(NH4)2C2O45, NaBH4/Ba(OAc)26,NaBH4/DOWEX(R)50WX47, Zn(BH4)2/H2O8, Zn(BH4)2/Al2O39, Zn(BH4)2/C10, Zn(BH4)2/2NaCl11,...

Synthesis, Characterization and Semi-empirical study of Di-nuclear Mixed-Ligands Complexes of Ru(II)

INTRODUCTION The chemistry of polynuclear transitions metal complexes has been of immense current interest, due to the fascinating and versatile properties exhibited by them [1]. Transition metal complexes containing polypyridyl- type ligands exhibit attractive...

Frequency-dependant dielectric characteristics and conductivity behavior of Sr1−x(Na0.5Bi0.5)xBi2Nb2O9 (x = 0.0, 0.2, 0.5, 0.8 and 1.0) ceramics

Introduction Ferroelectric ceramics are the heart and soul of several multibillion dollar industries, ranging from high-dielectric constant capacitors to later developments in piezoelectric transducers, positive temperature coefficient devices and electro-optic light valves [1]. The...

Development trends in Conductive Nano-Composites for Radiation Shielding

INTRODUCTION By definition, a composite material is made of two or more constituents with significantly different physical and chemical properties and which remain separate and distinct within the final structure. This combination (hopefully) leads...

Design and Synthesis of new Steroid-cyclobutanone derivative

Introduction Since several years ago, diverse corticosteroid derivatives have been development; for example, the synthesis 3α-acetoxy-16β-methylpregnane-l1,20-dione by catalytically reduction of 3α-acetoxy-16-methy1-16-pregnene-11,20-diene using palladium on charcoal in acetic1. Other reports indicate the preparation of 17α-Hydroxy-3,11,20-triketo-2l-azido-4-pregnene...

Synthsis, Specrtoscopic, Electrochemical and Antibacterial Activities of Mono- and Homobi-Nuclear Of Ru (Ii) Complexes with a Triazolate Bridging Ligands

INTROUDUCTION Substituted 1,2,4-triazoles has been actively studied as bridging ligands between metal (II) ions coordinating through their N1 and N2 atoms, since their complexes have interesting structures and specific magnetic properties.1,2   Interesting to note...

Synthesis and Characterization of Metal-B-diketonate Coordination Complexes and Polymers

Introduction In the domain of supramolecular chemistry and crystal engineering, metal-organic frameworks (MOFs) and coordination polymers have attracted increasing interests as advanced materials due to their unique properties and multifunctionality [1-2]. MOFs framework structures...

Dissolution of wood flour and lignin in 1-butyl-3-methyl-1-imidazolium chloride

Introduction Lignin is the second most abundant natural polymer. So far, suitable industrial applications have not been found for lignin. The reason for this is the lack of adequate studies on the chemical structure...

Study of carbon foams synthesized by the pyrolysis of wastes coconut shells of african palm at different conditions and use of immersion calorimetry as a tool for characterization

INTRODUCTION The special structures of carbon foams, whose characteristics give them a special value and a wide range of applicability, have recently been synthesized. They have a microstructure in the defined structure and other...

Antiplatelet aggregation activity of 5-Hydroxyflavone, 2’-Hydroxyflavanone, Paeonol and bergenin isolated from stem bark of Garcinia malaccensis in human whole blood

INTRODUCTION The plant kingdom has served as one of man’s oldest sources of useful drugs. They are remarkable in their ability to produce a vast number of diverse secondary metabolites ranging in chemical complexity...

Hydrogels: smart materials for drug delivery

Introduction The term hydrogels was originally introduced by Wichterle and Lim in 1960s and its biological application was put forward.1 Since then, hydrogel technology has evolved at a huge scale in pharmaceutical industry. The...

Semiconducting Nanostructures and Nanocomposites for the Recognition of Toxic Chemicals

Introduction Semiconductor nanomaterials have attracted significant attention in research and applications in areas including energy conversion, sensing, electronics, photonics, and biomedicine. The parameters such as size, shape, and surface characteristics of semiconducting nanomaterials are...

Synthesis and Thermal Properties of Nickel B-diketonate Polymers

Introduction Metal-organic polymers including b-diketonate fragments have attracted increasing interests as advanced materials due to their unique properties and multifunctionality [1]. The design and synthesis of such polymer chains can be constructed by binding...