Volume 27, Number 1

Development and Validation of Spectrophotometric Method for Estimation of Cephalexin in Bulk and Tablet Dosage Forms

Introduction Chemically, Cephalexin is 7 -a -D- phenylglycyl amino -3 –methyl -3 –cephem – 4-carboxylic acid monohydrate (1). It is first-generation member of cephalosporins which inhibits mucopeptide synthesis in the bacterial cell wall (2)....

Synthesis, Characterization and Antimicrobial Activity of Pr(III) and Nd(III) Complexes of Schiff base Ligands

Introduction Coordination complexes are widely used in several areas of chemistry such as analytical chemistry, medicinal chemistry, agriculture and industrial chemistry1. Lanthamide complexes with high coordination number six to ten are reported2-5. Schiff bases...

The Electrode Kinetic Study of Ga(III) Complexes with Citrulline at Different Temperatures by Polarographic Technique

Introduction The equation for the polarographic current-potential curve corresponding to a totally irreversible process whose rate governed by a single electron transfer step has been obtained by several authors1,2. A plot of Ede Vs...

Synthesis Methods of Metal Chelates b-ketoesters – (A Critical Review)

Microwave Synthesis and Characterisation of Coumarin Based Ligands and their Metal Chelates

Ferronia elefuntum Fruit Shell: A Carrier for Scavenging the Zinc from Aqueous Solution

Synthesis and Characterisation of new Spiro Heterocyles

Synthesis, Characterization and Physico-Chemical Studies of Schiff-base Complexes of Praseodymium and Neodymium

Introduction Aminobenzoic acid is included as a member of the vitamin B group. Deficiency of aminobenzoic acid in living beings could not be demonstrated. Aminobenzoic acid and its extracts find use by tropical application...

Synthesis and Characterization of Hg (II) Complexes with Macrocycic Ligand

Introduction The coordination chemistry of multidentate macrocycles has been a field of intensive research over the past many years. The tetraazamacrocyclic ligands and their metal complexes have attracted growing interest among coordination chemists followed...

Antibacterial and Antifungal Study of Synthesised Anthracenyl Based Triazole Cycloadducts

Introduction  1,2,3-triazolines were reported to be herbicidal active anticonvulsants1 and antiischemic agents2 as rational drug design.  Also triazolines are use synthetic intermediates in synthesis of natural products3   and  drugs.4-7 Dipolar cycloaddition reaction of azide with olefinic dipolarophile...

Hydrolysis of Nitrile in Presence of NaY Zeolite under Microwave Irradiation

Introduction Development of the simple and general synthetic routes for widely used organic compounds from the readily reagents is one of the major challenges  in organic synthesis. Zeolites have found many important industrial, agricultural...

New Spectrophotometric Methods for the Determination of Naratriptan Hydrochloride in Bulk and its Pharmaceutical Formulations

Studies on the Mineralogical Characterization of Coals of Jharia (District-Dhanbad) Coal Field (Lodna & Bhowrah Coal), by X-Ray Differaction (XRD) and IR Spectroscopic Instrumental Techniques

TLC Densitometric Method for the Estimation of Piperine in Ayurvedic Formulation Trikatu Churna

Introduction Trikatu Churna is well known Ayurvedic Formulation, comprised of the fruits of two medicinal important plants of Piper longum (Pipali) along with Piper nigrum (Marica) and rhizomes of Zingiber officianalis (Saunth). Trikatu churna...

Stability Constants of Metal (II) Complexes with some Derivatives of Malonamic Acid in Different Percentage of Dioxane Water Mixture

Organoruthenium (II) Complexes with Thioamide Ligands

Introduction Organometallic Chemistry of ruthenium (II) is currently receiving a lot of attention due to catalytic1-3 medicinal4-5, anti-bacterial6 and significant biological activities7-8. The present communication comprises synthesis, spectral characterization structural investigations and nature of metal ligand...

Mixed Ligand Complexes of Transition Metal Chelates of 1-nitroso-2-naphthol and 8-hydroxyquinoline with Picolinic Acid and Quinaldinic acid

Synthesis and Characterization of Manganese (II), Cobalt (II), Complexes of New Polydentate Ligands Containing 1,8-Naphthydridine Moiety

Synthesis and Spectral Studies of Cobalt (II) and Nickel (II) Complexes with 18-membered Macrocyclic Ligand Derived from Malonodihydrazide

Introduction  Worldwide attentions have been given to studies on macrocyclic complexes with tetraaza   system1-4 Consequently, we in the present communication, in continuation of our earlier interest5-6, are reporting a series of cobalt(II) and nickel(II)...

Vibrational Spectroscopic Studies and Ab intio Calculations of N-methylacetamide

Introduction Spectroscopic investigation of N-methylacetamide(NMA), which is considered a model for a peptide bond in proteins, can provide information about secondary structure of proteins in the gas phase as well as in solution. Numerous...

Effect of Annealing on the Activation Energy of Thin Films of Manganese Sulphide, Copper Phthalocyanine and Multilayer Manganese Sulphide-Copper Phthalocyanine from their Electrical Studies

Introduction In the search for low-cost solar energy materials, organic – inorganic photovoltaic junctions in thin-film configuration deserves great attention. The first observations in this field have been made on inorganic semiconducting crystals by...

Identification and Characterization of Aromatic Compounds from Ground Water in the Patancheru Industrial Development Area and its Environment, Medak District, Andhra Pradesh, India

Introduction Now-a-days many people / Scientists are discussing the various pollution problems of Patancheru.  Because more than 450 industries are located in and around dealing in the production of Pharmaceuticals, Bulkdrugs, paints and pigments,...

Evaluation of Antipyretic Potential of Aegle marmelos (L.) Correa Leaves

Introduction Aegle marmelos (L.) Corr., (Rutaceae) is a popular medicinal plant in the Ayurvedic and Siddha systems of medicine and folk medicines used to treat a wide variety of ailments. The Bael tree is...

Comparison of Langmuir and Harkins-Jura Adsorption Isotherms for the Determination of Surface Area of Solids

Introduction The most characteristic property of the surface of a solid is its ability to adsorb gases and vapours. Activated charcoal, Alumina, Titanium dioxide, Silica gel, etc. are the widely used materials in industry...

Synthesis, Characterisation and Antibacterial Activities of Titanium(III) Complexes with Schiff Bases Derived from Benzofuran

Synthesis of Polyhydric Phenolic Phenacyl Ethers

Synthesis, Characterization and Fungitoxicity of 3,4,6-triayl-s-triazolo [3,4-b]-1,3,4-thiadiazolo [1,3,5]-triazine-5-thiones

Studies on the Complexes of 2-Hydroxy-4-Methoxy Acetophenone oxime

IR, Raman and Ab-initio Calcualtions of Glycolic Acid

Introduction Biodegradable polymers can be efficiently utilized for various purposes such as drug delivery, orthopaedic, dental, and tissue engineering1-7. Such sophisticated applications usually require polymers with narrowly defined material properties. For a polymer to...

Adsorption of Acid Dyes from Aqueous Solution onto the Surface of Acid Activated Jaswand Leaf Powder: A Case Study

Mixed-Ligand Complexes of Palladium (II), Ruthenium (II), Rhodium (III) and Iridium (III) with Triphenyl Phosphine and Dibenzyl Sulphide

Introduction Mixed-ligand phosphine complexes of late transition metals are versatile homogeneous catalyst and subject of review.1-6 A variety of catalytic processes involve metal precursors modified with triphenyl phosphine, plays a major role.7-8 The present...

Kinetics and Mechanism of the Bromination of Acetanilide

A Fast Route for the Synthesis of Cyclic Guanidine Derivatives

Introduction Guanidines is a key structural element of many biological active compounds such  as arginine (A small group of about 20 amino acids commonly found in protein).1 It is a basic unit found  in ...

Synthesis, Characterisation and Antibacterial Studies of Transition Metal Complexes Derived from S-benzyl-b-N- (2-hydroxy-5-bromophenyl) Methylendithiocarbazate

A Regioselective and Stereoselective Methoxy Bromination of Olefins using Diacetoxyiodobenzene and Phenyltrimethyl Ammoniumtribromide

Introduction The transformation of olefins into the corresponding alkoxy-bromides is frequently practiced in organic synthesis1. The resulting bromo-derivatives of olefins are precursors to organometallic reagents and useful in nucleophilic substitution reactions2. These bromo-derivatives also...

Synthesis and Hydrolysis Kinetic Study of Few Co-drugs of Propranolol and other Antihypertensive Drugs

Introduction A co-drug is comprised two or more covalently bound moieties, wherein each moiety is a residue of a constituent compound having a biological activity, or a prodrug form thereof, wherein said codrug is...

Ligand Field Parameters of Some Transition Metal Ion Complexes of Some Substituted Hydrazones and their Antibacterial Activity

Introduction The interest in the study of hydrazones possessing potential donor sites has been intensively increasing last years because of their pharmacological activity, attributed to their ability to form stable chelates with transition metals...

Mechanistic Study of Chromium (VI) Catalyzed Oxidation of Benzyl Alcohol by Polymer Supported Chromic Acid

Introduction Chromium trioxide dissolves in water to form Chromic acid. Chromic acid being one of the most versatile available oxidizing agents. Now a day the development of newer chromium (VI) reagents 1-6 for the...

Synthesis and Characterization of some CIS [Ru(NO)XL2(PPh3)2 (X=Monodentate) Type Complexes of Nitrosylrutheitum (II)

Studies on the Chemical Constituents and the Pulp and Paper Making Characteristics of Ipomoea carnea Jacq.

Introduction India is on the threshold of big developement for the enhancement of industries and the progress of the country.Paper is one of the industry which is expanding rapidly to fulfill the demand of...

Synthesis, Physico-chemical and Antimicrobial Studies of Bidentate Schiff Base Complexes of Co(II), Ni(II) and Cu(II)+

Introduction Isoquinolone derivatives are important heterocyclic compounds of biologically active compounds1-5. They possess useful biological activities such as antimalarial6, antibacterial7,8, antimicrobial9 activities. Keeping the above consideration and our earlier work10-17 on Schiff base metal...

Synthesis of New Ferrocenyl-b-diketone Ligands and Studies on their Complexation with Cu(II), Ni (II) and Zn(II) Metals

Synthesis of (Z)-2-(4-substitutedbenzylidene)-7-isocyano-3,6-dioxo-8-phenyl-3,6-dihydro-2H-thiazolo-[3´,2´:2,3][1,2,4] triazolo[1,5-a]pyridine-9-carbonitrile

Introduction Triazoles are important classes of heterocyclic compounds. In particular, fused 1,2,4-triazoles express antifungal1, bactericidal1,2, anxiolytic3,4, anticonvulsant5 or herbicidal6 activities and can act as antidepressants7. Therefore, versatile and widely applicable methods for their synthesis...

Synthesis and Characterisation of Polystyrene Supported Chelating Ligands and their Transition and Inner Transition Metal Complexes

Introduction The reaction of polymer-anchored ligand with metal ions provides an easy route for the synthesis of immobilized  transition metal compounds. Several polymer-anchored ligands like porphyrins, polydentateamines, crown ethers, iminodiautic acid, acetyacetone, tripeptide and...

Comparative Kinetic and Mechanistic Study of Oxidation of Benzoic, o-toluic Benzoic, p- Toluic Benzoic acid Hydrazides with Thallium (III) in Acidic Medium

Introduction A detail investigation of oxidation of carboxylic acid hydrazide by thallium(III) have not been received much attention. Therefore, with a view to develop a new method, the present study was carried out. The...

Molecular Interactions in Ternary Liquid Mixture of Morpholine, Cyclohexanone and 1-Hexanol at 308.15K and 318.15K

Introduction Knowledge of density, viscosity and ultrasonic velocity of liquids and liquid mixtures, both binary1-2 and ternary3-5, is of great importance in predicting the nature of molecular interactions between unlike molecules in industrial process....

Phosphate Solubilization Potential of Penicillium species Inhabiting the Hilly Terrains of Pachmarhi (India)

Introduction Phosphorus (P) is an essential element classified as a macronutrient because of the relatively large amounts of P required by plants. Phosphorus is one of the three nutrients generally added to soils in...

Synthesis and Biological Studies of Pyrazolo [3, 4-d] Pyrimidines

Introduction pyrazolo [3,4-d] pyrimidines are of considerable chemical and pharmaceutical importance as purines analogs [1-3] of naturally occurring fused uracils that possess diverse biological activities4.These derivatives[5-8] were found to be selective ligands with antagonist...

A Theoretical Study of Spectroscopic Properties of a Hemiacetal by TDDFT Method

Introduction The formation of acetals as a result of reaction between aldehydes and alcohols is known to proceed through the formation of the corresponding hemiacetals (structure I, Figure 1). These hemiacetals are highly unstable...

Azopolyamides-Synthesis and Thermal Studies

Introduction With the impetus derived from aerospace and military industries for high – modulus and high strength fibres, considerable progress has been made in recent years on the synthesis of heat – resistant polymers...

Volatile Constituents in Aerial Part of Kelussia odoratissima from West of Iran

Introduction There is at present increasing interest in the dusty and in scientific research for the essential oils and various extracts of plants as sources of natural products [1]. Herbs have been used for...

Photodegradation of Dye Pollutant on Ag/ZnO Nanocatalyst under UV-irradiation

Introduction Textile industries produce large volume of colored dye effluents which are toxic and non-biodegradable.  Reactive dyes are commercially, a very important class of textile dyes, whose losses through processing are particularly significant and...

Efficient Ruthenium-Catalyzed Double Condensation of Indoles and Ethereal Dialdehydes

Introduction Lewis acids play key roles in a large number of reactions, and their use in organic synthesis continues to see rapid development [1]. Transition metal Lewis acid catalysts have emerged as a new...

Characterization of Quaternary Chalcogenide As-Ge-Te-Si Thin Films

Introduction Chalcogenide glasses are a recognized group of inorganic glassy materials which always contain one or more of the chalcogen elements S, Se, or Te but not O, in conjunction with more electropositive elements...

Volatile Components and Antioxidant Effect of Essential Oil of Anthemis mauritiana Maire and Sennen Flowers

Introduction The genus Anthemis (Asteraceae, syn. Compositae) is the second largest genus in this family, with more than 210 species that occur in the Mediterranean region, southwest Asia and eastern Africa (1). Anthemis mauritiana...

Chemical Composition, Calcium, Zinc and Phytate Interrelationships in Albizia lebbeck and Daniellia oliveri seeds

Introduction Albizia lebbeck is of the family Mimosaceae. It is a moderate to large deciduos tree that reaches 30m in height in rain forests. The tree develops a straight holed when grown in dense...

Temperature Effect, Activation Energies and Thermodynamics of Adsorption of ethyl 2-(4-(2-ethoxy-2-oxoethyl)-2-pTolylquinoxalin-1(4H)-yl)Acetate on Cu in HNO3

Introduction The effect of temperature on the corrosion inhibition of various organic compounds was treated by several works [1-4]. Investigations attempt to describe the corrosion phenomena of metals in aggressive media in the presence...

Synthesis and Properties of Biopolymer based on Carboxymethyl Cellulose-g-Poly(N-vinyl pyrollidin-co-2-Acrylamido-2-methyl propan Sulfonic Acid as Superabsorbent hydrogels

Introduction Superabsorbent hydrogels are hydrophilic, three dimensional networks. They exhibit the ability to highly swell in water, saline or biological fluids and retain a significant fraction of them within their structure, but they do...

Human Exposure to Heavy Metals from Cosmetics

Introduction During the past decades the safety of cosmetic products and their ingredients has attracted increasing attention; thus their toxicological safety evaluation is a relatively young discipline, which evolved in the second half of...