etd AT Indian Institute of Science: Recent submissions
Now showing items 1441-1460 of 9466
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Studies of hydrazinium salts
The present investigation aims at synthesis, characterization, reactivity, thermal properties and applications of some of the hydrazinium salts. In the introductory Chapter, a literature survey on the chemistry of hydrazine ... -
Studies on high energy hydrazine compounds
The present investigation aims at synthesis, characterisation, reactivity, thermal properties and applications of some of the high?energy materials of hydrazine. The chemistry of hydrazine is of interest because of its ... -
Aminolysis reactions of octachlorocycloterathophazene, Ph.D. Thesis
3–12. Conclusions – The present work embodies the first systematic investigations of the reactions of octachlorocyclotetraphosphazene with two primary aliphatic amines, viz., ethylamine and t-butylamine. In both cases, in ... -
Physical adsorption from mixtures of gases-Thesis submitted for the Degree of Doctor of Philosophy In the faculty of Science
The thesis deals with a study of the adsorption from binary mixtures of gases on solid surfaces. A major part of the investigations is carried out on silica gel, while a part of the work consists of an investigation on ... -
Electronic structure and spectroscopy properties of some thicarboy compounds
8.1 SEMI-EMPIRICAL PARAMETERS Different sets of bonding parameters in the CNDO/2 formalism and various approximations for evaluating the off-diagonal matrix element in the SCC-EH method were employed for a group of thioamides ... -
Combustion synthesis and properties of nanosize oxides : studies on solid oxide fuel cell materials
Salient Features The low?temperature initiated, self?propagating, and gas?producing combustion process, developed and used for the preparation of technologically important oxide materials, has now been successfully extended ... -
Coordination chemistry of lanthanides
Based on the studies on the lanthanide complexes of pyridine?1?oxide and its methyl?substituted derivatives, it has been concluded that the methyl substitution at the 4?position of the pyridine ring does not bring down the ... -
Reactivity of substituted thesis
The thesis embodies investigations carried out to understand the mechanism of thermal decomposition and explosion of some high?energy compounds of nitrogen. The importance of these compounds stems from the fact that the ... -
Thermal decomposition of zirconyl Oxalates of bivalent Metals
The introductory chapter begins with a brief account of the thermal decomposition of simple and complex oxalates. General theory of kinetics of decomposition of solids is also presented. The conventional ceramic method of ... -
Thermal decomposition of titanyl oxalates of bivalent metals
The present study reveals some interesting facts both on the thermoanalytical techniques in general and thermal decomposition of titanyl oxalates in particular. The results of thermal analyses and explanations based on ... -
Polarographic and potentiometric behaviour of amino acid complexes of uranyl and ferric ions
Abstract not available -
Physico-chemical investigations on rare earth compounds
The work on the hydrolysis of lanthanum ion described in this thesis has revealed the existence of the following hydroxy complexes: LaOH²?, La(OH)??, La?OH³? and La?OH??. The various reactions that occur in this system ... -
Studies on the chemical behaviour of elemental sulphur and some of its compounds
The present investigation, the hydrolytic reactions of elemental sulphur, heptasulphurimide, tetrasulphur tetraimide, tetrasulphur tetranitride, dimethyl and diethyl thiosulphites, tetraethyl dithiodiamine, dithiopiperidine, ... -
Studies in the chemical behaviour of sulphur compounds (disulphur monoxide)
Earlier observations made by several workers in the field indicated that a small amount of lower oxide of sulphur could be prepared when sulphur was slowly oxidised by air at normal pressure. The yield of the lower oxide ... -
Potentiometric and spectrophotometric Investigations of Nickle Complexes
1. Nature of mononuclear complexes in nickel ethanolamine systems The work presented in this thesis indicates that nickel forms six complexes, NiA? to NiA?²?. In this respect nickel–monoethanolamine complexes resemble ... -
Thermal decomposition studies on the oxalates of lanthanum cerium and thorium
The thermal decomposition of the hydrated oxalates of lanthanum, cerium and thorium have been studied by (i) thermogravimetry, (ii) differential thermal analysis, (iii) vapour pressure measurements and (iv) vacuum decomposition ... -
Studies in structural chemistry
The molar refractions of the rare earth nitrates, the ionic refractions and the polarizabilities of the trivalent rare earth ions decrease from lanthanum to ytterbium with a break at gadolinium, as a consequence of lanthanide ...