Division of Chemical Sciences: Recent submissions
Now showing items 321-340 of 1541
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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 ... -
The fate of phase transitions in VO2 on doping
Ever since its discovery more than six decades ago, thermally-induced insulator-metal transition (IMT) in vanadium dioxide (VO2) has attracted much attention, not only because of its near-room temperature IMT at ~340 K, ... -
Structure-Activity Correlation Studies of Mononuclear Mn(I) Carbonyl Complexes as Photoactive Carbon Monoxide Releasing Molecules
Carbon monoxide (CO) is a recognized gasotransmitter, similar to nitric oxide (NO) and hydrogen sulphide (H₂S). It is endogenously produced in mammals as a result of haem catabolism, catalysed by haem oxygenase enzymes. ... -
Studies on the reactivity of dicopper (II) tetraacetate dihydrate towards N-donor ligands
Abstract not available -
Combustion synthesis and properties of fine particle oxide materials: studies on Ferrites
Synthesis of oxide materials with desired structure and properties is of prime importance in Solid State Chemistry and Materials Science. Since the discovery of superconductivity in oxide ceramics, there has been renewed ... -
Studies of Arabinomannan Glycans in Carbohydrate-Protein Interactions and Thermotropic Liquid Crystal Behavior
This thesis investigates the structural and functional roles of multivalency and self-assembly of arabinomannan-based glycoconjugates and glycolipids. Synthetic arabinomannan oligosaccharides were prepared, with defined ... -
Synthesis, spectra and structure of hydrazinium metal chloride and thiocynate complexes.
Coordination compounds containing positively charged ligands occur rather seldom in marked contrast with neutral and negatively charged ligands. The presence of positive charge in the vicinity of a potential donor atom in ... -
Contributions to the chemistry of phosphorus fluorine compounds and a few complex fluorides
The thesis incorporates the results of the investigations on (1) Oxidative reactions of sulphur trioxide, iodine monochloride and nitryl chloride with phosphorus trifluoride and thiophosphoryl fluoride, (2) Reactions of ... -
Studies on fine particle alpha alumina and related oxides prepared by a novel combustion process
Aluminous oxides form one of the major and most important classes among oxide ceramics. Their technological applications as refractories, abrasives, cutting tools (?-Al?O?, MgAl?O?), high alumina cement (CaAl?O?), catalysts ...