etd AT Indian Institute of Science: Recent submissions
Now showing items 1121-1140 of 9462
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Excited state behaviour of substituted cyclopropenethiones and thioketenes and photochemical investigations in cyclodextrins
The thesis entitled “Excited State Behaviour of Substituted Cyclopropenethiones and Oxyketenes and Photochemical Investigations in Cyclodextrins” is divided into three parts. Part A deals with the strain?assisted ??cleavage ... -
Physicochemical interactions on synthetic templates. Ph.D. Thesis
The thesis entitled "Physicochemical interactions on synthetic templates" can be subdivided into three main sections. The first section is a general introduction dealing with templates. The second section deals with some ... -
Studies on the synthesis and physico- chemical properties of polyperoxides and copolyperoxides
The synthesis and spectroscopic characterization of three polymeric peroxides of styrene monomers with substituents in the para position are discussed. NMR spectroscopy revealed the alternating copolymer structure with ... -
Combustion synthesis and properties of fine particles spinel, Perovskite and K2NiF4 Type oxides
Technologically important fine?particle, mixed?metal, transition?metal oxides such as spinels (MCr?O?), perovskites (LnCrO?, La(Sr)MnO?, LaCoO? and LaNiO?) and K?NiF??type oxides (La?CoO?, La?NiO?, La?CuO? and La?.?Sr?.?CuO?) ... -
X-ray crystallographic investigations on metal complexes of nucleic acid constituents
Abstract not available -
Kinetic and synthetic investigation of the reactions os halogeno and arlyosycyclophosphazenes
The reaction of hexafluorocyclotriphosphazene, N?P?F? (14), with sodium phenoxide in THF yields phenoxy?substituted fluorocyclotriphosphazenes of all degrees of substitution. The results obtained in this investigation ... -
Structural and thermal studies on hydrazinum (1+) metal sulfate and oxalate complexes
Coordination compounds of hydrazine are of particular interest because of the variety of ways in which hydrazine can be coordinated to the metal ion. Apart from its ability to function as a monodentate ligand, another ... -
Physico-chemical studies on the dilute solution propertie of random copolymers ofacrylonitirle.
The large values of ‘a’, the M.H. exponent, in good solvents for both St–M and MMA–AN suggest that these molecules are highly extended in solution. Application of the different theories to calculate the unperturbed dimensions ... -
Electronic structures
The studies pertain mainly to the correlation of electronic structure and physicochemical as well as biological properties of five different sets of biologically important heteroaromatic N?oxides, employing molecular orbital ... -
theoretical studies on intermolecular interactions in formation Hydrocarbons
Abstract not available -
Mineral chemistry and physico chemical properties of amphibole asbestos form south Karnataka
Formation of amphibole asbestos is related to the metamorphic changes in the host rock. The variety of amphibole asbestos produced depends on the chemistry of the rocks, which, in turn, is determined by the extent of ... -
Studies on the thermal decomposition of alkali metal azides and perchlorates
The thesis embodies investigations on the mechanism of the thermal decomposition of the alkali metal azides and perchlorates. A lot of work has been done on the thermal decomposition of these metastable materials. However, ...