etd AT Indian Institute of Science: Recent submissions
Now showing items 881-900 of 9224
-
Synthetic studies in B-Nonsteroids
Chapter I Describes the objectives of the present work. Chapter II Embodies the syntheses of the key intermediates for the synthesis of several B-norsteroids: (i) 4,7-dimethoxy-3,3-dimethylindanone (2.1), (ii) ... -
Physicochemical interactions in synthetic templates
This thesis entitled “physicochemical interactions on synthetic templates” is divided into three sections. Since the unifying theme of the work is the use of affinity chromatographic techniques for the purification of ... -
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