Division of Chemical Sciences: Recent submissions
Now showing items 221-240 of 1275
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Molecular design strategy for high EQE and low efficiency roll-off TADF organic light emitting diodes
Purely organic thermally activated delayed fluorescence (TADF) emitters are cost-effective alternatives to the rare-earth-metal-based phosphorescent emitters, offering high exciton utilization for advanced optoelectronic ... -
Mixed Metal Oxide Electrodes for Oxygen Evolution Reaction
This thesis explores transition metal oxide catalysts for the oxygen evolution reaction with a specific focus on cobalt and copper oxides. CoOx is well recognized for it’s OER activity, while CuOx received less attention. ... -
Theoretical and computational studies of solvent and vibrational dynamic effects on electron transfer reactions and overtone vibrational dephasing in liquids
This thesis consists of two parts. In the first part, a detailed theoretical study of the effects of ultrafast polar solvent modes and the intramolecular vibrational modes on electron transfer reaction (E T R ) is ... -
Asymmetric Catalysis, Transition metal catalysis, Allylation, Propargylic alkylation, Cooperative catalysis and nonadjacent stereocenter
Transition metal catalysis has transformed asymmetric synthesis by enabling precise control of stereocenters, essential for bioactive molecules. This thesis outlines a systematic investigation of stereochemical complexity ... -
Investigations on the total synthesis of oxasteroids
The thesis is divided into three parts: Part I: Review A review of the chemistry of known oxasteroids with particular emphasis on: Total synthesis Physiological activity Part II: Introduction Outlines the objectives ... -
Synthetic investigations on Azulenes
At present a variety of methods for the synthesis of azulenes are available. These can be divided under three main heads: I. Methods involving a change in ring size II. Methods by which a 7-membered ring is built on a ... -
studies in synthesis of 6-oxasteroids
Thesis Title Studies in: (I) Synthesis of 6-Oxasteroids and (II) Ultraviolet Spectra of 1,2-Dicyano Esters and Related Compounds The thesis is divided into three parts: Part I: Synthesis of 6-Oxasteroids Chapter I: A ... -
Investigations on the total synthesis of testorterone and its isomers : A thesis submitted to the I.I.Sc. for the degree of doctor of philosophy.
The thesis entitled "Investigations on the Total Synthesis of Testosterone and its Isomers" is divided into two parts. Part I consists of a comprehensive review of the earlier work done on the chemistry of testosterone and ... -
Synthetic studies in terpenes synthesis of the cis, trans-C-11 acid : The degradation product of agathic acid
The thesis entitled "Synthetic Studies in Terpenes – Synthesis of the cis/trans-C-11 Acid, the Degradation Product of Agathic Acid" is divided into two chapters. Chapter I is a comprehensive review of the chemistry of the ... -
Synthesis of fused heterocyclics
The thesis consists of two parts. Investigations on quinolinoquinolines are embodied in the first part, and investigations on (C3)quinazolones are embodied in the second part. Preceding the two parts, there is a brief ... -
Studies on the solid state decomposition of oxalic acid and ammonium oxalate Ph.D. Thesis
This thesis embodies studies on the photolysis of oxalic acid and ammonium oxalate and the low-temperature thermal decomposition of ammonium oxalate. From a detailed review of the literature, it was evident that very few ... -
Contributions to the chemistry of disulfur monoxide
Disulfur monoxide is an unstable gaseous species. Even at comparatively lower temperatures, it undergoes decomposition into sulfur dioxide and elemental sulfur. When dissolved in chilled carbon tetrachloride, the solution ... -
Dilute solution on properties of Methyl Methacrylate-Acrylonitrile random Copolymers
The large values of a, the M.H. exponent, suggest that these molecules are highly extended in the solvents studied. Application of S.F. and other existing theories like I.P. to calculate the unperturbed dimensions lead to ... -
Dynamics in complex systems: liquid crystals, biological water, supercooled water and enzymes
The origin of the glassy orientational dynamics, both single particle and collective, of nematogens near the isotropic-nematic transition has been addressed in several publications in recent years [5-7, 12]. In these ... -
Electron spectroscopic studies of the adsorption and reactivity of oxygen on transition metal surfaces covered with alkali and alkaline earth metals
Characteristic Cl(2p) and O(1s) peaks are seen by XPS attributable to distinct adsorbed chlorine and oxygen species on potassium and barium dosed Ag surfaces: a) There is selective stabilization of molecular dioxygen species ... -
Investgations of molecular interaction by photoelectron and electron energy loss spectrospies
Electronic structures of a variety of electron donor-acceptor complexes have been studied by employing ultraviolet (HeI) photoelectron spectroscopy. The systems studied are the complexes of BH? / AlCl?, GaCl? and SO? with ...