Division of Chemical Sciences: Recent submissions
Now showing items 361-380 of 1541
-
Photoelectrochemistry of polycrystalline SrTiO3 and BaTiO3 semiconductor electrodes
This thesis deals with the investigations on the photoelectrochemistry and photoelectrolysis of water, making use of polycrystalline semiconductor electrodes of BaTiO? and SrTiO? with a view to understand the effect of ... -
Combustion synthesis and properties of ferroelectrics, relaxor ferroelectrics & microwave resonator materials
Dielectric materials include ferroelectrics, relaxor ferroelectrics and microwave resonators which are classified on the basis of their dielectric performances like dielectric constant, dielectric loss and piezoelectric ... -
Isonitroso-keto-imino Nicle (II) complexes-A study in ambidentate coordination.
In conclusion, it may be said that the isolation of the present complexes reveals the wider occurrence of linkage isomerism in isonitroso-p-keto-imine ligand complexes. These belong to the rare type of complexes where the ... -
Metal cxhelates in vinyl polymerisation
A general kinetic scheme for the polymerization of vinyl monomers, initiated by dipivaloyl methane chelates of ferric and cupric, was postulated in Chapter III. The results of the spectral investigation complementary to ... -
Studies on dialkyldithio-carbanate collectors with reference to sulphide minerals
These studies have shown that the dithiocarbamates are not oxidised either in solution or at the surfaces of sulphide minerals. Such an oxidation is not a prerequisite for the adsorption of these collectors at the sulphide ... -
Physico-chemical studies of vinyl polymers
The field of polymer science presents a number of problems for investigation both in the solid form and in solution. Of these, most interesting and important is the molecular weight, the size, and the shape of the polymer ... -
Understanding RNA-Metal Ion Interactions: RNA Folding Pathways and Ion Selectivity
Ribonucleic acid (RNA) plays diverse and critical roles in cellular function. For most biological functions, RNA must fold into specific three-dimensional structures, and physiologically abundant monovalent (Na+ and K+) ... -
Computational studies of the effect of confinement in Zeolitic cavities on the diffusion of monatomic Sorbates and the melting characteristics of Argon Clusters
The present chapter has attempted to study the temperature dependence of the levitation effect. It has been shown that this effect is most pronounced at lower temperatures and decreases in intensity at higher temperatures. ... -
Theortical studies of polar solvation dynamics, ionic mobility, solute diffusion and activated barrier crossing dynamicsin dense liquids
There are several features of this chapter that are new. The self-motion of the probe solute has been incorporated here for the first time and studied systematically. The theoretical approach captures quite successfully ... -
Computer simulation studies of orientational relaxation in strongly correlated dipolar systems
In the preceding three chapters of this thesis, computer simulation and theoretical studies of orientational relaxation in dipolar liquids and solids have been presented. The primary objective has been to understand the ... -
Investigation of fullerenes, Carbon nanotubes, Onions and small gold particles
Abstract not available -
Novel layered & three-dimensional oxides of perovskite & related structures: synthesis & investigation of ion-exchange & intercalation
In this chapter, we have described the synthesis of a new series of protonated layered perovskites of the formula, HCa???La?Nb???Ti?O??, from the corresponding potassium compounds by ion-exchange. The protonated compounds ... -
Theoretical studies of barrierless and very low barrier chemical reactions in solution
The above review of experimental investigations on the photophysics of stilbene and related compounds and the torsional dynamics of TPM in dyes in condensed phase clearly indicate a strong influence of viscosity and polarity ... -
Investigations of the interaction of molecules with clean and modified transition metal surfaces by techniques of electron spectroscopy
We have hitherto discussed the features of adsorbed oxygen on a variety of metal surfaces as characterised by the techniques of electron spectroscopy. Specifically, the characteristics of the different oxygen species O²?, ... -
Studies on porous iron electrodes for alkaline storage batteries and supplementary investigation on porous lead electrodes of lead-acid
It has been demonstrated that an analysis of the open-circuit transients is useful for understanding several aspects of the alkaline iron electrodes. It provides diagnostic criteria for studying the effect of additives. ... -
A Study of electronic structure and semiconductor-metal transitions in perovskite oxides
In this chapter we discuss the semiconductor-metal transition in La???Sr?CoO?. We study the electrical resistivity, X-ray photoelectron spectroscopy (XPS), Ultraviolet photoelectron spectroscopy (UPS), Auger electron ... -
Computer simulation studies of ionic motion in nasicon-type superionic conductors
In summary, a new interionic potential function for Li? with the Zr?(PO?)? framework of the LiZr?(PO?)? system, consisting of three terms-Coulombic, repulsive, and charge-polarizability interaction-has been proposed. ... -
Studies on the synthesis, Structure and Properties of Amine - Templated Arsenate frameworks
Amine-templated open-framework gallium arsenates with one- (I), two- (II and IV) and three-dimensionally (III–V) extended structures have been isolated and characterized. The exclusive presence of only one type of SBU in ...