Division of Chemical Sciences: Recent submissions
Now showing items 121-140 of 1275
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Studies in terpenns dyhydrogenation studies of abietic acid woth tetrachloro-o-Benzo quinone and a novel route
The thesis entitled "Studies in Terpenes - Dehydrogenation studies of abietic acid with tetrachloro-o-benzoquinone and a novel route to the synthesis of (I) methyl dehydroabietate and (II) methyl 13-methoxydeisopropyldeh ... -
Studies on black damar
The work embodied in this thesis has been broadly classified into four chapters. Chapter I contains a short introduction to the natural resins and resin oils, briefly summarizing their history and romantic establishment ... -
Supramolecular assemblies of bile acid derivatives
In the early literature, self-associative behaviors of bile acids and bile acid salts were known. Owing to their amphiphilic nature, bile acids can form supramolecular self-assemblies in the form of micelles, helical ... -
Studies on Advanced Soluble Lead Redox Flow Batteries: Concepts to Contexts
Redox flow batteries (RFBs) offer to make renewable energy storage more affordable, alongside accelerating opportunities for utility-scale development of solar/wind energy storage. Redox flow batteries (RFBs) have many ... -
Tuning Electrical and Thermoelectric Properties of Molecular Junctions by External Stimuli: From Monolayers of Molecules to Amorphous Polymer Thin Films
Molecular electronics explores electronic functionality at the sub-nanometer scale by utilizing individual molecules as active components. The molecules provide unique advantages such as extreme miniaturization, chemical ... -
Synthesis, Structure, and Properties of Inorganic Oxides
A wide variety of oxide materials (based on rock salt, spinel, corundum, perovskite, garnet, and pyrochlore) have highly adaptable structures, and their properties can easily be modified by suitable substitutions at various ... -
Disulphonamides of aryl and aralkyl disubstituted amines and hydrazines
The present thesis consists of four parts. They deal with the synthesis of the disulphonamides of diphenylamine, phenylbenzylamine, dibenzylamine, diphenylhydrazine and dibenzylhydrazine and their starting materials. Part ... -
Studies in sulphanilamides
The present thesis consists of three parts (each part being divided into further sub-sections) preceded by a General introductory article on “Sulphonamides”. Under the heading of “Sulphonamides” various aspects of problems ... -
Isolation of anthracene phenanthrene and carbazole from anthracene oil from Indian source
Anthracene oil was first distilled in a single lot up to 360°C, and the total quantity of solids that separated out on cooling at ordinary temperature (room temperature), and on cooling at 0°C for a week and for a month ... -
On new sulphanilamide drugs : N1-substituted sulphanilamide derivatives of S-alkylisothioureas and S-alkylisothiosemicarbazides
The present thesis consists of three parts, all of them dealing generally with synthetic drugs consisting of N?-substituted sulphanilamide derivatives of S-alkyl-isothioureas and S-alkyl-isothiosemicarbazides. Part I This ... -
Density matrix renormalization group studies of low-dimensional magnetic systems and conjugated polymers
To conclude, we have performed symmetrized DMRG calculations on the extended Hubbard–Peierls model. We have presented the dependences of exciton binding energy both on alternation ? and nearest-neighbor interaction parameter ... -
Extensions of mode coupling theory to study diffusion and viscosity and applications to chemical dynamics
In this chapter, the existing mode coupling theory [14] has been extended to calculate the diffusion of a tagged molecule and to study the dynamics of a neat liquid. It has been shown that in the earlier theory the definition ... -
Studies on the ionic conduction in metal oxides and composite electrolytes with a supplementary study of the dielectric properties of some novel oxides of the Aurivillius family
The present investigation suggests that the charge-carrier concentration in the composites exhibiting conductivity enhancements is as high as in a fast-ion conductor. The study also proves that both morphology and particle ... -
Slow dynamics in binary and polydisperse liquids : mode coupling theory and computer simulation studies of diffusion, density relaxation and composition fluctuation
Isothermal–Isobaric (NPT) Ensemble Molecular Dynamics Simulations of Composition Fluctuations and Diffusion in Binary Mixtures In this chapter, isothermal–isobaric (NPT) ensemble molecular dynamics simulations have been ... -
Theoretical study of the linear and nonlinear optical properties of conjugated systems
Hyperpolarizabilities of conjugated ?-electron systems within and correlated Pariser–Parr–Pople (PPP) Hamiltonian have been studied. The polarizabilities of polyenes have been used to estimate the shift in optical gaps in ...