Browsing Division of Chemical Sciences by Title
Now showing items 416-435 of 1498
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Geochemistry of the alkali feldspars and orgin of gold-quartz veine the prccambrain of s-e Mysore
Abstract not available -
Geology Geochemistery and Mineralogy of Mafic-Ultramafic, Gneissic and cordierite Gneiss Enclaves of the south- eastern sector karnataka craton.
This study attempts to decipher the relationships that may exist among the major crustal components in the Eastern Block of Karnataka Craton. Field traverses were undertaken to study the little-known enclaves of (a) ... -
Geology, geochemistry and sulphide minerization in chitradurga greenstone belt, dharwar cration, southern indian shield
Chitradurga Greenstone Belt is one of the prominent and well-preserved Archaean (> 2.6 b.y.) crustal segments of the Dharwar Craton. The rock formations of the belt lie over a 3 b.y. old gneissic foundation (Peninsular ... -
Graphene based materials : Mechanistic insights into corrosion inhibition and supercapacitance
In the contemporary scenario, protecting metals and alloys from deterioration through the coating is the main concern that extracts worldwide attention. Although existing coating processes and methods such as epoxy ... -
Graphene Nanostructures : A Theoretical Study Of Electronic, Magnetic And Structural Properties
(2014-09-26)Graphene is a single layer of carbon atoms arranged in honeycomb lattice. Over a long period of time it was treated as a hypothetical material to understand the properties of other allotropes of carbon, such as graphite, ... -
Graphite Oxide And Graphite Oxide-Based Composites : Physicochemical And Electrochemical Studies
(2013-07-19)One of the major directions of research in the area of materials science is to impart multifunctionalities to materials. Carbon stands on the top of the list to provide various multifunctional materials. It exists in all ... -
Ground State Studies Of Strongly Correlated 2D Systems
(2013-02-14)The quest for obtaining higher Tc superconductivity led to the discovery of cuprates about 20 years ago. Since then, they continue to puzzle the scientific community with their bizarre properties like non-BCS superconductivity, ... -
Group III Nitride/p-Silicon Heterojunctions By Plasma Assisted Molecular Beam Epitaxy
(2015-07-24)The present work focuses on the growth and characterizations of GaN and InN layers and nanostructures on p-Si(100) and p-Si(111) substrates by plasma-assisted molecular beam epitaxy and the studies of GaN/p-Si and InN/p-Si ... -
Group III-Nitride Epi And Nanostructures On Si(111) By Molecular Beam Epitaxy
(2014-11-18)The present work has been focused on the growth of Group III-nitride epitaxial layers and nanostructures on Si (111) substrates by plasma-assisted molecular beam epitaxy. Silicon is regarded as a promising substrate for ... -
Group III-Nitride Epitaxial Heterostructures By Plasma-Assisted Molecular Beam Epitaxy
(2016-04-18)Group III-nitride semiconductors have received much research attention and witnessed a significant development due to their ample applications in solid-state lighting and high-power/high-frequency electronics. Numerous ... -
Growth and Characterization of Single crystalline VO2 Heterostructures
Vanadium dioxide is a strongly correlated material with a temperature driven metal-to-insulator transition (MIT) near room temperature (~340 K). This electronic transition is accompanied by a structural transition from ... -
Growth Kinetics And Electronic Properties Of Semiconducting Nanocrystals In The Quantum Confined Regime
(2009-03-04)Properties of nanocrystals are extremely sensitive to their sizes when their sizes are smaller or of the order of the excitonic diameter due to the quantum confinement effect. The interest in this field has been concentrated ... -
Guest Induced Structural Transformations of Coordination Cages and their Role in Mediating Chemical Conversions
Enzymes utilize several non-covalent interactions to perform catalytic reactions within small cavities. Coordination driven self-assembly has been found to be the simplest approach for constructing artificial enzyme ... -
Halogen Bonding in the Structure and Biomimetic Dehalogenation of Thyroid Hormones and Halogenated Nucleosides
(2018-06-18)Thyroid hormones, which are secreted by the thyroid gland, are one of the most important halogenated compounds in the body. Thyroid hormones control almost every processes in the body including growth, body temperature, ... -
Harnessing Strained Systems: Arynes, Donor Acceptor Cyclopropanes, and Bicyclobutanes in Annulations, Multicomponent Couplings and Insertion Reactions
More than a century ago, the discovery of aryne intermediates proved to be a valuable addition to the toolkit of organic chemists, enabling the synthesis of a diverse range of molecules using these electrophilic ... -
Harvesting Solar Photon Using TiO2-CdS Nanostructured Semiconductor Assemblies
Abstract The present Thesis discusses various Titanium dioxide (TiO2) - Cadmium Sulfide (CdS) assemblies for efficient harvesting of the solar photon. Inorganic semiconductor nanocrystals such as CdS have attracted ... -
HBS Constrained Antiparallel β-Sheets and Flat Toroid Turns; Homoserine, Thioamide and 1,3-Thiazine Containing Peptidomimetics: Design, Synthesis, Conformational Analyses and applications
In chemical biology, short peptidomimetic biological active models have been widely used for anti-microbial activity, drug development, catalysis, and amyloidogenesis. In this thesis, I have synthesized several unnaturally ... -
Heterolytic activation of molecular hydrogen by transition metal complexes
New iron hydride complexes of the type trans-[(dppe)?Fe(H)(RCN)][BF?] (RCN = nitrile) with varying degree of ?-accepting ability of the nitrile moiety have been prepared and characterized. The protonation reactions of these ... -
Heterolytic Activation of the H-X (X=H,Si,B, and C) Bonds inSmall Molecules
The protonation reaction of trans-[Ru(H)(P(OMe)?)(dppe)?][OTf] 2.2 with HOTf led to the formation of 3 new dihydrogen complexes trans-[Ru(?²?H?)(P(OMe)???(OH)?)(dppe)?] (x = 0, 1, 2) which are characterized by their short ...