Browsing Division of Chemical Sciences by Title
Now showing items 423-442 of 1480
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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 ... -
High Capacity Porous Electrode Materials of Li-ion Batteries
(2017-12-12)Lithium-ion battery is attractive for various applications because of its high energy density. The performance of Li-ion battery is influenced by several properties of the electrode materials such as particle size, surface ... -
High-Resolution Charge Density Studies on Electronic Nature of Weak Interactions and Correlation of Molecular Conformation with Packing in Solid State
The thesis entitled “High-Resolution Charge Density Studies on Electronic Nature of Weak Interactions and Correlation of Molecular Conformation with Packing in Solid State” consist of five chapters. Chapter 1 is a brief ... -
Higher-Order Assembly of Protein Protected Gold Nanoclusters using Supramolecular Host-Guest Chemistry: A 40% Absolute Fluorescence Quantum Yield
For the last few decades, cancer has been one of the major public health concerns, and the mortality rate has become significant worldwide. However, because of the blessing of science, the early detection of tumors and the ... -
Highly Reactive Ru(II) Complexes Stabilized by Agostic Interaction/N2 Binding: Small Molecule Binding and Utility in Hydrogenation Catalysis
Binding and activation of chemically inert and strong sigma H−X bonds (X = H, B, Si, C) in small molecules such as H2, H3B.NR3, HSiR3, and CH4 have been the subject of intense research interest. The binding of a small ... -
Homo-and Hetero-Metallic Supramolecular Assemblies : Synthesis, Structures and Characterization
(2018-04-03)The work highlighted in this dissertation comprises of syntheses and characterizations of coordination driven supramolecular compounds. The synthesized complexes are characterized by IR spectroscopy, multinuclear NMR ... -
Host guest chemistry of a functionalized layered double hydroxide
Three representative NSAID molecules, Ibuprofen, Diclofenac, and Indomethacin, have been included within the galleries of the anionic clay, Mg-Al LDH, by ion-exchange intercalation. These hybrid materials have been identified ... -
Host-Guest Chemistry of Water-Soluble Coordination Cages and their Applications
Host-guest interactions are key to enzyme-substrate recognition, where the enzyme acts as a host, providing a specific cavity for the guest to bind. Inspired by host-guest interactions observed in nature, a significant ... -
Hybrid Nanostructured Materials from Bile Acid Derived Supramolecular Gels
(2018-06-13)Research activities towards the self-assembly of small organic molecules building blocks which lead to form supramolecular gel has increased extensively during the past two decades. The fundamental investigations of the ... -
Hydrophobicity and Composition-Dependent Anomalies in Aqueous Binary Mixtures, along with some Contribution to Diffusion on Rugged Energy Landscape
(2018-01-28)I started writing this thesis not only to obtain a doctoral degree, but also to compile in a particular way all the work that I have done during this time. The articles published during these years can only give a short ...