Browsing Division of Chemical Sciences by Title
Now showing items 144-163 of 1480
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Construction of Complex Polycyclic Systems using Gold Catalyzed Intramolecular Diyne/Enyne/ Hydroalkoxylation Reactions
(2018-07-18)First section of chapter 1 deals with gold catalyzed synthesis of ring fused furo[3,2,b]pyrans and furo[3,2,b]furans. Furo[3,2,b]pyrans and furo[3,2,b]furans are ubiquitous structural segments found in a number of natural ... -
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 ... -
Contributions to the chemistry of metal sulphide metal sulphate systems
The results show that sulphur trioxide acts as an oxidising agent in these reactions. It oxidises the sulphide to sulphate. During this process it is reduced to sulphur dioxide, and at higher temperatures (360–500?°C) even ... -
Contributions to the chemistry of phosphorus fluorine compounds and a few complex fluorides
The thesis incorporates the results of the investigations on (1) Oxidative reactions of sulphur trioxide, iodine monochloride and nitryl chloride with phosphorus trifluoride and thiophosphoryl fluoride, (2) Reactions of ... -
Contributions to the chemistry of sulphur flourine compounds
The present status of knowledge about the chemistry of sulphur oxyhalides and sulphur–nitrogen–fluorine compounds has been reviewed in the introductory chapter. With this background, the present investigations have been ... -
Contributions to the chemistry of thiophosphoryl fluoride
The present status of knowledge about the chemistry of thiophosphoryl fluoride has been reviewed in the introductory chapter. Taking this background into consideration, a line of investigation has been undertaken which is ... -
Controlled Nanoscale Growth of 2D Materials and Their Heterostructures
Unique ranges of properties of two dimensional (2D) materials foster new opportunities in many scientific and technological fields. Beyond pristine 2D materials, their heterostructures provide more possibilities in real ... -
Controlled Nucleation, Growth And Directed Assembly Of Nanocrystals With Engineered Interfaces For Applications
(2014-11-14)Controlling the morphology of nanocrystals provides provides a possible pathway to tune properties and hence has been explored in depth. However, to obtain a wider spectrum of properties or for multi-functionality. Other ... -
Controlling Conformation of Macromolecules by Immiscibility Driven Self-Segregation
(2018-05-09)Controlling conformation of macromolecules, both in solution and solid state, has remained an exciting challenge till date as it confronts the entropy driven random coil conformation. Folded forms of biomacromolecules, ... -
Controlling Conformation Of Macromolecules Using Non-Covalent Interaction And Micellization Behaviour Of Isomeric Phenyl Bearing Cationic Surfactants
(2013-06-24)This thesis contains investigations in two different areas, described under six chapters. Chapter 1 contains a broad introduction to the area of foldamers, while Chapters 2, 3, 4, and 5 deal with various novel classes of ... -
Controlling Stereochemistry at the Quaternary Center using Bifunctional (THIO)Urea Catalysis
(2018-06-05)The thesis entitled “Controlling Stereochemistry at the Quaternary Center Using Bifunctional (Thio)urea Catalysis” is divided into five chapters. Chapter 1: Catalytic Enantioselective Construction of Quaternary Stereocenters ... -
Controlling The Conformation Of Polymers In Solution And Synthesis And Characterization Of 'Clickable' Polyesters
(2013-01-11)The thesis constitutes investigations from two distinct areas of research. One part deals with controlling and modulating the conformation of linear polymer in solution. Folding of a polymer chain has been achieved by ... -
Coordination chemistry of cyclotriphosphazenes
The coordination chemistry of cyclophosphazenes is of great interest from the point of view of developing synthetic strategies for anchoring transition metal moieties to P–N polymers that may function as supported catalysts. ... -
Coordination chemistry of lanthanides
Based on the studies on the lanthanide complexes of pyridine?1?oxide and its methyl?substituted derivatives, it has been concluded that the methyl substitution at the 4?position of the pyridine ring does not bring down the ... -
Copper (I) promoted allylic nucleophilic substitution: a synthetic and mechanistic study.
Abstract not available -
Copper-Azides : Syntheses, Structures and Magnetic Behavior
(2018-07-09)Extensive research work was carried out in past few decades to synthesize new compounds with extended structures by employing various organic linkers and metals. A large number of potential applications of these coordination ...