Browsing Division of Chemical Sciences by Title
Now showing items 37-56 of 896
-
Bile Acid-Based Chiral Auxiliaries In Asymmetric Synthesis
(2012-12-10) -
Bile Salts in Supramolecular Chemistry: Synthesis of Fluorescent Nanoclusters, Oxide Nanoflowers, and Anion Effect on Metallogels
In summary, we have explored an interesting pH-dependent sensitization of Tb(III) using methyl salicylate (MS) as a sensitizer in aqueous media. Methyl salicylate was found to be a specific sensitizer for Tb(III) but not ... -
Binding, activation, and oxidative addition of dihydrogen using Ir-pincer systems and implications in hydrogenation catalysis
Binding of unreactive small molecules, such as H2, N2, CO2, CH4, etc. on a transition metal center and their subsequent activation are fundamental problems that have been extensively studied in organometallic chemistry for ... -
Bio-inspired Materials : Antioxidant and Phosphotriesterase Nanozymes
(2018-01-28)Bio-inspired or biomimetic chemistry deals with the replication of the nature’s fundamental processes, which can help in understanding the functioning of biological systems and develop novel applications. Although a large ... -
Biomimetic Studies On Anti-Thyroid Drugs And Thyroid Hormone Synthesis
(2009-05-22)Thyroxine (T4), the main secretory hormone of the thyroid gland, is produced on thyroglobulin by thyroid peroxidase (TPO)/hydrogen peroxide/iodide system. The synthesis of T4 by TPO involves two independent steps: iodination ... -
Biomimetic Studies on Tyrosine- and Phenolate- Based Ligands and their Metal Complexes
(2017-11-14)Tyrosine (4-hydroxyphenylalanine) is one of the naturally occurring 22 amino acids. The importance of tyrosine is due to the presence of its phenolic side chain. In biological systems, the tyrosyl residue in proteins is ... -
Blue and Red Shifting H-Bonding in X−H···Y(X=C, O: Y = O, N, S) Complexes: A Gas Phase FTIR and ab initio Study
Regular H-bonding is essential for sustenance of many chemical and biochemical processes and has been investigated thoroughly since its discovery in the 1920’s. However, experimental finding of blue shifting of X-H stretching ... -
Borate Based Glasses, Transparent Glass-Microcrystal Composites And Their Physical Properties
(2013-04-30)Transparent glasses embedded with ferroelectric/nonlinear optic crystallites have been in increasing demand as these exhibit promising physical properties. These could be fabricated in large sizes and shapes with high ... -
Building Upon Supramolecular Synthons : Some Aspects of Crystal Engineering
(2018-04-24)Crystal engineering offers a rational way of analyzing crystal structures and designing new structures with properties. The supramolecular synthon concept was introduced in 1995 and has shown versatility and utility in the ... -
C-H Bond Functionalization and Tandem Cyclization with Alkynoates and Maleimides Using Directing Group Strategy
The thesis presents manganese‒ and rhodium‒catalyzed C‒H bond activation and tandem cyclization reactions. These reactions lead to the construction of carbon‒carbon bonds using directing group strategy. The thesis is divided ... -
Carbon aerogel supported first-row transition metal catalysts for methanolyis of ammonia borane
Ni-Ni3B, Co-B, and Co-Ni-B nanocomposites decorated on carbon aerogel were successfully synthesized by adopting the solution impregnation method. The nanocomposites were characterized by powder XRD, transmission electron ... -
Carbon-Carbon and Carbon Heteroatom Bond Forming Reactions: From Organocatalysts to Quantum Dots
Butenolides containing stereogenic centers on the ring, are commonly encountered structural motifs, found in many natural products. Consequently, there has been considerable interest in efficient and stereoselective ... -
Catalytic Asymmetric Direct and Vinylogous Aldol, Michael and Alkylation Reactions
Pyrazoles and pyrazolones are a highly explored and privileged class of aza-heterocycles with a wide range of applications, thereby rendering a recurring interest in their synthesis and functionalization. Majority of the ... -
Catalytic Studies with Ru and Ir Half-sandwich Complexes Bearing NHC Ligands
The thesis describes the study of arene-tethered and untethered Ru half-sandwich complexes as catalysts in the addition of hydroelements (E‒H, E = H, B, Si) across unsaturated C-C, C-N and C-O bonds and transfer hydrogenation ... -
Charge and Heat Transport in Low-dimensional Quantum Systems
Transport of electrons through low-dimensional quantum conductors like nano-junctions has been actively pursued research area for the last few decades. Experimental studies on nano-junctions are nowadays routinely carried ... -
Charge-Transfer Associated Photoluminescence Of Rare-Earths Doped Oxide Phosphors
(2007-12-29)Luminescent materials can be found in a broad range of everyday applications. While in the seventies and eighties, the field of luminescent materials seemed to be fairly well covered, research in nineties has been revitalized ...