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Reactions of sodium tetrahydroborate with metal ions in the presence of nitrogen donor ligands
(1977, c197)The work described in this thesis is part of an ongoing effort in these laboratories to determine in more detail how a variety of factors, particularly the nature of added ligands, affects the type of products and the ... -
Reactivity and mechanistic study of the Sonogashira coupling and Grignard-Sonogashira coupling reactions
(2002)The interest in studying enediyne systems was stimulated by the discovery of anti-cancer agents containing enediyne functionalities, such as esperamicin and dynemicin. These compounds have potential for use as anti-tumour ... -
Reactivity study of the palladium cross-coupling synthesis of enediynes
(1999)A reactivity study looking at various aspects of the palladium catalyzed (Sonogashira) reaction for die synthesis of enediynes was performed. Alkynes were coupled to 1,2- dichloro-, 1,2-dibromo- and 1,2-diiodobenzene. ... -
Relaxation processes in polystyrene matrices
(1977)Dielectric absorption of aromatic and aliphatic molecules containing the rotatable substituent group and of some analogous rigid molecules in $olutions of polar solutes dispersed in an atactic polystyrene matrix are ... -
Relaxation processes of polar molecules in some organic glasses
(1982)Dielectric absorption studies of a variety of polar solutes containing rotatable groups and of some analogous rigid molecules dispersed in (i) an atactic polystyrene matrix, (ii) glassy o-terphenyl and polyphenyl ether ... -
Ruthenium half-sandwich complexes containing novel anionic (phosphino) tetraphenylborate ligands
(2009)In an attempt to expand upon previous work involving ruthenium-arene complexes bearing anionic (phosphino) tetraphenylborate ligands, and possibly provide further insight into the products obtained, a series of metal ... -
Ruthenium piano stool complexes incorporating novel bis(pyrrolidinyl)alkylphosphines
(2012-11-10)Conventional phosphine ligands (i.e., those typically bearing alkyl and/or aryl substituents) have played a crucial role in the development of transition metal coordination chemistry. Many structural and electronic variants ... -
Ruthenium-Tris(Pyrazolyl)methane complexes as potential candidates for cancer chemotherapy agents
(2009)The MeCN ligands of complex 1 were substitutionally inert, however, under forcing conditions the DMSO ligands of complex 2 were displaced by chelating 1,2-bis(diphenylphosphino)ethane to produce complex 6. Structural ... -
Self-assembled thin films of thiocyanate and selenocyanate bithiophenes
(2015-06-15)Presented herein is the organic synthesis and thin film (TF) assembly of six alkyl-substituted thiocyante and selenocyante bithiophene molecules: NCSe-T2-Hx, NCS-T2-Hx, NCS-Hx-T2-Hx, NCSe- Hx-T2-Hx, NCS-Hx-T2-Hx-SCN and ... -
Some dielectric and spectroscopic studies on hydrogen bonding
(1984)Dielectric relaxation studies were carried out principally on some hydroxy compounds (e.g., phenols) and some carboxylic acids in polystyrene (PS) matrices and, in some cases, in compressed solids (CS). The hydroxy compounds ... -
Some dielectric studies
(1969)Two methods of approach are current in the literature for the interpretation of dielectric relaxation. One is that due to Debye which assumes that the relaxation process has its origin in the retardation of molecular ... -
Some dielectric studies of molecular and intramolecular motions
(1978)Dielectric relaxation studies of a series of polar diaryl molecules and of some analogous rigid molecules dispersed in atactic polystyrene and poly(vinyltoluene) have been carried out. Preparation of both polymer matrices ... -
Some dielectric studies of molecular and intramolecular relaxation processes
(1984)Dielectric relaxation studies of some potential systems involving molecular interaction particularly intermolecular and/or intramolecular hydrogen bonding as well as of some related molecules have been carried out in ... -
Some relaxation studies of molecular and intramolecular motions in glassy o-terphenyl
(1982)In this work, the results of dielectric studies carried out on a number of molecules of the general form y [symbol] x are presented. These molecules have been studied mainly in two forms: as solutions of glassy o-terphenyl, ... -
Some ring expansions and related reactions of the phosphole system
(1970)The chemistry of simple phosphole derivatives is comprehensively reviewed to the early part of 1970. Using 1,2,5-triphenylphosphole and some of its derivatives as starting materials, several ring expansion and related ... -
Some studies of dielectric relaxation
(1973)A general correlation function is firstly reviewed in line with Kubo's formulation (Chap. 1, (a)), and dielectric relaxation processes together with some fundamental properties are considered with the help of the function ... -
Speciation of aqueous hypercoordinated organosilicate complexes / by Jiali Wen.
(2007, c 20)Aqueous silicon chemistry plays a major and as yet unappreciated role in many fields of science. Emerging technologies such as the fabrication of biomimetic ceramics require a thorough understanding of all factors affecting ... -
The stereochemical impact of chiral ionic liquids on [2+2] photochemical cycloadditions and aldol reactions
(2020)Eight chiral ionic liquids have been prepared for use as solvents to test whether they can induce enantioselectivity in both photochemical [2+2] cycloadditions and aldol reactions using a variety of starting materials. ... -
Structural determinations by analytical analysis of 7-phosphanorbornadiene derivatives and amino acid enantiomers
(2000)The purpose of Chapter 1 is to create a bicyclic, two-coordinate phosphorus derivative in the form of a 2,3-benzo-l,4,5,6-tetraphenyl-7-phosphanorbomadiene anion and measure its experimental 3,P NMR chemical shift. This ...