Global ETD Search

11	The chemistry of osmium-palladium mixed-metal nanoclusters and nanoparticles Yung, Ka-fu., 容家富. January 2003 (has links) published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Osmium compounds. Palladium alloys. Nanoparticles.
12	Reactivities of nitrido- and oxo-ruthenium(VI) and nitridoosmium(VI) complexes containing chelating multianionic ligands and 1,4,7-trimethyl-1,4,7-triazacyclonoane 陳沛明, Chan, Pui-ming. January 1999 (has links) published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Ruthenium compounds. Osmium compounds. Ligands.
13	Syntheses, structural characterization and electrochemistry of tetraosmium carbonyl clusters and catalytic properties of tetraosmium-gold mixed-metal clusters / Li, Yat. January 2002 (has links) Thesis (Ph. D.)--University of Hong Kong, 2002. / Includes bibliographical references.
14	The tethered aminohydroxylation of allylic carbamates Johnson, Peter David January 2003 (has links) The osmium-mediated aminohydroxylation reaction is a powerful oxidation that introduces a hydroxyl group and a protected amino group in a syn relationship across an olefinic double bond. This study concerns one approach to controlling the regioselectivity of this oxidation. Introduction I The mechanism, scope and limitations of the aminohydroxylation reaction are discussed, with particular attention to the asymmetric version, providing a background from which the newly developed methodology has emerged. Results and Discussion I Development of the reaction This section concerns the original attempts to perform the tethered aminohydroxylation reaction, and early process optimisation to maximise the yield of aminohydroxylated product produced. Scope of the reaction This section details the results of the TA reaction as applied to further allylic carbamates demonstrating the applicability of the reaction to other olefinic geometries. The diastereoselectivity of the reaction in cyclic and acyclic systems is reported, and a model to explain the observed results discussed. Also covered within are the syntheses of the various substrates and proof of the stereochemistry of the products. Mechanistic investigations Work involving attempts to isolate a catalytic intermediate from the reaction is described. A crystal structure of this intermediate is discussed. Introduction II The isolation and physiological properties of the antibiotic compound hygromycin A are described. Prior synthetic routes towards this compound are discussed. Results and Discussion II Three approaches towards the aminocyclitol unit of hygromycin A, employing the tethered aminohydroxylation reaction, are outlined. Two of these allow for potential future development and completion of the synthesis. 547.2 Osmium compounds : Alkenes : Oxidation
15	Reactivities of nitrido- and oxo-ruthenium(VI) and nitridoosmium(VI) complexes containing chelating multianionic ligands and 1,4,7-trimethyl-1,4,7-triazacyclonoane / Chan, Pui-ming. January 1999 (has links) Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references.
16	Synthesis, characterization and reactivities of bis(imido)-ruthenium(vi) and -osmium(vi) porphyrins / Au, Sze-man, Vanessa. January 1999 (has links) Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references.
17	Syntheses, characterization, electrochemistry and photochemical properties of some high-valent Oxo and Imido complexes of osmium andrhenium 鄭郁棋, Cheng, Yuk-ki. January 1997 (has links) published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Rhenium compounds. Osmium compounds. Electrochemistry. Photochemistry.
18	Syntheses, structural characterization and electrochemistry of tetraosmium carbonyl clusters and catalytic properties of tetraosmium-gold mixed-metal clusters 李軼, Li, Yat. January 2002 (has links) published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Electrochemistry Osmium compounds - Synthesis. Carbonyl compounds - Synthesis.
19	Photophysical and photochemical properties of oxo and nitrido complexes of osmium(VI) 林曉楓, Lam, Hiu-fung. January 2001 (has links) published_or_final_version / Chemistry / Master / Master of Philosophy Oxo compounds. Osmium compounds. Metal ions.
20	Synthesis, characterization and reactivities of bis(imido)-ruthenium(vi) and -osmium(vi) porphyrins 區詩敏{272b21}, Au, Sze-man, Vanessa. January 1999 (has links) published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Ruthenium compounds Osmium compounds. Porphyrins - Synthesis.

Search results