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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Synthesis, reactivities and photochemistry of osmium-nitrido complexes /

Lam, Hon-wah. January 1990 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1991.
12

The reactions of osmium (VIII) in hydroxide medium

Geswindt, Theodore Earl January 2009 (has links)
Spectrophotometric techniques were used to elucidate the discrepancies surrounding the reduction of osmium tetroxide by several primary alcohols in a hydroxide matrix. In contrast to the documented literature, this reaction was observed to occur in two consecutive reaction steps. Geometrical and computational analysis of kinetic data revealed that the reaction proceeds by the following reaction model: Os(VIII) + RCH2OH Os(VI) + RCHO Os(VIII) + Os(VI) Os2(VII) k1 k+2 k-2 The conditional rate constants and molar extinction coefficients were calculated using custom written software. A hydride transfer mechanism, coupled with the synchronous removal of the hydroxyl proton of the alcohol, was postulated. The complexation between osmium(VIII) and osmium(VI) was investigated. Mole ratio titrations and mole fraction plots show that at pH 14.3 a 1:1 complexation occurs between osmium(VIII) and osmium(VI). The equilibrium constants and molar extinction coefficients calculated by these methods were found to be consistent with the parameters obtained from the reduction of osmium tetroxide by primary alcohols at pH 14.3. The formation of a mixed oxidation state dimeric osmium complex (denoted Os2(VII)) has been proposed. Key words: Spectrophotometric techniques, osmium tetroxide, osmium(VIII), primary alcohols, osmium(VI).
13

Radioactive decay of Os¹⁸⁸⁺a /

Kalyan-Masih, Wilson William January 1961 (has links)
No description available.
14

Specific single-site osmium(VI) heavy-atom labelling of yeast tRNATyr, the relative rate retardation effects of some organic bases on the glycol exchange reaction of the Os(VI)oxy·thymidine glycol·bipyridyl complex, and isolation of... /

Midden, William Robert January 1978 (has links)
No description available.
15

Aspects of the chemistry of some osmium-containing clusters

Al-Mandhary, Muna R. A. January 1994 (has links)
No description available.
16

The chemistry of osmium-palladium carbonyl clusters

陳雁菁, Chan, Suzanna. January 1995 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
17

Syntheses, electrochemistry and photophysical and photochemical properties of some high-valent oxo, nitrido and amido complexes ofosmium

錢國輝, Chin, Kwok-fai. January 1995 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
18

The chemistry of mixed-metal clusters of osmium and palladium

許穎思, Hui, Wing-sze, Janesse. January 1998 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
19

The chemistry of tetraosmium carbonyl clusters

蔡雅然, Choi, Ya-yin. January 1998 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
20

The chemistry of hexa- and hepta- osmium carbonyl clusters

梁士賢, Leung, Sze-yin. January 1999 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy

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