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Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium
Includes abstract.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Chemistry
2014
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| _version_ | 1867614023346814976 |
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| access_status_str | Open Access |
| author | Mushonga, Paul |
| author2 | Moss, John R |
| author_browse | Moss, John R Mushonga, Paul |
| author_facet | Moss, John R Mushonga, Paul |
| author_sort | Mushonga, Paul |
| collection | Thesis |
| description | Includes abstract. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/6348 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:45:27.026Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Chemistry |
| publisherStr | Department of Chemistry |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/6348 Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium Mushonga, Paul Moss, John R Haines, Raymond J Chemistry Includes abstract. Includes bibliographical references (leaves 26-29). Ligand-bridged dinuc1ear carbonyl compounds of ruthenium and osmium have been successfully prepared and characterised by various analytical and spectroscopic techniques. X-ray crystal structures have been determined for the osmium complexes [OS2(CO)4(p-02CCsH4FeCsHs)2L2] {L = PPh3 (102), py (103)}. Some of the complexes were then investigated for their catalytic activity in the oxidation of cyc10hexane and octane. In this work, hydrogen peroxide was used as an oxidant and acetonitrile as the solvent. A higher selectivity for the alcohol products over the ketones was observed. The average ratio of alcohols to ketones was found to be 4.56 and 1.76 for cyc10hexane and octane respectively. The complexes [OS2(CO)6(p-02CMeh] (4) [Ru(CO)2(p-02CMe)2]n (86), [Ru2( CO )4(p-02CMe )(p-dppm h] [PF 6] (117) and [Ru2( CO)4(p -( 02CMe h(MeCN)2] (118), were tested as homogeneous catalysts for the isomerisation of terminal alkenes. Complex 4 was inactive while the complex 118 gave a 100 % conversion. It is proposed that the catalysis proceeded via the displacement of one acetonitrile ligand from the metal centre providing a vacant site onto which the substrate coordinated. The redox behaviour of the four complexes [Ru2(CO)2(p-COh( 2014-08-13T14:27:36Z 2014-08-13T14:27:36Z 2008 Master Thesis Masters MSc http://hdl.handle.net/11427/6348 eng application/pdf Department of Chemistry Faculty of Science University of Cape Town |
| spellingShingle | Chemistry Mushonga, Paul Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| thesis_degree_str | Master's |
| title | Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| title_full | Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| title_fullStr | Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| title_full_unstemmed | Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| title_short | Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium |
| title_sort | ligand bridged dinuclear carbonyl compounds of rutheniun and osmium |
| topic | Chemistry |
| url | http://hdl.handle.net/11427/6348 |
| work_keys_str_mv | AT mushongapaul ligandbridgeddinuclearcarbonylcompoundsofrutheniunandosmium |