Fischer and N-heterocyclic carbene complexes of Group (VII) transition metals
type: CreativeWork
description: English: The synthetic methodology, structure characteristics and catalytic application of Fischer- and N-heterocyclic carbene (NHCs) complexes of the group VII transition metals were investigated. By using density function theory calculations, the structural and electronic parameters could be elucidated and the fundamental bonding interactions between the carbene ligands and transition metals defined. The bonding definition provided a platform for the comparison of different carbene-metal bonding interactions, an area of research that has been historically misunderstood. Finally, application prospects for both the Fischer- and N-heterocyclic carbene complexes were explored. Both dimetallic Fischer carbene complexes and NHCs containing the cymantrenyl moiety illustrated possible catalytic activity in the dimerization of thiols. Using DFT calculations, the plausible mechanism and energy cycle for the catalytic activity were postulated. Sepedi: Mokgwa wa sintektiki, diponagalo tša sebopego le tirišo ya catalytic ya Fischer- le N-heterocyclic carbene (NHCs) tša dimetale tša phetogo ya sehlopha sa VII di ile tša nyakišišwa. Ka go šomiša dipalo tša teori ya mošomo wa segokanyipalo, ditekanyetšo tša sebopego le tša elektroniki di be di ka hlathollwa gomme ditirišano tša motheo tša kgokagano magareng ga dilitšente tša carbene le ditšhipi tša phetogo di hlalošitšwe. Tlhaloso ya kgokagano e file sekgoba sa go bapetša ditirišano tše di fapanego tša kgokagano ya khabene-metale, e lego lefelo la nyakišišo leo le sa kwešišwego gabotse go ya ka histori. Mafelelong, ditebelelo tša tirišo ya bobedi dikomponi tša khapine tša Fischer- le N-heterocyclic di ile tša hlahlobja. Bobedi ditlhakatlhakano tša methaliki wa khapine ya Fischer le di-NHC ye e nago le karolo ya simanthrenili e bontšhitše kgonego ya mošomo wa khathalistiki ka go e tswakanya le thiols. Ka go šomiša dipalo tša DFT, mokgwa wo o kwagalago le modikologo wa maatla bakeng sa mošomo wa khathalithiki di ile tša akanyetšwa …
abstract: English: The synthetic methodology, structure characteristics and catalytic application of Fischer- and N-heterocyclic carbene (NHCs) complexes of the group VII transition metals were investigated. By using density function theory calculations, the structural and electronic parameters could be elucidated and the fundamental bonding interactions between the carbene ligands and transition metals defined. The bonding definition provided a platform for the comparison of different carbene-metal bonding interactions, an area of research that has been historically misunderstood. Finally, application prospects for both the Fischer- and N-heterocyclic carbene complexes were explored. Both dimetallic Fischer carbene complexes and NHCs containing the cymantrenyl moiety illustrated possible catalytic activity in the dimerization of thiols. Using DFT calculations, the plausible mechanism and energy cycle for the catalytic activity were postulated. Sepedi: Mokgwa wa sintektiki, diponagalo tša sebopego le tirišo ya catalytic ya Fischer- le N-heterocyclic carbene (NHCs) tša dimetale tša phetogo ya sehlopha sa VII di ile tša nyakišišwa. Ka go šomiša dipalo tša teori ya mošomo wa segokanyipalo, ditekanyetšo tša sebopego le tša elektroniki di be di ka hlathollwa gomme ditirišano tša motheo tša kgokagano magareng ga dilitšente tša carbene le ditšhipi tša phetogo di hlalošitšwe. Tlhaloso ya kgokagano e file sekgoba sa go bapetša ditirišano tše di fapanego tša kgokagano ya khabene-metale, e lego lefelo la nyakišišo leo le sa kwešišwego gabotse go ya ka histori. Mafelelong, ditebelelo tša tirišo ya bobedi dikomponi tša khapine tša Fischer- le N-heterocyclic di ile tša hlahlobja. Bobedi ditlhakatlhakano tša methaliki wa khapine ya Fischer le di-NHC ye e nago le karolo ya simanthrenili e bontšhitše kgonego ya mošomo wa khathalistiki ka go e tswakanya le thiols. Ka go šomiša dipalo tša DFT, mokgwa wo o kwagalago le modikologo wa maatla bakeng sa mošomo wa khathalithiki di ile tša akanyetšwa …
language: en
keywords: UCTD
date published: 2016
date modified: 2026-07-24T03:52:50Z
provider: University of Pretoria
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Pretoria

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property ID: Handle
value: http://hdl.handle.net/2263/59106