Electronic Thesis and Dissertation Repository

Degree

Master of Science

Program

Chemistry

Supervisor

John F. Corrigan

Abstract

The metal-halide complexes bearing monodentate N-heterocyclic carbenes [PdI2(iPr2-bimy)2], [NiI2(iPr2-bimy)2], [PdI2(nBu2-bimy)2] (trans-1) and [NiBr2(nBu2-bimy)2] (trans-2); bimy = benzimidazole-2-ylidene, react under mild conditions with Li[P(SiMe3)2], in a 1:1 ratio, to provide metal-halido-silylphosphido complexes [PdI(iPr2-bimy)2{P(SiMe3)2}](trans-3), [NiI(iPr2-bimy)2{P(SiMe3)2}](trans-4), [PdI(nBu2-bimy)2{P(SiMe3)2}] (trans-5) and [NiBr(nBu2-bimy)2{P(SiMe3)2}] (trans-6). The reaction of a dimeric gold(I) complex with a bidentate N-heterocyclic carbene, [Au2Cl2(nBu4-benzo(imy)2)]; benzo(imy)2 = benzobis(imidazole-2-ylidene), with Li[P(SiMe3)2], in a 1:2 ratio, results in the formation of the metal-bis(trimethylsilyl)phosphido complex [Au2(nBu4-benzo(imy)2){P(SiMe3)2}2] (7).

The carbonyl addition reactions with the metal-halido-silylphosphido complexes trans-3 and trans-4, with benzoyl chloride is also studied wherein, they lead to the formation of two new metal-halido-dibenzoylphosphido complexes, [PdI(iPr2-bimy)2P{C(O)Ph}2] (trans-8) and [NiI(iPr2-bimy)2P{C(O)Ph}2] (trans-9). NMR spectroscopy, X-ray crystallography, mass spectrometry and elemental analysis are used to analyze these coordination complexes.

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