Heterometallic Molybdenum−Gold and Tungsten−Gold Clusters, M3(CO)9(AuPPh3)3(μ-OEt)(μ3-OEt)2 (M = Mo, W)

Autor:	and Yuh S. Wen, Mei M. Chen, Shiow Y. Wang, ‡ Chih Ch'ing Yu, Kuan J. Lin, Jiann T. Lin, ‡ Ch'i Hsing Lo, Thamas Y. R. Tsai
Rok vydání:	1996
Předmět:	Inorganic Chemistry Diffraction Crystallography Valence (chemistry) chemistry Molybdenum Organic Chemistry Proton NMR chemistry.chemical_element Physical and Theoretical Chemistry Tungsten Isomerization Spectral line
Zdroj:	Organometallics. 15:2132-2136
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om950711j
Popis:	Treatment of [NMe4]3[M3(CO)9(μ-OEt)(μ3-OEt)2] (1, M = Mo; 2, M = W) with 3 equiv of (Ph3P)AuCl/TlPF6 affords M3(CO)9(AuPPh3)3(μ-OEt)(μ3-OEt)2 (3, M = Mo; 4, M = W) in 80% and 89% yields, respectively. The molecular structures of 3 and 4 have been determined by X-ray diffraction methods. Complexes 3 and 4 are isomorphous. Variable-temperature 31P{H} and 1H NMR spectra for 3, 4, and related complex [NMe4][W3(CO)9(Au2(μ-dppm))(μ-OEt)(μ3-OEt)2] (6) verify valence isomerization in these complexes at ambient conditions.
Databáze:	OpenAIRE
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