Preparation and molecular structures of some complexes containing C<sub>5</sub> chains期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Preparation and molecular structures of some complexes containing C₅ chains

Authors:	Michael I Bruce Brian W Skelton Natasha N Zaitseva

Affiliation:	^a Department of Chemistry, University of Adelaide, Adelaide, South Australia 5005, Australia ^b Department of Chemistry, University of Western Australia, Crawley, Western Australia 6009, Australia

Abstract:	Complexes containing a Co₃ cluster linked to SiMe₃, Au(PPh₃), W(CO)₃Cp and Fc groups by a C₅ chain have been prepared by elimination of AuBr(PR₃) (R=Ph, tol) in the reactions between Co₃(μ₃-CBr)(μ-dppm)(CO)₇ and {(R₃P)Au}CCCCX [X=SiMe₃, W(CO)₃Cp] or {(OC)₇(μ-dppm)Co₃}CCC{Au(PPh₃)} and FcCCI (X=Fc). Subsequent auro-desilylation of the SiMe₃ compound affords {(OC)₇(μ-dppm)Co₃}CCCCC{Au[P(tol)₃]}. Single-crystal X-ray structures of the W(CO)₃Cp, Au{P(tol)₃} and Fc complexes are reported. The C₅ chain shows little departure from a formal CCCCC fragment.

Keywords:	Carbon chains Tricobaltcarbon cluster Phosphine-gold(I) complexes
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