Mixed alkyne-arene-substituted carbonyl clusters; the crystal and molecular structure of OS4(CO)96-C6H6)(MeCCMe)

Hong Chen, Brian F.G. Johnson, Jack Lewis, Chi Keung Li, Catherine A. Morewood, Pual R. Raithby, M. Carmen Ramirez de Arellano, Wink Tak Wong

Research output: Contribution to journalArticlepeer-review

Abstract

Reaction of the alkyne-substituted cluster anion [Os3(CO)9(R1CCR2)]2- with the cation [Os(η6-C6H6)(CH3CN)]2+ affords the neutral tetranuclear cluster Os4(CO)96-C6H6)(R1CCR2) (R1=R2=Me (1a); R1=Me, R2=Ph (1b); R1=R2=Ph (1c)). The structure of 1a has been confirmed by a single-crystal X-ray analysis. The metals adopt a 'butterfly' geometry with the alkylenic CC vector parallel to the 'hinge' vector of the 'butterfly', and the η6-C6H6 ligand occupies a terminal site on one of the 'wingtip' Os atoms. Complexes 1a and 1b may also be prepared by the reaction of the activated arene cluster Os4H2(CO)96-C6H6)(CH3CN) with MeCCMe and MeCCPh, respectively. Under similar reaction conditions, with PhCCPh, the arene and acetonitrile ligands are substituted by the alkyne to give the known complex Os4H2(CO)9(PhCCPh)2 (2c).

Original languageEnglish
Pages (from-to)177-181
Number of pages5
JournalInorganica Chimica Acta
Volume213
Issue number1-2
DOIs
Publication statusPublished - 1 Nov 1993

Funding

We are grateful to the Croucher Foundation for a fellowship( C.-K.L.) andt he Hong Kong ResearchG rant Council and the University of Hong Kong for funding (W.T.W.). We also thank the ORS, the Cambridge OverseasT rust and ICI for financial support (C.A.M.), the Sino-British Friendship Scholarship Scheme for funding( H.C.), andt he EuropeanE conomicC ommunity (Human Capital and Mobility Scheme) for a bursary (M.C.R.deA.).

FundersFunder number
EuropeanE conomicC ommunity
Integrated Cellular Imaging Core, Emory University
Croucher Foundation
University of Hong Kong
China Scholarship Council

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Inorganic Chemistry
    • Materials Chemistry

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