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, Wing Tak Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


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)9(η6-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-C6H6ligand 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)9(η6-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
Issue number1-2
Publication statusPublished - 1 Jan 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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