A novel arene bonding mode in the mixed-metal cluster Os4Ru( μ-H)3(CO) 12( μ36-C6H5)P(OMe)3

R. A. Al-Mandhary Muna, Jack Lewis, Paul R. Raithby

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17 Citations (SciVal)


The ionic coupling of [Os4H2(CO)12]2- with [Ru(η6-C6H6)(MeCN)3]2- affords the neutral mixed metal cluster Os4Ru( μ-H)2(CO)126-C6H6) 1. The reaction of 1 with trimethylphosphite leads to the initial formation of the addition product Os4Ru( μ-H)2(CO)126-C6H6)P(OMe)3 2, but this complex rearranges in solution to give Os4Ru( μ-H)3(CO)1236-C6H5)P(OMe)3 3. An X-ray structure of 3 shows that the metal core of the cluster is a ruthenium-spiked Os4 tetrahedron, with one hydrogen atom from the arene having transferred to the Os4 core, and one arene carbon bridging an Os-Os edge, while the ring as a whole remains η6-bound to the Ru atom.

Original languageEnglish
Pages (from-to)247-250
Number of pages4
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - 1 Mar 1997

Bibliographical note

Funding Information:
We are grateful to the Government of the Sultanate of Oman and the Overseas Research Students Awards Scheme for financial support (to M.R.A.A.), and to Johnson Matthey plc for the generous loan of the osmium and ruthenium salts.


  • Arene
  • Crystal structure
  • Osmium
  • Phosphite
  • Ruthenium

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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