Synthesis and reactions of terminal osmium and ruthenium complexed phosphinidenes [(η6-Ar)(L)M=PMes*]

Arjan T. Termaten, Tom Nijbacker, Marius Schakel, Martin Lutz, Anthony L. Spek, Koop Lammertsma

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)


Novel, very stable ruthenium and osmium containing terminal phosphinidene complexes [(η6-Ar)-(L)M=PMes*] (Ar=benzene, p-cymene; L = PR3, CO, and RNC) have been prepared by dehydrohalogenation of novel [(η6-Ar)MX2(PH2Mes*)] complexes in the presence of a stabilizing ligand. X-ray crystal structures are reported for [(η6-C6H6)(PPh3)Ru= PMes*] (9) and [(η6-pCy)(PPh3)Os=PMes*] (4). Dehydrohalogenation in the absence of a stabilizing ligand resulted in the new P-spiroannulated Ru2P2-ring structure 16. Dehydrohalogenation in the presence of but-2-yne gave a novel phosphaallyl complex [(η6-Ar)Ru(η3-R2PC- (Me)CHMe)] 26, for which an X-ray crystal structure is reported. The mechanism by which 16 and 26 are obtained is presumed to involve the intermediate formation of the 16-electron (η6-benzene)Ru=PMes* phosphinidene complex.

Original languageEnglish
Pages (from-to)2200-2208
Number of pages9
JournalChemistry - A European Journal
Issue number10
Publication statusPublished - 23 May 2003
Externally publishedYes


  • Heterocycles
  • Metallacycles
  • Osmium
  • P ligands
  • Phosphorus
  • Ruthenium

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry


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