Reaction of the dinuclear cobalt complex [Co2{μ-PPh2HCHC(O)CHCHPPh2(CO) 4]with two-electron donor ligands; the stabilisation of cobalt-alkene bonds by incorporation of alkenes into a bridging diphosphine ligand

Martin J. Mays, Paul R. Raithby, Moira Ann Rennie, Vallipuram Sarveswaran, Gregory A. Solan

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The thermal reaction of [Co2{μ-PPh2HCHC(O)CHCHPPh2)(CO)4] (2) with two-electron donor ligands, L, leads to the mono-and bis-substituted complexes [Co2(μ-PPh2CHCHC(O)CHCHPPh2}(CO) 3(L)] (L = PPhMe2 (3a), PPh2H (3b), P(OMe)3 (3c), CN'Bu (3d)) and [Co2{μ,-PPh2HCHC(O)CHCHPPh2}(CO) 2(L)2 (L = PPhMe2 (4a), PPh2H (4b), P(OMe)3 (4c), CN'Bu (4d)), in which CO groups rather than bound alkenes have been displaced from the metal centres. Single crystal X-ray diffraction has been used to determine the structure of [Co2(μ-PPh2CHCHC(O)CHCHPPh2}(CO)2(PPhMe2)2] -0.25[C6H14] (4a) (which crystallises in the monoclinic space group P2,/c with a = 15.932(2),b= 12.608(4),c = 23.847(3) Å, β= 98.87(3)°,Z=4).

Original languageEnglish
Pages (from-to)186-192
Number of pages7
JournalInorganica Chimica Acta
Volume277
Issue number2
DOIs
Publication statusPublished - 3 Aug 1998

Keywords

  • Alkene complexes
  • Cobalt complexes
  • Crystal structures
  • Dinuclear complexes
  • Diphosphine complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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