Study of the reactivity of the carbon-carbon triple bond in (CO)<inf>5</inf>MC(OEt)(CCPh) complexes (M Cr or W) towards [PPh<inf>4</inf>I[HFe<inf>3</inf>(CO)<inf>11</inf>] or [Co<inf>2</inf>(CO)<inf>8</inf>]: a ligand transfer reaction (Fe) or thermally induced build up of heterotrimetallic clusters (Co) bridged by the carbyne ligands C-C(OEt)CPhC(O)- or CCPhC(OEt)- C(O)-

Isabel Moldes, Josep Ros, M. Rosario Torres, Aurea Perales, René Mathieu

Research output: Contribution to journal › Article › Research › peer-review

11 Citations (Scopus)

Abstract

Complexes [(CO)5MC(OEt)(CCPh)] (M Cr (1a), W (1b)) react with [PPh4][HFe3(CO)11] to give [PPh4][Fe3(CO)9(μ3-η 3- C(OEt)CCHPh] by a ligand transfer reaction. Complexes 1a and 1b react with octacarbonyldicobalt to give [((CO)5MC(OEt)CCPh)Co2(CO)6] (M Cr(3a) or W (3b)), 3a being characterized by an X-ray structure determination. In boiling hexane, 3a and 3b rearrange to the clusters [MCo2(CO)7(μ-CO)2{μ3- η4-CC(OEt)CPhC(O)}](M Cr (4a) or W (4b)) partially characterized by an X-ray structure determination for 4a and their isomers [MCo2(CO)7(μ- O)2{μ3-η4-CCPhC(OEt)C(O)}] (M Cr (5a) or W (5b)) spectroscopically characterized. © 1994.
Original languageEnglish
Pages (from-to)219-223
JournalJournal of Organometallic Chemistry
Volume464
Issue number2
DOIs
Publication statusPublished - 25 Jan 1994

Keywords

  • Chromium
  • Cobalt
  • Iron
  • Tungsten

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