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      Conversion of C≡C to CO in alkynyl-metal complexes: oxidation of carbon chains capped by carbon-tricobalt clusters

      Bruce, Michael I.; Humphrey, Paul A.; Zaitseva, Natasha N.; Nicholson, Brian K.; Skelton, Brian W.; White, Allan H.
      DOI
       10.1039/C002997C
      Link
       pubs.rsc.org
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      Citation
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      Bruce, M.I., Humphrey, P.A., Zaitseva, N.N., Nicholson, B.K., Skelton, B.W. & White, A.H. (2010). Conversion of C≡C to CO in alkynyl-metal complexes: oxidation of carbon chains capped by carbon-tricobalt clusters. Dalton Transactions, 39(37), 8801-8811.
      Permanent Research Commons link: https://hdl.handle.net/10289/4661
      Abstract
      Treatment of Co₃(μ₃-CC≡CR)(μ-dppm)(CO)₇ with O₂ (air) in the presence of [FcH]PF₆ afforded Co₃{μ₃-CC(O)R}(μ-dppm)(CO)₇ by the formal conversion –C≡C– + O–O → >C–O + C≡O. In this way, complexes with R = Ph, Fc, and W(CO)₃Cp, bis-clusters {Co₃(μ-dppm)(CO)₇}₂{μ₃:μ₃-[≡C(O)(C≡C)C≡]}, {Co₃(μ-dppm)(CO)₇}₂{μ₃:μ₃-[≡C(O)(C≡C)xC(O)C≡]} (x = 1, 2), and {Co₃(μ-dppm)(CO)₇}₂{μ₃:μ₃-[≡CC(O)C≡CC₆H4C≡CC(O)C≡]}, and heterometallic bis-clusters {Co₃(μ-dppm)(CO)₇}{μ₃:μ₃-[≡CC(O)C≡CC≡]}{M₃(μ-H)₃(CO)₉} (M = Ru, Os) have been prepared. Single-crystal XRD structure determinations of several products are reported together with that of precursor {Co₃(μ-dppm)(CO)₇}₂{μ₃:μ₃-[≡C(C≡C)₂C₆H₄(C≡C)₂C≡]}.
      Date
      2010
      Type
      Journal Article
      Publisher
      The Royal Society of Chemistry
      Collections
      • Science and Engineering Papers [3124]
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