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      Alkynyl and poly-ynyl derivatives of carbon-tricobalt clusters

      Antonova, Alla B.; Bruce, Michael I.; Humphrey, Paul A.; Gaudio, Maryka; Nicholson, Brian K.; Scoleri, Nancy; Skelton, Brian W.; White, Allan H.; Zaitseva, Natasha N.
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      DOI
       10.1016/j.jorganchem.2006.08.004
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      Antonova, A.B., Bruce, M.I., Gaudio, M. Humphrey, P.A., Nicholson, B.K., Scoleri, N., Skelton, B.W., White A.H. & Zaitseva, N.N. (2006) Alkynyl and poly-ynyl derivatives of carbon-tricobalt clusters, Journal of Organometallic Chemistry, 691, 4694-4707.
      Permanent Research Commons link: https://hdl.handle.net/10289/143
      Abstract
      A series of alkynyl-tricobalt carbonyl clusters, Co₃(μ₃-CnR)(μ-dppm)(CO)₇ [R = But, Ph, C₆H₄I, C₆H₄C≡CPh, SiMe₃, Fc, Au(PPh₃)] containing three, five or seven carbons in the chain, have been prepared by elimination of phosphine–gold(I) halides in reactions between Co₃(μ₃-CBr)(μ-dppm)(CO)₇ and Au(C≡CR)(PPh₃) or between Co₃{μ₃-CC≡CAu(PR₃)} (μ-dppm)(CO)₇ (R = Ph, tol) and IC≡CR′ (R′ = SiMe₃, Fc). The use of poly-substituted arenes or ferrocenes has enabled preparation of the complexes 1,4-{(OC)₇(μ-dppm)Co₃ (μ₃-CC≡C)}₂C₆H₃X-5 (X = H, Br), 1,3,5-{(OC)₇(μ-dppm)Co₃(μ₃-CC≡C)}₃C₆H₃ and 1,1′-{(OC)₇(μ-dppm)Co₃ (μ₃-CC≡C)}₂Fc′ [Fc′ = Fe(η-C₅H₄-)₂]. The X-ray determined molecular structures of 12 of the complexes are reported.
      Date
      2006-04-01
      Type
      Journal Article
      Publisher
      Elsevier S.A.
      Rights
      This is an authors version of an article published in the, Journal of Organometallic Chemistry, (c) 2006 Published by Elsevier Science B.V.
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      • Science and Engineering Papers [3124]
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