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On the reduction of rhodium trichloride in the presence of triisopropylphosphine

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Author(s)

  • D C D Butler
  • D W Bruce
  • P Lightfoot
  • D J Cole-Hamilton

Department/unit(s)

Publication details

JournalCANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
DatePublished - May 2001
Issue number5
Volume79
Number of pages7
Pages (from-to)472-478
Original languageEnglish

Abstract

The reduction of RhCl3. 3H(2)O by sodium amalgam in the presence of P-i-Pr-3 has been reexamined. Reaction of RhCl3. 3H(2)O with P-i-Pr-3 in THF gives i-Pr3PO and [RhHCl2(P-i-Pr-3)(2)] or [RhDCl2(P-i-Pr-3)(2)] if D2O is added. Further reaction of [RhHCl2(P-i-Pr-3)(2)] with P-i-Pr-3 gives [i-Pr3PH][RhHCl3(P-i-Pr-3)(2)], which reversibly dissociates to [RhHCl2(P-i-Pr-3)(2)] and [i-Pr3PH]Cl at high temperatures in solution. Sodium amalgam reduction of [RhHCl2(P-i-Pr-3)(2)] in THF containing P-i-Pr-3 gives [RhH(P-i-Pr-3)(3)] if water is rigorously excluded, but [RhH2Cl(P-i-Pr-3)(2)] if water is present.

    Research areas

  • rhodium, trisiopropylphosphine, hydride, reduction, PHOSPHINE COMPLEXES, ACTIVATION, HYDROGEN, WATER

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