NMR studies on the novel heterobimetallic complexes [M(dppm)(Ph(2)PCH(2)PPh(2)PPPP) {Pt(PPh3)2}]OTf (M = Rh, Ir) derived from the stepwise activation of white phosphorus

Magn Reson Chem. 2008:46 Suppl 1:S120-5. doi: 10.1002/mrc.2344.

Abstract

The solution structures of the novel heterobimetallic complexes [Ir(dppm)(Ph(2)PCH(2)PPh(2)PPPP){Pt(PPh(3))2}]OTf and [Rh(dppm)(Ph(2)PCH(2)PPh(2)PPPP){Pt(PPh(3))(2)}]OTf derived from the reaction of Rh and Ir--P(5) precursors with [Pt(C2H4)(PPh3)2] have been unambiguously assigned on the basis of 1H NMR and 31P{1H} NMR data. The results are in agreement with the regio-selective insertion of the {Pt(PPh3)2} moiety resulting in a new pentaphosphorus topology which agrees with the formal formation of a unique phosphonium(+)-tetraphosphabutadienide(2-) ligand.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Iridium
  • Ligands
  • Magnetic Resonance Spectroscopy / methods*
  • Organometallic Compounds / chemical synthesis*
  • Organophosphorus Compounds / chemical synthesis*
  • Phosphorus / chemistry*
  • Rhodium

Substances

  • Ligands
  • Organometallic Compounds
  • Organophosphorus Compounds
  • Phosphorus
  • Iridium
  • Rhodium