A palladium-oxo complex. Stabilization of this proposed catalytic intermediate by an encapsulating polytungstate ligand

J Am Chem Soc. 2005 Aug 31;127(34):11948-9. doi: 10.1021/ja054131h.

Abstract

A terminal Pd-oxo unit is reported. The unit is encapsulated in a cavity defined by two [A-alpha-PW9O34]9- units fused together by one [WO(OH2)]4+ center and forms from Pd(II) in buffered media in the presence of O2. Both X-ray diffraction and EXAFS data are consistent with a Pd-oxo bond distance of ca. 1.65 A. 17O NMR studies confirm that the solid-state structure is maintained in solution.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.
  • Retracted Publication

MeSH terms

  • Catalysis
  • Kinetics
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Oxidation-Reduction
  • Oxygen / chemistry*
  • Palladium / chemistry*
  • Tungsten Compounds / chemistry*
  • X-Ray Diffraction

Substances

  • Ligands
  • Tungsten Compounds
  • Palladium
  • Oxygen