EXAFS structural determination of the Pt2(P2O 5H2)44- anion in solution

Renske M. Van Der Veen, Christopher J. Milne, Van Thai Pham, Amal El Nahhas, Julia A. Weinstein, Jonathan Best, Camelia N. Borca, Christian Bressler, Majed Chergui

Research output: Contribution to journalArticlepeer-review


We present the first structural determination of the Pt2(P 2O5H2)44- anion in solution by analyzing the extended X-ray absorption fine structure (EXAFS) spectrum of the Pt LIII edge. The data could be fit with a simple model involving single and multiple scattering paths to near and far P-atoms, bridging O-atoms, and the other Pt-atom in the binuclear complex. A Pt-Pt distance of 2.876(28) Å and a Pt-P bond length of 2.32(4) Å are obtained. These values are in line with distances found in previous X-ray diffraction studies. The assignment of the EXAFS spectrum of the Pt 2(P2O5H2)44- anion in its ground state is required for future time-resolved X-ray absorption measurements with the goal of determining the structure and dynamics of the complex in the 1,3A2u excited states.

Original languageEnglish (US)
Pages (from-to)287-290
Number of pages4
Issue number4
StatePublished - 2008
Externally publishedYes


  • Diplatinum complexes
  • Molecular structures

ASJC Scopus subject areas

  • Chemistry(all)


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