Direct detection of oxygen ligation to the Mn4Ca cluster of photosystem II by X-ray emission spectroscopy

Yulia Pushkar, Xi Long, Pieter Glatzel, Gary W. Brudvig, G. Charles Dismukes, Terrence J. Collins, Vittal K. Yachandra, Junko Yano, Uwe Bergmann

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55 Citations (Scopus)

Abstract

(Chemical Equation Presented) Seeing O: Mn Kβ2,5 and Kβ″ X-ray emission spectra arise from transitions from the ligand 2s and 2p shells of the metal complexes to the metal 1s levels. In biological systems, it is difficult to specifically probe the O and N ligands. This spectroscopic technique is used to study the O ligands of the Mn4Ca cluster that catalyzes photosynthetic water splitting and allows direct detection for the first time of the bridging oxo groups of Mn.

Original languageEnglish
Pages (from-to)800-803
Number of pages4
JournalAngewandte Chemie - International Edition
Volume49
Issue number4
DOIs
Publication statusPublished - Jan 18 2010

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Keywords

  • Coordination modes
  • Manganese
  • Photosystem ii
  • Spectroscopic methods
  • X-ray emission spectroscopy

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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