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

doi:10.1002/anie.200905366

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

Research output: Contribution to journal › Article › peer-review

63 Citations (Scopus)

Abstract

(Chemical Equation Presented) Seeing O: Mn Kβ_2,5 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 language	English
Pages (from-to)	800-803
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	49
Issue number	4
DOIs	https://doi.org/10.1002/anie.200905366
Publication status	Published - Jan 18 2010

Keywords

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

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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Direct detection of oxygen ligation to the Mn₄Ca cluster of photosystem II by X-ray emission spectroscopy. / Pushkar, Yulia; Long, Xi; Glatzel, Pieter; Brudvig, Gary W.; Dismukes, G. Charles; Collins, Terrence J.; Yachandra, Vittal K.; Yano, Junko; Bergmann, Uwe.

In: Angewandte Chemie - International Edition, Vol. 49, No. 4, 18.01.2010, p. 800-803.

Research output: Contribution to journal › Article › peer-review

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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.",

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AU - Collins, Terrence J.

AU - Yachandra, Vittal K.

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AU - Bergmann, Uwe

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