Towards models of the oxygen-evolving complex (OEC) of photosystem II: a Mn4Ca cluster of relevance to low oxidation states of the OEC

Evangelia S. Koumousi; Shreya Mukherjee; Christine M. Beavers; Simon J. Teat; George Christou; Theocharis C. Stamatatos

doi:10.1039/C1CC13770K

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Towards models of the oxygen-evolving complex (OEC) of photosystem II: a Mn₄Ca cluster of relevance to low oxidation states of the OEC†

Evangelia S. Koumousi,^a Shreya Mukherjee,^b Christine M. Beavers,^c Simon J. Teat,^c George Christou*^b and Theocharis C. Stamatatos*^ad

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Patras, 26500 Patras, Greece
E-mail: thstama@chemistry.upatras.gr
Fax: +30-2610-997118
Tel: +30-2610-996020

^b Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA

^c Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Mail Stop 2-400, Berkeley, USA

^d Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, P.O. Box 135, 54124 Thessaloniki, Greece

Abstract

Synthetic access has been achieved into high oxidation state Mn/Ca chemistry with the 4 : 1 Mn : Ca stoichiometry of the oxygen-evolving complex (OEC) of plants and cyanobacteria; the anion of (Et₃NH)₂[Mn^III₄Ca(O₂CPh)₄(shi)₄] has a square pyramidal metal topology and an S = 0 ground state.

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Article information

DOI: https://doi.org/10.1039/C1CC13770K
Article type: Communication
Submitted: 24 Jun 2011
Accepted: 26 Aug 2011
First published: 09 Sep 2011

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Chem. Commun., 2011,47, 11128-11130

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Towards models of the oxygen-evolving complex (OEC) of photosystem II: a Mn₄Ca cluster of relevance to low oxidation states of the OEC

E. S. Koumousi, S. Mukherjee, C. M. Beavers, S. J. Teat, G. Christou and T. C. Stamatatos, Chem. Commun., 2011, 47, 11128 DOI: 10.1039/C1CC13770K

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