Manganese-calcium/strontium heterometallic compounds and their relevance for the oxygen-evolving center of photosystem II.

A review. Manganese-calcium and manganese-strontium heteronuclear compds. are of considerable current interest in the context of modeling the structure of the oxygen-evolving complex (OEC) of photosystem II (PSII), an oxygen-bridged Mn4CaO5 cluster stabilized by carboxylate ligands. This review surveys the structures of all heteronuclear Mn-Ca and Mn-Sr complexes that have been synthesized and characterized by x-ray crystallog. and establishes their relevance to the structure of the OEC. Polymers as well as discrete clusters from two up to fifteen metal ions were isolated in oxidn. states ranging from +II to +IV, with various topologies and bridging ligands ($μ$-alkoxo, $μ$-hydroxo and $μ$-oxo). Although this area of research is relatively new, as most of the publications come from the last five years, impressive advances have been recently achieved with the isolation of two close synthetic structural mimics of the cubane subunit Mn3CaO4 of the OEC in 2011 and one mimic of the whole cluster in 2015. [on SciFinder(R)]

Références

Titre
Manganese-calcium/strontium heterometallic compounds and their relevance for the oxygen-evolving center of photosystem II.
Type de publication
Article de revue
Année de publication
2016
Revue
Coord. Chem. Rev.
Volume
319
Pagination
1–24
ISSN
0010-8545
Soumis le 12 avril 2018