The first high oxidation state manganese–calcium cluster: relevance to the water oxidizing complex of photosynthesis

Abstract
Synthetic entry has been achieved into high oxidation state Mn–Ca cluster chemistry with the preparation of [Mn13Ca2O10(OH)2(OMe)2(O2CPh)18(H2O)4]; the structure contains [Mn4CaO4] sub-units similar to that found in the photosynthetic water oxidizing complex.