Chloride‐Induced Conversion of [Mn₄O₂(OAc)₆(py)₂(dbm)₂] to [Mn₄O₃Cl(OAc)₃(dbm)₃]: Potential Relevance to Photosynthetic Water Oxidation

Abstract

Further insights into the function of chloride in the water‐oxidizing enzyme system of photosynthesis are provided by the title reaction, in which an Mn ‐complex is converted into an Mn Mn IV complex, as given formally in Equation (a). Thus, the redox process S 1 → S 2 taking place in the active state in nature is copied, and suggests that also the biological relevance of Cl ⊖ could lie in the stabilization of a higher oxidized Mn aggregates. equation image