CHLORIDE-INDUCED CONVERSION OF [MN4O2(OAC)6(PY)2(DBM)2] TO [MN4O3CL(OAC)3(DBM)3] - POTENTIAL RELEVANCE TO PHOTOSYNTHETIC WATER OXIDATION

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 4III‐complex is converted into an Mn 4IIIMnIV complex, as given formally in Equation (a). Thus, the redox process S1 → S2 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. (Formula Presented.) Copyright © 1991 by VCH Verlagsgesellschaft mbH, Germany