Structural characterisation of the H-bonded [Mn-II(OH2)(2)center dot center dot center dot(OCH3)(2)Mn-III] motif: A model for resting state hydroxylic solvent coordination in M(II)-M(III) enzymes

A mixed-valence dimanganese complex with two water ligands bound to the Mn( II) ion and two methoxide ligands bound to the Mn( III) ion in a H-bonded arrangement has been structurally characterised and models possible resting state water/hydroxide coordination in purple acid phosphatases.