Functional modeling of the MnCAT active site with a dimanganese(III) complex of an unsymmetrical polydentate N3O3 ligand

An unsymmetrical N3O3-ligand H3L (1-[N-(2-pyridylmethyl),N-(2-hydroxybenzyl)amino]-3-[N′-(2-hydroxybenzyl),N′-(benzyl)amino]propan-2-ol) was employed to obtain an alkoxo-bis(carboxylate)-bridged diMnIII complex, [Mn2L(OAc)2(H2O)](BPh4)·3H2O, with dissimilar donor atoms around each Mn ion (N2O4 and NO4(solvent)) leaving one labile site on one of the two Mn ions that facilitates interaction of the metal center with H2O2, mimicking Mn catalase.89