Bis{μ-4,4′-dimethoxy-2,2′-[propane-1,2-diylbis(nitrilomethylidyne)]diphenolato}bis({4,4′-dimethoxy-2,2′-[propane-1,2-diylbis(nitrilomethylidyne)]diphenol}manganese(III)) bis(hexafluoridophosphate)

In the title complex, [Mn2(C19H20N2O4)2(C19H22N2O4)2](PF6)2, the MnIII ion is coordinated by two O [Mn—O = 1.855 (2) and 1.887 (2) Å] and two N [Mn—N = 1.982 (3) and 1.977 (3) Å] atoms from the tetradentate Schiff base ligand and a coordinated axial ligand [Mn—O = 2.129 (2) Å]. The centrosymmetric dimer contains two Jahn–Teller-distorted MnIII ions, each in a nearly octahedral geometry, connected through two phenolate bridges from two ligands. There are two stereogenic centers. The methyl group and the H atom attached to the middle propane C atom are disordered over two positions with occupancy factors in the ratio 0.58:0.42. The crystal is therefore a mixture of two diasteroisomers, viz. RS/SR and RR/SS. In the axial ligand, the two benzene rings form a dihedral angle of 56.97 (5)° and the dihedral angle between the two MnNC3O chelate rings is 2.98 (12)°

Abstract licence: CC BY

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