Bis{μ-4,4′-dimeth-oxy-2,2′-[propane-1,2-diylbis(nitrilo- methyl-idyne)]diphenolato}bis-({4,4′-dimeth-oxy-2,2′-[propane-1, 2-diylbis(nitrilo-methyl-idyne)]diphenol}manganese(III)) bis-(hexa-fluorido- phosphate)

In the title complex, [Mn₂(C₁₉H₂₀N ₂O₄)₂(C₁₉H₂₂N ₂O₄)₂](PF₆)₂, the Mn ^III 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 tetra-dentate Schiff base ligand and a coordinated axial ligand [Mn - O = 2.129 (2) Å]. The centrosymmetric dimer contains two Jahn-Teller-distorted Mn^III ions, each in a nearly octa-hedral 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)°