Crystal structure of bis(1,3-bis{[(1 H -pyrrol-2-yl)methylidene]amino-κ N }propan-2-olato-κ O )manganese(III) nitrate methanol monosolvate

The asymmetric unit of the title compound, [Mn(C 13 H 15 N 4 O) 2 ]NO 3 ·CH 3 OH, contains two independent complex cations, in each of which the Mn III ion is located on an inversion centre. The Mn III ion is coordinated by four N and two O atoms from two 1,3-bis{[(1 H- pyrrol-2-yl)methylidene]amino}propan-2-olate ligands, resulting in a distorted octahedral geometry. The average Mn—ligand bond lengths in the two complex molecules are 2.074 and 2.079 Å. In the crystal, intermolecular N—H...O hydrogen bonds between the pyrrole group of the ligand and the non-coordinating nitrate ion give rise to a chain structure along [10-1]. The methanol solvent molecule and the nitrate ion are connected by an O—H...O hydrogen bond.