Bis(μ-4-nitro-2-{[2-(oxidomethyl)phenyl]iminomethyl}phenolato) bis[chlorido-(dimethyl sulfoxide)iron(III)] dimethyl sulfoxide disolvate

Abstract

In the centrosymmetric dimeric title complex, [Fe2(C 14H10N2O4)2Cl 2(C2H6OS)2]·2C 2H6OS, two {Fe(L)Cl(DMSO)} units (L is the tridentate ligand 4-nitro-2-{[2-(oxidomethyl)phen-yl]imino-methyl}phenolate; DMSO is dimethyl sulfoxide) are bridged by two O atoms, with an Fe⋯Fe separation of 3.1838 (8) Å. The coordination polyhedron of the FeIII atoms can be described as distorted octa-hedral, with four Fe - O, one Fe - N and one Fe - Cl coordination bonds. The L ligand is not planar, the dihedral angle between the 2-(oxidomethyl)phen-yl]imino and 4-nitro-2-(imino-methyl)phenolate planes being 48.54 (9)°. The solvent DMSO molecule is disordered over two orientations with equal occupancy. © Chygorin et al. 2012.