A complex containing both five- and six-coordinate [bis(5-bromosalicylidene)benzene-1,2-diimine]chloroiron(III)

The title compound, aquachloro{4,4'-dibromo-2,2'-[o-phenylenebis(nitrilomet hylidyne)]diphenolato-O,N,N',O'}iron(III)-chloro{4,4'-dibromo-2,2'-[o-pheny lenebis(nitrilomethylidyne)]diphenolato-O,N,N',O'}iron(III)-dimethylformami de (1/1/1), [FeCl(C20H12Br2N2O2)][FeCl(C20H12Br2N2O2)(H2O)]. C3H7NO, contai ns one independent five-coordinate [FeCl(C-20 H12Br2N2O2)] monomer, one six -coordinate [FeCl(C20H12Br2N2O2)(H2O)] monomer and a non-coordinating dimet hylformamide solvent molecule in the asymmetric unit. In the five-coordinat e monomer, the Fe atom shows distorted square-pyramidal geometry, with the N and O atoms of the ligand at the base and the Cl atom at the apex of the pyramid. In the six-coordinate monomer, the Fe atom is in a distorted octah edral geometry and coordinated by the donor atoms of the tetrafunctional li gand in the horizontal plane, and the coordination sphere is completed by t he O atom of the water molecule and the Cl atom at the axial positions. The title compound contains intermolecular O-H ... O hydrogen bonds. Apart fro m these hydrogen bonds, there are also intermolecular C-H ... Cl and C-H .. . O contacts.