Bis[4-chloro-2-(quinolin-8-yliminomethyl)phenolato-κ3 N,N′,O]cobalt(III) trichloridomethanolcobaltate(II)

Abstract

The reaction of 4-chloro-2-(quinolin-8-yliminomethyl)phenol (HClQP) with cobalt(II) dichloride hexahydrate in methanol/chloroform under solvothermal conditions yielded the title compound, [Co(C16H10ClN 2O)2][CoCl3(CH3OH)]. The Co III atom is six-coordinated in a slightly distorted octahedral geometry by four N atoms and two O atoms of two tridentate HClQP ligands, which are nearly perpendicular to each other, making a dihedral angle of 86.95°. The CoII atom is four-coordinated by three Cl atoms and one O atom from a methanol ligand in a distorted tetrahedral geometry. The crystal packing is consolidated by intermolecular O - H⋯Cl, C - H⋯Cl and C - H⋯O hydrogen bonds, forming a three-dimensional supramolecular structure, in which [CoIICl3(CH3OH)] anions are connected via O - H⋯Cl and C - H⋯Cl hydrogen bonds into centrosymmetric dimers. Neighboring cobalt(III) complexes form dimers through C - H⋯O hydrogen bonds, as well as π-π stacking [centroid-centroid distances = 3.30 (2) Å] between the planar quinoline systems of one HClQP ligand and the phenolate ring of another.