Diaquabis(4-methylaminobenzoato-kappa O)bis(nicotinamide-kappa N-1)cobalt(II)

Abstract

The asymmetric unit of the title Co-II complex, [Co(C8H8NO2)(2)(C6H6N2O)(2)(H2O)(2)], contains two half complex molecules with similar structures. The Co-II atoms are each located on an inversion center and each is coordinated by two 4-methylaminobenzoate (PMAB), two nicotinamide (NA) ligands and two water molecules in a distorted octahedral coordination. The dihedral angles between the carboxylate groups and the adjacent benzene rings are 3.0 (3) and 2.54 (19)degrees, while the pyridine and benzene rings are oriented at dihedral angles of 67.40 (8) and 66.25 (8)degrees. In the crystal structure, intermolecular O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds link the molecules into a supramolecular structure.