Diaquabis(4-methylaminobenzoato-κO)bis(nicotinamide-κN1)cobalt(II)

Abstract

The asymmetric unit of the title CoII complex, [Co(C8H8NO2)2(C6H6N2O)2(H2O)2], contains two half complex molecules with similar structures. The CoII 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)°, while the pyridine and benzene rings are oriented at dihedral angles of 67.40 (8) and 66.25 (8)°. In the crystal structure, intermolecular O—H...O and N—H...O hydrogen bonds link the molecules into a supramolecular structure.