Diaquabis-(2-iodobenzoato-κO)bis-(nicotinamide-κN ¹)copper(II)

In the title complex, [Cu(C₇H₄IO₂) ₂(C₆H₆N₂O)₂(H ₂O)₂], the Cu^II cation is located on an inversion center and is coordinated by two monodentate 2-iodo-benzoate (IB) anions, two nicotinamide (NA) ligands and two water molecules in a distorted octahedral coordination geometry. The dihedral angle between the carboxylate group and the adjacent benzene ring is 32.12 (14)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 82.02 (5)°. The coordinating water molecule links with the carboxylate group via an intramolecular O - H⋯O hydrogen bond. In the crystal, N - H⋯O, O - H⋯O and weak C - H⋯O hydrogen bonds link the molecules into a three-dimensional supra-molecular network.