Acta Cryst. (2012). E68, m1162-m1163
[ doi:10.1107/S1600536812034587 ]

Diaquabis(2-iodobenzoato-O)bis(nicotinamide-N¹)copper(II)

Ö. Aydin, N. Çaylak Delibas, H. Necefoglu and T. Hökelek

Abstract: In the title complex, [Cu(C₇H₄IO₂)₂(C₆H₆N₂O)₂(H₂O)₂], the Cu^II cation is located on an inversion center and is coordinated by two monodentate 2-iodobenzoate (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-HO hydrogen bond. In the crystal, N-HO, O-HO and weak C-HO hydrogen bonds link the molecules into a three-dimensional supramolecular network.

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