Diaquabis(2-iodobenzoato-κ O )bis(nicotinamide-κ N 1 )cobalt(II)

• Published in: Acta crystallographica. Section E, Structure reports online Structure reports online, 2012-04, Vol.68 (4), p.m521-m522
• Main Authors: Aydın, Ömür, Çaylak Delibaş, Nagihan, Necefoğlu, Hacali, Hökelek, Tuncer
• Format: Article
• Language: English
• ISSN: 1600-5368; 1600-5368
• DOI: 10.1107/S160053681201330X

In the title complex, [Co(C 7 H 4 IO 2 ) 2 (C 6 H 6 N 2 O) 2 (H 2 O) 2 ], the Co 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. The four O atoms in the equatorial plane around the Co II cation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the NA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 22.3 (3)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 84.59 (13)°. Intramolecular O—H...O hydrogen bonding occurs between the carboxylate group and coordinated water molecule. In the crystal, N—H...O, O—H...O and weak C—H...O hydrogen bonds link the molecules into a three-dimensional supramolecular network.