Acta Cryst. (2009). E65, m1416-m1417  [ doi:10.1107/S1600536809042640 ]

Aquabis(4-formylbenzoato-²O¹,O^1')bis(isonicotinamide-N¹)cadmium(II) monohydrate

T. Hökelek, F. Yilmaz, B. Tercan, F. Gürgen and H. Necefoglu

Abstract: The asymmetric unit of the title Cd^II complex, [Cd(C₈H₅O₃)₂(C₆H₆N₂O)₂(H₂O)]·H₂O, contains two 4-formylbenzoate (FB), two isonicotinamide (INA) ligands, one coordinated and one uncoordinated water molecule; the FB ions act as bidentate ligands. The coordination number of the Cd(II) atom is seven within a CdO₅N₂ donor set. Intramolecular O-HO hydrogen bonds link the uncoordinated water molecules to the carboxyl groups. The dihedral angle between the carboxylate groups and the adjacent benzene rings are 17.53 (13) and 16.55 (14)°. In the crystal structure, intermolecular O-HO, N-HO, N-HN and C-HO hydrogen bonds link the molecules into a supramolecular structure. The amide group of one of the INA ligands is disordered over two orientations, with an occupancy ratio of 0.759 (3):0.241 (3).

Online 23 October 2009

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