Aqua­Bis(4-Formyl­Benzoato-Κ2 O 1,O 1′)Bis­(Isonicotinamide-Κn 1)Cadmium(Ii) Monohydrate

Abstract

The asymmetric unit of the title CdII 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—H⋯O 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—H⋯O, N—H⋯O, N—H⋯N and C—H⋯O 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).