Acta Cryst. (2013). E69, m356-m357 [ doi:10.1107/S1600536813014694 ]
Abstract: The molecule of the title CuII complex, [Cu(C7H4ClO2)2(C6H6N2O)2], contains two 3-chlorobenzoate (CB) and two nicotinamide (NA) ligands; the CB act as bidentate ligands, while the NA are monodentate ligands. The resulting CuN2O4 coordination polyhedron is a considerably distorted octahedron. The dihedral angles between the carboxylate groups and the adjacent benzene rings are 17.92 (12) and 24.69 (16)°, while the two benzene rings and the two pyridine rings are oriented at dihedral angles of 52.20 (8) and 1.56 (6)°. In the crystal, N-HN and C-HO hydrogen bonds link the molecules into a three-dimensional network. The - contact between the benzene rings [centroid-centroid distance = 3.982 (2) Å] may further stabilize the crystal structure.
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