Çaylak Delibaş, Nagihan
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In the title complex, [Cu(C8H5O3)2(C6H6N2O)2(H2O)2], the CuII cation is located on an inversion center and is coordinated by two 4-formylbenzoate (FB) anions, two nicotinamide (NA) ligands and two water molecules in an elongated distorted octahedral geometry. The dihedral angle between the carboxylate group and the adjacent benzene ring is 23.00 (10)°, while the pyridine ring and the benzene ring are oriented at a dihedral angle of 85.34 (4)°. An intramolecular O—H⋯O hydrogen bond occurs between coordinating water molecule and the carboxylate group. 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. A weak C—H⋯π interaction also occurs in the crystal.