Sağlam, Ertuğrul Gazi
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In the centrosymmetric title structure, [Zn(C9H10NO2)2(C6H6N2O)2(H2O)2]·2H2O, the ZnII cation, located on an inversion center, is coordinated by two 4-(methylamino)benzoate anions, two nicotinamide ligands and two water molecules in a slightly distorted octahedral geometry. The dihedral angle between the carboxylate group and the attached benzene ring is 3.09 (9)°, while the pyridine and benzene rings are oriented at a dihedral angle of 77.10 (4)°. The uncoordinated water molecule is linked to nicotinamide ligands by O—H⋯O hydrogen bonds. In the crystal, intermolecular N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds link the molecules into a three-dimensional network. A weak N—H⋯π interaction also occurs.