catena-Poly[[(4-formylbenzoato-κO1)(isonicotinamide-κN1)zinc(II)]-μ-4-formylbenzoato-κ2O1:O1′]

Abstract

In the title compound, [Zn(C8H5O3)2(C6H6N2O)]n, the ZnII ion is tetrahedrally coordinated by two formylbenzoate (FB) and one isonicotinamide (INA) ligands while symmetry-related FB ligands bridge adjacent ZnII ions, forming polymeric chains along the b axis. The carboxylate groups in the two FB ions are twisted away from the attached benzene ring by 9.07 (2) and 26.2 (2)°. The two benzene rings of the FB ions are oriented at a dihedral angle of 81.30 (5)°. In the crystal, adjacent polymeric chains interact via N—H...O and C—H...O hydrogen bonds, π–π contacts between the formylbenzoate rings [centroid–centroid distance = 3.7736 (8) Å] and weak C—H...π interactions, forming a three-dimensional network.