Di-μ-nicotinamide-κ2O:N1;κ2N1:O-bis[aquabis(4-methoxybenzoato-κO)copper(II)]

Abstract

The asymmetric unit of the centrosymmetric dinuclear title compound, [Cu2(C8H7O3)4(C6H6N2O)2(H2O)2], contains one half of the complex molecule. Each CuII atom is five-coordinated by one N atom from one bridging nicotinamide ligand and one O atom from another symmetry-related bridging nicotinamide ligand, two O atoms from two 4-methoxybenzoate ligands, and one water molecule, forming a distorted square-pyramidal geometry. Intermolecular O—H...O and N—H...O hydrogen bonds link the molecules into layers parallel to (overline{1}01). π–π interactions, indicated by short intermolecular distances of 3.801 (1) Å between the centroids of the benzene rings and 3.653 (1) Å between the centroids of the pyridine rings, further stabilize the structure.