Di-μ-nicotinamide-κ(2) O:N (1);κ(2) N (1):O-bis­[aqua­bis­(4-meth­oxy­benzoato-κO)copper(II)]

The asymmetric unit of the centrosymmetric dinuclear title compound, [Cu(2)(C(8)H(7)O(3))(4)(C(6)H(6)N(2)O)(2)(H(2)O)(2)], contains one half of the complex mol­ecule. Each Cu(II) 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 ([Image: see text]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.