Bis[[aqua­(1H-imidazo[4,5-f][1,10]phenanthroline-κ(2) N (6),N (7))cadmium]bis­(μ-pyridine-2,3-dicarboxyl­ato)-κ(3) N,O (2):O (3);κ(3) O (3):N,O (2)]

In the title compound, [Cd(2)(C(7)H(3)NO(4))(2)(C(13)H(8)N(4))(2)(H(2)O)(2)], the Cd(II) ion is six-coordinated by two N atoms from a 1H-imidazo[4,5-f][1,10]phenanthroline (IP) ligand, one N atom and one O atom from a pyridine-2,3-dicarboxyl­ate (pdc) ligand, one O atom from another pdc ligand and one water mol­ecule in a distorted octa­hedral geometry. Two Cd(II) ions are bridged by a pair of pdc ligands, forming a centrosymmetric dinuclear structure. Neighboring dinuclear units are linked by the coordinated water mol­ecules through O—H⋯N and O—H⋯O hydrogen bonds, forming a layer parallel to (011). The layers are further linked into a three-dimensional network through N—H⋯O hydrogen bonds. π–π inter­actions between the IP ligands further stabilize the supra­molecular structure [centroid–centroid distances = 3.579 (3), 3.686 (3), 3.710 (3), 3.766 (3) and 3.841 (3) Å].