catena-Poly[[aqua(11-chloropyrido[2′,3′:2,3]pyrimidino[5,6-f][1,10]phenanthroline-κ²N⁴,N⁵)cadmium(II)]-μ-benzene-1,4-dicarboxylato-κ³O¹,O^1′:O⁴]: an inclined interpenetrating (6,3) network

The asymmetric unit of the title compound, [Cd(C₈H₄O₄)(C₁₇H₈ClN₅)(H₂O)]_n, contains one Cd^II atom, two half benzene-1,4-dicarboxylate (1,4-bdc) anions, one 11-chloropyrido[2′,3′:2,3]pyrimidino[5,6-f][1,10]phenanthroline (L) ligand and one coordination water molecule. The 1,4-bdc ligands are on inversion centers at the centroids of the arene rings. The Cd^II atom is six-coordinated by two N atoms from one L ligand, three carboxylate O atoms from two different 1,4-bdc ligands and one water O atom in a distorted octahedral coordination sphere. Each Cd^II center is bridged by the 1,4-bdc dianions to give a one-dimensional chain. π–π stacking interactions between L ligands of neighboring chains extend adjacent chains into a two-dimensional supramolecular (6,3) network. Neighboring (6,3) networks are interpenetrated in an unusual inclined mode, resulting in a three-dimensional framework. Additionally, the water–carboxylate O—H...O hydrogen bonds observed in the network consolidate the interpenetrating nets.