Poly[[(μ(2)-biphenyl-2,4'-dicarboxylato)[μ(2)-1,4-bis(imidazol-1-ylmethyl)benzene]cadmium(II)] 0.15-hydrate].

The asymmetric unit of the title two-dimensional coordination polymer, {[Cd(C(14)H(8)O(4))(C(14)H(14)N(4))]·0.15H(2)O}(n), is composed of one Cd(II) cation, one biphenyl-2,4'-dicarboxylate (bpdc) anion, one 1,4-bis(imidazol-1-ylmethyl)benzene (bix) ligand and 0.15 solvent water molecules. The coordination environment of the Cd(II) cation is defined by four carboxylate O atoms from two different bpdc anions in a chelating mode and two N atoms from two distinct bix ligands, constructing a distorted trigonal prism polyhedron. Two inversion-related Cd(II) cations are bridged together by two positionally disordered bpdc anions, forming a 22-membered ring with a Cd...Cd distance of 9.1966 (9) Å. These rings are then further linked by two bix ligands, extending into a two-dimensional layer along (102) with 6(3) topology.