Poly[(μ(2)-4,4′-bipyridine-κ(2) N:N′)(μ(2)-2,2-dimeth­yl­cyclo­pentane-1,3-dicarboxyl­ato-κ(4) O (1),O (1′):O (3),O (3′))cadmium]

In the title polymeric compound, [Cd(C(9)H(12)O(4))(C(10)H(8)N(2))](n), the Cd(II) atom is located on a twofold rotation axis and is coordinated by two 4,4′-bipyridine ligands and two 2,2-dimethyl­cyclo­pentane-1,3-dicarboxyl­ate ions. The carboxyl­ate ion and the N-heterocycle both function as bridges to link adjacent Cd(II) atoms to result in the formation of a layer structure parallel to (010). The mid-point of the central C—C bond of the 4,4′-bipyridine ligand is located on an inversion center. In the crystal, the carboxyl­ate ion is disordered over a twofold rotation axis in respect of its methyl group and the cyclo­pentane ring.