catena-Poly[diaqua­(cis-cyclo­hexane-1,2-dicarboxyl­ato)cadmium]

In the title polymer, [Cd(C(8)H(10)O(4))(H(2)O)(2)](n), the Cd(II) cation is coordinated by five carboxyl­ate O atoms from three different cyclo­hexane-1,2-dicarboxyl­ate anions and two O atoms from two water mol­ecules, displaying a distorted CdO(7) pentagonal–bipyramidal geometry. Each anion acts as a μ(3)-bridge, linking symmetry-related Cd(II) ions into a layer parallel to (010). In the crystal, numerous O—H⋯O and C—H⋯O hydrogen bonds occur. The coordinated water mol­ecules and carboxyl­ate O atoms act as donors or acceptors in the formation of these hydrogen-bonding inter­actions.