catena-Poly[[[(acetato-κ2O,O′)aquacadmium(II)]-μ-l-threoninato-κ3N,O:O′] monohydrate]

The title compound, {[Cd(C2H3O2)(C4H8NO3)(H2O)]·H2O}n, was synthesized from the reaction between l-threonine and cadmium acetate dihydrate. The complex consists of the CdII metal ion bonded to bidentate threonine and acetate anions, and one water molecule. The carboxylate group of l-threonine bridges two metal cations related by the crystallographic screw axis parallel to [010], to form a one-dimensional polymeric structure in the crystal. The asymmetric unit is completed by one lattice water molecule, which is involved in hydrogen bonds.