Poly[trans-diaqua-bis[μ-3-(3-pyrid-yl)propionato-κN,O]cadmium(II)].

The title compound [Cd(L)(2)(H(2)O)(2)](n) (L = 3-pyridine-propionic acid, C(8)H(8)NO(2)), is a two-dimensional coordination polymer in which the Cd(II) ion lies on an inversion center and is coordinated in a slightly distorted octa-hedral environment. The aqua H atoms are involved in inter-molecular O-H⋯O hydrogen bonds, which extend the two-dimensional structure to a three-dimensional architecture. The Cd⋯Cd separation within a layer is 9.0031 (1) Å.