catena-Poly[[(2-methylbenzoato-κ2O,O′)sodium]-di-μ-aqua-κ4O:O′]

In the title coordination polymer, [Na(C8H7O2)(H2O)2]n, the cation is chelated by the carboxylate O atoms of the anion in a bidentate mode and is surrounded by the O atoms of four water molecules. The coordination of the Na+ cation is distorted octahedral. The water molecules bridge adjacent metal cations, forming polymeric layers parallel to (100). The structure is stabilized by an extensive network of O—H...O hydrogen bonds