Aqua(benzene-1,3-dicarboxylato)zinc(II)

The title compound, poly[[aquazinc(II)]-mu -benzene-1,3-dicarboxylato-O-1:O -1':O-2], [Zn(C8H4O4)(H2O)](n), forms a metal-organic coordination network that consists of tetrahedral Zn atoms bonded to one water molecule and thre e carboxylate groups. Isophthalate groups bridge the four-coordinate Zn cen ters to generate two-dimensional architectures in the ac plane. These plana r zinc isophthalate motifs are linked by infinite C=O . . .H-O-H interactio ns along the a axis to form a chiral framework. The observed polar structur al pattern originates due to the distorted tetrahedral Zn centers [O-Zn-O 1 00.7 (2)-136.0 (1)degrees] and the alignment of the water molecules. Bridgi ng isophthalate groups align to form approximate centrosymmetric motifs.