catena-Poly[[[[bis(pyridin-2-yl-κN)amine]zinc(II)]-μ2-(2E,4E)-hexa-2,4-dienedioato-κ4O1,O1′:O6,O6′] monohydrate]

In the title compound, {[Zn(C6H4O4)(C10H9N3)]·H2O}n, the di(pyridin-2-yl)amine (dpa) ligands chelate the ZnII ions, forming [Zn(dpa)]2+ units which are connected by two independent bridging muconate [(2E,4E)-hexa-2,4-dienedioate] ligands to form chains. A crystallographic inversion centre is located at the mid-point of the central C—C bond of each muconate ligand. The carboxylate groups of the muconate ligands bridge the ZnII ions in asymmetric chelating modes. The ZnII ion is coordinated by four O atoms of two chelating carboxylate groups and two pyridyl N atoms in a distorted octahedral coordination environment. In the crystal, N—H...O and O—H...O hydrogen bonds connect chains and solvent water molecules, forming a two-dimensional network parallel to (101).