title: Diaqua-bis-(1H-imidazole-4-carboxyl-ato-κN,O)zinc.
abstract: In the title compound, [Zn(C(4)H(3)N(2)O(2))(2)(H(2)O)(2)], the Zn(II) ion is situated on a twofold rotation axis and exhibits a distorted octa-hedral coordination configuration. The equatorial plane contains two cis-oriented bidentate 1H-imidazole-4-carboxyl-ate ligands and the axial positions are occupied by two coordinated water mol-ecules. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-molecular network. There are π-π inter-actions between the imidazole rings, with a centroid-to-centroid distance of 3.504 (3) Å.
authors.forename: Wenlin
authors.initials: W
authors.lastname: Shuai
authors.forename: Songliang
authors.initials: S
authors.lastname: Cai
authors.forename: Shengrun
authors.initials: S
authors.lastname: Zheng