title: Aqua-(2,2'-bipyridine)bis-(4-hydroxy-benzoato)zinc(II).
abstract: In the title complex, [Zn(C(7)H(5)O(3))(2)(C(10)H(8)N(2))(H(2)O)], the Zn(II) ion is coordinated by two 4-hydroxy-benzoate anions, one 2,2'-bipyridine mol-ecule and one water mol-ecule and displays a distorted octa-hedral geometry. One Zn-O bond [2.5300 (15) Å] is much longer than the others in the mol-ecule. In the crystal structure, the face-to-face separation of 3.547 (9) Å suggests no π-π stacking between parallel bipyridine ring systems, and an extensive O-H⋯O hydrogen-bonding network between the coordinated water molecule, the phenol group and carboxylate O atoms is present.
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou, 310027, People's Republic of China.
authors.forename: Bing-Yu
authors.initials: BY
authors.lastname: Zhang
authors.forename: Jing-Jing
authors.initials: JJ
authors.lastname: Nie
authors.forename: Duan-Jun
authors.initials: DJ
authors.lastname: Xu