title: Poly[[diaqua-{N-[1-(3-pyrid-yl)ethyl-idene]-4H-1,2,4-triazol-4-amine}zinc(II)] bis-(perchlorate)].
abstract: In the title compound, {[Zn(C(9)H(9)N(5))(2)(H(2)O)(2)](ClO(4))(2)}(n), the Zn(II) ion lies on an inversion center and is coordinated by two triazolyl N atoms and two pyridyl N atoms from four symmetry-related N-1-(3-pyrid-yl)ethyl-idene-4H-1,2,4-triazol-4-amine (L) ligands and two O atoms from coordinated water mol-ecules in a slightly distorted octa-hedral environment. Each L ligand bridges symmetry-related Zn(II) ions, forming a two-dimensional layer with a (4,4) grid. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds connect perchlorate counter-anions to the layers.
authors.affiliation: Department of Materials Chemistry, School of Materials Science and Engineering, Key Laboratory of Non-ferrous Metals of the Ministry of Education, Central South University, Changsha 410083, People's Republic of China.
authors.forename: Xiaodan
authors.initials: X
authors.lastname: Sun
authors.forename: Xianhua
authors.initials: X
authors.lastname: He
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Donghua
authors.initials: D
authors.lastname: Miao
authors.forename: Qiaozhen
authors.initials: Q
authors.lastname: Sun