title: catena-Poly[[[diaqua-copper(II)]-bis-[μ(2)-1,3-bis-(1,2,4-triazol-1-yl)propane]] dinitrate monohydrate].
abstract: The title Cu(II) coordination polymer, {[Cu(C(7)H(10)N(6))(2)(H(2)O)(2)](NO(3))(2)·H(2)O}(n), was obtained by the reaction of equimolar Cu(NO(3))(2)·4H(2)O and 1,3-bis-(1,2,4-triazol-1-yl)propane (btp) in a water-methanol solvent. The Cu(II) atom is located on a centre of inversion and has an elongated octa-hedral coordination geometry formed by four N atoms from four symmetry-related btp ligands and two coordinated water mol-ecules. Adjacent Cu(II) atoms are connected by btp ligands, generating a double-stranded chain. The nitrate anion is disordered over two positions in a 0.828 (7):0.172 (2) ratio.
authors.affiliation: College of Chemistry and Life Science, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University, Tianjin 300387, People's Republic of China.
authors.forename: Wen
authors.initials: W
authors.lastname: Feng
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Zhao
authors.forename: En-Cui
authors.initials: EC
authors.lastname: Yang