title: Bis[μ-4-amino-3,5-bis-(hydroxy-meth-yl)-1,2,4-triazole]bis{bis-[4-amino-3,5-bis-(hydroxy-meth-yl)-1,2,4-triazole]nickel(II)} tetra-nitrate methanol disolvate.
abstract: The title complex, [Ni(2)(C(4)H(8)N(4)O(2))(6)](NO(3))(4)·2CH(4)O, contains a centrosymmetric binuclear nickel(II) complex bridged by a pair of 4-amino-3,5-bis-(hydroxy-meth-yl)-1,2,4-triazole ligands. The separation between the Ni(II) atoms is 3.962 (1) Å. The Ni atoms are in a slightly distorted octa-hedral coordination. Inter-molecular N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonds connect the ligands, solvent mol-ecules and nitrate ions.
authors.affiliation: School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China.
authors.forename: Yu-Peng
authors.initials: YP
authors.lastname: Pan
authors.forename: Da-Cheng
authors.initials: DC
authors.lastname: Li
authors.forename: Da-Qi
authors.initials: DQ
authors.lastname: Wang