title: 1,2-Bis(1H-tetra-zol-5-yl)benzene dihydrate.
abstract: The asymmetric unit of the title compound, C(8)H(6)N(8)·2H(2)O, contains one half-mol-ecule, with the benzene ring on a centre of symmetry, and two uncoordinated water mol-ecules. The benzene ring is oriented at a dihedral angle of 34.43 (12)° with respect to the tetra-zole ring. Strong O-H⋯N hydrogen bonds link the water mol-ecules to the N atoms of the tetra-zole ring. In the crystal structure, strong inter-molecular O-H⋯O and O-H⋯N hydrogen bonds link the mol-ecules into a network. One of the water H atoms is disordered over two positions and was refined with occupancies of 0.50.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Hai-Jun
authors.initials: HJ
authors.lastname: Xu
authors.forename: Yi-Jie
authors.initials: YJ
authors.lastname: Pan
authors.forename: Li-Jing
authors.initials: LJ
authors.lastname: Cui