title: Hexaaqua-magnesium dibromide 5-(pyridinium-3-yl)tetra-zol-1-ide.
abstract: In the title compound, [Mg(H(2)O)(6)]Br(2)·2C(6)H(5)N(5), the Mg(II) atom, lying on an inversion center, is coordinated by six water mol-ecules in a distorted octa-hedral geometry. The pyridine and tetra-zole rings in the 5-(pyridinium-3-yl)tetra-zol-1-ide zwitterion are nearly coplanar, twisted from each other by a dihedral angle of 5.70 (1)°. The zwitterions, Br anions and complex cations are connected by O-H⋯Br, O-H⋯N and N-H⋯Br hydrogen bonds, leading to the formation of a three-dimensional network.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Dai
authors.forename: Xin-Yuan
authors.initials: XY
authors.lastname: Chen