title: Tetra-aqua-bis{5-[2-(1H-tetrazol-5-yl)ethenyl]pyrazolato-κN}manganese(II) dihydrate.
abstract: The title compound, [Mn(C(4)H(3)N(8))(2)(H(2)O)(4)]·2H(2)O, represents the first structurally characterized transition metal complex of the 1,2-bis-(tetra-zol-5-yl)ethene ligand. The complex mol-ecule occupies a special position on an inversion centre and the Mn atom has a tetra-gonally distorted octa-hedral coordination. The bis-(tetra-zolyl)ethene ligand is planar within 0.0366 (7) Å. All 'active' H atoms participate in hydrogen bonds, which link mol-ecules of the complex and the uncoordinated water mol-ecules into an infinite three-dimensional framework.
authors.affiliation: Department of Chemistry, North University of China, Taiyuan, Shanxi 030051, People's Republic of China.
authors.forename: Tuoping
authors.initials: T
authors.lastname: Hu