title: Triaqua-dichlorido[5-(4-pyridinio)tetra-zolato-κN]cobalt(II) monohydrate.
abstract: The title compound, [CoCl(2)(C(6)H(5)N(5))(H(2)O)(3)]·H(2)O, was synthesized by hydro-thermal reaction of CoCl(2) with 4-(2H-tetra-zol-5-yl)pyridine. The Co(II) cation is coordinated by two Cl(-) ions, one N atom from the 5-(4-pyridinio)tetra-zolate zwitterion and three O atoms from three water mol-ecules in a distorted octa-hedral geometry. In the crystal, mol-ecules are linked into a three-dimensional network by N-H⋯Cl hydrogen bonds and O-H⋯O/N/Cl hydrogen bonds involv-ing both coordinated and uncoordinated water mol-ecules. Strong π-π stacking is present between parallel pyridinium and tetra-zolate rings [centroid-centroid distances = 3.411 (2) and 3.436 (2) Å].
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Wang