title: 2-(1H-Pyrazol-3-yl)pyridinium chloride monohydrate.
abstract: The title organic salt, C(8)H(8)N(3) (+)·Cl(-)·H(2)O, exhibits a rich hydrogen-bonding network involving all constituent species. The water mol-ecules are engaged in strong O-H⋯Cl inter-actions with the chloride anions, two neighboring protonated 2-(1H-pyrazol-3-yl)pyridinium species inter-act via N-H⋯N bonds with two pyrazole rings. Further, a short and highly directional C-H⋯O inter-action is observed connecting the pyridinium ring to the water mol-ecule of crystallization. Weak C-H⋯Cl and N-H⋯Cl inter-actions contribute to the stabilization of the crystal structure.
authors.affiliation: Department of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal.
authors.forename: Tatiana R
authors.initials: TR
authors.lastname: Amarante
authors.forename: Isabel S
authors.initials: IS
authors.lastname: Gonçalves
authors.forename: Filipe A
authors.initials: FA
authors.lastname: Almeida Paz