title: 2-(1,3-Thia-zol-4-yl)benzimidazolium nitrate monohydrate.
abstract: In the title compound, C(10)H(8)N(3)S(+)·NO(3) (-)·H(2)O, one of the N atoms of the benzimidazole unit is protonated, unlike than that in the thia-zole group. This protonation leads to equalization of the bond angles at the two N atoms of the benzimidazole group. The benzimidazole and thia-zole systems are almost coplanar, forming a dihedral angle of 0.5 (2)°. In the crystal, the nitrate anion and water mol-ecule bridge the thia-bendazolium cations through N-H⋯O and O-H⋯O hydrogen bonds, leading to a supra-molecular network based on an infinite one-dimensional chain using [001] as base vector.
authors.affiliation: Facultad de Química, Universidad Nacional Autónoma de México, 04510 México DF, México.
authors.forename: Marcos
authors.initials: M
authors.lastname: Flores-Alamo
authors.forename: Sandra
authors.initials: S
authors.lastname: González-Martínez
authors.forename: Silvia E
authors.initials: SE
authors.lastname: Castillo-Blum