title: 4-Nitro-N-(4-pyridinio)benzene-sulfonamidate monohydrate.
abstract: The title compound, C(11)H(9)N(3)O(4)S·H(2)O, contains both an acid and a base centre, and displays a zwitterionic structure in the solid state. The benzene ring makes an angle of 109.1 (2)° with the pyridinium ring. The crystal structure is stabilized by O-H⋯N, O-H⋯O and N-H⋯O hydrogen bonds.
authors.forename: Yu-Zhen
authors.initials: YZ
authors.lastname: Chen
authors.forename: Han
authors.initials: H
authors.lastname: Gao
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Xiao-Jing
authors.initials: XJ
authors.lastname: Chen
authors.forename: Sheng-Yang
authors.initials: SY
authors.lastname: Niu