title: 2-Amino-5-nitro-pyridinium hydrogen selenate.
abstract: There are two cations and two anions in the asymmetric unit of the title compound, C(5)H(6)N(3)O(2) (+)·HSeO(4) (-). In the crystal, there are two independent chains of HSeO(4) (-) anions running along the a axis, linked by O-H⋯O hydrogen bonds. Ribbons of cations linked by N-H⋯O hydrogen bonds run along the b-axis direction, and are further hydrogen bonded to the anions by N-H⋯O and C-H⋯O links, generating a three-dimensional network.
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia.
authors.forename: Samah
authors.initials: S
authors.lastname: Akriche
authors.forename: Mohamed
authors.initials: M
authors.lastname: Rzaigui