title: Pyridinium 5-nitro-thio-phene-2-carboxyl-ate.
abstract: The anion of the title compound, C(5)H(6)N(+)·C(5)H(2)NO(4)S(-), is approximately planar, with the carboxyl-ate and nitro group planes forming dihedral angles of 7.5 (3) and 3.5 (3)°, respectively, with the thio-phene ring. In the crystal structure, the cations and anions are linked into a two-dimensional network parallel to (011) by N-H⋯O and C-H⋯O hydrogen bonds.
authors.affiliation: Department of Chemical Engineering, Nanjing College of Chemical Technology, Nanjing 210048, People's Republic of China.
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Yang
authors.forename: Ning
authors.initials: N
authors.lastname: Xu
authors.forename: Shan
authors.initials: S
authors.lastname: Liu