Date Published: June 01, 2010
Publisher: International Union of Crystallography
Author(s): Xiao-Yan Yang, Ning Xu, Shan Liu.
The anion of the title compound, C5H6N+·C5H2NO4S−, is approximately planar, with the carboxylate and nitro group planes forming dihedral angles of 7.5 (3) and 3.5 (3)°, respectively, with the thiophene 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.
For the uses of 5-nitrothiophene-2-carboxylic acid, see: Cao et al. (2003 ▶). For the synthesis, see: Marques et al. (2002 ▶). For bond-length data, see: Allen et al. (1987 ▶).