Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Ying-Chun Wang.
All non-H atoms of the cation of the title salt, C6H5N2+·HSO4−, are essentially coplanar [r.m.s. deviation = 0.005 (1) Å] . In the crystal, N—H⋯O and O—H⋯O hydrogen bonds and weak C—H⋯O and C—H⋯N interactions link the molecules into a two-dimensional network parallel to the (001) plane. Weak π–π stacking interactions between the pyridine rings of neighbouring molecules further stabilize the structure [centroid–centroid distance = 3.785 (1) Å].
For materials which display ferroelectric–paraelectric phase transitions, see: Chen et al. (2001 ▶); Huang et al. (1999 ▶); Zhang et al. (2001 ▶); For the structures and properties of related compounds, see: Wang et al. (2002 ▶); Xue et al. (2002 ▶); Ye et al. (2008 ▶).