ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.66, 2010 (SCI-Expanded)
The cation of the title compound, C7H7N2S+center dot H2PO4 -, is almost planar (r.m.s deviation = 0.017 A for all non-H atoms). In the crystal structure, the cations and anions are connected by N-H...O and O-H...O hydrogen bonds, with pi-pi stacking interactions between neighbouring 1,3-thiazole and benzene rings [centroid-centroid distance = 3.5711 (11) A], forming a three-dimensional network.