Benzene-1,3,5-tricarboxylic acid–5-(pyridin-1-ium-3-yl)-5H-1,2,3,4-tetrazol-5-ide (1/1)

Abstract

The asymmetric unit of the title compound, C6H5N5·C9H6O6, comprises a full molecule each of neutral trimesic acid (tma) and zwitterionic 5-(pyridin-1-ium-3-yl)-5H-1,2,3,4-tetrazol-5-ide (ptz). The components are linked into a two-dimensional layer by a combination of O—H...O, O—H...N, N—H...O and N—H...N hydrogen bonds parallel to the (10overline{1}) plane. Layers comprising alternating rows of tma and ptz are linked into a three-dimensional network by C—H...O and π–π interactions between tma and tetrazolate rings [centroid–centroid distance = 3.763 (2) Å], and between pyridinium and tetrazolate rings [centroid–centroid distance = 3.745 (2) Å].