Abstract
The title compound, C8H8NO4 +·NO3 −·H2O, crystallizes in the same space group (P21/c) as the previously reported dihydrate form [Liang & Zhu (2010). Acta Cryst. E66, o667], but with two formula units per asymmetric unit instead of one. In the crystal, the components are linked into a three-dimensional network by classical intermolecular O—H...O and N—H...O hydrogen bonds and π–π stacking interactions. A Hirshfeld surface (HS) analysis indicated that the most important contributions to the crystal packing are from H...O/O...H (52.4%), H...H (13.9%) and C...C (11.2%) for one cation and H...O/O...H (46.3%), H...H (20%) and O...C/C...O (10.6%) for the other.
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