Pyridinium 3-nitro­benzoate–3-nitro­benzoic acid (1/1)

The crystal structure of the product of the neutralization reaction between 3-nitro­benzoic acid and pyridine is reported. The entities that crystallized are a pyridinium cation, a 3-nitrobenzoate anion and a 3-nitrobenzoic acid molecule in a 1:1:1 molar ratio, C(5)H(6)N(+)·C(7)H(4)NO(4) (−)·C(7)H(5)NO(4). Distinct sets of hydrogen bonds link the pyridinium and benzoate ions (N—H⋯O) and the acid and benzoate moieties (O—H⋯O). The hydrogen bonding along with π–π stacking between the acid and benzoate moieties accounts for the long-range ordering of the crystal. [Image: see text]