3-Nitrobenzoic acid #8211;3-methyl-4-nitropyridine 1-oxide (1/1)

The title adduct, C7H5NO4·C6H6N2O3, forms part of an ongoing study of the design of non-centrosymmetric systems based on 3-methy-4-nitropyridine 1-oxide. The components of the adduct are linked by intermolecular O—H...O hydrogen bonds. The rings of the two components are nearly planar, with a dihedral angle of 11.9 (2)° between the planes. The supramolecular structure shows that molecules of the title complex are linked into sheets by a combination of strong O—H...O and weak C—H...O hydrogen bonds.