5-Nitroisophthalic acid hydrate

Article abstract of DOI:10.1107/S0108270199009105

In the title compound, C₈H₅NO₆·H₂O, the carboxylic acid groups are coplanar with the phenyl ring, whereas the nitro group is twisted from it by 26.1 (3)°. In the crystal, the molecules are linked by O - H...O hydrogen bonds through the water molecules and by weak C -H...O hydrogen bonds involving the nitro groups, to form infinite zigzag sheets.