2-Amino-4-Nitro-Phenol Monohydrate

Abstract

The title compound, C<inf>6</inf>H<inf>6</inf>N<inf>2</inf>O <inf>3</inf>·H<inf>2</inf>O, crystallizes with two formula units in the asymmetric unit. The molecules are essentially planar with the nitro groups twisted slightly out of the ring planes [maximum deviations from the ring plane of 0.13 (2) and 0.22 (2) Å in the two molecules]. The respective O - N - C - C torsion angles are 6.0 (4) and 12.5 (4)°. In the crystal structure, molecules are linked by inter-molecular N - H⋯O, C - H⋯O, O - H⋯O and O - H⋯N interactions into a three-dimensional network.