5-Chloro-2-nitrophenol

Abstract

The asymmetric unit of the title compound, C6H4ClNO3, contains two independent molecules in which the dihedral angles between the benzene ring and the nitro groups are 2.5 (1) and 8.5 (1)°. Intramolecular O—H...O hydrogen bonds involving the hydroxy and nitro substituents result in the formation of S(6) six-membered rings. In the crystal, O—H...O, O—H...Cl and C—H...O hydrogen bonds together with Cl...O contacts [3.238 (3) and 3.207 (3) Å] generate a three-dimensional network.