Experimental Crystal data

R factor = 0.038; wR factor = 0.104; data-to-parameter ratio = 15.0. In the title compound, C13H8Cl3NO4S, the aromatic rings are oriented at a dihedral angle of 68.94 (1) and the molecule adopts a V-shape. An intramolecular N—H O interaction generates a six-membered S(6) ring motif. In the crystal, pairs of O—H O hydrogen bonds involving the carboxy group link the molecules into inversion dimers with an R2 2(8) motif. N—H O and non-classical C—H O interactions connect the molecules, forming sheets propagating in (100). Related literatur