3-(Trifluoromethyl)Anilinium 2-Carboxy - Dichlorobenzoate

Abstract

The crystal structure of the title compound, C7H7F3N+· C8H3Cl2O4 -, is stabilized by five N - H⋯O, one O - H⋯O, two C - H⋯O and three C - H⋯X (X = F, Cl) hydrogen bonds. Intra-molecular O - H⋯O and C - H⋯X hydrogen bonds generate edge-fused [S(7)R 4 4(24)S(7)R 2 2(10)S(7)R 4 4(24)S(7)] motifs. The cations and anions are linked to each other by C - H⋯O hydrogen bonds, forming a chain along the c axis. This chain and the other hydrogen bonds form [R 3 2(6)R 1 2(4)S(7)R 1 2(4)R 4 4(18)R 5 5(24)R 4 4(18)R 1 2(4)R 1 2(4)S(7)R 1 2(4)R 3 2(6)] motifs. The dihedral angle between the planes of the aromatic rings in the cation and anion is 34.86 (1)°. © International Union of Crystallography 2007.