Bis(4-ethylanilinium) 4,5-dichlorophthalate

Abstract

The crystal structure of the title compound, 2C8H12N+·C8H3Cl2O4 2−, is stabilized by nine N—H...O and four C—H...O hydrogen bonds, and also by C—H...π interactions. Intramolecular C—H...O hydrogen bonds form C(6) chains along the c axis. This chain and the other hydrogen bonds generate edge-fused [R 1 2(6)R 1 2(4)R 4 3(10)R 1 2(4)R 3 2(9)] motifs in a three-dimensional network. The dihedral angles between the carboxylate anion and the cation aromatic ring planes are 75.90 (2) and 68.15 (2)°, and the dihedral angles between the carboxylate groups and the anion aromatic ring plane are 13.72 (3) and 84.64 (3)°.