Imidazolium 4-aminobenzoate

Abstract

In the title salt, C3H5N2+·C7H6NO2−, the carboxylate group of the 4-aminobenzoate anion forms a dihedral angle of 13.23 (17)° with respect to the benzene ring. There are N—H...O hydrogen-bonding interactions between the anion and cation, and weak intermolecular C—H...O contacts with carboxylate O-atom acceptors of the 4-aminobenzoate anion result in extended three-dimensional R44(22) and R56(30) edge-fused rings along the [100], [010] and [001] directions.