4-Cyanoanilinium bromide

Abstract

In the crystal structure of the title compound, C7H7N2+·Br−, the cations are associated into inversion dimers through weak pairwise C—H...N hydrogen bonds. The dimers further form stepped sheets via weak pairwise C—H...N hydrogen bonds. In the sheets, the spacing between the mean planes of the laterally displaced aromatic rings in adjacent dimers is 1.124 (6) Å. Three N—H...Br interactions and two weak C—H...Br interactions per cation tie the sheets together.