Zigzag hydrogen-bonded sheets in the structure of p-phenyl­azoaniline hydro­chloride

The structure of p-phenyl­azoanilinium chloride, C₁₂H₁₂N₃⁺·Cl⁻, consists of sheets each comprising organic cations and chloride anions linked by N—H⋯Cl and C—H⋯Cl hydrogen bonds. The p-phenyl­azoaniline mol­ecule is protonated at the azo site to form the azonium cation, while the amine group remains unchanged. The structure of the title compound has also been determined recently from powder diffraction data [Yatsenko et al. (2000). Acta Cryst. C56, 892–894].