Acta Cryst. (2013). E69, o114
[ doi:10.1107/S1600536812050878 ]

1-(4-Nitrophenyl)-1H-imidazol-3-ium chloride

H. Ibrahim and M. D. Bala

Abstract: In the title salt, C₉H₈N₃O₂⁺·Cl^-, the least-squares planes of the imidazolium and benzene rings are almost coplanar, making a dihedral angle of 4.59 (1)°. In the crystal, the chloride anion links the organic molecules through N-HCl hydrogen bonds, forming chains that run diagonally across the bc face, which compliment strong C-HO hydrogen bonds between neighbouring molecules. These chains are connected to adjacent chains through two weak C-HCl interactions, resulting in hydrogen-bonded sheets extending along the b and c axes. The absolute structure of the title compound was determined using a Flack x parameter of 0.00 (6) and a Hooft y parameter of 0.03 (2).

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