Abstract
The title compound, C15H13N4+·ClO4-, comprises a nonplanar 1-(2-cyano-ethyl)-2-(2-pyrid-yl)-1H,3H-benzimidazol-3-ium cation [dihedral angle between the imidazole and pyridine rings = 22.5 (8)°] and a perchlorate anion. The cation is formed by protonation of the N atom of the benzimidazole ring. A charged N - H⋯O hydrogen bond connects the anion and cation, and inter-molecular C - H⋯O and C - H⋯N interactions contribute to the crystal packing.
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Li, Y., Tang, X., Chen, J., Wu, D., & Liu, W. (2010). 1-(2-Cyanoethyl)-2-(2-pyridyl)-1H,3H-benzimidazol-3-ium perchlorate. Acta Crystallographica Section E: Structure Reports Online, 66(2). https://doi.org/10.1107/S1600536809055251
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