| Summary: | The title compound, C17H15N2O2+·Cl−·H2O, was synthesized from benzimidazole and furfryl chloride in dimethylformamide. The cationic benzimidazolium ring is connected to two furan rings via methylene bridges. The furan rings make dihedral angle of 79.09 (18)° with respect to each other, and make dihedral angles of 73.92 (12) and 72.58 (13)° with respect to the benzimidazole ring. O—H...Cl, C—H...O and C—H...Cl hydrogen bonds and C—H...π interactions contribute to the stabilization of the crystal structure. Furthermore, there is a π–π interaction between adjacent five- and six-membered rings of the benzimidazole groups [centroid–centroid distance = 3.5305 (8) Å].
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