Acta Cryst. (2008). E64, o876-o877  [ doi:10.1107/S1600536808010465 ]

(E)-2-[4-(Dimethylamino)styryl]-1-methylquinolinium iodide sesquihydrate

S. Chantrapromma, T. Kobkeatthawin, K. Chanawanno, C. Karalai and H.-K. Fun

Abstract: In the title compound, C₂₀H₂₁N₂^+.I^-·1.5H₂O, the cation exists in the E configuration and is not planar. The dihedral angle between the quinolinium and dimethylaminophenyl rings is 9.26 (6)°. The O atom of one of the solvent water molecules lies on a twofold rotation axis. In the crystal structure, the cations form one-dimensional zigzag chains along the [001] direction. The cations are linked to water molecules and iodide ions through weak C-HO and C-HI interactions, respectively. Water molecules and iodide ions form O-HO and O-HI hydrogen bonds, which stabilize the crystal structure. A C-H interaction is also present.

Online 18 April 2008

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