Acta Cryst. (2008). E64, o1882-o1883  [ doi:10.1107/S1600536808027724 ]

2-[(E)-2-(4-Chlorophenyl)ethenyl]-1-methylpyridinium iodide monohydrate

K. Chanawanno, S. Chantrapromma and H.-K. Fun

Abstract: In the title compound, C₁₄H₁₃ClN⁺·I^-·H₂O, the cation is nearly planar and exists in an E configuration; the dihedral angle between the pyridinium and benzene rings is 0.98 (17)°. The cations stack in an anti-parallel manner along the a axis through two - interactions between the pyridinium and benzene rings [centroid-centroid distances 3.569 (2) and 3.6818 (13) Å, respectively]. The cation, anion and water molecule are linked into a chain along the a axis by weak C-HO and C-HI interactions together with O-HI hydrogen bonds and the chains are further connected into a three-dimensional network.

Online 6 September 2008

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