(E)-2-[4-(Dimethyl-amino)styr-yl]-1-methyl-quinolinium iodide sesquihydrate

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 dimethyl-amino-phenyl rings is 9.26 (6)°. The O atom of one of the solvent water mol-ecules 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 mol-ecules and iodide ions through weak C - H⋯O and C - H⋯I inter-actions, respectively. Water mol-ecules and iodide ions form O - H⋯O and O - H⋯I hydrogen bonds, which stabilize the crystal structure. A C - H⋯π inter-action is also present.