Acta Cryst. (2014). E70, o11-o12 [ doi:10.1107/S1600536813032509 ]
Abstract: In the structure of the title salt, C20H20NO+·C6H4FO3S-, the 4-(ethoxyphenyl)ethenyl unit is disordered over two positions with a refined site-occupancy ratio of 0.610 (6):0.390 (6). The cation is nearly planar, the dihedral angle between the quinolinium and benzene rings being 6.7 (4) and 1.7 (7)° for the major and minor components, respectively. The ethoxy group is essentially coplanar with the benzene ring [C-O-C-Cmethy = 177.1 (8) and 177.8 (12)° for the major and minor components, respectively]. In the crystal, cations and anions are linked into chains along the b-axis direction by C-HOsulfonyl weak interactions. These chains are further connected into sheets parallel to (001) by C-HOsulfonyl weak interactions. The chains are also stacked along the a axis through - interactions involving the quinolinium and benzene rings [centroid-centroid distances = 3.636 (5) Å for the major component and 3.800 (9) Å for the minor component]. C-H interactions are also present.
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