Acta Crystallographica Section E

Structure Reports Online

Volume 70, Part 1 (January 2014)


organic compounds



rz5097 scheme

Acta Cryst. (2014). E70, o11-o12    [ doi:10.1107/S1600536813032509 ]

2-[(E)-2-(4-Eth­oxy­phen­yl)ethen­yl]-1-methyl­quinolinium 4-fluoro­benzene­sulfonate

H.-K. Fun, T. Kobkeatthawin, P. Ruanwas, C. K. Quah and S. Chantrapromma

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-H...Osulfon­yl weak inter­actions. These chains are further connected into sheets parallel to (001) by C-H...Osulfon­yl weak inter­actions. The chains are also stacked along the a axis through [pi]-[pi] 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...[pi] inter­actions are also present.


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