2-[(E)-2-(4-Ethoxyphenyl)ethenyl]-1-methylpyridinium 4-chlorobenzenesulfonate monohydrate

Abstract

In the title compound, C16H18NO+·C6H4ClO3S−·H2O, the cation exists in an E configuration with respect to the ethenyl bond and is slightly twisted with a dihedral angle of 9.85 (5)° between the pyridinium and the benzene rings. The anion is inclined to the cation with the dihedral angles between the benzene ring of the anion and the pyridinium and benzene rings of the cation of 78.33 (6) and 68.73 (6)°, respectively. In the crystal, the cations and anions are arranged alternately into head-to-head ribbons along the c axis, with the cationic ribbons stacked along the b axis. The crystal is consolidated by O—H⋯O hydrogen bonds, weak C—H⋯O and C—H⋯π inter­actions. π–π inter­actions with centroid–centroid distances of 3.6111 (7) and 3.6466 (7) Å are also observed.

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

“…The corresponding values are 180.0 (14) and 177.8 (12)° for the minor B component. Bond distances in both cation and anion have normal values (Allen et al, 1987) and are comparable to those observed in related structures (Chantrapromma et al, 2011;Fun et al, 2010;Ruanwas et al, 2010).…”

“…For background to the bioactivity and non-linear optical properties of quinolinium derivatives, see: Chanawanno et al (2010); Hopkins et al (2005); Musiol et al (2006);O'Donnell et al (2010); Ruanwas et al (2010). For related structures, see: Chantrapromma et al (2011); Fun et al (2010); Ruanwas et al (2010). For bond-length data, see: Allen et al (1987).…”