(2Z)-3-(4-Hydroxyphenyl)-2-(pyridinium-4-yl)acrylonitrilep-toluenesulfonate

Abstract

In the structure of the title compound, C15H13N2O+·C7H7O3S−, the cation has a Z geometry about the ethyl­ene bridge that links the heterocyclic and aromatic rings. The skeleton of the cation is slightly non‐planar; the dihedral angles between the ethyl­ene linkage and the pyridinium ring and p‐hydroxy­phenyl ring are 9.2 (1) and 2.0 (1)°, respectively. In the crystal structure, the cations are stacked along the b axis, with a head‐to‐tail orientation, and weak inter­molecular C—H⋯N hydrogen bonds link the cations into chains along the a axis. In addition, inter­molecular O—H⋯O and C—H⋯O hydrogen bonds between cations and anions link two such chains together with a mean inter­planar distance of 3.23 Å between cations.

2-Hydroxypyridinium p-toluenesulfonate

“…Several crystal structures of p-toluenesulfonate have been reported previously (Helvenston et al, 2006;Collier et al, 2006;Koshima et al, 2001). As an extension of this research, we report here the synthesis and the crystal structure of the title complex.…”

“…For general background on ferroelectric frameworks, see: Zhang et al (2008Zhang et al ( , 2009Zhang et al ( , 2010. For related salts containing ptoluenesulfonate anions, see: Helvenston et al (2006); Collier et al (2006); Koshima et al (2001).…”

Propanaminium p-toluenesulfonate

“…For general background to ferroelectric metal-organic frameworks, see: Zhang et al (2009). For related structures, see: Helvenston et al (2006); Collier et al (2006); Koshima et al (2001).…”

“…Data collection: CrystalClear (Rigaku, 2005); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97. (Helvenston et al, 2006;Collier et al, 2006;Koshima et al, 2001). As an extension of this research, the synthesis and crystal structure of the title compound, (C 3 H 10 N + )(C 7 H 7 O 3 S -) -, aiming at enriching the series of p-toluenesulfonates is presented herein.…”