4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 3,5-dicarb-oxy-benzene-sulfonate methanol monosolvate

Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):o281. doi: 10.1107/S1600536811054419. Epub 2012 Jan 7.

Abstract

In the crystal structure of the title solvated salt, C(16)H(19)N(2) (+)·C(8)H(5)O(7)S(-)·CH(3)OH, the anions and the methanol solvent mol-ecules are linked by O-H⋯O hydrogen bonds. The cations and anions are packed as alternate layers parallel to (11[Formula: see text]). The crystal structure is further stabilized by a π-π inter-action between the pyridinium and benzene rings of the cations, with a centroid-centroid distance of 3.5492 (4) Å.