Research Article: 4-{2-[4-(Dimethyl­amino)­phen­yl]ethen­yl}-1-methyl­pyridinium 2-amino-3,5-dimethyl­benzene­sulfonate monohydrate

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Liang Li, Xutang Tao, Huai Yang, Zhou Yang.


In the crystal structure of the title compound, C16H19N2+·C8H10NO3S−·H2O, the cations and anions are linked by O—H⋯O and N—H⋯O hydrogen bonds, forming alternating layers parallel to the ac plane. An intra­molecular N—H⋯O hydrogen bond occurs in the anion. The crystal structure is further stabilized by π–π inter­actions, with centroid–centroid distances of 3.7240 (9) and 3.6803 (8) Å.

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For the synthesis, see: Okada et al. (1990 ▶). For background to non-linear optical materials, see: Gu et al. (2003 ▶); Dorrer (2006 ▶); Yang, Mutter et al. (2007 ▶); Ruiz et al. (2006 ▶). For the effects of different substituents of benzene sulfonate on its non-linear optical properties, see: Okada et al. (2003 ▶); Yang, Wörle et al. (2007 ▶); Ogawa et al. (2008 ▶), Yang et al. (2005 ▶), Yang, Jazbinsek et al., (2007 ▶). For bond-length data, see: Allen et al. (1987 ▶).