Acta Cryst. (2009). E65, o518  [ doi:10.1107/S1600536809004474 ]

4-(4-Carboxybenzyl)-1-methylpiperazin-1-ium picrate

H. Li, Q. N. M. Hakim Al-arique, H. S. Yathirajan, B. Narayana and A. R. Ramesha

Abstract: The title compound, C₁₃H₁₉N₂O₂⁺·C₆H₂N₃O₇^-, is a salt obtained by cocrystallization of 4-[(4-methylpiperazin-1-yl)methyl]benzoic acid and picric acid. The cations adopt an `L-shaped' conformation and are linked into chains along [010] by O-HN hydrogen bonds. The NH group of each piperazinium ring forms a hydrogen bond to the phenolate O atom of a picrate anion, and the picrate anions form face-to-face contacts with an interplanar separation of 3.023 (1) Å.

Online 13 February 2009

Copyright © International Union of Crystallography
IUCr Webmaster