Date Published: August 01, 2012
Publisher: International Union of Crystallography
Author(s): Yanxi Song, C. S. Chidan Kumar, S. Chandraju, S. Naveen, Hongqi Li.
The asymmetric unit of the title compound, C17H20ClN2+·C6H2N3O7−·H2O, contains a piperazin-1-ium cation, a picrate anion and one solvent water molecule. The piperazene ring is protonated at one N atom and adopts a highly distorted chair conformation with the chloropheny(phenyl)methyl substituent on the second N atom in an equatorial position. The crystal structure is stabilized by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds.
For the biological activity of 1-benzylpiperazine, see: Campbell et al. (1973 ▶). For related structures, see: Jasinski et al. (2011 ▶); Song et al. (2012 ▶). For bond-length data, see: Allen et al. (1987 ▶).