Date Published: May 01, 2010
Publisher: International Union of Crystallography
Author(s): Gui-Ying Dong, Li-Hua Fan, Li-Xia Yang, Islam Ullah Khan.
The asymmetric unit of the title salt, C4H12N22+·2C9H5O6−, comprises one half of the piperazine-1,4-diium dication lying on an inversion centre and one 3,5-dicarboxybenzoate anion. In the crystal, the ions are linked into a two-dimensional framework parallel to (101) by N—H⋯O and O—H⋯O hydrogen bonds.
For related structures, see: Divya et al. (2003 ▶); Sharma & Zaworotko et al. (1996 ▶).