Date Published: June 01, 2012
Publisher: International Union of Crystallography
Author(s): Chun-Hua Yu, Run-Qiang Zhu.
In the title compound, C3H5N2+·C2HO4−, the anions form centrosymmetric dimers through cyclic O—H⋯O hydrogen-bonding associations [graph set R22(10)]. These dimers are then linked through a cyclic R42(10) N—H⋯O hydrogen-bonding association involving two cations and the carboxyl O-atom acceptors of separate anions, giving chain structures extending across the (111) plane.
For general background to ferroelectric organic frameworks, see: Fu et al. (2009 ▶); Ye et al. (2006 ▶); Zhang et al. (2008 ▶, 2010 ▶). For graph-set analysis, see: Etter et al. (1990 ▶).