Jia Maomao, Liu Xianlin, Miao Jing, Xiong Wei, Chen Zilu
College of Chemistry and Chemical Engineering, Guangxi Normal University, Yucai Road 15, Guilin 541004, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Sep 19;65(Pt 10):o2490. doi: 10.1107/S1600536809036836.
The title compound, C(10)H(10)N(2) (2+)·C(10)H(8)O(4) (2-), has inversion centres located at the geometric centres of the 1,4-phenyl-enediacetate anion and 4,4'-bipyridinium cation. The anions and cations are connected by N-H⋯O hydrogen bonds, forming one-dimensional supra-molecular chains, which inter-act with each other via π-π inter-actions [centroid-centroid distance = 3.938 (2) Å], building a two-dimensional supra-molecular sheet.