Acta Crystallographica Section E (Apr 2012)

2-Phenyl-1H-imidazol-3-ium hydrogen fumarate–fumaric acid (2/1)

  • Hong Guo,
  • Xin Zhang,
  • Jian-Xia Li

DOI
https://doi.org/10.1107/S1600536812005557
Journal volume & issue
Vol. 68, no. 4
pp. o1021 – o1021

Abstract

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The asymmetric unit of the title compound, C9H9N2+·C4H3O4−·0.5C4H4O4, consists of one 2-phenylimidazolium cation, one hydrogen fumarate anion and half a fumaric acid molecule, which lies on an inversion center. N—H...O and O—H...O hydrogen bonds connect the cations, anions and fumaric acid molecules into sheets parallel to the (102) plane.