Acta Cryst. (2004). E60, o1742-o1744  [ doi:10.1107/S1600536804022135 ]

Ammonium 2,6-dicarboxy-4-nitrophenolate

Y.-X. Sun and Y. Nie

Abstract: The title compound, NH₄⁺·C₈H₄NO₇^- consists of a 2,6-dicarboxy-4-nitrophenolate anion and an ammonium cation, both of which possess crystallographic twofold rotation symmetry. All the O atoms of the anion and the H atoms of the cation contribute to hydrogen bonds, forming a three-dimensional network.

Online 11 September 2004

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