Acta Cryst. (2013). E69, o1723
[ doi:10.1107/S1600536813028742 ]
Abstract: In the title compound, C5H9NO2·2C6H5NO3, the pyrrolidine ring of the pyrrolidinium-2-carboxylate zwitterion adopts a twisted conformation on the -CH2-CH2- bond adjacent to the N atom. The mean plane of this pyrrolidine ring forms dihedral angles of 25.3 (3) and 32.1 (3)° with the two nitrophenol rings. An intramolecular N-HO hydrogen bond occurs in the pyrrolidinium-2-carboxylate molecule. In the crystal, molecules are linked via O-HO and N-HO hydrogen bonds, enclosing R32(8) ring motifs, forming chains running parallel to the a axis. These chains are further cross-linked by O-HO and C-HO hydrogen bonds, forming undulating two-dimensional networks lying parallel to (001).
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