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Acta Cryst. (2013). E69, o1723
[ doi:10.1107/S1600536813028742 ]

Pyrrolidinium-2-carboxyl­ate-4-nitro­phenol (1/2)

N. S. Sowmya, Y. Vidyalakshmi, S. Sampathkrishnan, T. Srinivasan and D. Velmurugan

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-H...O hydrogen bond occurs in the pyrrolidinium-2-carboxyl­ate mol­ecule. In the crystal, mol­ecules are linked via O-H...O and N-H...O hydrogen bonds, enclosing R32(8) ring motifs, forming chains running parallel to the a axis. These chains are further cross-linked by O-H...O and C-H...O hydrogen bonds, forming undulating two-dimensional networks lying parallel to (001).

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