Received 9 October 2013
aSri Venkateswara College of Engineering, Pennalur, Irungattukottai 602 117, Sriperumbudur Taluk, Tamilnadu, India,bDepartment of Physics, Anna University, Adyar, Chennai 600 025, Tamilnadu, India, and cCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
Correspondence e-mail: firstname.lastname@example.org
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).
For the use of nitro-aromatics as intermediates in explosives, dyestuffs, pesticides and organic synthesis, see: Yan et al. (2006). For the occurrence of nitro-aromatics in industrial wastes and as direct pollutants in the environment, see: Yan et al. (2006); Soojhawon et al. (2005). For ring puckering analysis, see: Cremer & Pople (1975).
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2657 ).
The authors thank the TBI X-ray facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection. TS also thanks DST Inspire for financial assistance.
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