Received 2 March 2013
aDepartment of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan,bUniversität Paderborn, Warburgerstrasse 100, D-33098 Paderborn, Germany, and cDepartment of Materials and Metallurgical Engineering (DMME), Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad 45650, Pakistan
Correspondence e-mail: email@example.com
The molecular structure of the title compound, C13H10N2O4, shows an almost planar conformation as the benzene rings make a dihedral angle of 2.31 (7)°. The nitro group lies in plane with the benzamide ring, with a C-C-N-O torsion angle of 0.6 (2)°. In the crystal, N-HO and O-HO hydrogen bonds link molecules into sheets stacked along [10-1].
For background to aromatic polyimides, see: Sheng et al. (2009). For the solubilizing role of ether and amide groups in polyimides, see: Litvinov et al. (2010). For a related structure, see: Raza et al. (2010).
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and local programs.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK5203 ).
The contribution to this project of the Higher Education Commission of Pakistan by providing financial assistance through the International Research Support Initiative Programme (IRSIP) is acknowledged by the authors.
Bruker (2002). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Litvinov, V. M., Persyn, O., Miri, V. & Lefebvre, J. M. (2010). Macromolecules, 43, 7668-7679.
Raza, A. R., Nisar, B. & Tahir, M. N. (2010). Acta Cryst. E66, o2435.
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Sheng, S.-R., Pei, X.-L., Huang, Z.-Z., Liu, X.-L. & Song, C.-S. (2009). Eur. Polym. J. 45, 230-236.