Received 28 November 2011
aChemistry Department, Research Complex, Allama Iqbal Open University, Islamabad 44000, Pakistan,bNational Engineering & Scientific Commission, PO Box 2801, Islamabad, Pakistan, and cDepartment of Chemistry, The University of Hong Kong, Pokfulam Road, Pokfulam, Hong Kong SAR, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
The title molecule, C13H8BrN3O5, is slightly twisted, with the dihedral angle between the two benzene rings being 5.9 (1)°. In the crystal, N-HO hydrogen bonds link the molecules into one-dimensional chains running along . Further stabilization of the crystal structure is provided by - interactions [shortest centroid-centroid distance = 3.6467 (17) Å].
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK5029 ).
Dr Wesley T.-K. Chan, Professor Z.-Y. Zhou and the Hong Kong Polytechnic University are sincerely thanked for helping to collect the X-ray data.
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