Received 6 October 2013
aDepartment of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan,bMedicinal Botanic Centre, PCSIR Laboratories Complex, Peshawar, Pakistan,cUniversity of Sargodha, Department of Physics, Sargodha, Pakistan, and dDepartment of Chemistry, Kohat University of Science and Technology, Kohat, Pakistan
Correspondence e-mail: email@example.com
In the title compound, C12H9BrN4O, the dihedral angle between the aromatic rings is 12.16 (12)°. An intramolecular N-HN hydrogen bond closes an S(5) ring. In the crystal, C-HO hydrogen bonds link the molecules into C(6) chains propagating in . Very weak aromatic - stacking [centroid-centroid separations = 3.9189 (15) and 3.9357 (15) Å] is also observed.
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: ORTEP-3 for Windows (Farrugia, 2012) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 2012) and PLATON.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB7147 ).
The authors acknowledge the provision of funds for the purchase of diffractometer and encouragement by Dr Muhammad Akram Chaudhary, Vice Chancellor, University of Sargodha, Pakistan. The authors are also thankful to the Higher Education Commission (HEC) of Pakistan for financial support. M. Ahmad is thankful to the Pakistan Council of Scientific and Industrial Research (PCSIR) Laboratories of Pakistan for financial support throughout his study leave.
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