Received 23 June 2010
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia,bDepartment of Chemistry, Manipal Institute of Technology, Manipal University, Manipal 576 104, India,cOrganic Chemistry Division, Department of Chemistry, National Institute of Technology-Karnataka, Surathkal, Mangalore 575 025, India, and dDepartment of Printing, Manipal Institute of Technology, Manipal University, Manipal 576 104, India
Correspondence e-mail: email@example.com
In the title compound, C20H18Br2N4O8, the interplanar angle of the pyrimidine rings is 75.1 (2)°. The central benzene ring is inclined at interplanar angles of 66.5 (2) and 71.9 (2)° with respect to the two pyrimidine rings. In the crystal structure, adjacent molecules are connected into two-molecule-thick arrays parallel to the bc plane via short BrBr [3.5328 (12) Å] and BrO [3.206 (3) and 3.301 (4) Å] interactions. A weak intermolecular - aromatic stacking interaction [centroid-centroid distance = 3.526 (3) Å] is also observed.
For general background to and applications of the title compound, see: Koichiro et al. (1988); He et al. (2007); Li et al. (2006); Gerorge (1983). For closely related structures, see: Fun et al. (2010); Li & Luo (2006).
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); 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 PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB5519 ).
HKF and JHG thank Universiti Sains Malaysia (USM) for the Research University Golden Goose grant (No. 1001/PFIZIK/811012). JHG also thanks USM for the award of a USM fellowship. AMI is grateful to the Head of the Chemistry Department and the Director, National Institute of Technology-Karnataka for their encouragement. AMI also thanks USM for a partially sponsored research visit to the X-ray Crystallography Unit, School of Physics, USM.
Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Fun, H.-K., Goh, J. H., Rai, S., Isloor, A. M. & Shetty, P. (2010). Acta Cryst. E66, ci5115.
Gerorge, L. (1983). US Patent No. 4 394 506.
He, Y.-Z., Li, Y.-X., Zhu, X.-L., Xi, Z., Niu, C., Wan, J., Zhang, L. & Yang, G.-F. (2007). J. Chem. Inf. Model. 47, 2335-2344.
Koichiro, S., Shoji, K., Yasubumi, T., Takeshige, M. & Ryo, Y. (1988). Japan Patent 88-132167 (CA112:216956, 1998).
Li, Y.-X. & Luo, Y.-P. (2006). Acta Cryst. E62, o1323-o1325.
Li, Y.-X., Luo, Y.-P., Xi, Z., Niu, C., He, Y.-Z. & Yang, G.-F. (2006). J. Agric. Food Chem. 54, 9135-9139.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.