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, C20H18Cl2N4O8, the two pyrimidine rings are inclined at dihedral angles of 66.68 (5) and 71.91 (6)° with respect to the central benzene ring. In the crystal structure, intermolecular C-HN hydrogen bonds link neighbouring molecules into a ribbon-like structure along the b axis. The ribbons are interconnected into a two-dimensional network parallel to the bc plane by short intermolecular ClCl [3.4427 (6) Å] and ClO [3.1420 (9) and 3.1750 (11) Å] interactions. The crystal structure is further stabilized by intermolecular - interactions [centroid-centroid distance 3.4552 (8) Å] involving the pyrimidine rings.
For general background to and applications of the title compound, see: Koichiro et al. (1988, 1998); He et al. (2007); Li et al. (2006); Gerorge (1983). For graph-set descriptions of hydrogen-bonded ring motifs, see: Bernstein et al. (1995). For a closely related structure, see: Li & Luo (2006). For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986).
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: CI5115 ).
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 thankful 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.
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