Abstract
The title compound, C20H12Br2N2, was prepared by the reaction of 1-(3-bromophenyl)-2-(4-bromophenyl)ethane-1,2-dione with o-phenylenediamine in refluxing ethanol. In the molecule, all bond lengths and angles are within normal ranges. The dihedral angle between the two benzene rings is 34.89 (1)°. The dihedral angles between the benzene rings and the quinoxaline system are 57.23 (1) and 36.75 (1)°. The crystal packing is stabilized by van der Waals forces.
Highlights
New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao 266042, People’s Republic of China
All bond lengths and angles are within normal ranges
The dihedral angles between the benzene rings and the quinoxaline system are 57.23 (1) and 36.75 (1)
Summary
New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao 266042, People’s Republic of China. R factor = 0.045; wR factor = 0.128; data-to-parameter ratio = 13.3. The title compound, C20H12Br2N2, was prepared by the reaction of 1-(3-bromophenyl)-2-(4-bromophenyl)ethane-1,2dione with o-phenylenediamine in refluxing ethanol. All bond lengths and angles are within normal ranges. The dihedral angle between the two benzene rings is. The dihedral angles between the benzene rings and the quinoxaline system are 57.23 (1) and 36.75 (1). The crystal packing is stabilized by van der Waals forces. See: Brock et al (1999); Dailey et al. Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG2324)
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