title: 2,3-Bis(4-bromo-phen-yl)quinoxaline.
abstract: The title compound, C(20)H(12)Br(2)N(2), was prepared by the reaction of 1-(3-bromo-phen-yl)-2-(4-bromo-phen-yl)ethane-1,2-dione with o-phenyl-enediamine in refluxing ethanol. In the mol-ecule, 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.
authors.affiliation: New Materials and Function Coordination Chemistry Laboratory, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
authors.forename: Fang-Fang
authors.initials: FF
authors.lastname: Jian
authors.forename: Ke-Fei
authors.initials: KF
authors.lastname: Wang
authors.forename: Rui-Rui
authors.initials: RR
authors.lastname: Zhuang
authors.forename: Hai-Lian
authors.initials: HL
authors.lastname: Xiao