title: 1,3,4,6-Tetra-chloro-7,7-bis-(4-chloro-phen-yl)bicyclo-[4.2.0]oct-3-ene-2,5-dione.
abstract: The title compound, C(20)H(10)Cl(6)O(2), a quinone derivative, was obtained by the irradiation of 2,3,5,6-tetra-chloro-benzo-quinone and 4,4'-(ethene-1,1-di-yl)bis-(chloro-benzene). The six- and four-membered rings are fused in a cis configuration. The dihedral angle between them is 53.4 (3)°.
authors.affiliation: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
authors.forename: Huayou
authors.initials: H
authors.lastname: Hu
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.forename: Jun-Feng
authors.initials: JF
authors.lastname: Ji
authors.forename: Zhi-Guo
authors.initials: ZG
authors.lastname: Shen