title: 3,11-Dibromo-14-(4-chloro-phen-yl)-14H-dibenzo[a,j]xanthene dimethyl-formamide monosolvate.
abstract: In the title compound, C(27)H(15)Br(2)ClO·C(3)H(7)NO, the xanthene moiety has a flattened boat conformation with a folding angle between the naphthalene units of 9.46 (3)°. The mean planes of the xanthene system and its 4-chloro-phenyl substituent are nearly perpendicular [dihedral angle = 89.43 (5)°]. The dimethyl-formamide solvent mol-ecule is disordered over two sets of sites with an occupancy ratio of 0.520 (11):0.480 (11).
authors.affiliation: Key Laboratory of Green Chemical Technology of College of Heilongjiang Province, School of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin,  People's Republic of China.
authors.forename: Yong Bin
authors.initials: YB
authors.lastname: Song
authors.forename: Bo
authors.initials: B
authors.lastname: Liu