title: 2,7-Dibromo-9,9-dimethyl-9H-fluorene.
abstract: The title mol-ecule, C(15)H(15)Br(2), has crystallographic m2m site symmetry. As a result, all atoms, except for those of the methyl groups, are exactly coplanar. In the crystal structure, there are weak π-π inter-actions with a centroid-centroid distance of 3.8409 (15) Å between symmetry-related mol-ecules, which stack along the c axis.
authors.affiliation: Tianjin Basechem Technology Co. Ltd, K1-4-404, No. 6 Haitaifazhan 6th Road Huayuan Industry Area, Tianjin New Technology Industry Park, Tianjin 300384, People's Republic of China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
authors.forename: Xinliang
authors.initials: X
authors.lastname: Fu
authors.forename: Yongkuan
authors.initials: Y
authors.lastname: Qiu
authors.forename: Jialong
authors.initials: J
authors.lastname: Yuan