title: 9-Chloro-methyl-9-[(9H-fluoren-9-yl)meth-yl]-9H-fluorene.
abstract: In the title compound, C(28)H(21)Cl, the dihedral angle between the two fluorene ring systems is 71.97 (4)°. There is an intra-molecular C-H⋯Cl hydrogen bond. In the crystal structure, the centroid-to-centroid distance between stacked fluorene ring systems is ca 4.22 Å, which indicates that there are no π-π stacking inter-actions between them.
authors.affiliation: Department of Chemistry, Zhejiang University, Yuquan Campus, Hangzhou 310027, People's Republic of China.
authors.forename: Qun
authors.initials: Q
authors.lastname: Shen
authors.forename: Shu-Qiang
authors.initials: SQ
authors.lastname: Yu
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Hu
authors.forename: Ping
authors.initials: P
authors.lastname: Lu