3,9'-Bi(9H-fluorene).
THE TITLE COMPOUND [SYSTEMATIC NAME: 9-(9H-fluoren-3-yl)-9H-fluorene], C(26)H(18), was obtained unintentionally as the product of the synthesis of a compound based on fluorene-thio-phene units. The two fluorene rings are connected through C atoms in the 3- and 9'-positions, and the dihedral angle between the mean planes of the two fluorene units is 78.57 (6)°.
State Key Laboratory of Crystal Materials, Shandong University, Shanda Nanlu 27 Jinan 250100,  People's Republic of China.
Jie
J
Liu
Wentao
W
Yu