Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Jie Liu, Wentao Yu.
The title compound [systematic name: 9-(9H-fluoren-3-yl)-9H-fluorene], C26H18, was obtained unintentionally as the product of the synthesis of a compound based on fluorene–thiophene 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)°.
For the crystal structures of related compounds, see: Dougherty et al. (1978 ▶); Sridevi et al. (2006 ▶). For the synthesis of the compound, see: Stille et al. (1993 ▶, 1998 ▶); Grasa & Nolan (2001 ▶). For the intermolecular C—H⋯π interactions, see: Tsuzuki et al. (2000 ▶); Nishio (2004 ▶).