Received 16 December 2007
In the title compound, C30H26, the dihedral angle between the two fluorene ring systems is 61.75 (4)°.
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and publCIF (Westrip, 2008).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU2394 ).
The authors thank the National Natural Science Foundation of China (20674070) and the Natural Science Foundation of Zhejiang Province (R404109).
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