2,2′‐Bi(9,9‐di‐n‐propyl­fluorene)

The central part of the title mol­ecule, C₃₈H₄₂, is planar, all the rings being in the same plane; the lateral chains (excluding H atoms) are also planar, with each pair almost perpendicular to the ring plane. In the dimer, the two alkyl‐substituted fluorene moieties are head‐to‐foot. The mol­ecule is on a special position of the space group, a centre of symmetry.