2,7-Dibromo-9,9-dioctylfluorene-Chloroform (1/0.25)

In the solid state, the title compound, C₂₉H₄₀Br₂.0.25CHCl₃, crystallizes in the tetragonal system. The fluorene ring system is perfectly planar. The torsion angles in the octyl chains are all trans. These octyl chains are all orthogonal to the aromatic ring and are in the ab plane of the unit cell. The stacking of aromatic units is non-existent. In the cyclopentadiene ring, the angle at the benzilic carbon is 101.1 (3)° and is smaller than other angles in this part of the fluorene ring system.

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