(E)-2,2,5,5-Tetramethyl-3,4-bis[4-(tribromomethyl)phenyl]hex-3-ene

Steric repulsion of the tert-butyl groups of the title compound, C₂₄H₂₆Br₆, causes the phenyl rings to rotate out of the plane of the central double bond eliminating the conjugation between the three π systems, yet the central double bond is normal, 1.33 (1) Å. The molecules pack together to maximize Br...Br and tert-butyl...tert-butyl interactions forming `planes' of Br atoms and tert-butyl groups. Results are supplemented by MOPAC calculations.

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