Acta Cryst. (2005). E61, o1150-o1152  [ doi:10.1107/S1600536805008871 ]

2,6-Bis(4-nitrobenzylidene)cyclohexanone

J. W. Quail, U. Das and J. R. Dimmock

Abstract: In the crystal structure of the title compound, C₂₀H₁₆N₂O₅, the cyclohexane ring assumes the sofa conformation. Steric repulsions between one of the ortho-H atoms of each of the aryl groups and the equatorial H atoms at positions 3 and 5 of the cyclohexane ring lead to large torsion angles between the aryl rings and the adjacent olefinic linkages. Various bond angles confirm this steric impedance between the aryl and cyclohexane rings.

Online 31 March 2005

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