(2E,6E)-2,6-Bis(2-fluoro-5-methoxybenzylidene)cyclohexan-1-one

Abstract

The title compound, C22H20F2O3, a derivative of curcumin, crystallized with two independent molecules in the asymmetric unit. The mean planes of the two 2-fluoro-5-methoxyphenyl groups are aligned at 24.88 (11)° in one molecule and 24.19 (15)° in the other. The dihedral angles between the mean plane of the penta-1,4-dien-3-one group and those of the two 2-fluoro-5-methoxyphenyl rings are 51.16 (11) and 49.16 (10)° in the first molecule, and 45.69 (15) and 54.00 (14)° in the second. The molecules adopt E configurations about the central olefinic bonds.