(2E,6E)-2,6-Bis(2-fluoro-5-meth-oxy-benzyl-idene)cyclo-hexan-1-one

Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 27;66(Pt 12):o3309. doi: 10.1107/S1600536810048610.

Abstract

The title compound, C(22)H(20)F(2)O(3), a derivative of curcumin, crystallized with two independent mol-ecules in the asymmetric unit. The mean planes of the two 2-fluoro-5-meth-oxy-phenyl groups are aligned at 24.88 (11)° in one mol-ecule 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-meth-oxy-phenyl rings are 51.16 (11) and 49.16 (10)° in the first mol-ecule, and 45.69 (15) and 54.00 (14)° in the second. The mol-ecules adopt E configurations about the central olefinic bonds.