(2E)-3-(3,5-Dichloro-4-methoxy-2,6-dimethylphenyl)-1-(2,4-dichlorophenyl)prop-2-en-1-one

Abstract

In the title molecule, C18H14Cl4O2, the angle between the mean planes of the 3,5-dichloro-4-methoxy-2,6-dimethylphenyl and 2,4-dichlorophenyl groups is 47.6 (2)°. The 4-methoxy group, with a torsion angle of 91.9 (9)°, is twisted away from the plane of the 3,5-dichloro-2,6-dimethylphenyl ring in an anticlinal conformation. The ketone O atom of the prop-2-en-1-one group is twisted in a synclinal conformation with the 2,4-dichlorophenyl group [torsion angle = 45.5 (11)°]. The crystal packing is stabilized by intermolecular C—H...O hydrogen bonding between the ketone O atom from the prop-2-en-1-one group and an H atom from a nearby 2,4-dichlorophenyl group, which link the molecules into chains along the a axis. The 3,5-dichloro-4-methoxy-2,6-dimethylphenyl and 2,4-dichlorophenyl groups are aligned obliquely parallel to the ac face, with the benzene rings stacked obliquely along the b axis for both groups.