(E)-3-(3,5-Dimeth­oxy­phen­yl)-1-(2-meth­oxy­phen­yl)prop-2-en-1-one

In the title mol­ecule, C₁₈H₁₈O₄, the dihedral angle between the benzene rings is 52.52 (7)°. The C=C bond of the central enone group adopts a trans conformation. The relative conformation of the two double bonds in the enone group is s-transoid. In the crystal, mol­ecules are linked by pairs of weak C—H...O hydrogen bonds, forming inversion dimers.

(E)-1-(3,5-Di­meth­oxy­phen­yl)-3-(3-meth­oxy­phen­yl)prop-2-en-1-one

In the title mol­ecule, C₁₈H₁₈O₄, the C=C bond of the central enone group adopts a trans conformation. The relative conformation of the C=O and C=C bonds is s-cisoid. The dihedral angle between the planes of the benzene rings is 29.49 (12)°. In the crystal, weak C—H...O hydrogen bonds link the mol­ecules into chains along [010].