(Z)-3-(9-Anthryl)-1-(4-methoxyphenyl)prop-2-en-1-one

The title chalcone derivative, C(24)H(18)O(2), which consists of the substituted 4-methoxyphenyl and anthracene rings bridged by the prop-2-en-1-one unit, exists in a cis configuration. The molecule is twisted, the interplanar angle between the benzene and anthracene rings being 69.50 (10)degrees. The methoxy group is coplanar with the attached benzene ring [C-O-C-C angle = 2.9 (3)degrees]. In the crystal structure, molecules are linked into chains along the a axis by a weak C-H center dot center dot center dot O(enone) interaction. The chains are stacked along the c axis. A C-H center dot center dot center dot pi interaction involving the benzene ring is observed.