(2E)-1-(6-Chloro-2-methyl-4-phenylquinolin-3-yl)-3-(4-chlorophenyl)prop-2en-1-one

Two independent molecules comprise the asymmetric unit of the title chalcone, C25H17Cl2NO, and while each has an E configuration about the ethylene double bond, they differ in the relative orientations of the carbonyl and ethylene double bonds within the prop-2-en-1-one residues, i.e. anti and syn. For each molecule, the benzene [dihedral angles = 71.04 (9) and 73.34 (12)degrees] and prop-2-en-1-one [C-C-C-O = 91.2 (2) and -119.1 (3)degrees] substituents are twisted out of the plane of the quinoline moiety to which they are attached. The crystal structure is stabilized by C-H center dot center dot center dot pi and pi-pi [Cg(quinoli(quinoline)center dot center dot center dot Cg(quinoline) = 3.7809 (12) and 3.8446 (11) angstrom] interactions.