In the title compound, C15H10BrClO, the dihedral angle between mean planes of the bromo- and chloro-substituted benzene Fingerless Gloves rings is 46.2 (2)° compared to 45.20 (9)° in the structure with the Cl substituent in the meta position of the aromatic ring.The dihedral angles between Miscellaneous Accessory the mean plane of the prop-2-ene-1-one group and the mean planes of the 4-bromophenyl and 3-chlorophenyl rings are 28.7 (5) and 24.
2 (4)°, respectively.In the crystal, weak intermolecular C—H.π interactions occur.