(E)-1-(Benzo[d][1,3]dioxol-5-yl)-3-(2,3-dichlorophenyl)prop-2-en-1-one

Abstract

In the title compound, C16H10Cl2O3, the olefinic double bond adopts an E conformation [C—C=C—C torsion angle = −172.9 (3)°]. The dihedral angle between the benzodioxole and dichlorobenzene rings is 5.57 (9)°. In the crystal, molecules are linked by weak C—H...O and C—H...Cl hydrogen bonds, forming chains propagating along the c-axis direction.

Keywords

• crystal structure
• bis-chalcone
• E configuration