2-(4-Chlorophenyl)chromen-4-one

Abstract

The title compound, C15H9ClO2, is a synthetic flavonoid obtained by the cyclization of 3-(4-chlorophenyl)-1-(2-hydroxyphenyl)prop-2-en-1-one. The 4-chlorophenyl ring is twisted at an angle of 11.54° with respect to the chromen-4-one skeleton. In the crystal, pairs of molecules are interconnected by weak Cl...Cl interactions [3.3089 (10) Å] forming dimmers which are further peripherally connected through intermolecular C—H...O hydrogen bonds.