3-Hydroxy-2-(4-methoxyphenyl)-4H-chromen-4-one

Abstract

In the title compound, C16H12O4, the benzene ring is twisted at an angle of 12.3 (1)° relative to the 4H-chromene skeleton, and an intramolecular O—H...O hydrogen bond occurs. The methoxy group is almost coplanar with the benzene ring [1.5 (1)°]. In the crystal, inversely oriented molecules are arranged in double (A, A′) columns, along the b axis, and are linked by a network of intermolecular O—H...O hydrogen bonds (between A and A′) and C—H...π contacts (within A or A′). The 4H-chromene cores are parallel within A or A′, but make a dihedral angle of 88.6 (1)° between A and A′.