2-(2-Fluorophenyl)-3-hydroxy-4H-chromen-4-one

Abstract

The asymmetric unit of the title compound, C15H9FO3, contains two independent molecules in which the fluorine-substituted benzene ring is twisted by 47.64 (3) and 56.02 (4)° relative to the 4H-chromenon skeleton. The hydroxyl group in each molecule is tilted from 4H-chromenon skeleton by 24.5 (1) and 16.1 (1)°, respectively. In the crystal, pairs of O—H...O hydrogen bonds form inversion dimers with an R22(10) graph-set motif.

Keywords

• crystal structure
• flavonol
• O—H...O hydrogen bonds
• inversion dimer