7-Fluoro-4-oxochromene-3-carbaldehyde

Acta Crystallogr Sect E Struct Rep Online. 2011 Apr 1;67(Pt 4):o766. doi: 10.1107/S1600536811007045. Epub 2011 Mar 2.

Abstract

In the title compound, C(10)H(5)FO(3), the chromenone ring is essentially planar, with a maximum deviation of 0.039 (1) Å. The dihedral angle between the fluoro-subsituted benzene ring and the pyran ring is 1.92 (4)°. In the crystal, mol-ecules are connected via weak inter-molecular C-H⋯O hydrogen bonds, forming supra-molecular ribbons along the b axis. These ribbons are stacked down the a axis.