Abstract
In the title compound, C10H5FO3, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0071 Å), with the largest deviation from the mean plane [0.0203 (15) Å] being found for the ring C atom in the 2-position. In the crystal, molecules are linked into a three-dimensional architecture via C—H⋯O hydrogen bonds and π–π stacking interactions between the chromone units along the a-axis direction [centroid–centroid distance between the benzene and pyran rings = 3.707 (2) Å].
Highlights
In the title compound, C10H5FO3, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0071 Å), with the largest deviation from the mean plane [0.0203 (15) Å] being found for the ring C atom in the 2-position
Molecules are linked into a three-dimensional architecture via
Supporting information for this paper is available from the IUCr electronic archives (Reference: TK5307)
Summary
R factor = 0.036; wR factor = 0.106; data-to-parameter ratio = 14.2. C10H5FO3, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0071 Å), with the largest deviation from the mean plane [0.0203 (15) Å] being found for the ring C atom in the 2-position. C—H O hydrogen bonds and – stacking interactions between the chromone units along the a-axis direction [centroid–centroid distance between the benzene and pyran rings = 3.707 (2) Å]. Data collection: WinAFC Diffractometer Control Software (Rigaku, 1999); cell refinement: WinAFC Diffractometer Control. Software; data reduction: WinAFC Diffractometer Control Software; program(s) used to solve structure: SIR2008 (Burla et al, 2007); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku, 2010); software used to prepare material for publication: CrystalStructure.
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