2-(4-Fluorophenyl)-6-phenyltetrahydro-2H-thiopyran-4-one 1-oxide

Abstract

In the title compound, C17H15FO2S, a crystallographic mirror plane bisects the molecule, passing through O=S and C=O of the central ring, with statistical disorder of the F atom. Orientational disorder of the aromatic ring is also observed; the site occupancy factors are ca. 0.75 and 0.25. In the molecule, the thiopyran unit has a chair conformation; the geometries around the S and carbonyl C atoms are tetrahedral and planar, respectively.