2,4-Bis(3-fluoro-phen-yl)-3-aza-bicyclo-[3.3.1]nonan-9-one

The title compound, C20H19F2NO, exhibits a chair-chair conformation, with the aryl groups in the heterocycle in equatorial orientations and oriented at an angle of 33.35 (3)° to one another. A crystallographic mirror plane, passing through the N atom, the C and O atoms of the carbonyl group and the C atom in the 7-position, bis-ects the mol-ecule. The mol-ecular structure is stabilized by one C - H⋯N inter-action and the crystal structure is stabilized by a weak C - H⋯π inter-action.