Abstract
In the title compound, C33H26F2N2O2, the piperidone ring adopts a half-chair conformation and the pyrrolidine rings adopt half-chair and and envelope conformations. The two benzene rings make dihedral angles of 29.58 (5) and 76.33 (5)degrees with the mean plane of the 1,2-dihydroacenaphthylene unit. An intramolecular O-H center dot center dot center dot N hydrogen bond helps to stabilize the molecular structure. In the crystal, intermolecular C-H center dot center dot center dot F hydrogen bonds link the molecules into [010] chains. Weak C-H center dot center dot center dot pi interactions are also observed.