1-(4-Fluoro-phen-yl)-5-(4-methoxy-phen-yl)pyrazolidin-3-one

In the mol-ecule of the title compound, C₁₆H₁₅FN ₂O₂, the benzene rings are oriented at a dihedral angle of 88.61 (3)°. The five-membered ring adopts an envelope conformation. Intra-molecular C - H⋯N hydrogen bonds result in the formation of two planar five-membered rings. In the crystal structure, inter-molecular N - H⋯O and C - H⋯F hydrogen bonds link the mol-ecules, forming R ₂²(8) and R₂²(18) ring motifs. Weak C - H⋯π inter-actions may further stabilize the structure.