Crystal structure of methyl 2-[2,4-bis­(4-fluoro­phen­yl)-3-aza­bicyclo­[3.3.1]nonan-9-yl­idene]hydrazine­carboxyl­ate

In the title compound, C(22)H(23)F(2)N(3)O(2), the bicyclic ring system exists in a twin-chair conformation with an equatorial disposition of the 4-fluoro­phenyl groups on the heterocycle. These aromatic rings are inclined to one another by 19.4 (1)°. In the crystal, mol­ecules are linked by pairs of N—H⋯O and C—H⋯O hydrogen bonds into inversion dimers, incorporating R (1) (2)(7) and R (2) (2)(8) ring motifs; the same O atom accepts both hydrogen bonds. These dimers are further linked by a pair of C—H⋯F hydrogen bonds, enclosing R (2) (2)(28) ring motifs, forming supra­molecular chains along [010]. The NH group of the pyridine ring is not involved in hydrogen bonding, probably due to the steric hindrance of the fluoro­phenyl groups.