C24H25F2NO2, triclinic, P1 (no. 2), a = 6.1640(3) Å, b = 10.6400(5) Å, c = 16.2230(6) Å, α = 84.439(2)°, β = 83.312(2)°,γ = 84.643(2)°, V = 1048.1 Å3, Z= 2, Rgt(F) = 0.061, wRref(F) = 0.083, T= 150 K.