(E)-4-Methyl-N′-(3-nitro­benzyl­idene)benzohydrazide

In the title compound, C₁₅H₁₃N₃O₃, the dihedral angle between the benzene rings is 1.01 (3)° and that between the nitro group and its attached ring is 5.99 (15)°. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds generating C(4) chains along [010].

(E)-N′-(3-Fluoro­benzyl­idene)-4-methyl­benzohydrazide

In the title compound, C₁₅H₁₃FN₂O, the dihedral angle between the benzene rings is 16.9 (2)°. The F atom and the O atom are in a syn conformation. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds to generate C(4) chains propagating along the b-axis direction.