N'-(2-Chloro-5-nitro-benzyl-idene)isonicotinohydrazide

4-Chloro-N'-(2-hy-droxy-4-meth-oxy-benzyl-idene)benzohydrazide methanol monosolvate

The title compound, C₁₅H₁₃ClN₂O₃·CH₃OH, was synthesized by the condensation reaction of 2-hy­droxy-4-meth­oxy­benzaldehyde with 4-chloro­benzohydrazide in methanol. The Schiff base mol­ecule displays a trans configuration with respect to the C=N and C—N bonds. The dihedral angle between the two benzene rings is 5.3 (2)°. In the crystal, mol­ecules are linked by N—H⋯O and O—H⋯O hydrogen-bond inter­actions into chains running parallel to the a axis. An intra­molecular O—H⋯N hydrogen bond is observed.

N'-(2-Hydr-oxy-4-methoxy-benzyl-idene)isonicotinohydrazide

The title compound, C(14)H(13)N(3)O(3), was synthesized by the condensation reaction of 2-hydr-oxy-4-methoxy-benzaldehyde with isonicotinohydrazide in a methanol solution. The mol-ecule of the compound displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the benzene and the pyridine rings is 27.3 (2)°. In the crystal, mol-ecules are linked by N-H⋯N inter-actions into zigzag chains with graph-set notation C(7) along [010]. An intra-molecular O-H⋯N hydrogen bond is observed.