N′-(2-Hydroxy-3,5-diiodobenzylidene)-2-methoxybenzohydrazide

Abstract

The title compound, C15H12I2N2O3, was synthesized by the condensation of equimolar amounts of 3,5-diiodo­salicylaldehyde and 2-methoxy­benzohydrazide in a methanol solution. There are two independent mol­ecules, A and B, in the asymmetric unit. The dihedral angle between the two benzene rings is 30.2 (2)° for mol­ecule A and 21.7 (2)° for mol­ecule B. There are intra­molecular O—H⋯N and N—H⋯O hydrogen bonds in each mol­ecule. The crystal studied was an inversion twin with a 0.59 (3):0.41 (3) domain ratio.