Crystal structure of 3-{(E)-[(3,4-dichlorophenyl)imino]methyl}benzene-1,2-diol

Abstract

In the title Schiff base, C13H9Cl2NO2, which arose from the condensation of 3,4-dichloroaniline with 2,3-dihydroxybenzaldehyde, the dihedral angle between the aromatic rings is 44.74 (13)°. Intramolecular O—H...O and O—H...N hydrogen bonds close S(5) and S(6) rings, respectively. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R22(10) loops. A weak C—H...π interaction is also observed.

Keywords

• crystal structure
• benzene-1,2-diol
• Schiff base
• hydrogen bonding