2,2'-{(1 E,1' E)-[Ethane-1,2-diylbis(aza-nylyl-idene)]bis-(methanylyl-idene)}bis-(4-iodo-phenol)

Abstract

The title compound, C₂₀H₁₄I₂N₂O₂, a di-iodo-Schiff base, crystallizes in space group Pbca with one mol-ecule per asymmetric unit. The mol-ecular structure reveals two intra-molecular O-H⋯N hydrogen bonds that give the mol-ecule a twisted structure with non-coplanar rings. In the crystal structure, the mol-ecular packing is stabilized by π-π stacking, hydrogen- and halogen-bonding (C-H⋯I; O⋯I) inter-actions.

Keywords: Schiff base; crystal structure; hydrogen bonding; π–π stacking.