6,6'-Dimeth-oxy-2,2'-[p-phenyl-ene-bis(nitrilo-methyl-idyne)]diphenol chloro-form disolvate

Acta Crystallogr Sect E Struct Rep Online. 2009 Mar 6;65(Pt 4):o680-1. doi: 10.1107/S1600536809007302.

Abstract

The title compound, C(22)H(20)N(2)O(4)·2CHCl(3), a new Schiff base compound, lies across a crystallographic inversion centre. An intra-molecular O-H⋯N hydrogen bond generates a six-membered ring, producing an S(6) ring motif. Inter-molecular bifurcated C-H⋯O hydrogen bonds involving the two O atoms of the Schiff base ligand and the H atom of the chloro-form solvent of crystallization, generate an R(2) (1)(5) ring motif. The crystal structure is stabilized by inter-molecular C-H⋯π and π-π inter-actions [centroid to centroid distance = 3.6158 (10) Å]. In the crystal structure, mol-ecules are stacked down the c axis.