Acta Cryst. (2012). E68, o2244-o2245
[ doi:10.1107/S1600536812028693 ]

4,6-Dichloro-2-((E)-{4-[(E)-3,5-dichloro-2-hydroxybenzylideneamino]butylimino}methyl)phenol

H. Kargar, R. Kia, A. Adabi Ardakani and M. N. Tahir

Abstract: The asymmetric unit of the title compound, C₁₈H₁₆Cl₄N₂O₂, comprises half of a potentially tetradentate Schiff base ligand. It is located about a twofold rotation axis that bisects the central C-C bond of the butane-1,4-diamine group. There are two intramolecular O-HN hydrogen bonds making S(6) ring motifs. In the crystal, molecules are linked by pairs of weak C-HCl interactions, forming inversion dimers, which are further connected by C-HO hydrogen bonds into two-dimensional frameworks that lie parallel to (001).

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