The mol-ecule of the title compound, C(18)H(18)Cl(2)N(2)O(2), lies across a crystallographic inversion centre and adopts an E configuration with respect to the azomethine C=N bond. The imino group is coplanar with the aromatic ring. Within the mol-ecule, the planar units are parallel, but extend in opposite directions from the dimethyl-ene bridge. In the crystal structure, the title compound exhibits a layer packing structure via weak π-π stacking inter-actions [inter-molecular plane-to-plane distances between adjacent aromatic rings are 3.461 (3) Å]. Mol-ecules in each layer are linked by inter-molecular C-H⋯O hydrogen-bonding inter-actions.

DOI: 10.1107/S1600536808024355

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@inproceedings{Ren200822Dichloro11butane14diyldioxybisnitril, title={2,2′-Dichloro-1,1′-[(butane-1,4-diyldi­oxy)bis­(nitrilo­methyl­idyne)]dibenzene}, author={Zong-Li Ren and Wen-Kui Dong and Wen-Juan Bai and Xue-Ni He and Li Wang}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2008} }