In the crystal of the title compound, C(16)H(12)Cl(2)N(2)O(2), the two C=O groups are anti to each other, while one of them is syn and the other is anti to their adjacent C-H bonds. The two benzene rings are oriented at an inter-planar angle of 56.4 (1)°, while the dihedral angles between the central amide group (N-C-C-C-C-N) and these rings are 3.6 (1) and 54.1 (1)°. An intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into infinite chains along the a axis.

DOI: 10.1107/S1600536811017636

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@inproceedings{Shakuntala2011, title={ N,N′-Bis(4-chloro­phen­yl)maleamide}, author={Katre Shakuntala and Sabine Foro and Basavalinganadoddy Thimme Gowda}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2011} }