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organic compounds
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In the title compound, C13H10Cl2N2O, the ring N atom and its three attached atoms are essentially coplanar with angles adding to 359.8°, indicating conjugation with the 2-formylacrylonitrile subunit. The aldehyde group is oriented to place the carbonyl O atom 2.02 (3) Å from the N—H hydrogen atom. Intramolecular N—H
O and C—HCl interactions occur. The geometry of the exocyclic double bond is Z. In the crystal, weak C—HN hydrogen bonds link the molecules into chains along [1
0].
O and C—HCl interactions occur. The geometry of the exocyclic double bond is Z. In the crystal, weak C—HN hydrogen bonds link the molecules into chains along [1
0].
