Received 29 November 2011
aThe School of Chemistry, The University of Manchester, Manchester M13 9PL, England,bDepartment of Chemistry, Faculty of Science, University of Urmia, Urmia 57153-165, Iran, and cDepartment of Chemical Engineering, University of Urmia, Urmia 57153-165, Iran
Correspondence e-mail: firstname.lastname@example.org
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-HO 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 .
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: ZQ2144 ).
The authors are grateful to the University of Urmia for financial support of this work.
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