Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)


organic compounds



zq2144 scheme

Acta Cryst. (2012). E68, o233    [ doi:10.1107/S1600536811053906 ]

2-[(Z)-4,7-Dichloro-3,3-dimethyl-2,3-dihydro-1H-indol-2-ylidene]-3-oxopropanenitrile

M. Helliwell, M. M. Baradarani, R. Mohammadnejadaghdam, A. Afghan and J. A. Joule

Abstract: 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-H...Cl interactions occur. The geometry of the exocyclic double bond is Z. In the crystal, weak C-H...N hydrogen bonds link the molecules into chains along [1\overline10].


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