Acta Cryst. (2004). E60, o2082-o2084  [ doi:10.1107/S1600536804026030 ]

3-[(2,4,6-Trichloroanilino)carbonyl]prop-2-enoic acid

M. Parvez, S. Shahzadi, K. Shahid and S. Ali

Abstract: The crystal structure of the title compound, C₁₀H₆Cl₃NO₃, establishes that condensation of 2,4,6-trichloroaniline with maleic anhydride gives the title compound at room temperature. There are strong intermolecular N-HO hydrogen bonds [NO = 2.832  (2) and 2.867  (2)  Å], resulting in a hydrophobic region in the middle of the unit cell. The carboxyl groups adopt an anti-planar conformation and participate in intramolecular O-HO hydrogen bonds [both OO = 2.486  (2)  Å]. There are two molecules in the asymmetric unit.

Online 22 October 2004

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