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Acta Cryst. (2008). E64, o1756  [ doi:10.1107/S1600536808025506 ]


Y. Liu, F. Li and Y. Li

Abstract: In the molecule of the title compound, C17H8Cl2F8N2O3, the two aromatic rings are oriented at a dihedral angle of 50.12 (3)°. Intramolecular N-H...O, C-H...O and N-H...Cl hydrogen bonds result in the formation of two six- and one five-membered rings. The six-membered rings have flattened-boat conformations, while the five-membered ring adopts an envelope conformation. In the crystal structure, intermolecular N-H...O hydrogen bonds link the molecules into centrosymmetric dimers.

Online 13 August 2008

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