Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 12 (December 2012)

organic compounds

Acta Cryst. (2012). E68, o3472    [ doi:10.1107/S1600536812044297 ]


M. Schutte, C. Pretorius, H. G. Visser and A. Roodt

Abstract: The title compound [systematic name: 5-(trifluoro­meth­oxy)-1H-indole-2,3-dione], C9H4F3NO3, crystallized with two mol­ecules in the asymmetric unit. Inter­molecular N-H...O hydrogen bonds link the mol­ecules to form layers parallel to the ab plane. In addition, [pi]-[pi] stacking inter­actions are observed with a centroid-centroid distance of 3.721 (1) Å. The near planarity of the two isatin ring systems is illustrated by by the maximum deviations of 0.023 (1) and 0.025 (1) Å for the N atom in each case.

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