Research Article: 6-Fluoro-1H-indole-3-carb­oxy­lic acid

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Ming Lou, Yang-Hui Luo.


In the title compound, C9H6FNO2, all the non-H atoms are approximately coplanar, the carb­oxy O atoms deviating by 0.0809 and −0.1279 Å from the indole plane. In the crystal, O—H⋯O hydrogen bonds link the mol­ecules into dimers which are linked via N—H⋯O hydrogen bonds and π–π inter­actions [centroid–centroid distance = 3.680 (2) Å]

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For the origin of the material studied, see: Kunzer & Wendt (2011 ▶). For a related structure, see: Luo et al. (2011 ▶).