5-Chloro-1H-indole-3-carboxylic acid

5-Chloro-1H-indole-3-carboxylic acid

In the title compound, C9H6ClNO2, the carboxyl group is twisted from the indole ring system by 9.00 (8)°. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R22(8) loops and N—H...O hydrogen bonds link the dimers...

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Bibliographic Details
Main Authors: Xue-Lian Han, Yang-Hui Luo
Format: Article
Language:English
Published: International Union of Crystallography 2012-01-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536811053384
Description
Summary:In the title compound, C9H6ClNO2, the carboxyl group is twisted from the indole ring system by 9.00 (8)°. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R22(8) loops and N—H...O hydrogen bonds link the dimers into (001) sheets. Aromatic π–π stacking interactions [centroid–centroid distance = 3.7185 (12) A °] are also observed.
ISSN:1600-5368

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