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Acta Cryst. (2012). E68, o145 [ doi:10.1107/S1600536811053384 ]
Abstract: 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-HO hydrogen bonds link the dimers into (001) sheets. Aromatic ![[pi]](/logos/entities/pi_rmgif.gif)
- stacking interactions [centroid-centroid distance = 3.7185 (12) A °] are also observed.
Online 17 December 2011
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