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

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Jing Zhao, Yan Wang.


In the title mol­ecule, C9H6BrNO2, the dihedral angle between the –COOH group and the ring system is 6 (4)°. In the crystal, pairs of O—H⋯O hydrogen bonds link the mol­ecules into inversion dimers and these dimers are connected via N—H⋯O hydrogen bonds to form layers parallel to the (-101) plane.

Partial Text

For related literature, see: Lang et al. (2011 ▶); Luo et al. (2011 ▶).