Acta Cryst. (2012). E68, o2689
[ doi:10.1107/S1600536812034800 ]

4-Bromo-1H-pyrrole-2-carboxylic acid

L. Zheng, F. Hu, X. C. Zeng and K. P. Li

Abstract: In the title compound, C₅H₄BrNO₂, the non-H atoms of the pyrrole ring and the Br atom are approximately coplanar, with an r.m.s. deviation from the best fit plane of 0.025 (6) Å;. The dihedral angle between the plane of the carboxy group and this plane is 14.1 (2)°. In the crystal, O-HO hydrogen bonds link the molecules together, forming corrugated sheets parallel to the bc plane.

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