Research Article: 1H-Pyrrole-2-carboxylic acid

Date Published: May 01, 2009

Publisher: International Union of Crystallography

Author(s): Gui Hong Tang, Dong Dong Li, Gang Huang, Xing Yan Xu, Xiang Chao Zeng.

http://doi.org/10.1107/S1600536809014044

Abstract

In the title compound, C5H5NO2, the pyrrole ring and its carboxyl substituent are close to coplanar, with a dihedral angle of 11.7 (3)° between the planes. In the crystal structure, adjacent mol­ecules are linked by pairs of O—H⋯O hydrogen bonds to form inversion dimers. Additional N—H⋯O hydrogen bonds link these dimers into chains extending along the a axis.

Partial Text

For pyrroles sourced from marine organisms, see: Faulkner (2002 ▶). For the bioactivity of pyrrole derivatives, see: Banwell et al. (2006 ▶); Sosa et al. (2002 ▶). For related structures, see: Zeng (2006 ▶); Zeng et al. (2007 ▶). For graph-set motifs, see: Bernstein et al. (1995 ▶).

 

Source:

http://doi.org/10.1107/S1600536809014044

 

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