5-Amino-1-phenyl-1H-pyrazole-4-carboxylic acid
oleh: Muhammad Zia-ur-Rehman, Mark R. J. Elsegood, Nosheen Akbar, Rahman Shah Zaib Saleem
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2008-07-01 |
Deskripsi
In the molecule of the title compound, C10H9N3O2, the pyrazole ring is approximately coplanar with the amino and carboxyl groups. The phenyl group is twisted by 48.13 (3)° relative to this plane. An intramolecular N—H...O hydrogen bond stabilizes the planar conformation of the molecule. The molecules are linked into two-dimensional sheets by two strong intermolecular N—H...N and O—H...O hydrogen bonds. The latter forms the classic carboxylic acid dimer motif.