5-Amino-1-phenyl-3-trifluoromethyl-1H-pyrazole-4-carboxylic acid

5-Amino-1-phenyl-3-trifluoromethyl-1H-pyrazole-4-carboxylic acid

In the title compound, C11H8F3N3O2, there are two molecules in the asymmetric unit wherein the phenyl rings make dihedral angles of 65.3 (2) and 85.6 (2)° with the pyrazole rings. In the crystal, pairs of molecules are held together by O—H...O h...

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Bibliographic Details
Main Authors: Francesco Caruso, Maria Valeria Raimondi, Giuseppe Daidone, Claudio Pettinari, Miriam Rossi
Format: Article
Language:English
Published: International Union of Crystallography 2009-09-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809032188
Description
Summary:In the title compound, C11H8F3N3O2, there are two molecules in the asymmetric unit wherein the phenyl rings make dihedral angles of 65.3 (2) and 85.6 (2)° with the pyrazole rings. In the crystal, pairs of molecules are held together by O—H...O hydrogen bonds between the carboxyl groups, forming a centrosymmetric dimer with an R22(8) motif. Intramolecular N—H...O interactions are also present.
ISSN:1600-5368

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