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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 9(65), p. o2173-o2173, 2009

DOI: 10.1107/s1600536809032188

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

Journal article published in 2009 by Francesco Caruso, Maria Valeria Raimondi, Giuseppe Daidone, Claudio Pettinari ORCID, Miriam Rossi ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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 R 2 2(8) motif. Intra­molecular N—H⋯O inter­actions are also present.