5-Amino-1-phenyl-1H-pyrazole-4-carboxylic acid
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چکیده
منابع مشابه
5-Amino-1-phenyl-1H-pyrazole-4-carboxylic acid
In the mol-ecule of the title compound, C(10)H(9)N(3)O(2), 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 intra-molecular N-H⋯O hydrogen bond stabilizes the planar conformation of the mol-ecule. The mol-ecules are linked into two-dimensional sheets by two strong inter-molecular N-H⋯N and O-H⋯O ...
متن کامل5-Amino-1-phenyl-3-trifluoromethyl-1H-pyrazole-4-carboxylic acid
In the title compound, C(11)H(8)F(3)N(3)O(2), there are two mol-ecules 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 mol-ecules are held together by O-H⋯O hydrogen bonds between the carboxyl groups, forming a centrosymmetric dimer with an R(2) (2)(8) motif. Intra-molecular N-H⋯O inter-actions are ...
متن کامل1-Allyl-3-amino-1H-pyrazole-4-carboxylic acid
The title compound, C(7)H(9)N(3)O(2), was prepared by alkaline hydrolysis of ethyl 1-allyl-3-amino-1H-pyrazole-4-carboxyl-ate. The crystal structure is stabilized by three types of inter-molecular hydrogen bond (N-H⋯O, N-H⋯N and O-H⋯N).
متن کامل1-(4-tert-Butylbenzyl)-3-phenyl-1H-pyrazole-5-carboxylic acid
In the title compound, C(21)H(22)N(2)O(2), the mean plane of the pyrazole ring makes dihedral angles of 18.80 (12) and 77.13 (5)°, respectively, with the mean planes of the phenyl and tert-butyl-benzyl rings. The carboxylate group is inclined at 8.51 (14)° with respect to the pyrazole ring. The crystal structure displays inter-molecular O-H⋯O hydrogen bonding, generating centrosymmetric dimers.
متن کامل5-Methyl-1-phenyl-1H-1,2,3-triazole-4-carboxylic acid
The title compound, C(10)H(9)N(3)O(2), was synthesized from azido-benzene and ethyl acetyl-acetate. A pair of hydrogen bonds [2.617 (2) Å] inter-connects a pair of the carboxyl groups, forming an R(2) (2)(8) inversion dimer, a frequent motif in carboxylic acids. In the title structure, the bonding H atom in the aforementioned O-H⋯O hydrogen bond is significantly shifted towards the acceptor O a...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808018394