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Gallic acid
Anhydrous 3,4,5-trihydroxybenzoic acid, C(7)H(6)O(5), is essentially planar, with its non-H atoms exhibiting mean and maximum deviations from coplanarity of 0.014 and 0.0377 (5) Å, respectively. The C—C—C—OH torsion angle about the bond linking the carboxyl group to the benzene ring is −0.33 (10)°...
Autores principales: | , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3051435/ https://www.ncbi.nlm.nih.gov/pubmed/21523003 http://dx.doi.org/10.1107/S1600536811000262 |
Sumario: | Anhydrous 3,4,5-trihydroxybenzoic acid, C(7)H(6)O(5), is essentially planar, with its non-H atoms exhibiting mean and maximum deviations from coplanarity of 0.014 and 0.0377 (5) Å, respectively. The C—C—C—OH torsion angle about the bond linking the carboxyl group to the benzene ring is −0.33 (10)°. In the crystal, the –COOH groups form centrosymmetric hydrogen-bonded cyclic dimers [graph set R (2) (2)(8)] and the phenolic –OH groups participate in both intra- and intermolecular hydrogen bonds, forming a three-dimensional network structure. |
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