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EnglishQuercetin and its radicals were investigated at the B3LYP density functional level with the aim of determining the energetic and spectroscopic parameters and the factors that influence their antioxidant activity in the gas phase and in aqueous solution. The results indicated that the antioxidant ability of quercetin is mainly due to the orthodiphenolic moiety but also to the presence of the C=C double bond of the pyrone ring. Differences in the stability order of the isomers of quercetin’s radicals were found in going from vacuum to solvent. Hyperfine coupling constants were computed to help the interpretation of the intricate ESR spectrum of quercetin.
Density Functional computations of the energetic and spectroscopic parameters of quercetin and its radicals in the gas phase and in solvent / Leopoldini, M; Marino, Tiziana; Russo, N; Toscano, Marirosa. - In: THEORETICAL CHEMISTRY ACCOUNTS. - ISSN 1432-2234. - 111(2004), pp. 210-216.
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| Titolo: | Density Functional computations of the energetic and spectroscopic parameters of quercetin and its radicals in the gas phase and in solvent | |
| Autori: | ||
| Data di pubblicazione: | 2004 | |
| Rivista: | ||
| Citazione: | Density Functional computations of the energetic and spectroscopic parameters of quercetin and its radicals in the gas phase and in solvent / Leopoldini, M; Marino, Tiziana; Russo, N; Toscano, Marirosa. - In: THEORETICAL CHEMISTRY ACCOUNTS. - ISSN 1432-2234. - 111(2004), pp. 210-216. | |
| Handle: | http://hdl.handle.net/20.500.11770/140191 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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