dc.creator | Ferrari, Gabriela Verónica | |
dc.creator | Pappano, Nora Beatriz | |
dc.creator | Montaña, Maria Paulina | |
dc.creator | Garcia, Norman Andino | |
dc.creator | Debattista, Nora Beatriz | |
dc.date.accessioned | 2019-12-27T18:10:24Z | |
dc.date.accessioned | 2022-10-15T06:42:28Z | |
dc.date.available | 2019-12-27T18:10:24Z | |
dc.date.available | 2022-10-15T06:42:28Z | |
dc.date.created | 2019-12-27T18:10:24Z | |
dc.date.issued | 2010-09 | |
dc.identifier | Ferrari, Gabriela Verónica; Pappano, Nora Beatriz; Montaña, Maria Paulina; Garcia, Norman Andino; Debattista, Nora Beatriz; Novel synthesis of 3,3′-dihydroxyflavone and apparent formation constants of flavonoid-Ga(III) Complexes; American Chemical Society; Journal of Chemical and Engineering Data; 55; 9; 9-2010; 3080-3083 | |
dc.identifier | 0021-9568 | |
dc.identifier | http://hdl.handle.net/11336/93121 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4356531 | |
dc.description.abstract | Flavonoids are a wide variety of polyphenolic compounds. They have many biological properties. They also exhibit a metallic ion complexation capacity, which is important since it has been found that biological properties these ligands present can be enhanced when complexation occurs. In this work four flavonoid-Ga(III) complexes were studied: 2′,4′,3- trihydroxychalcone-Ga(III), 2′,3-dihydroxychalcone-Ga(III), 3,7,3′-trihydroxyflavone-Ga(III), and 3,3′-dihydroxyflavone-Ga(III). All ligands were synthesized by our working group, contributing a novel, cheaper, and more simple way to obtain 3,3′-dihydroxyflavone. The stoichiometry of the complexes was determined using the Yoe-Jones method. Both chalcone-Ga(III) complexes presented 1:1 L:M stoichiometry; meanwhile flavone-Ga(III) complexes presented 2:1 L:M stoichiometry. The pK values were determined by means of a spectrophotometric method. Values obtained were: 2′,4′,3-trihydroxychalcone-Ga(III), pK = 4.35 ± 0.38; 2′,3-dihydroxychalcone-Ga(III), pK = 3.40 ± 0.17; 3,7,3′-trihydroxyflavone-Ga(III), pK = 7.74 ± 0.19; and 3,3′-dihydroxyflavone-Ga(III), pK = 8.46 ± 0.27. © 2010 American Chemical Society. | |
dc.language | eng | |
dc.publisher | American Chemical Society | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/je901091f | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/je901091f | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | flavonoids | |
dc.subject | formation constants | |
dc.subject | Ga (III) complexes | |
dc.subject | synthesis | |
dc.title | Novel synthesis of 3,3′-dihydroxyflavone and apparent formation constants of flavonoid-Ga(III) Complexes | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |