INQUISAL   20936
INSTITUTO DE QUIMICA DE SAN LUIS "DR. ROBERTO ANTONIO OLSINA"
Unidad Ejecutora - UE
artículos
Título:
SPECTROSCOPIC AND THERMODYNAMIC STUDY OF CHRYSIN AND QUERCETIN COMPLEXES WITH Cu(II)
Autor/es:
FERRARI, GABRIELA V.; SANCHO, MATIAS; MUÑOZ, VANESA A.; MONTAÑA M. PAULINA
Revista:
JOURNAL OF CHEMICAL AND ENGINEERING DATA
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2016 vol. 61 p. 985 - 995
ISSN:
0021-9568
Resumen:
Chrysin and quercetin are natural polyphenolic compounds which present benefits in human health because of their biological properties.These flavonoids also have the capacity to complex a wide variety of metallic ions which could affect their bioactivity. In order to assay the complexant capacity of flavonoids, the metallic ion Cu(II) was selected. The formation of two flavonoid−Cu(II) complexes in ethanolic solutions were studied, and both complexes presented 2:1 L−M stoichiometries. The apparent formation constants for quercetin−Cu(II) are higher than those of chrysin−Cu(II) ones,suggesting that quercetin may act as a better analytical reagent than chrysin. A molecular modeling analysis was performed in order to gain insight into the spectroscopic properties of the complexes.