Spectroscopic and Thermodynamic Study of Chrysin and Quercetin Complexes with Cu(II)

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...