Insights into the coordination mode of quercetin with the Al(iii) ion from a combined experimental and theoretical study

Abstract

Combining potentiometric, spectroscopic and theoretical DFT computations we have studied the formation of the Al(III)–quercetin complex in ethanol solution. The possible complexation sites have been considered on the basis of all the experimental and theoretical tools used. Results supported proposing a 1 : 1 neutral complex and the possibility to have different isomers in solution.