Iron chelation by the powerful antioxidant flavonoid quercetin.

@article{Leopoldini2006IronCB,
  title={Iron chelation by the powerful antioxidant flavonoid quercetin.},
  author={Monica Leopoldini and N. Russo and S. Chiodo and M. Toscano},
  journal={Journal of agricultural and food chemistry},
  year={2006},
  volume={54 17},
  pages={
          6343-51
        }
}
Chelation of the bare and hydrated iron(II) cation by quercetin has been investigated at the DF/B3LYP level in the gas phase. Several complexed species arising from neutral and anionic forms of the ligand have been taken into account. Both 1:1 and 1:2 metal/flavonoid stoichiometries have been considered. Results indicate that among the potential sites of chelation present on quercetin, the oxygen atoms belonging to the 3-hydroxy and 4-oxo, and to the 5-hydroxy and 4-oxo groups, are the… Expand
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