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A Review on Coordination Properties of Al(III) and Fe(III) toward Natural Antioxidant Molecules: Experimental and Theoretical Insights
Authors:Luana Malacaria  Giuseppina Anna Corrente  Amerigo Beneduci  Emilia Furia  Tiziana Marino  Gloria Mazzone
Institution:Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, I-87036 Rende, CS, Italy; (L.M.); (G.A.C.); (A.B.); (E.F.); (T.M.)
Abstract:This review focuses on the ability of some natural antioxidant molecules (i.e., hydroxycinnamic acids, coumarin-3-carboxylic acid, quercetin, luteolin and curcumin) to form Al(III)- and Fe(III)-complexes with the aim of evaluating the coordination properties from a combined experimental and theoretical point of view. Despite the contributions of previous studies on the chemical properties and biological activity of these metal complexes involving such natural antioxidants, further detailed relationships between the structure and properties are still required. In this context, the investigation on the coordination properties of Al(III) and Fe(III) toward these natural antioxidant molecules might deserve high interest to design water soluble molecule-based metal carriers that can improve the metal’s intake and/or its removal in living organisms.
Keywords:natural antioxidants  Al(III) complexes  Fe(III) complexes  chelating ability  spectroscopic characterization  DFT
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