PMID: 11931972Apr 5, 2002Paper

Comparative studies on the iron chelators O-TRENSOX and TRENCAMS: selectivity of the complexation towards other biologically relevant metal ions and Al(3+)

Journal of Inorganic Biochemistry
Frédéric BiasoGuy Serratrice

Abstract

Complexation constants have been determined by potentiometric titration and spectrophotometric measurements for several biologically relevant divalent metals (Ca(2+), Cu(2+), Zn(2+)) as well as Al(3+) with the sulfonated tris(8-hydroxyquinolinate) tripodal ligand O-TRENSOX. The values demonstrate great selectivity of O-TRENSOX for Fe(3+) according to the sequence Fe(3+) >Cu(2+)>Zn(2+)>Ca(2+). This selectivity is compared to that shown by tris(hydroxamate) and tris(catecholate) ligands. (1)H NMR spectroscopy of the diamagnetic complexes have been carried out in (2)H(2)O solutions.

Citations

Mar 20, 2012·Antioxidants & Redox Signaling·Angelica M MerlotDes R Richardson
Jul 15, 2006·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Amaury du Moulinet d'HardemareJean-Louis Pierre
Jul 24, 2008·Fish Physiology and Biochemistry·Cheng WuFashui Hong
Jan 11, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Krassimira P Guerra, Rita Delgado

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