Iron complexes aminocarboxylates

By far the most commonly used bleaching agents are aminocarboxylate complexes of iron(III). The potential of a simple iron complex redox system can be written as Eq. (93),... 

Schneppensieper T, Finkler S et al (2001) Tuning the reversible binding of NO to iron (II) aminocarboxylate and related complexes in aqueous solution. Eur J Inorg Chem 491-501... 

The kinetics of removal of iron(III) from its complexes with the aminocarboxylate-anthraquinone analytical reagent calcein and with the antitumor anthracycline doxorubicin by l,2-dimethyl-3-hydroxy-4-pyridinone (LI, (251) with R = R = Me) have been monitored. Rate constants for metal removal are almost independent of the concentration of the replacing ligand, indicating dissociative mechanisms they are approximately 1 x 10 s for displacement from doxorubin and between 12 x 10 s and 2 x 10 s from calcein. 

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