Abstract
The formation of iron(III) complexes with chelating azidokojate anions L− was investigated in aqueous solutions as a function of the pH and the c(Fe3+):c(HL) molar ratio. Based on the stability constants, the distribution among the above complexes, [Fe(H2O)6]3+, and [Fe(H2O)5(OH)]2+ were calculated in solutions of various compositions. The complexes are redox stable in aqueous solutions both in the dark and in visible laboratory light. Properties of the investigated azidokojic acid and its iron(III) complexes are compared with those required for therapeutic applications as alternative iron chelators.
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