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Electrochemical Investigation of Iron (III) Complexes with Some Kojic Acid Derivatives

A. Kotočová, J. Makáňová, J. Šima, and M. Veverka

Department of Inorganic Chemistry, Faculty of Chemical Technology, Slovak University of Technology, SK-812 37 Bratislava

 

Abstract: The electrochemical reduction of [FeIIIL3] complexes, where L is anion of kojic acid, some kojic acid derivative, and maltol, has been investigated in methanol solution by cyclic voltammetry at a platinum electrode. The reduction of seven [FeIIIL3] complexes into [FeIIL3]- anions occurs at a potential from -0.66 V to -0.80 V vs. ferrocenium/ferrocene potential. The modification of the kojic acid with various substituents influences the redox properties of the studied complexes according to the ligand delocalization. The relative stability of the complexes β(FeII)/β(FeIII) was influenced by the degree of the ligand delocalization.

Full paper in Portable Document Format: 522a119.pdf

 

Chemical Papers 52 (2) 119–122 (1998)

Thursday, June 04, 2020

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