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Issue 41, 2006
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Electrochemistry of copper complexes with macrocyclic polyamines containing pyrazole units

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Abstract

The voltammetric behaviour of bi- and mono-nuclear complexes formed in solution by Cu2+ with three polyazacyclophanes containing pyrazole units in aqueous solution is described. Cyclic and square wave voltammetric responses at glassy carbon electrodes indicate that the reduction of copper–macrocycle complexes in solution takes place in two successive one-electron per Cu transfer processes coupled with preorganization and protonation reactions that mimic the behaviour of superoxide dismutase. The electrochemistry of ternary Cu2+–receptor–dopamine complexes exhibits significant differences with respect to the protection of the neurotransmitter from post-electron transfer cyclization reactions.

Graphical abstract: Electrochemistry of copper complexes with macrocyclic polyamines containing pyrazole units

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Supplementary files

Article information


Submitted
23 May 2006
Accepted
11 Aug 2006
First published
30 Aug 2006

Dalton Trans., 2006, 4926-4935
Article type
Paper

Electrochemistry of copper complexes with macrocyclic polyamines containing pyrazole units

A. Doménech, E. García-España, P. Navarro and C. Miranda, Dalton Trans., 2006, 4926
DOI: 10.1039/B607296H

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