6533b833fe1ef96bd129b9a9
RESEARCH PRODUCT
Electrochemistry of copper complexes with macrocyclic polyamines containing pyrazole units.
Enrique García-españaAntonio DoménechPilar NavarroCarlos Mirandasubject
Aqueous solutionMacrocyclic CompoundsSuperoxide DismutaseDopamineInorganic chemistryMolecular Mimicrychemistry.chemical_elementProtonationSquare wavePyrazoleGlassy carbonElectrochemistryCopperInorganic Chemistrychemistry.chemical_compoundchemistryPolymer chemistryElectrochemistryOrganometallic CompoundsPolyaminesPyrazolesTernary operationCopperdescription
The voltammetric behaviour of bi- and mono-nuclear complexes formed in solution by Cu(2+) 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 Cu(2+)-receptor-dopamine complexes exhibits significant differences with respect to the protection of the neurotransmitter from post-electron transfer cyclization reactions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-10-19 | Dalton transactions (Cambridge, England : 2003) |