Chemically modified electrode based on an organometallic model of the [FeFe] hydrogenase active center
Résumé
A dithiolate-bridged diiron complex containing succinimide ester has been grafted on glassy carbon electrodes modified with either amine or aminophenyl groups. Covalent attachment of the complex through amide binding is confirmed by the linear dependence of the reduction peak current on the voltammetric scan rate. Attachment using the aminophenyl-modified electrode leads to better behaved cyclic voltammograms. The effect of addition of acid on the voltammetric response is also reported. © 2005 Elsevier B.V. All rights reserved.
Mots clés
Acids
Cyclic voltammetry
Enzymes
Esters
Organometallics
Reduction
Dithiolate-bridged diiron complex
Glassy carbon electrodes
Hydrogenase
Reduction peak currents
Electrochemical electrodes
acid
amine
carbon
diiron dehydrogenase
dithiolate
ester derivative
organometallic compound
oxidoreductase
phenyl group
thiol derivative
unclassified drug
addition reaction
article
chemical modification
covalent bond
cyclic potentiometry
electric current
electric model
electrode
linear system