| Autor: |
Brooksby, Paula A., Anderson, Kelly H., Downard, Alison J., Abell, Andrew D. |
| Zdroj: |
The Journal of Physical Chemistry - Part C; April 2011, Vol. 115 Issue: 15 p7516-7526, 11p |
| Abstrakt: |
An investigation of the kinetics of electron transfer though a self-assembled monolayer containing long chain alkanethiol and β-peptide components and a terminating ferrocene group has been carried out at a polycrystalline gold electrode. Cyclic voltammetry and electrochemical impedance spectroscopy in aqueous and mixed aqueous−methanol solutions showed the rate of electron transfer varied from approximately 5 in water to 29 s−1in methanol. This difference is attributed to a change in the alkanethiol tilt angle in the film in response to hydrogen bonding disruption of the peptide to allow greater molecular motion during electron transfer. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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