Issue 38, 2006
From the journal:

Physical Chemistry Chemical Physics

Studying electron transfer through alkanethiol self-assembled monolayers on a hanging mercury drop electrode using potentiometric measurements

Meirav Cohen-Atiyaa  and  Daniel Mandler*a  

* Corresponding authors

a Department of Inorganic and Analytical Chemistry, The Hebrew University of Jerusalem, Jerusalem
E-mail: mandler@vms.huji.ac.il
Fax: +972-2-658-5319
Tel: +972-2-658-5831

Abstract

A new approach based on measuring the change of the open-circuit potential (OCP) of a hanging mercury drop electrode (HMDE), modified with alkanethiols of different chain length conducted in a solution containing a mixture of Ru(NH3)62+ and Ru(NH3)63+ is used for studying electron transfer across the monolayer. Following the time dependence of the OCP allowed the extraction of the kinetic parameters, such as the charge transfer resistance (Rct) and the electron transfer rate constant (ket), for different alkanethiol monolayers. An electron tunneling coefficient, β, of 0.9 Å−1 was calculated for the monolayers on Hg.

Graphical abstract: Studying electron transfer through alkanethiol self-assembled monolayers on a hanging mercury drop electrode using potentiometric measurements

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Article information

DOI
https://doi.org/10.1039/B609560G
Article type
Communication
Submitted
05 Jul 2006
Accepted
22 Aug 2006
First published
04 Sep 2006

Phys. Chem. Chem. Phys., 2006,8, 4405-4409

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Studying electron transfer through alkanethiol self-assembled monolayers on a hanging mercury drop electrode using potentiometric measurements

M. Cohen-Atiya and D. Mandler, Phys. Chem. Chem. Phys., 2006, 8, 4405 DOI: 10.1039/B609560G

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