UNSPECIFIED. (2001) Investigation of the kinetics of electron transfer processes involving fullerenes at liquid-liquid interfaces using scanning electrochemical microscopy: evidence, for Marcus inverted region behaviour. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 (9). pp. 1608-1612. ISSN 1472-779X

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Abstract

Electron transfer (ET) reactions between the anions of fullerenes (C-60 and C-70) in chlorobenzene (PhCl) and Fe(CN)(6)(3-) in an aqueous phase have been investigated using scanning electrochemical microscopy (SECM). Salts of the anion ClO4- were added to each phase to control the interfacial potential drop and maintain charge neutrality during the ET process. The rate constants of ET between C-60(-) and Fe(CN)(6)(3-) were similar to those between C-70(-) and Fe(CN)(6)(3-). Although the measured ET kinetics were found to depend on the interfacial potential drop; the rate constant for the oxidation of the fulleride anion (reduction of aqueous Fe(CN)(6)(3-)) decreased when the ClO4- concentration in the aqueous phase increased, even though this corresponds to an increase in driving force. It is suggested that this could be due to inverted region behaviour predicted by Marcus theory.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
Publisher:	ROYAL SOC CHEMISTRY
ISSN:	1472-779X
Date:	September 2001
Number:	9
Number of Pages:	5
Page Range:	pp. 1608-1612
Identification Number:	10.1039/b102734b
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/11724

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