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TEMPO Monolayers on Si(100) Electrodes: Electrostatic Effects by the Electrolyte and Semiconductor Space-Charge on the Electroactivity of a Persistent Radical

Zhang, Long; Vogel, Yan Boris; Noble, Dr Benjamin; Gonçales, Vinicius R; Darwish, Nadim; Brun, Anton Le; Gooding, J Justin; Wallace, Gordon G; Coote, Michelle; Ciampi, Simone


This work demonstrates the effect of electrostatic interactions on the electroactivity of a persistent organic free radical. This was achieved by chemisorption of molecules of 4-azido-2,2,6,6-tetramethyl-1-piperdinyloxy (4-azido-TEMPO) onto monolayer-modified Si(100) electrodes using a two-step chemical procedure to preserve the open-shell state and hence the electroactivity of the nitroxide radical. Kinetic and thermodynamic parameters for the surface electrochemical reaction are investigated...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Journal of the American Chemical Society
DOI: 10.1021/jacs.6b04788
Access Rights: Open Access

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