An electroactive nickel containing polymeric film obtained by electrochemical reduction of an aryl-nickel derivative |
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Authors: | Gilberto Schiavon Gianni Zotti Gino Bontempelli |
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Institution: | C.N.R. Istituto di Polarografia ed Elettrochimica Preparativa, c.so Stati Uniti 4, 35100 Padova, Italy;Istituto di Chimica Analitica, University of Padova, via Marzolo 1, 35131 Padova, Italy |
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Abstract: | The electrochemical reduction of Ni(PPh3)2(p-C6H4Br)Br] in acetonitrile results in a polymeric coating of a nickel-containing poly-p-phenylene, formulated as -Ni(p-C6H4)n-] (n=6?7) on the basis of elemental analysis, IR, UV, MS and ESCA measurements. This coating is found to undergo a two-electron reversible reduction and a one-electron reversible oxidation with a large potential window (3.6 V), without the polymeric film being destroyed. Moreover, the polymer obtained is shown to be electroactive towards dissolved reactants via permeation or mediated electron transfer, depending on the molecular size of the electroactive species employed. |
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