New multi-charged viologen derivatives. Part 1. Electrochemical behaviour in Nafion films

Zeev Porat; Yves M. Tricot; Israel Rubinstein; Baruch Zinger

doi:10.1016/0022-0728(91)80071-W

New multi-charged viologen derivatives. Part 1. Electrochemical behaviour in Nafion films

Zeev Porat, Yves M. Tricot, Israel Rubinstein, Baruch Zinger

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The electrochemical behaviour of new viologen derivatives, C₅V³⁺ and C₅V⁴⁺, has been studied in Nafion^® films on gold electrodes. The new viologens bear extra positive charges with respect to methyl viologen (MV²⁺). They remain positively charged upon two-electron reduction, while MV²⁺ is reduced to a neutral form under similar conditions. This fundamental distinction is shown to induce a substantial difference in the voltammetric behaviour and stability of C₅V³⁺ and C₅V⁴⁺ in Nafion films compared with MV²⁺. These differences are discussed in terms of a model suggested previously for the electrochemical behaviour of electrode couples comprising neutral/cationic forms in Nafion. The model considers the influence of the inner structure of the polymer on electrochemical reactions occurring therein.

Original language	English
Pages (from-to)	217-223
Number of pages	7
Journal	Journal of Electroanalytical Chemistry
Volume	315
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(91)80071-W
State	Published - 10 Oct 1991
Externally published	Yes

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

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title = "New multi-charged viologen derivatives. Part 1. Electrochemical behaviour in Nafion films",

abstract = "The electrochemical behaviour of new viologen derivatives, C5V3+ and C5V4+, has been studied in Nafion{\textregistered} films on gold electrodes. The new viologens bear extra positive charges with respect to methyl viologen (MV2+). They remain positively charged upon two-electron reduction, while MV2+ is reduced to a neutral form under similar conditions. This fundamental distinction is shown to induce a substantial difference in the voltammetric behaviour and stability of C5V3+ and C5V4+ in Nafion films compared with MV2+. These differences are discussed in terms of a model suggested previously for the electrochemical behaviour of electrode couples comprising neutral/cationic forms in Nafion. The model considers the influence of the inner structure of the polymer on electrochemical reactions occurring therein.",

author = "Zeev Porat and Tricot, \{Yves M.\} and Israel Rubinstein and Baruch Zinger",

year = "1991",

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doi = "10.1016/0022-0728(91)80071-W",

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journal = "Journal of Electroanalytical Chemistry",

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T1 - New multi-charged viologen derivatives. Part 1. Electrochemical behaviour in Nafion films

AU - Porat, Zeev

AU - Tricot, Yves M.

AU - Rubinstein, Israel

AU - Zinger, Baruch

PY - 1991/10/10

Y1 - 1991/10/10

N2 - The electrochemical behaviour of new viologen derivatives, C5V3+ and C5V4+, has been studied in Nafion® films on gold electrodes. The new viologens bear extra positive charges with respect to methyl viologen (MV2+). They remain positively charged upon two-electron reduction, while MV2+ is reduced to a neutral form under similar conditions. This fundamental distinction is shown to induce a substantial difference in the voltammetric behaviour and stability of C5V3+ and C5V4+ in Nafion films compared with MV2+. These differences are discussed in terms of a model suggested previously for the electrochemical behaviour of electrode couples comprising neutral/cationic forms in Nafion. The model considers the influence of the inner structure of the polymer on electrochemical reactions occurring therein.

AB - The electrochemical behaviour of new viologen derivatives, C5V3+ and C5V4+, has been studied in Nafion® films on gold electrodes. The new viologens bear extra positive charges with respect to methyl viologen (MV2+). They remain positively charged upon two-electron reduction, while MV2+ is reduced to a neutral form under similar conditions. This fundamental distinction is shown to induce a substantial difference in the voltammetric behaviour and stability of C5V3+ and C5V4+ in Nafion films compared with MV2+. These differences are discussed in terms of a model suggested previously for the electrochemical behaviour of electrode couples comprising neutral/cationic forms in Nafion. The model considers the influence of the inner structure of the polymer on electrochemical reactions occurring therein.

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U2 - 10.1016/0022-0728(91)80071-W

DO - 10.1016/0022-0728(91)80071-W

M3 - Article

AN - SCOPUS:0004675607

SN - 0022-0728

VL - 315

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JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

New multi-charged viologen derivatives. Part 1. Electrochemical behaviour in Nafion films

Abstract

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