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A microelectrode study of the reduction of phenyl-substituted ethenes in toluene/dimethylformamide mixtures

A microelectrode study of the reduction of phenyl-substituted ethenes in toluene/dimethylformamide mixtures
A microelectrode study of the reduction of phenyl-substituted ethenes in toluene/dimethylformamide mixtures
The voltammetry of trans-stilbene, triphenylethene, and tetraphenylethene has been investigated in DMF/ toluene mixtures containing Bu4NBF4 as a function of the electrolyte concentration, solvent composition and substrate concentration. The voltammetric data show that all three ethenes undergo reduction in two le(-) steps but the separation of the potentials for the two steps depends substantially on the medium as well as the structure of the ethenes. The behavior can be understood in terms of ion pairing phenomena.
radical-anions, tetraphenylethylene, disproportionation, voltammetry, electrolyte, kinetics
1520-5207
3182-3186
Geraldo, M.D.
1d4f1fc6-dedb-4054-b9d4-f1be48a86e93
Montenegro, M.I.
41167892-1c43-43a1-b9f3-4b7467671c39
Slevin, L.
d86c9f30-ece5-4cef-9af5-77f72428e175
Pletcher, D.
f22ebe69-b859-4a89-80b0-9e190e6f8f30
Geraldo, M.D.
1d4f1fc6-dedb-4054-b9d4-f1be48a86e93
Montenegro, M.I.
41167892-1c43-43a1-b9f3-4b7467671c39
Slevin, L.
d86c9f30-ece5-4cef-9af5-77f72428e175
Pletcher, D.
f22ebe69-b859-4a89-80b0-9e190e6f8f30

Geraldo, M.D., Montenegro, M.I., Slevin, L. and Pletcher, D. (2001) A microelectrode study of the reduction of phenyl-substituted ethenes in toluene/dimethylformamide mixtures. The Journal of Physical Chemistry B, 105 (16), 3182-3186. (doi:10.1021/jp002163f).

Record type: Article

Abstract

The voltammetry of trans-stilbene, triphenylethene, and tetraphenylethene has been investigated in DMF/ toluene mixtures containing Bu4NBF4 as a function of the electrolyte concentration, solvent composition and substrate concentration. The voltammetric data show that all three ethenes undergo reduction in two le(-) steps but the separation of the potentials for the two steps depends substantially on the medium as well as the structure of the ethenes. The behavior can be understood in terms of ion pairing phenomena.

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More information

Published date: 26 April 2001
Keywords: radical-anions, tetraphenylethylene, disproportionation, voltammetry, electrolyte, kinetics

Identifiers

Local EPrints ID: 19495
URI: http://eprints.soton.ac.uk/id/eprint/19495
ISSN: 1520-5207
PURE UUID: fbf9e073-004f-4359-854a-7eb531618892

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Date deposited: 15 Feb 2006
Last modified: 15 Jul 2019 19:27

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Contributors

Author: M.D. Geraldo
Author: M.I. Montenegro
Author: L. Slevin
Author: D. Pletcher

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