Electrolyte tuning of electrode potentials: the one electron vs. two electron reduction of anthraquinone-2-sulfonate in aqueous media

The electrode potentials of quinone redox centres in aqueous solutions can be tuned by varying the electrolyte cation identity. The phenomenon is due to the ion pairing effect of the tetra-n-butylammonium cation with the semiquinone intermediate species.

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2011-11, Vol.47 (41), p.11426-11428
Main Authors: Li, Qian, Batchelor-McAuley, Christopher, Lawrence, Nathan S, Hartshorne, Robert S, Compton, Richard G
Format: Article
Language:English
Subjects:
Aqueous solutions
Cations
Electrode potentials
Electrolytes
Media
Quinones
Reduction (electrolytic)
Tuning
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Description
Summary:The electrode potentials of quinone redox centres in aqueous solutions can be tuned by varying the electrolyte cation identity. The phenomenon is due to the ion pairing effect of the tetra-n-butylammonium cation with the semiquinone intermediate species.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc14191k