Journal article
Medium effects on the redox properties of tris(2,2′-bipyridyl)ruthenium complexes
Inorganica Chimica Acta, v 204(2)
1993
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Abstract
The electrochemisty of the 2,2′-bipyridyl ruthenium complexes [Ru(Bipy)
3]
n±
has been examined in a series of solvents with varying dielectric constant. The potential separation between the +1/0 and 0/−1 redox steps increases with decreasing solvent polarity and decreasing ionic strength of the supporting electrolyte. Electrochemically generated [Ru(Bipy)
3]
n
(where
n = 0 or −1) is kinetically labile in these low oxidation states and capable of reacting with the very high dielectric solvent
N-methylacetamide via an E
rC
i mechanism;
k
f for the following chemical reaction is 0.31±0.15 s
−1. Relationship is drawn between the dependence of the [Ru(Bipy)
3] potentials on solvent dielectric and the effect of local dielectric on protein redox potentials, and comment is made also on the solvent dependence of the potential of the ferricenium/ferrocene couple.
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Details
- Title
- Medium effects on the redox properties of tris(2,2′-bipyridyl)ruthenium complexes
- Creators
- Michael R. McDevitt - Drexel UniversityAnthony W. Addison - Drexel University
- Publication Details
- Inorganica Chimica Acta, v 204(2)
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:A1993KP38000002
- Scopus ID
- 2-s2.0-0001153605
- Other Identifier
- 991019174908504721
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Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Chemistry, Inorganic & Nuclear