A cautionary warning on the use of electrochemical measurements to calculate comproportionation constants for mixed-valence compounds

D'Alessandro, Deanna M., and Keene, F. Richard (2004) A cautionary warning on the use of electrochemical measurements to calculate comproportionation constants for mixed-valence compounds. Dalton Transactions, 2004 (23). pp. 3950-3954.

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Abstract

The redox potentials for successive oxidations in a series of ligand-bridged dinuclear ruthenium complexes are shown to be dependent on the identity of the anion used as the electrolyte in the electrochemical measurements. Since the differences between these redox potentials (∆Eox) are often used to calculate the comproportionation equilibrium constants (Kc) in mixed-valence species—and therefore the extent of inter-metal communication between the metal centres—the results demonstrate the need for extreme care in comparison of ∆Eox data and of Kc values derived from them.

Item ID: 1123
Item Type: Article (Research - C1)
ISSN: 1477-9234
Keywords: dinuclear; electrochemistry; comproportionation; anion; mixed-valence
Additional Information:

Copyright 2004 Royal Society of Chemistry.

Date Deposited: 03 May 2007
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030207 Transition Metal Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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