Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple

Tai-Chu Lau; Sophia L. L. Kong

doi:10.1039/DT9950002221

Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple

Tai-Chu Lau, Sophia L. L. Kong

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

6 Citations (Scopus)

Abstract

The kinetics of the reduction of perruthenate(VII) by [Fe(CN)₆]^4- and [W(CN)₈]^4- and the oxidation of ruthenate(VI) by [Mo(CN)₈]^3- and [Ru(CN)₆]^3- have been studied in aqueous alkaline solutions using stopped-flow techniques. The cross-reaction data have been treated according to the Marcus relations and yield a self-exchange rate constant of 10 ± 5 dm³ mol^-1 s^-1 (25.0°C, I = 1.0 mol dm^-3) for the perruthenate(VII)-ruthenate(VI) couple. This rather slow self-exchange rate is discussed in terms of possible structural differences between perruthenate(VII) and ruthenate(VI) in alkaline solution.

Original language	English
Pages (from-to)	2221-2223
Journal	Journal of the Chemical Society, Dalton Transactions
Issue number	13
DOIs	https://doi.org/10.1039/DT9950002221
Publication status	Published - 1995

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title = "Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple",

abstract = "The kinetics of the reduction of perruthenate(VII) by [Fe(CN)6]4- and [W(CN)8]4- and the oxidation of ruthenate(VI) by [Mo(CN)8]3- and [Ru(CN)6]3- have been studied in aqueous alkaline solutions using stopped-flow techniques. The cross-reaction data have been treated according to the Marcus relations and yield a self-exchange rate constant of 10 ± 5 dm3 mol-1 s-1 (25.0°C, I = 1.0 mol dm-3) for the perruthenate(VII)-ruthenate(VI) couple. This rather slow self-exchange rate is discussed in terms of possible structural differences between perruthenate(VII) and ruthenate(VI) in alkaline solution.",

author = "Tai-Chu Lau and Kong, {Sophia L. L.}",

year = "1995",

doi = "10.1039/DT9950002221",

language = "English",

pages = "2221--2223",

journal = "Journal of the Chemical Society, Dalton Transactions",

issn = "1470-479X",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple

AU - Lau, Tai-Chu

AU - Kong, Sophia L. L.

PY - 1995

Y1 - 1995

N2 - The kinetics of the reduction of perruthenate(VII) by [Fe(CN)6]4- and [W(CN)8]4- and the oxidation of ruthenate(VI) by [Mo(CN)8]3- and [Ru(CN)6]3- have been studied in aqueous alkaline solutions using stopped-flow techniques. The cross-reaction data have been treated according to the Marcus relations and yield a self-exchange rate constant of 10 ± 5 dm3 mol-1 s-1 (25.0°C, I = 1.0 mol dm-3) for the perruthenate(VII)-ruthenate(VI) couple. This rather slow self-exchange rate is discussed in terms of possible structural differences between perruthenate(VII) and ruthenate(VI) in alkaline solution.

AB - The kinetics of the reduction of perruthenate(VII) by [Fe(CN)6]4- and [W(CN)8]4- and the oxidation of ruthenate(VI) by [Mo(CN)8]3- and [Ru(CN)6]3- have been studied in aqueous alkaline solutions using stopped-flow techniques. The cross-reaction data have been treated according to the Marcus relations and yield a self-exchange rate constant of 10 ± 5 dm3 mol-1 s-1 (25.0°C, I = 1.0 mol dm-3) for the perruthenate(VII)-ruthenate(VI) couple. This rather slow self-exchange rate is discussed in terms of possible structural differences between perruthenate(VII) and ruthenate(VI) in alkaline solution.

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U2 - 10.1039/DT9950002221

DO - 10.1039/DT9950002221

M3 - RGC 22 - Publication in policy or professional journal

SN - 1470-479X

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EP - 2223

JO - Journal of the Chemical Society, Dalton Transactions

JF - Journal of the Chemical Society, Dalton Transactions

IS - 13

ER -

Electron-transfer reactions and the self-exchange rate of the perruthenate(VII)-ruthenate(VI) couple

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