Electron transfer at a polynuclear oxidizing centre: Evidence of a stepwise mechanism in the reaction of [Co((OH) 2Co(en) 2) 3] 6+ with chromium(II)

Roderick D. Cannon; Soontaree Benjarvongkulchai; Amanda Gair; Mohamed I.M. Ibrahim; MIM IBRAHIM

doi:10.1016/S0277-5387(00)86005-2

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Electron transfer at a polynuclear oxidizing centre: Evidence of a stepwise mechanism in the reaction of [Co((OH) 2Co(en) 2) 3] 6+ with chromium(II)

Journal article

Peer reviewed

Electron transfer at a polynuclear oxidizing centre: Evidence of a stepwise mechanism in the reaction of [Co((OH) 2Co(en) 2) 3] 6+ with chromium(II)

Roderick D. Cannon, Soontaree Benjarvongkulchai, Amanda Gair, Mohamed I.M. Ibrahim and MIM IBRAHIM

Polyhedron, Vol.11(7), pp.739-743

1992

DOI: https://doi.org/10.1016/S0277-5387(00)86005-2

Abstract

The reduction of “Werner's hexol” cobalt(III) ion, [Co((OH) 2Co(en) 2) 3] 6+, by chromium(II) in aqueous acidic solution proceeds in discrete steps by way of the intermediate [Co(en) 2(OH 2) 2] 3+. The method of detection consists of enhancing the rate of the first step by chloride catalysis, and observing the kinetics at a wavelength at which the tetramer and the monomer have the same extinction coefficient per atom of cobalt.

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Title: Electron transfer at a polynuclear oxidizing centre: Evidence of a stepwise mechanism in the reaction of [Co((OH) 2Co(en) 2) 3] 6+ with chromium(II)
Creators - without role: Roderick D. Cannon - University of East Anglia
Soontaree Benjarvongkulchai - University of East Anglia
Amanda Gair - University of East Anglia
Mohamed I.M. Ibrahim
MIM IBRAHIM - King Abdulaziz University
Publication Details: Polyhedron, Vol.11(7), pp.739-743
Publisher: Elsevier Ltd
Identifiers: 9934999108331
Academic Unit: King Abdulaziz University
Language: English
Resource Type: Journal article