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Australian Journal of Chemistry Australian Journal of Chemistry Society
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RESEARCH ARTICLE

Electron-Transfer Reactions in Non-Aqueous Media. VI. A Temperature-Dependence Study of the Reduction of cis-[CoCl2(en)2]+ by Iron(II) in Me2SO

L Spiccia and DW Watts

Australian Journal of Chemistry 32(10) 2275 - 2281
Published: 1979

Abstract

The kinetics of the reduction of cis-[CoCl2(en)2] ± (en = ethylenediamine) by iron(II) in Me2SO have been studied at four temperatures. The rate law has the form

d[CoIII]/dt = kK [COIII][FeII]/(1+K[FII])

The pseudo-first-order rate constants determined at high [Fell] have been resolved into k and K, and their independent temperature dependence has been studied. The results are totally consistent with an inner-sphere electron-transfer process in which the precursor complex contains a double bridge using both the cis-chloro ligands and in which the iron atom is octahedrally coordinated.

https://doi.org/10.1071/CH9792275

© CSIRO 1979

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