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Bulletin of the Chemical Society of Ethiopia

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Kinetics of periodate oxidation of tris-(4,4'-dimethyl-2,2'-bipyridine) iron(II) in acid medium

E.T. Ayodele, A.A. Olajire, A.A. Olajire, S.O. Oladoye, S.O. Oladoye

Abstract


The kinetics and mechanism of periodate oxidation of the complex tris-(4,4'-dimethyl-2,2'-bipyridine) iron(II) in acid medium was investigated. The complex undergoes extensive protonation in acid medium. Both protonated and the unprotonated species undergo electron transfer reaction with the active periodate species such as IO3+ and H6IO6+. The protonated species forms an ion pair with IO3- and thus suggests an outer-sphere mechanism for the reaction.


(Received March 22, 2000; revised October 25, 2000)


Bull. Chem. Soc. Ethiop. 2000, 14(2), 175-184


Bulletin of the Chemical Society of Ethiopia. ISSN: 1011-3924



http://dx.doi.org/10.4314/bcse.v14i2.71975
AJOL African Journals Online