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

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