Ruthenium(III)-catalysed oxidation of thiocyanate by periodate in aqueous alkaline medium; autocatalysis in catalysis

Ruthenium(III)-catalysed oxidation of thiocyanate by periodate in aqueous alkaline medium; autocatalysis in catalysis

The oxidation of thiocyanate by periodate has been studied in alkaline media. A micro quantity of Ru^sup III^ is sufficient to catalyse the reaction. The active catalytic species and oxidant in the reaction are understood to be [Ru(H^sub 2^O)^sub 5^OH]^sup 2+^ and IO^sup -^ ^sub 4^. The autocatalysi...

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Bibliographic Details
Published in:Transition metal chemistry (Weinheim) Vol. 25; no. 4; p. 394
Main Authors: Nandibewoor, Sharanappa T, Hiremath, Gouri A, Timmanagoudar, Prakash L
Format: Journal Article
Language:English
Published: Dordrecht Springer Nature B.V 01-01-2000
Online Access:Get full text
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Summary:The oxidation of thiocyanate by periodate has been studied in alkaline media. A micro quantity of Ru^sup III^ is sufficient to catalyse the reaction. The active catalytic species and oxidant in the reaction are understood to be [Ru(H^sub 2^O)^sub 5^OH]^sup 2+^ and IO^sup -^ ^sub 4^. The autocatalysis exhibited by one of the products, cyanate, is attributed to adduct formation between cyanate and periodate. A composite mechanism and rate law are proposed. The reaction constants involved in the mechanism are evaluated.[PUBLICATION ABSTRACT]
ISSN:0340-4285
1572-901X
DOI:10.1023/A:1007084709817