Kinetics And Mechanism of Osmium(VIII)-Catalyzed Oxidation of 1,4-Thioxane By Alkaline Hexacyanoferrate(III)

Journal Title, Volume, Page:

Transition Metal Chemistry August 2001, Volume 26, Issue 4-5, pp 461-464

Year of Publication:

2001

Link:

http://link.springer.com/article/10.1023%2FA%3A1011076327605

Authors:

Mohammed M. Al-Subu

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Preferred Abstract (Original):

The kinetics of oxidation of 1,4-thioxane (1,4-oxathiane) by alkaline K₃Fe(CN)₆ have been studied in the presence of Os^VIII as catalyst. The reaction is first order in hexacyanoferrate(III) and Os^VIII. The order in thioxane and OH⁻ is zero. While added salts and ethanol have a negligible effect on the oxidation rate, K₄Fe(CN)₆ retards it. On the basis of kinetic evidence, a mechanism has been proposed.

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Kinetics And Mechanism of Osmium(VIII)-Catalyzed Oxidation of 1,4-Thioxane By Alkaline Hexacyanoferrate(III)