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

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Journal Title, Volume, Page: 
Transition Metal Chemistry August 2001, Volume 26, Issue 4-5, pp 461-464
Year of Publication: 
2001
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
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 OsVIII as catalyst. The reaction is first order in hexacyanoferrate(III) and OsVIII. 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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