{"title":"Osmium(VIII) Catalysed Oxidation of Thiocyanate by Periodate in Aqueous Alkaline Medium","authors":"G. A. Hiremath, N. Halligudi, S. Nandibewoor","doi":"10.1515/irm-2000-0407","DOIUrl":null,"url":null,"abstract":"Abstract The oxidation of thiocyanate by periodate has been studied in alkaline media. A microamount of Os( VIII) is sufficient to catalyse the reaction. The active species of catalyst and oxidant in the reaction are understood to be OsO4 (OH)22- and IO-4. The autocatalysis exhibited by one of the products i.e., 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.","PeriodicalId":8996,"journal":{"name":"BioInorganic Reaction Mechanisms","volume":"28 1","pages":"301 - 308"},"PeriodicalIF":0.0000,"publicationDate":"2000-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BioInorganic Reaction Mechanisms","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/irm-2000-0407","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract The oxidation of thiocyanate by periodate has been studied in alkaline media. A microamount of Os( VIII) is sufficient to catalyse the reaction. The active species of catalyst and oxidant in the reaction are understood to be OsO4 (OH)22- and IO-4. The autocatalysis exhibited by one of the products i.e., 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.
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