Oxidation of butylamine and isobutylamine by diperodatocuprate(III) in alkaline medium - A kinetic and mechanistic study

Autor:	Jinhuan Shan, Qianqian Wang
Rok vydání:	2015
Předmět:	chemistry.chemical_compound Isobutylamine Reaction rate constant Chemistry Stereochemistry Butylamine Kinetics Inorganic chemistry Salt effect Kinetic energy
Zdroj:	European Journal of Chemistry. 6:174-177
ISSN:	2153-2257 2153-2249
DOI:	10.5155/eurjchem.6.2.174-177.1232
Popis:	The kinetics of oxidation of butylamine and isobutylamine by diperodatocuprate(III) (DPC) in alkaline medium has been studied spectrophotometrically in the temperatures range of 20-40 ℃. All data follow pseudo-first order reaction in [DPC] under experimental conditions. It was found that the reaction showed pseudo-first order with respect to DPC and 1 < n ap < 2 to reductant. The rate constant k obs increased with increase in [reductant], however, the k obs decreased with increase in [IO 4 - ] and [OH - ]. In addition, there was a negative salt effect. Through the determined experimentally found that the rate of isobutylamine was higher than butylamine. The reaction constants involved in the different steps of the mechanisms are calculated. Activation parameters, which were controlled by slow step of the mechanism are discussed and thermodynamic quantities are determined. Therefore, the activation parameters at 298.2 K were calculated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9dc92a8df2a8580dfb690f5cb5492b1 https://doi.org/10.5155/eurjchem.6.2.174-177.1232 Zobrazit plný text záznamu