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Palladium(II) complexes of aliphatic amines and their oxidation by chloramine-T in perchloric acid medium

✍ Scribed by Neeti Grover; Neelu Kambo; Santosh K. Upadhyay

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 190 KB
Volume: 34
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.10087

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✦ Synopsis

Abstract

The formation of palladium(II) complexes with aliphatic amines and their oxidation by chloramine‐T in perchloric acid medium has been studied. The spectrophotometric studies showed the formation of 1:1 and 1:2 complexes between palladium(II) and amine in absence of HClO~4~. An increase in [HClO~4~] in reaction mixture suppresses the complex formation and in presence of [HClO~4~] ∼10^−3^ mol dm^−3^ only a 1:1 complex between palladium(II) and amine has been observed. The effect of Cl^−^ on the complex formation has also been studied.

Palladium(II)‐catalyzed oxidation of these amines by chloramine‐T showed a first‐order dependence of rate with respect to each—oxidant, substrate, catalyst, and H^+^. The mechanism consistent with kinetic data for the oxidation process has been proposed in absence as well as in presence of initial [Cl^−^]. © 2002 Wiley Periodicals, Inc. Int J Chem Kinet 34: 603–612, 2002

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