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Kinetics and mechanism of the reaction between N-and N,N′-methyl ethylenediamines and palladium(II) chloro complexes in aqueous acid medium

✍ Scribed by D. J. A. De Waal; W. Robb

Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
507 KB
Volume
6
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The substitution of N‐alkyl substituted ethylenediamines for chloride ions in the rapidly equilibrating system

has been investigated in aqueous acid medium. The kinetic data can be accommodated by the general rate law

where n = 0, 1, or 2 and m = 0, 1, or 2, depending on whether none, one, or two methyl groups are attached to the two nitrogen atoms of ethylenediamine. Reaction with the most heavily substituted ethylenediamine, namely, N~2~N~2~en discloses a change of the mentioned rate law to

on going from a lower to a higher chloride ion concentration range. This change in the mathematical form of the rate law can be explained in terms of an ion‐pair association of N~2~N~2~enH^+^ and free chloride ions.

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