Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Absorption Spectra and Catalytic Behavior of the Copper(II) Chelates of Some Alkylated Ethylenediamines
Heijirô OjimaKôzô Sone
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1962 Volume 35 Issue 2 Pages 298-303


The absorption spectra of the copper chelates of ethylenediamine and several alkylated ethylenediamines were studied in their aqueous solutions, and an approximately linear relationship was found between the frequencies of their absorption maxima and the logarithms of their stability constants. The spectral changes caused by the addition of a strong base (sodium hydroxide) to these solutions, and the activities of these chelates to catalyze the chemilumi-nescent reaction of luminol with sodium peroxide in an alkaline solution, were also studied ; it was shown that the chelates with smaller stabilities show, in general, more drastic spectral changes and higher catalytic activities than those with larger stabilities.

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