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DISSOCIATION KINETICS OF AN ETHYLENE-DINITRILO-N,N'-DIACETATO-N,N'-DI-3-PROPIONATO COMPLEX OF EUROPIUM(III)

被引：11
作者：
RIZKALLA, EN
CHOPPIN, GR
机构：
[1] Florida State University, Department of Chemistry, Tallahassee, Florida
来源：
JOURNAL OF COORDINATION CHEMISTRY | 1991年 / 23卷 / 1-4期
关键词：
EUROPIUM(III); POLYAMINOCARBOXYLATES; DISSOCIATION; KINETICS;
D O I：
10.1080/00958979109408240
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The kinetics of dissociation of EuENDPDA was studied by a stopped-flow technique with a Cu2+scavenger. The dissociation data indicated that EuENDPDA follows a similar dissociative mechanism as EuEDTA and other Eu-aminopolycarboxylate complexes. Both acid-dependent and acid-independent paths are present with a 100-fold increase in the acid catalyzed rate compared to that of EuEDTA. These results are discussed in terms of the relative stability of 5- and 6-membered chelate rings in the complexes. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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页码：33 / 41
页数：9
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