COPPER(II) COMPLEXES OF N,N'-BIS-(BETA-CARBAMOYLETHYL) ETHYLENEDIAMINE IN AQUEOUS-SOLUTION

被引:22
作者
WEI, LW
CHAO, MS
CHUNG, CS
机构
[1] Department of Chemistry, National Tsing Hua University Hsinchu
关键词
D O I
10.1002/jccs.197900027
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The interactions of the ligand N, N ‐bis‐(β‐carbamoylethyl)‐ethylenediamine (BCEN) with copper (II) in aqueous solution have been investigated by potentiometric and spectrophotometric techniques. The two protonation constants of the ligand at 25° in 0.2 M NaNO3are 105‐51and 105‐44 The quantitative equilibrium studies of the stepwise reactions which precede the formation of CuBCEN2+ and the Cu‐O to Cu‐N bond rearrangements at the two amide sites are described in detail. Electronic spectra of the copper (II) chelates formed are measured and discussed. Copyright © 1979 The Chemical Society Located in Taipei & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim, Germany
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页码:145 / 151
页数:7
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