Estimation of formation constants of ternary Cu(II) complexes with mixed amino acid enantiomers based on ligand exchange by capillary electrophoresis

被引：27

作者：

Chen, ZL ^{[1
]}

Uchiyama, K ^{[1
]}

Hobo, T ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Appl Chem, Tokyo 1920397, Japan

来源：

ANALYTICAL SCIENCES | 2000年 / 16卷 / 08期

关键词：

D O I：

10.2116/analsci.16.837

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Based on the principle of ligand exchange, a new method for estimating the formation constants of ternary Cu(II) complexes with mixed amino acid enantiomers has been proposed by capillary electrophoresis. As examples, the formation constants of four complexes, namely (L-OH-Pro)Cu(II)(D-Phe), (L-OH-Pro)Cu(II)(L-Phe), (L-OH-Pro)Cu(II)(D-Trp) and (L-OH-Pro)Cu(II) (L-Trp), were estimated by this method. The dependence of stability of complexes on the stereo-selectivity and the possibility of predicting the enantiomer migration order from complex stability has been discussed.

引用

页码：837 / 841

页数：5

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