TERNARY MIXED-LIGAND COMPLEXES OF COPPER(II) WITH ALPHA-AMINOALKYLPHOSPHONIC ACIDS AND AMINO-ACIDS

被引：0
|
作者：
NABIRKINA, EP
SOLOVEV, VP
RAEVSKII, OA
BELOV, YP
机构：
[1] Institute of Physiologically Active Substances, Academy of Sciences of the USSR, Chernogolovka
来源：
BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE | 1991年 / 40卷 / 03期
关键词：
D O I：
10.1007/BF00957982
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Formation of ternary mixed-ligand complexes of copper(II) with 16 alpha-amino acids and alpha-aminophosphonic acids (APA) with a 1:1:1 ratio of initial concentrations has been studied by potentiometric titration at 25-degrees-C and 0.1 M KC1 in aqueous solution. The complexes Cu(p)A(n)B(s)H(q) are formed in solution, where A and B are the deprotonated ligands. The stability of the mixed-ligand complexes (log-beta) increases and the equilibrium is displaced more towards their formation (DELTA-log K) as the hydrophobic nature of the ligands increases.
引用
收藏
页码：492 / 496
页数：5
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