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

页码：492 / 496

页数：5

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