Thermodynamics of the Formation of Mixed Complexes of Nickel(II) Ions with Histidine and Diamines in an Aqueous Solution

被引：0
|
作者：
Pyreu, D. F. [1 ]
Nikitina, M. G. [1 ]
机构：
[1] Ivanovo State Univ, Ivanovo 153025, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2021年 / 95卷 / 11期
关键词：
mixed ligand complex formation; histidine; phenanthroline; calorimetry; denticity; TERNARY COPPER(II) COMPLEXES; EQUILIBRIUM-CONSTANTS; LIGAND COMPLEXES; METAL-COMPLEXES; TYROSINE; ETHYLENEDIAMINE; AMINES; RING;
D O I：
10.1134/S0036024421110169
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Calorimetry, spectrophotometry, and pH measurements are used to study the formation of mixed ligand complexes with 1,10-phenanthroline (Phen) and ethylenediamine (En) in Ni(II)-His-Phen(En) systems. The formation of mixed complexes with different stoichiometries is found, and the thermodynamic parameters (log K, Delta(r)G(0), Delta H-r, Delta S-r) of the reactions of their formation at 298.15 K and ionic strength I = 0.5 (KNO3) are calculated. The most likely form of the coordination of the amino acid residue in the composition of the mixed complexes is identified.
引用
收藏
页码：2238 / 2245
页数：8
相关论文
共 50 条
12345