Thermodynamic Characteristics of the Resolvation of Glycylglycinate Ions and Their Contribution to the Change in Stability of Complexes with Cu(II) and Ni(II) in Aqueous-Organic Solvents

被引：2
|
作者：
Isaeva, V. A. [1 ]
Molchanov, A. S. [2 ]
Kipyatkov, K. A. [2 ]
Sharnin, V. A. [1 ]
机构：
[1] Ivanovo State Univ Chem & Technol, Ivanovo 153000, Russia
[2] Nekrasov Kostroma State Univ, Kostroma 156961, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2020年 / 94卷 / 01期
关键词：
glycylglycinate ions; resolvation; change in Gibbs energy; complexing; copper(II); nickel(II); water-ethanol and water-dimethylsulfoxide solvents; COPPER(II) IONS; GIBBS ENERGIES; WATER-ETHANOL; NICKEL(II); DIMETHYLSULFOXIDE; ENTHALPIES; SOLUBILITIES; SOLVATION; AMMONIUM; GLYCINE;
D O I：
10.1134/S0036024420010100
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：
Thermodynamic characteristics ( increment G, increment H, T increment S) of the resolvation of glycylglycine and its protonated and deprotonated forms in aqueous solutions of ethanol and dimethylsulfoxide are presented experimentally and calculated on the basis of original and literature data. The change in the Gibbs energy of the reactions of the formation of nickel(II) and copper(II) glycylglycinate complexes in water-ethanol and water-dimethylsulfoxide solvents is considered, and the solvation contributions of the reagents to the change in the stability of complex particles are estimated. Features of the changes in the thermodynamic characteristics of the solvation and complexing of glycylglycinate ions with d-metals in aqueous-organic mixtures are described.
引用
收藏
页码：13 / 17
页数：5
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