Thermodynamic parameters of the formation of deprotonated single-ligand complexes in the Cu(II)-triglycine system in aqueous solutions

被引：5

作者：

Gorboletova, G. G. ^{[1
]}

Metlin, A. A. ^{[1
]}

Bychkova, S. A. ^{[1
]}

机构：

[1] Ivanovo State Univ Chem & Technol, Ivanovo 153000, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2017年 / 91卷 / 12期

关键词：

triglycine; complexation; enthalpy;

D O I：

10.1134/S0036024417120093

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：

Heat effects arising from interactions between triglycine solutions and Cu(NO3)(2) solutions are studied at 298.15 K and ionic strengths of 0.2 to 1.0 (KNO3) via isothermal calorimetry. Using experimental data, enthalpies of formation are calculated for species CuH-1L, CuH-2L-, and CuH-3L2-, along with Delta(r) HA degrees, Delta(r) GA degrees, and Delta(r) SA degrees of the complexation process. A relationship is revealed between the structures of deprotonated single-ligand triglycine complexes of Cu(II) and the thermodynamic parameters of their formation.

引用

页码：2370 / 2376

页数：7

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