Standard thermodynamic functions of complex formation between Cu2+ and glycine in aqueous solution

被引：4

作者：

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

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

机构：

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

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 87卷 / 05期

关键词：

Cu(II) complexes with glycine; thermodynamic functions of formation; calorimetry; THERMOCHEMISTRY; WATER; IONS;

D O I：

10.1134/S0036024413050087

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 of the interaction of copper(II) solutions with aminoacetic acid (glycine) are measured by the direct calorimetry at 298.15 K and ionic strengths of 0.5, 1.0, and 1.5 against a background of potassium nitrate. Standard enthalpy values for reactions of the formation of aminoacetic acid copper complexes in aqueous solutions are obtained using an equation with a single individual parameter by extrapolating it to zero ionic strength. The standard thermodynamic characteristics of complex formation in the Cu2+-glycine system are calculated. It is shown that glycine-like coordination is most likely in Cu(II) complexes with L-asparagine, L-glutamine, and L-valine.

引用

页码：763 / 766

页数：4

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