Standard thermodynamic functions of Co2+ complexation with glycine and L-histidine in aqueous solution
- 作者: Gorboletova G.1, Metlin A.1
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隶属关系:
- Ivanovo State University of Chemistry and Technology
- 期: 卷 90, 编号 2 (2016)
- 页面: 334-338
- 栏目: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/167712
- DOI: https://doi.org/10.1134/S0036024416010118
- ID: 167712
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详细
The enthalpies of the reactions between solutions of Co(NO3)2 and solutions of glycine (Gly) and L-histidine (His) are determined via direct calorimetry at different pH values and metal: ligand ratios using KNO3 as a background electrolyte (T = 298.15 K, I = 0.2–1.0). The enthalpy changes upon the formation of cobalt glycinate complexes and Co2+ mixed-ligand complex, viz., glycine–L-histidine, were calculated. The standard thermodynamic parameters (ΔrH°, ΔrG°, ΔrS°) of complexation are determined. The CoGlyHis complex is shown to be stable toward decomposition into homogeneous complexes.
作者简介
G. Gorboletova
Ivanovo State University of Chemistry and Technology
编辑信件的主要联系方式.
Email: gorboletova@mail.ru
俄罗斯联邦, Ivanovo, 153000
A. Metlin
Ivanovo State University of Chemistry and Technology
Email: gorboletova@mail.ru
俄罗斯联邦, Ivanovo, 153000