Stability of coordination compounds of Ni2+ and Co2+ ions with succinic acid anion in water–ethanol solvents
- 作者: Tukumova N.V.1, Dieu Thuan T.T.2, Usacheva T.R.1, Koryshev N.E.1, Sharnin V.A.1,3
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隶属关系:
- Ivanovo State University of Chemistry and Technology
- Institute of Research & Development
- Krestov Institute of Solution Chemistry
- 期: 卷 91, 编号 4 (2017)
- 页面: 662-666
- 栏目: Physical Chemistry of Solutions
- URL: https://bakhtiniada.ru/0036-0244/article/view/169393
- DOI: https://doi.org/10.1134/S003602441704029X
- ID: 169393
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详细
Stability constants of the coordination compounds of nickel(II) and cobalt(II) ions with succinic acid anion in water–ethanol solvents are determined via potentiometric titration at ionic strength of 0.1 and at T = 298.15 K. It is found that logβ values of monoligand complexes of these ions and succinic acid anions rise along with the content of ethanol in solution (XEtOH = 0–0.7 mole fractions). Based on an analysis of the thermodynamic characteristics of the solvation of the reagents involved in complex formation, it is found that the increased stability of succinate complexes of nickel(II) and cobalt(II) ions in water–ethanol solvents is mainly determined by the weakening of the solvation of succinic acid anion (Y2−).
作者简介
N. Tukumova
Ivanovo State University of Chemistry and Technology
编辑信件的主要联系方式.
Email: oxt-503@isuct.ru
俄罗斯联邦, Ivanovo, 153000
Tran Dieu Thuan
Institute of Research & Development
Email: oxt-503@isuct.ru
越南, Da Nang
T. Usacheva
Ivanovo State University of Chemistry and Technology
Email: oxt-503@isuct.ru
俄罗斯联邦, Ivanovo, 153000
N. Koryshev
Ivanovo State University of Chemistry and Technology
Email: oxt-503@isuct.ru
俄罗斯联邦, Ivanovo, 153000
V. Sharnin
Ivanovo State University of Chemistry and Technology; Krestov Institute of Solution Chemistry
Email: oxt-503@isuct.ru
俄罗斯联邦, Ivanovo, 153000; Ivanovo, 153045
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