Отправить статью по E-mail Thermodynamics of the formation of Cu2+–glycyl-glycyl-glycine complex in water–ethanol solutions at 298 K
- Авторы: Pham Thi L.1, Usacheva T.R.2, Tukumova N.V.2, Koryshev N.E.2, Khrenova T.M.2, Sharnin V.A.2,3
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Учреждения:
- Institute of Tropical Technology
- Ivanovo State University of Chemistry and Technology
- Krestov Institute of Solution Chemistry
- Выпуск: Том 90, № 10 (2016)
- Страницы: 1960-1964
- Раздел: Physical Chemistry of Solutions
- URL: https://bakhtiniada.ru/0036-0244/article/view/168826
- DOI: https://doi.org/10.1134/S0036024416100113
- ID: 168826
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Аннотация
The stability constants of monoligand complexes of copper(II) ions with glycyl-glycyl-glycine zwitterions (triglycine, HL±) and triglycinate ions (L−) in a water–ethanol solvent with 0.0, 0.1, 0.3, and 0.5 mole fractions of ethanol at an ionic strength of 0.1 created by sodium perchlorate and temperature Т = 298.15 K are determined by means of potentiometric titration. It is found that an increase of ethanol content improves the stability of the investigated complexes, due mainly to the resolvation of ligands.
Об авторах
L. Pham Thi
Institute of Tropical Technology
Автор, ответственный за переписку.
Email: pham_lan@mail.ru
Вьетнам, Hanoi
T. Usacheva
Ivanovo State University of Chemistry and Technology
Email: pham_lan@mail.ru
Россия, Ivanovo, 153000
N. Tukumova
Ivanovo State University of Chemistry and Technology
Email: pham_lan@mail.ru
Россия, Ivanovo, 153000
N. Koryshev
Ivanovo State University of Chemistry and Technology
Email: pham_lan@mail.ru
Россия, Ivanovo, 153000
T. Khrenova
Ivanovo State University of Chemistry and Technology
Email: pham_lan@mail.ru
Россия, Ivanovo, 153000
V. Sharnin
Ivanovo State University of Chemistry and Technology; Krestov Institute of Solution Chemistry
Email: pham_lan@mail.ru
Россия, Ivanovo, 153000; Ivanovo, 153045
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