Effect of Water–Ethanol Solvents on the Protonation Constants of Cryptand[2.2.2]
- Авторы: Isaeva V.A.1, Sharnin V.A.1
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Учреждения:
- Ivanovo State University of Chemistry and Technology
- Выпуск: Том 92, № 4 (2018)
- Страницы: 710-713
- Раздел: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/169962
- DOI: https://doi.org/10.1134/S0036024418040088
- ID: 169962
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Аннотация
The protonation constants of cryptand[2.2.2] are determined potentiometrically at 298 K in water–ethanol solvents of variable composition. An increase in the concentration of a solution’s nonaqueous component reduces the equilibrium constants of the reactions of mono- and biprotonated cryptand[2.2.2] formation. The contribution from the resolvation of reagents to the change in the Gibbs energy of the studied reactions is estimated. The reduction in the protonation constants of cryptand[2.2.2] in water–ethanol solvents is mainly due to enhancement of the solvation of protons in water–ethanol mixtures.
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Об авторах
V. Isaeva
Ivanovo State University of Chemistry and Technology
Автор, ответственный за переписку.
Email: kvol1969@gmail.com
Россия, Ivanovo, 153000
V. Sharnin
Ivanovo State University of Chemistry and Technology
Email: kvol1969@gmail.com
Россия, Ivanovo, 153000
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