Email this article Effect of the Composition of Ethanol–DMSO Solvents on the Stability of Silver(I) Complexes with 18-Crown-6
- Authors: Volkova M.A.1, Kuz’mina I.A.1, Usacheva T.R.1, Sharnin V.A.1, Arena G.2
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Affiliations:
- Department of General Chemical Technology
- Department of Chemical Sciences
- Issue: Vol 63, No 5 (2018)
- Pages: 687-690
- Section: Physical Chemistry of Solutions
- URL: https://journal-vniispk.ru/0036-0236/article/view/168709
- DOI: https://doi.org/10.1134/S0036023618050212
- ID: 168709
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Abstract
The effect of composition of ethanol–dimethyl sulfoxide (EtOH–DMSO) solvents (χDMSO = 0.0–1.0 mole fractions) on the stability of silver(I) complexes with 18-crown-6 ether (18C6) has been studied potentiometrically at 298.15 K. The increasing of DMSO concentrations in mixed solvents are shown to considerably reduce the stability of 18C6 complexes with silver(I) ion ([Ag18C6]+). A change in the solvation state of the central ion is suggested to be the key factor in shifting complexing equilibrium.
About the authors
M. A. Volkova
Department of General Chemical Technology
Author for correspondence.
Email: oxt703@isuct.ru
Russian Federation, Ivanovo, 153000
I. A. Kuz’mina
Department of General Chemical Technology
Email: oxt703@isuct.ru
Russian Federation, Ivanovo, 153000
T. R. Usacheva
Department of General Chemical Technology
Email: oxt703@isuct.ru
Russian Federation, Ivanovo, 153000
V. A. Sharnin
Department of General Chemical Technology
Email: oxt703@isuct.ru
Russian Federation, Ivanovo, 153000
G. Arena
Department of Chemical Sciences
Email: oxt703@isuct.ru
Italy, Catania, 95125
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