Effect of the Composition of Ethanol–DMSO Solvents on the Stability of Silver(I) Complexes with 18-Crown-6

The effect of composition of ethanol–dimethyl sulfoxide (EtOH–DMSO) solvents (χ DMSO = 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 co...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2018-05, Vol.63 (5), p.687-690
Main Authors: Volkova, M. A., Kuz’mina, I. A., Usacheva, T. R., Sharnin, V. A., Arena, G.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composition effects
Dimethyl sulfoxide
Ethanol
Inorganic Chemistry
Physical Chemistry of Solutions
Solvation
Solvents
Stability
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Summary:The effect of composition of ethanol–dimethyl sulfoxide (EtOH–DMSO) solvents (χ DMSO = 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.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023618050212