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

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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.

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Correspondence to M. A. Volkova.

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Original Russian Text © M.A. Volkova, I.A. Kuz’mina, T.R. Usacheva, V.A. Sharnin, G. Arena, 2018, published in Zhurnal Neorganicheskoi Khimii, 2018, Vol. 63, No. 5, pp. 655–658.

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Volkova, M.A., Kuz’mina, I.A., Usacheva, T.R. et al. Effect of the Composition of Ethanol–DMSO Solvents on the Stability of Silver(I) Complexes with 18-Crown-6. Russ. J. Inorg. Chem. 63, 687–690 (2018). https://doi.org/10.1134/S0036023618050212

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  • DOI: https://doi.org/10.1134/S0036023618050212

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