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Copper(I), silver(I) and gold(I) solvation in nitriles

โœ Scribed by A. Lewandowski; J. Malinska

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
277 KB
Volume
34
Category
Article
ISSN
0013-4686

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โœฆ Synopsis

The formal standard potentials of the Cu/Cu', Cu/Cu'+, Ag/Ag+ and Au/Au+ couples have been measured in acctonitrile, propionitrile and benzonitrile in 0.1 mol drne3 tetraethylammonium perchlorate medium at 25ยฐC. The emfdata were used to estimate the Gibbs free energies of Cu*, Cu2*, Ag+ and Au+ transfer from water to nitriles. Determined transfer energies are negative for Cu+, Ag+ and Au+ and positive for Cu'+. The disproportionation constant K,= [Cu2+]/[Cu+]' has been calculated for all nitriles studied. The results are discussed in terms of ionic salvation.

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