Redox properties of the systems Eu(222)​3+​/Eu(222)​2+ and (222)​H22+​/H2, (222)​H+ in various solvents. Use as a potential reference - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Bulletin de la Societe Chimique de France Année : 1987

Redox properties of the systems Eu(222)​3+​/Eu(222)​2+ and (222)​H22+​/H2, (222)​H+ in various solvents. Use as a potential reference

Résumé

The Eu(222)​3+/Eu(222)​2+ (222 = cryptate 222) electrochem. system is reversible and rapid in H2O, MeOH, DMSO, DMF, MeCN and tetramethylurea and can be used as a potential ref. The (222)​H22+/H2, (222)​H+ system allows the measurement of the difference in basicity between those solvents. The assumption that γatEu(222)​3+ = γtEu(222)​2+ and γt(222)​H22+ = γt(222)​H+ (γ = activity coeff.) leads to results similar to those based upon the γtAsPh4+ = γtBPh4- extra thermodn. hypothesis.
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hal-01978432 , version 1 (11-01-2019)

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  • HAL Id : hal-01978432 , version 1

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Jacques Bessière, Lejaille Marie-France, Michel Perdicakis. Redox properties of the systems Eu(222)​3+​/Eu(222)​2+ and (222)​H22+​/H2, (222)​H+ in various solvents. Use as a potential reference. Bulletin de la Societe Chimique de France, 1987, 4, pp.594. ⟨hal-01978432⟩
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