Abstract
The extrathermodynamic assumption of Lejaille and Bessière that Δ1,2 log K (LMn+)=−ΔG tr (Mn+) in which K is stability constant and L is cryptand 2.2.2, 2 B 2 B 2, 2.2.1, or 2.1.1 has been tested in dipolar aprotic solvents for Mn+ being Li+, Na+, K+, Ag+, Tl+, and Ba2+. The relation has been found generally acceptable for the dipolar aprotic solvents propylene carbonate, acetonitrile, N,N-dimethylformamide and dimethylsulfoxide, provided the size of the ion is equal to or smaller than the cavity of the cryptand. The relation does not hold for the hydrogen bonded donating solvents, water, and methanol.
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Chantooni, M.K., Kolthoff, I.M. Relation between stability constants of metal ion cryptates in two solvents and the transfer activity coefficients of the metal ions. J Solution Chem 14, 1–12 (1985). https://doi.org/10.1007/BF00646725
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DOI: https://doi.org/10.1007/BF00646725