Stability of lithium-15-crown-5 complex in nitrobenzene saturated with water

Authors
Makrlik, E Vanura, P Dankova, M
Citation
E. Makrlik et al., Stability of lithium-15-crown-5 complex in nitrobenzene saturated with water, Z PHYS CHEM, 212, 1999, pp. 107-111
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
ISSN journal
09429352 → ACNP
Volume
212
Year of publication
1999
Part
1
Pages
107 - 111
Database
ISI
SICI code
0942-9352(1999)212:<107:SOLCIN>2.0.ZU;2-K
Abstract
From extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium Li+(aq) + NaL+(nb) = LiL+(nb) Na+(aq) taking place in the two-phase water-nitrobenzene system (L = 15-cro wn-5; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K-e x(Li+,NaL+) = -1.0 +/- 0.1. Further, the stability constant of the 15-crown -5-lithium complex in nitrobenzene saturated with water was calculated for a temperature of 25 degrees C: log beta(nb)(LiL+) = 7.0 +/- 0.1.