Display options
Cite
Cocalia VA, Jensen MP, Holbrey JD, et al. Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents. Dalton Trans. 2005;(11):1966-71doi: 10.1039/b502016f.
Cocalia, V. A., Jensen, M. P., Holbrey, J. D., Spear, S. K., Stepinski, D. C., & Rogers, R. D. (2005). Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents. Dalton transactions (Cambridge, England : 2003), (11), 1966-71. https://doi.org/10.1039/b502016f
Cocalia, Violina A, et al. "Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents." Dalton transactions (Cambridge, England : 2003) vol. ,11 (2005): 1966-71. doi: https://doi.org/10.1039/b502016f
Cocalia VA, Jensen MP, Holbrey JD, Spear SK, Stepinski DC, Rogers RD. Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents. Dalton Trans. 2005 Jun 07;(11):1966-71. doi: 10.1039/b502016f. Epub 2005 May 03. PMID: 15909044.
Copy Download .nbib Format: NLM
Share it on

Dalton Trans. 2005 Jun 07;(11):1966-71. doi: 10.1039/b502016f. Epub 2005 May 03.

Identical extraction behavior and coordination of trivalent or hexavalent f-element cations using ionic liquid and molecular solvents.

Dalton transactions (Cambridge, England : 2003)

Violina A Cocalia, Mark P Jensen, John D Holbrey, Scott K Spear, Dominique C Stepinski, Robin D Rogers

Affiliations

  1. Department of Chemistry, University of Alabana, Tuscaloosa, AL 35487, USA.

PMID: 15909044 DOI: 10.1039/b502016f

Abstract

The extraction of both UO2(2+) and trivalent lanthanide and actinide ions (Am3+, Nd3+, Eu3+) by dialkylphosphoric or dialkylphosphinic acids from aqueous solutions into the ionic liquid, 1-decyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide has been studied and compared to extractions into dodecane. Radiotracer partitioning measurements show comparable patterns of distribution ratios for both the ionic liquid/aqueous and dodecane/aqueous systems, and the limiting slopes at low acidity indicate the partitioning of neutral complexes in both solvent systems. The metal ion coordination environment, elucidated from EXAFS and UV-visible spectroscopy measurements, is equivalent in the ionic liquid and dodecane solutions with coordination of the uranyl cation by two hydrogen-bonded extractant dimers, and of the trivalent cations by three extractant dimers. This is the first definitive report of a system where both the biphasic extraction equilibria and metal coordination environment are the same in an ionic liquid and a molecular organic solvent.

Publication Types