Stability of divalent europium in an ionic liquid: spectroscopic investigations in 1-methyl-3-butylimidazolium hexafluorophosphate.
In this work, devoted to 1-methyl-3-butylimidazolium hexafluorophosphate ionic liquid (BumimPF(6)), the importance of the purity of the solvent for spectroscopic investigations is highlighted. Results from small angle X-ray scattering indicate that the pure solvent exhibits a local organization. Europium(II), which appears to be unusually stable in BumimPF(6), is characterized by spectroscopic techniques (absorption, luminescence). Solvation of Eu(II) in BumimPF(6) and complexation effects in the presence of the crown ether 15C5 solubilized in the ionic liquid are discussed.
Billard
Isabelle
I
Institut de Recherches Subatomiques, CNRS/IN2P3 and Université L. Pasteur, B. P. 28, 67037 Strasbourg Cedex 2, France. gilles.moutiers@cea.fr
Moutiers
Gilles
G
Labet
Alexandre
A
El Azzi
Antoine
A
Gaillard
Clotilde
C
Mariet
Clarisse
C
Lützenkirchen
Klaus
K