Stability of Divalent Europium in an Ionic Liquid: Spectroscopic Investigations in 1-Methyl-3-butylimidazolium Hexafluorophosphate

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• 作者：Isabelle Billard ; Gilles Moutiers ; Alexandre Labet ; Antoine El Azzi ; Clotilde Gaillard ; Clarisse Mariet ; and Klaus Lü ; tzenkirchen
• 刊名：Inorganic Chemistry
• 出版年：2003
• 出版时间：March 10, 2003
• 年：2003
• 卷：42
• 期：5
• 页码：1726 - 1733
• 全文大小：124K
• 年卷期：v.42,no.5(March 10, 2003)
• ISSN：1520-510X

文摘

In this work, devoted to 1-methyl-3-butylimidazolium hexafluorophosphate ionic liquid (BumimPF₆), the importanceof the purity of the solvent for spectroscopic investigations is highlighted. Results from small angle X-ray scatteringindicate that the pure solvent exhibits a local organization. Europium(II), which appears to be unusually stable inBumimPF₆, is characterized by spectroscopic techniques (absorption, luminescence). Solvation of Eu(II) in BumimPF₆and complexation effects in the presence of the crown ether 15C5 solubilized in the ionic liquid are discussed.