New Water‐Stable Ionic Liquids Based on Tetrakis‐(2,2,2‐trifluoroethoxy)borate |
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| Authors: | Alexander B. A. Rupp Petra Klose Dr. Harald Scherer Prof. Dr. Ingo Krossing |
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| Affiliation: | 1. Institut für Anorganische und Analytische Chemie, Albert‐Ludwigs‐Universit?t, Albertstra?e 21, 79104 Freiburg (Germany);2. Freiburger Materialforschungszentrum, Stefan‐Meier‐Stra?e 21, 79104 Freiburg (Germany) |
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| Abstract: | Several new ionic liquids (ILs) were prepared from Na[B(tfe)4] (tfe=OCH2CF3) via metathesis, including one room temperature IL (RTIL). Prior to synthesis, suitable cations were chosen via predictive quantum‐chemical calculations. Nuclear magnetic resonance monitoring over almost a month showed a total stability of the anion in the presence of water. The temperature‐dependent viscosities and melting points of all the new ILs were determined. The data indicate that [B(tfe)4]? ILs may be too viscous for electrochemical applications, but are interesting candidates for lubricant research. |
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| Keywords: | density functional calculations ion pairs ionic liquids NMR spectroscopy synthesis |
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