Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids

Biller H, Lerch S, Tölke K, Stammler H-G, Hoge B, Strassner T (2021)
Chemistry - A European Journal .

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Autor*in
Biller, Harry; Lerch, Swantje; Tölke, KatharinaUniBi; Stammler, Hans-GeorgUniBi; Hoge, BertholdUniBi; Strassner, Thomas
Abstract / Bemerkung
We synthesized new imidazolium-based tunable aryl alkyl ionic liquids (TAAILs) with the weakly coordinating tetrakis(pentafluoroethyl)gallate anion, [Ga(C2 F5 )4 ]- . Phenyl and phenyl derivatives (2-Me, 4-OMe, 2,4-F) were combined with varying alkyl chain lengths at the imidazolium core leading to TAAILs, which were investigated with regard to their viscosity, conductivity, and electrochemical window and compared to EMIM and BMIM standard cations. Remarkable low viscosities of 29 cP at 25°C for [BMIM][Ga(C2 F5 )4 ] were achieved. However, the EMIM and BMIM gallates show electrochemical instability, releasing pentafluoroethane at a voltage of 1.5 V. The 2-Me-substituted gallate-TAAILs slowly decompose over several weeks, whereas all other gallate-TAAILs showed no decomposition at all. With electrochemical windows of up to 5.15 V and low viscosities in a range of 66-162 cP, the gallate-TAAILs are promising candidates as electrolytes in electrochemical applications. © 2021 The Authors. Published by Wiley-VCH GmbH.
Erscheinungsjahr
2021
Zeitschriftentitel
Chemistry - A European Journal
eISSN
1521-3765
Page URI
https://pub.uni-bielefeld.de/record/2956911

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Biller H, Lerch S, Tölke K, Stammler H-G, Hoge B, Strassner T. Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids. Chemistry - A European Journal . 2021.
Biller, H., Lerch, S., Tölke, K., Stammler, H. - G., Hoge, B., & Strassner, T. (2021). Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids. Chemistry - A European Journal . https://doi.org/10.1002/chem.202102097
Biller, Harry, Lerch, Swantje, Tölke, Katharina, Stammler, Hans-Georg, Hoge, Berthold, and Strassner, Thomas. 2021. “Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids”. Chemistry - A European Journal .
Biller, H., Lerch, S., Tölke, K., Stammler, H. - G., Hoge, B., and Strassner, T. (2021). Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids. Chemistry - A European Journal .
Biller, H., et al., 2021. Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids. Chemistry - A European Journal .
H. Biller, et al., “Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids”, Chemistry - A European Journal , 2021.
Biller, H., Lerch, S., Tölke, K., Stammler, H.-G., Hoge, B., Strassner, T.: Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids. Chemistry - A European Journal . (2021).
Biller, Harry, Lerch, Swantje, Tölke, Katharina, Stammler, Hans-Georg, Hoge, Berthold, and Strassner, Thomas. “Tetrakis(pentafluoroethyl)gallate, [Ga(C2 F5 )4 ]- , Ionic Liquids”. Chemistry - A European Journal (2021).

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