Issue 8, 2022

Ethyl-, vinyl- and ethynylcyanoborates: room temperature borate ionic liquids with saturated and unsaturated hydrocarbon chains

Abstract

Ethyl-, vinyl- and ethynyltricyano and dicyanofluoroborates were prepared on a gram scale from commercially available potassium trifluoroborates and trimethylsilylcyanide. Salt metathesis resulted in the corresponding EMIm-salts that are hydrophobic room-temperature ionic liquids (RTILs). The new RTILs exhibit unprecedented large electrochemical windows in combination with high thermal stabilities, low dynamic viscosities and high specific conductivities. These properties make them promising materials, especially for electrochemical applications.

Graphical abstract: Ethyl-, vinyl- and ethynylcyanoborates: room temperature borate ionic liquids with saturated and unsaturated hydrocarbon chains

Supplementary files

Article information

Article type
Communication
Submitted
12 Nov. 2021
Accepted
17 Dec. 2021
First published
17 Dec. 2021

Chem. Commun., 2022,58, 1223-1226

Ethyl-, vinyl- and ethynylcyanoborates: room temperature borate ionic liquids with saturated and unsaturated hydrocarbon chains

N. Schopper, L. Zapf, J. A. P. Sprenger, N. V. Ignat’ev and M. Finze, Chem. Commun., 2022, 58, 1223 DOI: 10.1039/D1CC06393F

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