New family of highly conductive and low viscous ionic liquids with asymmetric 2, 2, 2-trifluoromethylsulfonyl-N-cyanoamide anion. (1st September 2015)

• Record Type: Journal Article
• Authors: Shaplov, Alexander S.; Lozinskaya, Elena I.; Vlasov, Petr S.; Morozova, Sofia M.; Antonov, Dmitrii Y.; Aubert, Pierre-Henri; Armand, Michel; Vygodskii, Yakov S.
• Is Part Of: Electrochimica acta. Volume 175(2015)
• Page Start: 254
• Page End: 260
• Publication Date: 2015-09-01
• Subjects: Ionic liquids -- Low viscosity -- Ionic conductivity -- TFSAM -- Asymmetric anion; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.02.228
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Abstract: The synthetic pathway for the preparation of potassium salt with novel asymmetric 2, 2, 2-trifluoromethylsulfonyl-N-cyanoamide (TFSAM, CF3 SO2 -N-CN) anion in high yield and purity is reported. New family of ionic liquids, based on "classical" 1-methyl-3-alkylimidazolium, N-methyl-N-propylpyrrolidinium, quaternary ammonium or phosphonium non-cyclic cations with TFSAM as counter-anion, were synthesized and their physical properties were studied. All salts were found to be low melting compounds, most being liquid at r.t., with low (for ionic liquids) viscosities and high ionic conductivities at 25 °C (for example, η = 23 cP and σ = 1.1 × 10 −2 S/cm for 1-ethyl-3-methylimidazolium 2, 2, 2-trifluoromethylsulfonyl-N-cyanoamide). The electrochemical stability of TFSAM ILs was found to be in the range of 4.1–4.6 V.