Ammonium·18-crown-6 bis(trifluoromethylsulfonyl)amide. (8th September 2020)

• Record Type: Journal Article
• Authors: Kawata, Kio; Kitada, Atsushi; Fukami, Kazuhiro; Murase, Kuniaki
• Is Part Of: ECS transactions. Volume 98:Number 10(2020)
• Page Start: 471
• Page End: 475
• Publication Date: 2020-09-08
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/09810.0471ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : We report synthesis and characterization of an ammonium-based molten salt, ammonium bis(trifluoromethylsulfonyl)amide-18-crown-6 (1/1), i.e. [NH4 + ·18C6][Tf2 N – ] (Tf = SO2 CF3 ). Raman spectra shows [NH4 + ·18C6][Tf2 N – ] consists of NH4 + ion encapsulated by 18C6 and Tf2 N – anion. The melting point of [NH4 + ·18C6][Tf2 N – ] was around 100°C. At 140°C, the viscosity of [NH4 + ·18C6][Tf2 N – ] was 14.7 mPa s, the conductivity was 8.0 mS cm –1, and the density was 1.23 g cm –3 . These properties were comparable to those of common ionic liquids.