Thermal Properties of Alkali (Fluorosulfonyl)(trifluoromethylsulfonyl)amides

Abstract An asymmetric perfluorosulfonylamide anion, [(FSO2)(CF3SO2)N]− (C0C1−), has a significant ability to lower the melting temperatures of alkali salts down to around 373 K. Among alkali salts which have melting temperatures around 373 K, they have comparatively high decomposition temperature. The melting point of LiC0C1 is the lowest among the lithium salts of perfluoroalkyl- or fluorosulfonylamide anions of this kind.