Crystal Structure and Solid-state Ionic Conductivity of Cyclic Sulfonylamide Salts with Cyano-substituted Quaternary ammonium Cations

Abstract

Novel organic ionic plastic crystals containing cyclic perfluorosulfonylamide anions were synthesized by anion metathesis between cyano-functionalized quaternary ammonium halide and Li{N(SO₂CF₂)₂CF₂} (LiCPFSA). The structure of [N(CH₃)₂(CH₂CN)₂][CPFSA] was disclosed by single crystal X-ray diffraction study. This study is the first report of the crystal structure of cyclic perfluorosulfonylamide anion.