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

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