Synthesis of pyrrolidinium-based plastic crystals exhibiting high ionic conductivity at ambient temperature

In this work, pyrrolidinium-based OIPCs were synthesised together with various anionic species to investigate the effect of the anion structure on the OIPC properties. In particular, the relationship between the ionic conductivity and ionic radius ratio (q) of the anion and cation was investigated. The results suggested that OIPCs with a smaller q value were found to exhibit a higher ionic conductivity.