Abstract
Examples of a new class of onium salts bearing the tetrafluoroborate anion were prepared by neutralization of the corresponding amines. This method greatly simplifies the preparation of many organic molten salts. Some of the resulting neutralized amines displayed an ionic conductivity greater than at room temperature. The largest ionic conductivity was observed in 2‐methyl‐1‐pyrroline neutralized by . In addition, the ionic conductivity above the melting point is well described by the Vogel‐Tamman‐Fulcher formula. There is a correlation between the ionic conductivity of neutralized amines and of the corresponding alkylated onium salts having the same heteroaromatic rings. These neutralized amines are convenient models of onium salts having high ionic conductivity. © 2000 The Electrochemical Society. All rights reserved.
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