Synthesis of Novel Ionic Liquids with Aromatic Trifluoroborate Anions

Aromatic trifluoroborate ([Ar-BF3]−) is a useful anion structure for molten salt and ionic liquid (IL) designing because we can attach various sorts of substituents on the aromatic ring with ease. A number of alkali metal salts having [Ar-BF3]− were synthesized and their physical properties were mea...

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Bibliographic Details
Main Authors: Iwasaki, Kazuki, Yoshii, Kazuki, Tsuzuki, Seiji, Tsuda, Tetsuya, Kuwabata, Susumu
Format: Conference Proceeding
Language:English
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Summary:Aromatic trifluoroborate ([Ar-BF3]−) is a useful anion structure for molten salt and ionic liquid (IL) designing because we can attach various sorts of substituents on the aromatic ring with ease. A number of alkali metal salts having [Ar-BF3]− were synthesized and their physical properties were measured. The salts showed lower melting point than simple inorganic salt, e.g., KCl and LiCl. When phenyltrifluoroborate ([PhBF3]−) and 1-ethyl-3-methylimidazolium ([C2mim]+) or 1-butyl-3-methylimidazolium ([C4mim]+) were combined, the resulting salts became a liquid state at room temperature. These ILs exhibited favorable viscosity and ionic conductivity comparable to a typical IL species, [C4mim][BF4].
ISSN:1938-5862
1938-6737
DOI:10.1149/06404.0083ecst