Chemistry Letters, Vol.33, No.6, 680-681, 2004
Low-viscous, low-melting, hydrophobic ionic liquids: 1-alkyl-3-methylimidazolium trifluoromethyltrifluoroborate
New hydrophobic ionic liquids, 1-alkyl-3-methylimidazolium (alkyl = methyl, ethyl, n-propyl, n-butyl, n-hexyl) trifluoromethyltrifluoroborate ([CF3BF3](-)), have been synthesized by a metathesis reaction between 1-alkyl-3-methylimidazolium halide and K[CF3BF3]. All these new ionic liquids exhibit low viscosities (26-77 cP at 25 degreesC) and low melting points, resulting in high conductivities correspondingly.