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Download fileElectrical Conductivities, Viscosities, and Densities of N-Methoxymethyl- and N-Butyl-N-methylpyrrolidinium Ionic Liquids with the Bis(fluorosulfonyl)amide Anion
journal contribution
posted on 2012-03-08, 00:00 authored by Takashi Makino, Mitsuhiro Kanakubo, Tatsuya Umecky, Akira Suzuki, Tetsuo Nishida, Jun TakanoThis paper reports the densities, viscosities, and electrical
conductivities
of the two pyrrolidinium ionic liquids, N-methoxymethyl-N-methylpyrrolidinium bis(fluorosulfonyl)amide ([Pyr1,1O1][FSA]) and N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl)amide ([Pyr1,4][FSA]), over the temperature range T = (273.15
to 363.15) K at atmospheric pressure. The densities were fitted to
polynominals, and the viscosities and electrical conductivities were
analyzed with the Vogel–Fulcher–Tammann and Litovitz
equations. The densities and electrical conductivities of [Pyr1,1O1][FSA] are higher than those of [Pyr1,4][FSA],
while the viscosities of the former salt are smaller than those of
the latter. The Walden plots (double logarithm graph of molar conductivity
vs fluidity (reciprocal viscosity)) give the straight lines with the
slopes being 0.91 to 0.94. The present results for [Pyr1,1O1][FSA] and [Pyr1,4][FSA] are compared with those for the
bis(trifluoromethanesulfonyl)amide ([NTf2]−) analogues, [Pyr1,1O1][NTf2] and [Pyr1,4][NTf2].