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Synthesis, Physicochemical Properties, and Toxicity Data of New Hydrophobic Ionic Liquids Containing Dimethylpyridinium and Trimethylpyridinium Cations

Abstract : Hydrophobic ionic liquids containing 1-butyl-2,3-dimethylpyridinium [B2M3MPYR], 1-butyl-3,5-dimethylpyridinium [B3M5MPYR], 1-butyl-2-methyl-5-ethylpyridinium [B2M5EPYR], 1-butyl-2,3,5-trimethylpyridinium [B2M3M5MPYR], 1-octyl-2,3-dimethylpyridinium [O2M3MPYR], 1-octyl-3,5-dimethylpyridinium [O3M5MPYR], 1-octyl-2-methyl-5-ethylpyridinium [O2M5EPYR], or 1-octyl-2,3,5-trimethylpyridinium [O2M3M5MPYR] as the cation and bis(trifluoromethanesulfonyl)imide [NTf2], trifluoromethanesulfonate [TfO], dicyanamide [N(CN)2], thiocyanate [SCN] or iodide as the anion have been synthesized, and their physicochemial properties have been studied. Thermal properties, solubilities in water and water contents, UV−vis spectra, densities, refractive indices, electrochemical windows, and toxicities on Vibrio fischeri have been measured. These ionic liquids, most of which are liquid at room temperature, exhibit high refractive indices and increased hydrophobicity. Despite high toxicity values toward V. fischeri, ionic liquids containing a dialkylpyridinium or trialkylpyridinium cation with an octyl chain represent good alternatives to extracting solvents.
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http://hal.univ-smb.fr/hal-00494112
Contributor : Papaiconomou Nicolas Connect in order to contact the contributor
Submitted on : Tuesday, June 22, 2010 - 10:23:21 AM
Last modification on : Tuesday, September 27, 2022 - 4:09:55 AM

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Papaiconomou Nicolas, J. Estager, Youssouf Traore, P. Bauduin, C. Bas, et al.. Synthesis, Physicochemical Properties, and Toxicity Data of New Hydrophobic Ionic Liquids Containing Dimethylpyridinium and Trimethylpyridinium Cations. Journal of Chemical and Engineering Data, American Chemical Society, 2010, 55 (5), pp.1971-1979. ⟨10.1021/je9009283⟩. ⟨hal-00494112⟩

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