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Type: Artigo de periódico
Title: Intrinsic Mobility Of Gaseous Cationic And Anionic Aggregates Of Ionic Liquids
Author: Lalli P.M.
Corilo Y.E.
De Sa G.F.
Daroda R.J.
De Souza V.
Souza G.H.M.F.
Campuzano I.
Ebeling G.
Dupont J.
Eberlin M.N.
Abstract: Travelling-wave ion mobility mass spectrometry was used to measure the intrinsic mobility of a series of gaseous supra-cation and supra-anion aggregates of several ionic liquids. Close mobilities were observed in a T-wave cell filled with helium at ca. 0.8 mbar for [(DAI)n+1(X) n]+ (DAI is the 1,3-dialkylimidazolium cation and X is the anion) as compared to the respective anions [(DAI)n(X) n+1]- for n=0 to 9. The anomalous behavior reported before in the condensed phase seems therefore to be related to the unique structural organization of pure ionic liquids that provides both polar and non-polar regions with directionality in which the anionic species are more retained than the cationic species in the salt network. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation: Chemphyschem. , v. 12, n. 8, p. 1444 - 1447, 2011.
Rights: fechado
Identifier DOI: 10.1002/cphc.201100099
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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