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Type: Artigo de periódico
Title: Intrinsic Mobility Of Gaseous Cationic And Anionic Aggregates Of Ionic Liquids.
Author: Lalli, Priscila M
Corilo, Yuri E
de Sa, Gilberto F
Daroda, Romeu J
de Souza, Vanderlea
Souza, Gustavo H M F
Campuzano, Iain
Ebeling, Günter
Dupont, Jairton
Eberlin, Marcos 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.
Rights: fechado
Identifier DOI: 10.1002/cphc.201100099
Date Issue: 2011
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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