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Type: Artigo de periódico
Title: Vapors from Ionic Liquids: Reconciling Simulations with Mass Spectrometric Data
Author: Neto, BAD
Meurer, EC
Galaverna, R
Bythell, BJ
Dupont, J
Cooks, RG
Eberlin, MN
Abstract: The species involved in the distillation of aprotic ionic liquids are discussed in light of recent simulations and mass spectrometric data obtained by various techniques. New mass spectrometric data collected via laser-induced acoustic desorption and the thermal desorption of ionic liquids are also presented as well as additional DFT calculations. The available evidence of theoretical simulations and mass spectrometric data suggests that the distillation of ionic liquids occurs mainly via neutral ion pairs of composition C(n)A(n) [C+ = cation and A(-) = anion], followed by gas-phase dissociation to lower order ion pairs and then dissociation of hot CA to C+ and A(-), followed by ion/molecule association events to give [C(n)A(n-1)](+) or [C(n-1)A(n)](+) ions to a degree that depends on the amount of internal energy deposited into the neutral C(n)A(n) clusters upon evaporation.
Country: EUA
Editor: Amer Chemical Soc
Citation: Journal Of Physical Chemistry Letters. Amer Chemical Soc, v. 3, n. 23, n. 3435, n. 3441, 2012.
Rights: fechado
Identifier DOI: 10.1021/jz301608c
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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