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Lewis Acidity/Basicity Changes in Imidazolium Based Ionic Liquids Brought About by Impurities

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dc.contributor.author Gacitúa, Marcela
dc.contributor.author Fuentealba, Patricio
dc.contributor.author Contreras, Renato
dc.contributor.author Ormazábal-Toledo, Rodrigo
dc.date.accessioned 2016-05-19T17:25:58Z
dc.date.available 2016-05-19T17:25:58Z
dc.date.issued 2015
dc.identifier.citation Journal of Physical Chemistry B, September 2015, vol.119, n°41, p.13160–13166
dc.identifier.uri http://hdl.handle.net/11447/287
dc.identifier.uri http://dx.doi.org/10.1021/acs.jpcb.5b05305
dc.description.abstract We herein report on the effect that water molecules, present as impurities, in the vicinity of an ionic liquid model structure, may induce on the Lewis acidity/basicity patterns normally observed in these materials. Depending on the position and orientation of water, the Lewis acidity/basicity pattern changes from “normal distribution” (i.e., the basicity located at the anion moiety and the acidity located at the cation fragment) to “bifunctional distribution” (i.e., the acidity and basicity located at the cation moiety). In some specific cases, there appears a third Lewis acidity/basicity distribution, where water may bind both the cation and the anion of the ion pair; a response we tentatively call “amphoteric”. These effects are clearly traced to the hydrogen bond formation ability of water to coordinate different regions of pure ionic liquids taken as references.
dc.language.iso en_US
dc.publisher American Chemical Society
dc.subject Ionic liquid model
dc.subject Lewis acidity/basicity patterns
dc.title Lewis Acidity/Basicity Changes in Imidazolium Based Ionic Liquids Brought About by Impurities
dc.type Artículo


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