Double salt ionic liquids based on 1-ethyl-3-methylimidazolium acetate and hydroxyl-functionalized ammonium acetates: Strong effects of weak interactions

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dc.contributor.authorPereira, Jorge F. B. [UNESP]
dc.contributor.authorBarber, Patrick S.
dc.contributor.authorKelley, Steven P.
dc.contributor.authorBerton, Paula
dc.contributor.authorRogers, Robin D.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Alabama
dc.contributor.institutionMcGill University
dc.contributor.institution525 Solutions Inc.
dc.date.accessioned2018-12-11T16:50:02Z
dc.date.available2018-12-11T16:50:02Z
dc.date.issued2017-01-01
dc.description.abstractThe properties of double salt ionic liquids based on solutions of cholinium acetate ([Ch][OAc]), ethanolammonium acetate ([NH3(CH2)2OH][OAc]), hydroxylammonium acetate ([NH3OH][OAc]), ethylammonium acetate ([NH3CH2CH3][OAc]), and tetramethylammonium acetate ([N(CH3)4][OAc]) in 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) were investigated by NMR spectroscopy and X-ray crystallography. Through mixture preparation, the solubility of [N(CH3)4][OAc] is the lowest, and [Ch][OAc] shows a 3-fold lower solubility than the other hydroxylated ammonium acetate-based salts in [C2mim][OAc] at room temperature. NMR and X-ray crystallographic studies of the pure salts suggest that the molecular-level mechanisms governing such miscibility differences are related to the weaker interactions between the -NH3 groups and [OAc]-, even though three of these salts possess the same strong 1:1 hydrogen bonds between the cation -OH group and the [OAc]- ion. The formation of polyionic clusters between the anion and those cations with unsatisfied hydrogen bond donors seems to be a new tool by which the solubility of these salts in [C2mim][OAc] can be controlled.en
dc.description.affiliationUniversidade Estadual Paulista (UNESP) School of Pharmaceutical Sciences Câmpus (Araraquara) Department of Bioprocess and Biotechnology
dc.description.affiliationDepartment of Chemistry University of Alabama
dc.description.affiliationDepartment of Chemistry McGill University, 801 Sherbrooke St.
dc.description.affiliation525 Solutions Inc., 720 2nd Street
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) School of Pharmaceutical Sciences Câmpus (Araraquara) Department of Bioprocess and Biotechnology
dc.format.extent26934-26943
dc.identifierhttp://dx.doi.org/10.1039/c7cp05710e
dc.identifier.citationPhysical Chemistry Chemical Physics, v. 19, n. 39, p. 26934-26943, 2017.
dc.identifier.doi10.1039/c7cp05710e
dc.identifier.issn1463-9076
dc.identifier.scopus2-s2.0-85031316560
dc.identifier.urihttp://hdl.handle.net/11449/170270
dc.language.isoeng
dc.relation.ispartofPhysical Chemistry Chemical Physics
dc.relation.ispartofsjr1,686
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleDouble salt ionic liquids based on 1-ethyl-3-methylimidazolium acetate and hydroxyl-functionalized ammonium acetates: Strong effects of weak interactionsen
dc.typeArtigo

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