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Alcohols as molecular probes in ionic liquids: evidence for nanostructuration

Vaz, Inês C. M.

Physical chemistry chemical physics. Volume 18:Issue 28 (2016); pp 19267-19275 -- Royal Society of Chemistry

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  • Title:
    Alcohols as molecular probes in ionic liquids: evidence for nanostructuration
  • Author: Vaz, Inês C. M.;
    Bhattacharjee, Arijit;
    Rocha, Marisa A. A.;
    Coutinho, João A. P.;
    Bastos, Margarida;
    Santos, Luís M. N. B. F.
  • Found In: Physical chemistry chemical physics. Volume 18:Issue 28 (2016); pp 19267-19275
  • Journal Title: Physical chemistry chemical physics
  • Subjects: Chemistry, Physical and theoretical--Periodicals; Dewey: 541.3
  • Rights: legaldeposit
  • Publication Details: Royal Society of Chemistry
  • Abstract: Abstract :

    A comprehensive study of the solution and solvation of linear alcohols (propan-1-ol, butan-1-ol and pentan-1-ol) in ionic liquids (ILs) is presented.

    Abstract :

    A comprehensive study of the solution and solvation of linear alcohols (propan-1-ol, butan-1-ol and pentan-1-ol) in ionic liquids (ILs) is presented. The effect of the alkyl chain size of both alcohols and ILs (1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C n C1im][NTf2], ionic liquid series) on the thermodynamic properties of solution and solvation was used to obtain insight into the interactions between alcohols and ILs. Alcohols were used as molecular probes to ascertain whether their solvation in ILs would reflect IL nanostructuration. A trend shift was found in the values of enthalpy of solution and solvation for the [C n C1im][NTf2] series at a critical alkyl size (CAS) of C6. Further, the effect of the hydrogen bond basicity of the anion in the solvation of alcohols was explored based on the comparative study of the solvation of propan-1-ol in two different IL series, 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C n C1im][NTf2] and hexafluorophosphate [C n C1im][PF6]. The results obtained provide experimental support for the strength of hydrogen bonds between the alcohols and the NTf2and PF6anions, providing insights into the IL intermolecular interactions, namely by indicating the ability of the alcohols to discriminate the IL anion hydrogen bond basicity.


  • Identifier: System Number: LDEAvdc_100034991647.0x000001; Journal ISSN: 1463-9076; 10.1039/c6cp03616c
  • Publication Date: 2016
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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