Ionic liquids: First direct determination of their cohesive energy

Luís M. N. B. F. Santos, José N. Canongia Lopes, João A. P. Coutinho, José M. S. S. Esperança, Lígia R. Gomes, Isabel M. Marrucho, Luís P. N. Rebelo

Research output: Contribution to journalArticlepeer-review

273 Citations (Scopus)


Molar enthalpies of vaporization, ΔlgHmoof a homologous series of 1-alkyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imides, [Cnmim][NTf2], (with 2 ≤ n ≤ 8) were directly determined for the first time. The results obtained in this study emphasize and constitute clear experimental support for the novel concept that these liquid salts are composed of polar and nonpolar domains; that is, they exhibit microphase segregation.

Original languageEnglish
Pages (from-to)284-285
Number of pages2
JournalJournal of the American Chemical Society
Issue number2
Publication statusPublished - 17 Jan 2007


  • Ionic liquids
  • Binary mixtures
  • Pure ionic


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