LCST-phase behavior and complexation with water of an ionic liquid incorporating the 5-phenyltetrazolate anion

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Abstract

The use of 5-phenyltetrazole, a bioisostere of benzoic acid, as an anion source to prepare an ionic liquid is described for the first time. Tetrabutylphosphonium 5-phenyltetrazolate undergoes phase separation from water with lower critical solution temperature phase behavior, in contrast to completely water miscible
tetrabutylphosphonium benzoate, and also exhibits strong complexation with water with both eutectic and peritectic behavior that has not previously been observed in ionic liquid + water systems. The anhydrous and trihydrate salts were isolated and characterized by single crystal X-ray diffraction.
Original languageEnglish
Pages (from-to)3384-3389
Number of pages6
JournalChemPhysChem
Volume18
Issue number23
Early online date29 Aug 2017
DOIs
Publication statusPublished - 06 Dec 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Physical and Theoretical Chemistry

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