Electrochemistry of phenol in bis{(trifluoromethyl)sulfonyl}amide ([NTf2](-)) based ionic liquids

Constanza Villagran, Leigh Aldous, M.C. Lagunas, R.G. Compton, Christopher Hardacre, Cristina Lagunas-Castedo

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The electrochemistry of phenol and 4-tert-butyl-phenol is described in [C(2)mim][NTf2] and [C(4)mpyrr][NTf2] ionic liquids. Oxidation of phenol and phenolate is observed at E-p(a) = +1.64 and +0.24 V vs. Ag in both ionic liquids. On the cathodic sweep at a potential of -2.05 P 02 V vs. Ag under an oxygen atmosphere, the production of O-2(2-) dianions triggers the formation of phenolate anions which undergo chemical oxidation to the phenoxyl radical. The phenoxyl radical then reacts with the [NTf2](-) anion of the ionic liquid to form the corresponding phenyl triflate molecule. (c) 2005 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)27-31
Number of pages5
JournalJournal of Electroanalytical Chemistry
Volume588 (1)
Issue number1
DOIs
Publication statusPublished - 01 Mar 2006

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

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