Generation of Superoxide Ion in Trihexyl (Tetradecyl) Phosphonium bis (Trifluoromethylsulfonyl) imide Room Temperature Ionic Liquid

M. Hayyan*, Farouq S. Mjalli, M. A. Hashim, Inas M. AlNashef, X. M. Tan, K. L. Chooi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Superoxide ion has been generated in room temperature ionic liquid trihexyl (tetradecyl) phosphonium bis (trifluoromethylsulfonyl)imide, [P14,666][N(Tf)2]. Cyclic voltammetry and chronoamperometry techniques were used for the electrochemical generation of Om2._, while chemical generation was done by adding KO2 to dimethylsulphoxide (DMSO). The long term stability of O2._ was investigated using UV/Vis spectrophotometer. It was found that the quaternary phosphonium cation, [PI 4,666]+ is a reasonably stable cation in the presence of 02._ which indicates the possible use of these ILs for further useful applications.

Original languageEnglish
Pages (from-to)1176-1180
Number of pages5
JournalJournal of Applied Sciences
Issue number12
Publication statusPublished - 2010


  • Ionic liquids
  • Phosphonium
  • Stability
  • Superoxide ion

ASJC Scopus subject areas

  • General

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