SEARCH

SEARCH BY CITATION

Keywords:

  • acid–base reactions;
  • ionic liquids;
  • reaction mechanisms;
  • X-ray photoelectron spectroscopy
Thumbnail image of graphical abstract

A mechanistic study: In a Brønsted acid/base reaction, gaseous triflic acid (OTfH) transfers its proton to the basic Cl anion of the ionic liquid [C8C1Im]Cl forming volatile HCl and the IL [C8C1Im][TfO]. This anion exchange reaction is monitored in the near-surface region quantitatively by X-ray photoelectron spectroscopy as a function of time (see picture; BE=binding energy).