Premium
Probing a Gas/Liquid Acid–Base Reaction by X‐ray Photoelectron Spectroscopy
Author(s) -
Niedermaier Inga,
Taccardi Nicola,
Wasserscheid Peter,
Maier Florian,
Steinrück HansPeter
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201304115
Subject(s) - triflic acid , x ray photoelectron spectroscopy , ionic liquid , chemistry , base (topology) , spectroscopy , ion , computer science , database , catalysis , analytical chemistry (journal) , chemical engineering , organic chemistry , physics , engineering , quantum mechanics , mathematical analysis , mathematics
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 [C 8 C 1 Im]Cl forming volatile HCl and the IL [C 8 C 1 Im][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).