XPS-evidence for in-situ electrochemically-generated carbene formation

Pinar Aydogan Gokturk, Ulrike Salzner, L. Nyulászi, Burak Ulgut, Coskun Kocabas, Sefik Suzer

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Stable N-heterocyclic carbenes (NHC) are a class of compounds that has attracted a huge amount of interest in the last decade. One way to prepare NHCs is through chemical or electrochemical reduction of 1,3-disubstituted imidazolium cations. We are presenting an in-situ electrochemical X-ray Photoelectron Spectroscopy (XPS) study where electrochemically reduced imidazolium cations lead to production of stable NHC. The electroactive imidazolium species is not only the reactant, but also part of the ionic liquid which serves as the electrolyte, the medium and the electroactive material. This allows us to directly probe the difference between the parent imidazolium ion and the NHC through the use of XPS. The interpretation of the results is supported by both observation of reversible redox peaks in the voltammogram and the density functional theory calculations.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalElectrochimica Acta
Volume234
DOIs
Publication statusPublished - Apr 20 2017

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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