Capture of Electrochemically Generated Fleeting Carbazole Radical Cations and Elucidation of Carbazole Dimerization Mechanism by Mass Spectrometry

Chengyuan Liu, Qi Wang, Brian E. Hivick, Yongling Ai, Pier Alexandre Champagne, Yang Pan, Hao Chen

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The capture of reactive intermediates is important for the elucidation of reaction mechanisms. We report the first observation of electrochemically generated, short-lived radical cations of carbazole (t1/2 ≈ 97 μs) and two N-substituted carbazole derivatives by mass spectrometry. In addition, online investigation of the reactivity of electrochemically generated carbazole radical cations supports that the carbazole dimerization mechanism involves the reaction of one radical cation with one neutral molecule rather than the previously proposed coupling of two radical cations.

Original languageEnglish (US)
Pages (from-to)15291-15296
Number of pages6
JournalAnalytical Chemistry
Volume92
Issue number23
DOIs
StatePublished - Dec 1 2020

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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