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

Document Type

Article

Publication Date

12-1-2020

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.

Identifier

85096104651 (Scopus)

Publication Title

Analytical Chemistry

External Full Text Location

https://doi.org/10.1021/acs.analchem.0c01223

e-ISSN

15206882

ISSN

00032700

First Page

15291

Last Page

15296

Issue

23

Volume

92

Grant

1915878

Fund Ref

National Science Foundation

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