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Radical cations of twisted acenes: chiroptical properties and spin delocalization

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Abstract

We introduce the first series of enantiopure twistacene radical cations, which form reversibly upon chemical or electrochemical oxidation. Their vis-NIR chiroptical properties (Cotton effect and anisotropy factor) increase systematically with the backbone twist. The hyperfine constants observed by EPR demonstrate significant spin delocalization even for large backbone twist angles.

Graphical abstract: Radical cations of twisted acenes: chiroptical properties and spin delocalization

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Publication details

The article was received on 09 Apr 2019, accepted on 25 Apr 2019 and first published on 25 Apr 2019


Article type: Communication
DOI: 10.1039/C9CC02735A
Chem. Commun., 2019, Advance Article

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    Radical cations of twisted acenes: chiroptical properties and spin delocalization

    A. Bedi, R. Carmieli and O. Gidron, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC02735A

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