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Push–pull type quinoidal perylene showing solvent polarity dependent diradical character and negative solvatochromism

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Abstract

Synthesis and physical properties of a new push–pull type quinoidal perylene (DA-Per) are reported. Three resonance forms, a closed-shell quinoid, an open-shell diradicaloid and a closed-shell zwitterion, all contribute to the ground-state electronic structure. The molecule shows solvent polarity dependent diradical character and negative solvatochromism, which can be explained by the subtle balance among the three resonance forms in different solvent environments.

Graphical abstract: Push–pull type quinoidal perylene showing solvent polarity dependent diradical character and negative solvatochromism

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Publication details

The article was received on 05 Sep 2019, accepted on 17 Oct 2019 and first published on 18 Oct 2019


Article type: Research Article
DOI: 10.1039/C9QM00566H
Mater. Chem. Front., 2019, Advance Article

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    Push–pull type quinoidal perylene showing solvent polarity dependent diradical character and negative solvatochromism

    W. Zeng and J. Wu, Mater. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QM00566H

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