Issue 6, 2023
From the journal:

Chemical Communications

Solvent-tunable exciton-charge transfer mixed state enhances emission of functionalized benzo[rst]pentaphene through symmetry breaking†

Xiushang Xu,‡a   Amy L. Vonder Haar, ORCID logo ‡b   Rengo Yoshioka,a   Qizheng Zhang, ORCID logo a   Serhii Vasylevskyi, ORCID logo c   Andrew J. Musser ORCID logo *b  and  Akimitsu Narita ORCID logo *a  

* Corresponding authors

a Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
E-mail: akimitsu.narita@oist.jp

b Department of Chemistry & Chemical Biology, Cornell University, Ithaca, NY 14850, USA
E-mail: ajm557@cornell.edu

c Engineering Section, Research Support Division, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan

Abstract

A benzo[rst]pentaphene (BPP) substituted by two bis(methoxyphenyl)amino (MeOPA) groups (BPP–MeOPA) was synthesized and clearly characterized by NMR and single-crystal X-ray analysis. Detailed investigations of its photophysical properties, including transient absorption spectroscopy analyses, revealed that the introduction of the MeOPA groups breaks the symmetry of the BPP core, improving its absorption and emission from an S1 state with both excitonic and charge-transfer character.

Graphical abstract: Solvent-tunable exciton-charge transfer mixed state enhances emission of functionalized benzo[rst]pentaphene through symmetry breaking

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Article information

DOI
https://doi.org/10.1039/D2CC05369A
Article type
Communication
Submitted
30 Sep 2022
Accepted
12 Dec 2022
First published
12 Dec 2022

Chem. Commun., 2023,59, 720-723

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Solvent-tunable exciton-charge transfer mixed state enhances emission of functionalized benzo[rst]pentaphene through symmetry breaking

X. Xu, A. L. Vonder Haar, R. Yoshioka, Q. Zhang, S. Vasylevskyi, A. J. Musser and A. Narita, Chem. Commun., 2023, 59, 720 DOI: 10.1039/D2CC05369A

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