Volume 136, Issue 41 e202409750
Forschungsartikel

Perylene with Split-Azulene Embedding

Laiyun Zhou

Laiyun Zhou

School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021 China

These authors contributed equally to this work

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Fei Qiu

Fei Qiu

Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029 China

These authors contributed equally to this work

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Yeda Ding

Yeda Ding

School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021 China

These authors contributed equally to this work

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Jianwei Liang

Jianwei Liang

School of Materials Science and Engineering, Tongji University, Shanghai, 201804 China

These authors contributed equally to this work

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Bingdi Zhou

Bingdi Zhou

School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021 China

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Prof. Zheng Zhou

Corresponding Author

Prof. Zheng Zhou

School of Materials Science and Engineering, Tongji University, Shanghai, 201804 China

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Prof. Lei Zhang

Corresponding Author

Prof. Lei Zhang

Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029 China

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Prof. Chunyan Chi

Corresponding Author

Prof. Chunyan Chi

Department of Chemistry, National University of Singapore, Singapore, 3 Science Drive 3, 117543 Singapore

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Prof. Qing Wang

Corresponding Author

Prof. Qing Wang

School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021 China

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First published: 10 July 2024
Citations: 2

Abstract

Splitting the five and seven-membered rings of azulene and embedding them separately into a conjugated backbone provides azulene-like polycyclic aromatic hydrocarbons (PAHs), which are of great interest in quantum and material chemistry. However, the synthetic accessibility poses a significant challenge. In this study, we present the synthesis of a novel azulene-like PAH, Pery-57, which can be viewed as the integration of a perylene framework into the split azulene. The compact structure of Pery-57 displays several intriguing characteristics, including NIR II absorption at 1200 nm, a substantial dipole moment of 3.5 D, and head-to-tail alternating columnar packing. Furthermore, Pery-57 exhibits remarkable redox properties. The cationic radical Pery-57+ readily captures a hydrogen atom. Variable-temperature NMR (VT NMR ) and variable-temperature EPR (VT-EPR) studies reveal that the dianion Pery-572− possesses an open-shell singlet ground state and demonstrates significant global anti-aromaticity. The dication Pery-572+ is also predicted to exhibit diradical character. Despite bearing three bulky substituents, Pery-57 displays p-type transport characteristics with a mobility of 0.03 cm2 V−1 s−1, attributed to its unique azulene-like structure. Overall, this work directs interest in azulene-like PAHs, a unique member of nonalternant PAHs showcasing exceptional properties and applications.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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