Volume 62, Issue 8 e202218176
Communication

π-Extended Pyrrole-Fused Heteropine: Synthesis, Properties, and Application in Organic Field-Effect Transistors

Dr. Weifan Wang

Dr. Weifan Wang

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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Fiona Hanindita

Fiona Hanindita

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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Yusei Tanaka

Yusei Tanaka

Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Kotaro Ochiai

Kotaro Ochiai

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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Dr. Hiroyasu Sato

Dr. Hiroyasu Sato

Rigaku Corporation, 3-9-12 Matsubara-Cho, Akishima, Tokyo, 196-8666 Japan

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Dr. Yongxin Li

Dr. Yongxin Li

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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Prof. Dr. Takuma Yasuda

Corresponding Author

Prof. Dr. Takuma Yasuda

Institute for Advanced Study, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395 Japan

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Prof. Dr. Shingo Ito

Corresponding Author

Prof. Dr. Shingo Ito

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371 Singapore

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First published: 27 December 2022
Citations: 6

Graphical Abstract

Here we report an efficient method for the synthesis of π-extended pyrrole-fused heteropine compounds and investigated their optical and electronic properties. A π-extended pyrrole-fused thiepine exhibited a “pitched π-stacking” structure in the crystal, and exhibited a high charge carrier mobility of up to 1.0 cm2 V−1 s−1 in single-crystal field-effect transistors.

Abstract

Sulfur-embedded polycyclic aromatic compounds have been used as building blocks for numerous organic semiconductors over the past few decades. While the success is based on thiophene-containing compounds, aromatic compounds that contain thiepine, a sulfur-containing seven-membered-ring arene, has been less well investigated. Here we report the synthesis and properties of π-extended pyrrole-fused heteropine compounds such as thiepine and oxepine. A π-extended pyrrole-fused thiepine exhibited a “pitched π-stacking” structure in the crystal, and exhibited a high charge carrier mobility of up to 1.0 cm2 V−1 s−1 in single-crystal field-effect transistors.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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