Volume 132, Issue 35 pp. 15001-15005
Forschungsartikel

Unveiling 79-Year-Old Ixene and Its BN-Doped Derivative

Dr. Palas Baran Pati

Dr. Palas Baran Pati

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Eunji Jin

Eunji Jin

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Yohan Kim

Yohan Kim

Department of Materials Science and Engineering, Low Dimensional Carbon Materials Center, Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Yongchul Kim

Yongchul Kim

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Jinhong Mun

Jinhong Mun

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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So Jung Kim

So Jung Kim

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Prof. Seok Ju Kang

Prof. Seok Ju Kang

Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

Center for Wave Energy Materials, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Prof. Wonyoung Choe

Prof. Wonyoung Choe

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Prof. Geunsik Lee

Corresponding Author

Prof. Geunsik Lee

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

Center for Wave Energy Materials, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Prof. Hyung-Joon Shin

Corresponding Author

Prof. Hyung-Joon Shin

Department of Materials Science and Engineering, Low Dimensional Carbon Materials Center, Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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Prof. Young S. Park

Corresponding Author

Prof. Young S. Park

Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

Center for Wave Energy Materials, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919 Republic of Korea

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First published: 14 May 2020
Citations: 7

Abstract

Polycyclic aromatic hydrocarbons (PAHs) are key components of organic electronics. The electronic properties of these carbon-rich materials can be controlled through doping with heteroatoms such as B and N, however, few convenient syntheses of BN-doped PAHs have been reported. Described herein is the rationally designed, two-step syntheses of previously unknown ixene and BN-doped ixene (B2N2-ixene), and their characterizations. Compared to ixene, B2N2-ixene absorbs longer-wavelength light and has a smaller electrochemical energy gap. In addition to its single-crystal structure, scanning tunneling microscopy revealed that B2N2-ixene adopts a nonplanar geometry on a Au(111) surface. The experimentally obtained electronic structure of B2N2-ixene and the effect of BN-doping were confirmed by DFT calculations. This synthesis enables the efficient and convenient construction of BN-doped systems with extended π-conjugation that can be used in versatile organic electronics applications.

Conflict of interest

The authors declare no conflict of interest.

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