| Autor: |
Fu, Yubin, Chang, Xiao, Yang, Huan, Dmitrieva, Evgenia, Gao, Yixuan, Ma, Ji, Huang, Li, Liu, Junzhi, Lu, Hongliang, Cheng, Zhihai, Du, Shixuan, Gao, Hong-Jun, Feng, Xinliang |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Druh dokumentu: |
Článek |
| ISSN: |
1433-7851 |
| DOI: |
10.1002/anie.202109808 |
| Popis: |
Combining solution-based and surface-assisted synthesis, we demonstrate the first synthesis of NBN-doped bis-tetracene (NBN-BT) and peri-tetracene (NBN-PT). The chemical structures are clearly elucidated by high-resolution scanning tunneling microscopy (STM) in combination with noncontact atomic force microscopy (nc-AFM). Scanning tunneling spectroscopy (STS) characterizations reveal that NBN-BT and NBN-PT possess higher energy gaps than bis-tetracene and peri-tetracene. Interestingly, NBN-BT can undergo stepwise one-electron oxidation and convert into its corresponding radical cation and then to its dication. The energy gap of the NBN-BT dication is similar to that of bis-tetracene, indicating their isoelectronic relationship. Moreover, a similar energy gap between the NBN-PT dication and peri-tetracene can be predicted by DFT calculations. This work provides a novel synthesis along with characterizations of multi-NBN-doped zigzag-edged peri-acenes with tunable electronic properties. |
| Databáze: |
Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
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