On-surface photo-induced dechlorination

On-surface Ullmann-type reaction, or the dehalogenated coupling, is arguably the most pivotal reaction in on-surface synthesis for the fabrications of carbon nanostructures. Hitherto, the vast majority of works rely on activating the C-Br bond of aryl bromide which has a moderate bond dissociation e...

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Bibliographic Details
Published in:Chinese chemical letters 2024-09, Vol.35 (9), p.109807, Article 109807
Main Authors: He, Yu, Jiang, Hao, Yuan, Shaoxuan, Lu, Jiayi, Sun, Qiang
Format: Article
Language:English
Subjects:
Dechlorination reaction
On-surface photochemistry
On-surface synthesis
Scanning probe microscopy
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Summary:On-surface Ullmann-type reaction, or the dehalogenated coupling, is arguably the most pivotal reaction in on-surface synthesis for the fabrications of carbon nanostructures. Hitherto, the vast majority of works rely on activating the C-Br bond of aryl bromide which has a moderate bond dissociation energy. The C-Cl bond of aryl chloride has a higher dissociation energy and requires much higher thermal energy to break the bond. In this study, we have explored the on-surface photo-induced dechlorination and achieved the activation of three distinct aryl chlorines on the Au(111) surface with mild temperatures. This work enriches our understanding of on-surface photo-induced reactions and highlights the potential of photochemistry in realizing unconventional reactions. We have explored the on-surface photo-induced dechlorination and achieved the dechlorination of aryl chlorides on the metal surface at mild temperatures by photochemistry. [Display omitted]
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2024.109807