Initiating Ullmann-like coupling of Br2Py by a semimetal surface

Abstract Intensive efforts have been devoted to surface Ullmann-like coupling in recent years, due to its appealing success towards on-surface synthesis of tailor-made nanostructures. While attentions were mostly drawn on metallic substrates, however, Ullmann dehalogenation and coupling reaction on...

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Autores principales:	Jinping Hu, Jinbang Hu, Hongbing Wang, Kongchao Shen, Huan Zhang, Chaoqin Huang, Lei Xie, Qiwei Tian, Han Huang, Zheng Jiang, Fei Song
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b7484866a37e4a3b8b28ab114ceb0f08
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spelling	oai:doaj.org-article:b7484866a37e4a3b8b28ab114ceb0f082021-12-02T12:09:18ZInitiating Ullmann-like coupling of Br2Py by a semimetal surface10.1038/s41598-021-82973-z2045-2322https://doaj.org/article/b7484866a37e4a3b8b28ab114ceb0f082021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82973-zhttps://doaj.org/toc/2045-2322Abstract Intensive efforts have been devoted to surface Ullmann-like coupling in recent years, due to its appealing success towards on-surface synthesis of tailor-made nanostructures. While attentions were mostly drawn on metallic substrates, however, Ullmann dehalogenation and coupling reaction on semimetal surfaces has been seldom addressed. Herein, we demonstrate the self-assembly of 2, 7-dibromopyrene (Br2Py) and the well controllable dehalogenation reaction of Br2Py on the Bi(111)–Ag substrate with a combination of scanning tunnelling microscopy (STM) and density functional theory calculations (DFT). By elaborately investigating the reaction path and formed organic nanostructures, it is revealed that the pristinely inert bismuth layer supported on the silver substrate can initiate Ullmann-like coupling in a desired manner by getting alloyed with Ag atoms underneath, while side products have not been discovered. By clarifying the pristine nature of Bi–Ag(111) and Ullmann-like reaction mechanisms, our report proposes an ideal template for thoroughly exploring dehalogenative coupling reaction mechanisms with atomic insights and on-surface synthesis of carbon-based architectures.Jinping HuJinbang HuHongbing WangKongchao ShenHuan ZhangChaoqin HuangLei XieQiwei TianHan HuangZheng JiangFei SongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jinping Hu Jinbang Hu Hongbing Wang Kongchao Shen Huan Zhang Chaoqin Huang Lei Xie Qiwei Tian Han Huang Zheng Jiang Fei Song Initiating Ullmann-like coupling of Br2Py by a semimetal surface
description	Abstract Intensive efforts have been devoted to surface Ullmann-like coupling in recent years, due to its appealing success towards on-surface synthesis of tailor-made nanostructures. While attentions were mostly drawn on metallic substrates, however, Ullmann dehalogenation and coupling reaction on semimetal surfaces has been seldom addressed. Herein, we demonstrate the self-assembly of 2, 7-dibromopyrene (Br2Py) and the well controllable dehalogenation reaction of Br2Py on the Bi(111)–Ag substrate with a combination of scanning tunnelling microscopy (STM) and density functional theory calculations (DFT). By elaborately investigating the reaction path and formed organic nanostructures, it is revealed that the pristinely inert bismuth layer supported on the silver substrate can initiate Ullmann-like coupling in a desired manner by getting alloyed with Ag atoms underneath, while side products have not been discovered. By clarifying the pristine nature of Bi–Ag(111) and Ullmann-like reaction mechanisms, our report proposes an ideal template for thoroughly exploring dehalogenative coupling reaction mechanisms with atomic insights and on-surface synthesis of carbon-based architectures.
format	article
author	Jinping Hu Jinbang Hu Hongbing Wang Kongchao Shen Huan Zhang Chaoqin Huang Lei Xie Qiwei Tian Han Huang Zheng Jiang Fei Song
author_facet	Jinping Hu Jinbang Hu Hongbing Wang Kongchao Shen Huan Zhang Chaoqin Huang Lei Xie Qiwei Tian Han Huang Zheng Jiang Fei Song
author_sort	Jinping Hu
title	Initiating Ullmann-like coupling of Br2Py by a semimetal surface
title_short	Initiating Ullmann-like coupling of Br2Py by a semimetal surface
title_full	Initiating Ullmann-like coupling of Br2Py by a semimetal surface
title_fullStr	Initiating Ullmann-like coupling of Br2Py by a semimetal surface
title_full_unstemmed	Initiating Ullmann-like coupling of Br2Py by a semimetal surface
title_sort	initiating ullmann-like coupling of br2py by a semimetal surface
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b7484866a37e4a3b8b28ab114ceb0f08
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Initiating Ullmann-like coupling of Br2Py by a semimetal surface

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