Direct observation of copper-induced role on Ullmann reaction by scanning tunneling microscopy

被引：3

作者：

Leng, Xinli ^{[1
,2
]}

Li, Wei ^{[3
]}

Liu, Xiaoqing ^{[2
]}

Wang, Li ^{[2
]}

机构：

[1] Nanchang Normal Univ, Dept Phys, Nanchang 330032, Jiangxi, Peoples R China

[2] Nanchang Univ, Dept Phys, Nanchang 330031, Jiangxi, Peoples R China

[3] Nanchang Inst Technol, Dept Sci, Nanchang 330099, Jiangxi, Peoples R China

来源：

CHEMICAL PHYSICS | 2019年 / 522卷

关键词：

Carbon-carbon coupling; Ullmann coupling; Guest metal atoms; Organometallic intermediate; Oligomer; ON-SURFACE SYNTHESIS; BOTTOM-UP FABRICATION; GRAPHENE NANORIBBONS; MOLECULAR WIRES; BAND-GAP; POLYMERIZATION; POLYPHENYLENE; MACROCYCLES; GROWTH; CHAINS;

D O I：

10.1016/j.chemphys.2019.02.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ullmann coupling of 4,4 ''-dibromo-p-terphenyl (DBTP) on Ag(1 1 0) surface has been investigated by introducing guest copper atoms in two ways. Scanning tunneling microscopy observations unambiguously demonstrate that the Ullmann reaction on Ag(1 1 0) surface can be improved by introducing copper atoms in both ways, and the effect is more remarkable when copper atoms are introduced on a annealing surface covered by molecules.

引用

页码：65 / 68

页数：4

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