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
收藏
页码：65 / 68
页数：4
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