Journal of the American Chemical Society p. 3576 - 3582 (2013)
Update date:2022-08-16
Topics:
Lin, Tao
Shang, Xue Song
Adisoejoso, Jinne
Liu, Pei Nian
Lin, Nian
On-surface polymerization represents a novel bottom-up approach for producing macromolecular structures. To date, however, most of the structures formed using this method exhibit a broad size distribution and are disorderly adsorbed on the surface. Here we demonstrate a strategy of using metal-directed template to control the on-surface polymerization process. We chose a bifunctional compound which contains pyridyl and bromine end groups as the precursor. Linear template afforded by pyridyl-Cu-pyridyl coordination effectively promoted Ullmann coupling of the monomers on a Au(111) surface. Taking advantage of efficient topochemical enhancement owing to the conformation flexibility of the Cu-pyridyl bonds, macromolecular porphyrin structures that exhibit a narrow size distribution were synthesized. We used scanning tunneling microscopy and kinetic Monte Carlo simulation to gain insights into the metal-directed polymerization at the single molecule level. The results reveal that the polymerization process profited from the rich chemistry of Cu which catalyzed the C-C bond formation, controlled the size of the macromolecular products, and organized the macromolecules in a highly ordered manner on the surface.
View MoreRongCheng Tianyu Technology Co.,Ltd.
Contact:86-631-7519595
Address:220Ping Donghai Road RongChengCity,ShangDong Province China
Chengdu Cogon Bio-tech Co., Ltd.
Contact:86-28-85171192
Address:NO.52.YongFeng Rd. Chengdu,610041,P.R.China.
Contact:021
Address:Pudong
Jiaxing Taixin Pharmaceutical Chemical Co., Ltd
Contact:0573-82613601
Address:Chemical Park, Jiaxing, Zhejiang, China
Shuanghe Bio-Technology Limited
Contact:+86-571-61710758,18968016640
Address:Jinqiao north road 916# Fuyang
Doi:10.1134/S1070363218100298
()Doi:10.1002/ardp.19953280506
(1995)Doi:10.1021/j100492a016
(1978)Doi:10.1002/chem.201801344
(2018)Doi:10.1016/0009-2614(96)00202-3
(1996)Doi:10.1021/ja211749b
(2012)