文献类型：期刊文献

英文题名：On-Surface Formation of One-Dimensional Polyphenylene through Bergman Cyclization

作者：Sun, Qiang[1];Zhang, Chi[1];Li, Zhiwen[2];Kong, Huihui[1];Tan, Qinggang[1];Hu, Aiguo[2];Xu, Wei[1]

机构：[1]Tongji Univ, Key Lab Adv Civil Engn Mat, Coll Mat Sci & Engn, Minist Educ, Shanghai 201804, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：135

期号：23

起止页码：8448

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20132516432727);WOS:【SCI-EXPANDED(收录号:WOS:000320483900005)】；

基金：The authors acknowledge financial support from the National Natural Science Foundation of China (21103128), the Program for New Century Excellent Talents in University (NCET-09-0607), the Shanghai Pujiang Program (11PJ1409700), the Shanghai "Shu Guang" Project supported by the Shanghai Municipal Education Commission and Shanghai Education Development Foundation (11SG25), the Fundamental Research Funds for the Central Universities, and the Research Fund for the Doctoral Program of Higher Education of China (20120072110045). The authors acknowledge financial support from the National Natural Science Foundation of China (91023008) and Shanghai Leading Academic Discipline Project (B502). Lev Kantorovich is gratefully acknowledged for assistance with the STM simulation.

语种：英文

外文关键词：Density functional theory - Electron transport properties - Cyclization - Nanostructures

摘要：On-surface fabrication of covalently inter-linked conjugated nanostructures has attracted significant attention, mainly because of the high stability and efficient electron transport ability of these structures. Here, from the interplay of scanning tunneling microscopy imaging and density functional theory calculations, we report for the first time on surface formation of one-dimensional polyphenylene chains through Bergman cyclization followed by radical polymerization on Cu(110). The formed surface nanostructures were further corroborated by the results for the ex situ-synthesized molecular product after Bergman cyclization. These findings are of particular interest and importance for the construction of molecular electronic nanodevices on surfaces.