期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 140, 期 19, 页码 6076-6082出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b12278
关键词
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资金
- National Science Foundation of China [21661132006, 21790053, 21622306, 91545127, 21473178, 21773222]
- National Major State Basic Research Development Program of China [2017YFA0205002, 2014CB932600]
- Natural Science Foundation of Jiangsu Province [BK20140305, BK20130285]
Hierarchical control of chemical reactions is being considered as one of the most ambitious and challenging topics in modern organic chemistry. In this study, we have realized the one-by-one scission of the X-H bonds (X = N and C) of aromatic amines in a controlled fashion on the Cu(lll) surface. Each dehydrogenation reaction leads to certain metal-organic supramolecular structures, which were monitored in single-bond resolution via scanning tunneling microscopy and noncontact atomic force microscopy. Moreover, the reaction pathways were elucidated from X-ray photoelectron spectroscopy measurements and density functional theory calculations. Our insights pave the way for connecting molecules into complex structures in a more reliable and predictable manner, utilizing carefully tuned stepwise on-surface synthesis protocols.
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