期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 28, 页码 8910-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja7106542
关键词
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Self-assembly of the specifically designed 3-fold symmetric 1,3,5-trikis(4'-carboxyphenyl)-2,4,6-trikis (4'-tert-butylphenyl)-benzene molecule on Au(111) surface is investigated by means of in situ ulatrahigh vacuum scanning tunneling microscopy. A variety of chiral honeycomb networks with increasing interpore distance is observed. Experiments and force field calculatiosn reveal that the formation of the two-dimensional hexagonal porous networks is driven by a balance of molecular close-packing within half-unit cells and cyclic hydrogen bondicng dimerization betweeen half-unit cells. The honeycomb networks are shown to be chiral owing to asymmetric molecular close-packing within the half-unit cells.
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