Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 39, Pages 13749-13753Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b05720
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Funding
- National Natural Science Foundation of China [21522301, 21373020, 21403008, 61621061, 21433011, 91527303, 21333001]
- Ministry of Science and Technology [2014CB239302, 2013CB933404, 2017YFA0205003]
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Self-similar fractal structures are of fundamental importance in science, mathematics, and aesthetics. A series of molecular defect-free Sierpifiski triangle fractals have been constructed on surfaces recently. However, the highest order of the fractals is only 4 because of the limitation of kinetic growth. Here complete fifth-order Sierpifiski triangles with a lateral length of 0.05 itm were successfully prepared in ultrahigh vacuum by a combination of templating and coassembly methods. Fe atoms, 4,4-dicyano-1,1':3',1-terphenyl, and 1,3-bis(4-pyridyl)benzene molecules were used to build fractals on the reconstructed Au(100)-(hex) surface. The new strategy may be applied to construct various Sierpifiski triangles of higher orders.
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