Growth of covalently bonded Sierpinski triangles up to the second generation | |
Gu, Gaochen ; Li, Na ; Liu, Liwei ; Zhang, Xue ; Wu, Qimeng ; Nieckarz, Damian ; Szabelski, Pawel ; Peng, Lianmao ; Teo, Boon K. ; Hou, Shimin ; Wang, Yongfeng | |
刊名 | RSC ADVANCES
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2016 | |
关键词 | CRYSTALS FRACTALS SURFACES |
DOI | 10.1039/c6ra13627c |
英文摘要 | Growth of covalently bonded Sierpinski triangles (CB-STs) on metal surfaces was investigated by scanning tunneling microscopy (STM). Three synthetic strategies (namely, dehydration condensation, cyclotrimerization coupling and Schiff-base reactions) were used to fabricate CB-STs. Second-generation CB-STs were obtained at the solid-vacuum interface utilizing the Schiff-base reaction between 4,4"-dialdehyde-1,1': 3',1"-terphenyl (TPDAL) and 1,3,5-tris(4-aminophenyl) benzene (TAPB) on Au(111). The CB-ST patterns persist at annealing temperatures as high as 500 K. Homotactic three-fold motifs, insufficient migration and irreversible covalent reaction are the main limitations for growing higher-generation STs. The present results provide new insights on the growth of STs on metal surfaces.; National Natural Science Foundation of China [21522301, 21373020, 21403008, 61321001, 21433011, 61271050]; Ministry of Science and Technology [2014CB239302, 2013CB933404]; Research Fund for the Doctoral Program of Higher Education [20130001110029]; SCI(E); ARTICLE; smhou@pku.edu.cn; yongfengwang@pku.edu.cn; 71; 66548-66552; 6 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/492493] ![]() |
专题 | 信息科学技术学院 |
推荐引用方式 GB/T 7714 | Gu, Gaochen,Li, Na,Liu, Liwei,et al. Growth of covalently bonded Sierpinski triangles up to the second generation[J]. RSC ADVANCES,2016. |
APA | Gu, Gaochen.,Li, Na.,Liu, Liwei.,Zhang, Xue.,Wu, Qimeng.,...&Wang, Yongfeng.(2016).Growth of covalently bonded Sierpinski triangles up to the second generation.RSC ADVANCES. |
MLA | Gu, Gaochen,et al."Growth of covalently bonded Sierpinski triangles up to the second generation".RSC ADVANCES (2016). |
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