Growth of covalently bonded Sierpiński triangles up to the second generation

Gaochen Gu; Na Li; Liwei Liu; Xue Zhang; Qimeng Wu; Damian Nieckarz; Pawel Szabelski; Lianmao Peng; Boon K. Teo; Shimin Hou; Yongfeng Wang

doi:10.1039/c6ra13627c

Growth of covalently bonded Sierpiński triangles up to the second generation

Gaochen Gu
, Na Li
, Liwei Liu
, Xue Zhang
, Qimeng Wu
, Damian Nieckarz
, Pawel Szabelski
, Lianmao Peng
, Boon K. Teo
, Shimin Hou^*
, Yongfeng Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Growth of covalently bonded Sierpiński 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.

Original language	English
Pages (from-to)	66548-66552
Number of pages	5
Journal	RSC Advances
Volume	6
Issue number	71
DOIs	https://doi.org/10.1039/c6ra13627c
Publication status	Published - 2016
Externally published	Yes

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@article{2686dae8405e42b084bf10ab2a43b135,

title = "Growth of covalently bonded Sierpi{\'n}ski triangles up to the second generation",

abstract = "Growth of covalently bonded Sierpi{\'n}ski 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.",

author = "Gaochen Gu and Na Li and Liwei Liu and Xue Zhang and Qimeng Wu and Damian Nieckarz and Pawel Szabelski and Lianmao Peng and Teo, \{Boon K.\} and Shimin Hou and Yongfeng Wang",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

doi = "10.1039/c6ra13627c",

language = "English",

volume = "6",

pages = "66548--66552",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "71",

}

TY - JOUR

T1 - Growth of covalently bonded Sierpiński triangles up to the second generation

AU - Gu, Gaochen

AU - Li, Na

AU - Liu, Liwei

AU - Zhang, Xue

AU - Wu, Qimeng

AU - Nieckarz, Damian

AU - Szabelski, Pawel

AU - Peng, Lianmao

AU - Teo, Boon K.

AU - Hou, Shimin

AU - Wang, Yongfeng

PY - 2016

Y1 - 2016

N2 - Growth of covalently bonded Sierpiński 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.

AB - Growth of covalently bonded Sierpiński 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.

UR - https://www.scopus.com/pages/publications/84979503732

U2 - 10.1039/c6ra13627c

DO - 10.1039/c6ra13627c

M3 - Article

AN - SCOPUS:84979503732

SN - 2046-2069

VL - 6

SP - 66548

EP - 66552

JO - RSC Advances

JF - RSC Advances

IS - 71

ER -

Growth of covalently bonded Sierpiński triangles up to the second generation

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