On-Surface Self-Assembly Kinetic Study of Cu-Hexaazatriphenylene 2D Conjugated Metal-Organic Frameworks on Coinage Metals and MoS₂ Substrates

Lyu, Chengkun1,2; Gao, Yifan3; Zhou, Kun4; Hua, Muqing5; Shi, Ziliang4; Liu, Pei-Nian6,7; Huang, Li3,8; Lin, Nian2

2024-07-01

10.1021/acsnano.4c05838

ACS NANO   影响因子和分区

1936-0851

1936-086X

Supramolecular coordination self-assembly on solid surfaces provides an effective route to form two-dimensional (2D) metal-organic frameworks (MOFs). In such processes, surface-adsorbate interaction plays a key role in determining the MOFs' structural and chemical properties. Here, we conduct a systematic study of Cu-HAT (HAT = 1,4,5,8,9,12-hexaazatriphenylene) 2D conjugated MOFs (c-MOFs) self-assembled on Cu(111), Au(111), Ag(111), and MoS2 substrates. Using scanning tunneling microscopy and density functional theory calculations, we found that the as-formed Cu(3)HAT(2) c-MOFs on the four substrates exhibit distinctive structural features including lattice constant and molecular conformation. The structural variations can be attributed to the differentiated substrate effects on the 2D c-MOFs, including adsorption energy, lattice commensurability, and surface reactivity. Specifically, the framework grown on MoS2 is nearly identical to its free-standing counterpart. This suggests that the 2D van der Waals (vdW) materials are good candidate substrates for building intrinsic 2D MOFs, which hold promise for next-generation electronic devices.

scanning tunneling microscopy 2D material molybdenum disulfide on-surface synthesis metal-organicframeworks density functional theory

SCI ; EI

英语

通讯

Hong Kong Research Grants Council[163001219] ; National Natural Science Foundation of China["21972101","12374059"]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001273675100001

AMER CHEMICAL SOC

Web of Science

1.Agcy Sci Tech & Res A STAR, Inst Mat Res & Engn IMRE, Singapore 138634, Singapore
2.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong 999077, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
4.Soochow Univ, Ctr Soft Condensed Matter Phys & Interdisciplinary, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
5.Suqian Univ, Dept Phys, Suqian 223800, Jiangsu, Peoples R China
6.E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China
7.E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China
8.Guangdong Hong Kong Macao Greater Bay Area Guangdo, Quantum Sci Ctr, Shenzhen 518045, Peoples R China

Lyu, Chengkun,Gao, Yifan,Zhou, Kun,et al. On-Surface Self-Assembly Kinetic Study of Cu-Hexaazatriphenylene 2D Conjugated Metal-Organic Frameworks on Coinage Metals and MoS₂ Substrates[J]. ACS NANO,2024.

Lyu, Chengkun.,Gao, Yifan.,Zhou, Kun.,Hua, Muqing.,Shi, Ziliang.,...&Lin, Nian.(2024).On-Surface Self-Assembly Kinetic Study of Cu-Hexaazatriphenylene 2D Conjugated Metal-Organic Frameworks on Coinage Metals and MoS₂ Substrates.ACS NANO.

Lyu, Chengkun,et al."On-Surface Self-Assembly Kinetic Study of Cu-Hexaazatriphenylene 2D Conjugated Metal-Organic Frameworks on Coinage Metals and MoS₂ Substrates".ACS NANO (2024).