题名 | Surface-Dependent Chemoselectivity in C-C Coupling Reactions |
作者 | |
通讯作者 | Chen, Zhi; Lin, Tao; Klappenberger, Florian; Ruben, Mario |
发表日期 | 2019-06-17
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DOI | |
发表期刊 | |
ISSN | 1433-7851
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EISSN | 1521-3773
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卷号 | 58期号:25页码:8356-8361 |
摘要 | Surface-confined covalent coupling reactions of the linear compound 4-(but-3-en-1-ynyl)-4 '-ethynyl-1,1 '-biphenyl (1), which contains one alkyne and one enyne group on opposing ends, have been investigated using scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. The reactions show a surface-dependent chemoselectivity: on Au(111), compound 1 preferentially yields cyclotrimerization products, while on Cu(111), a selective coupling between the enyne and alkyne groups is observed. Linear, V-shaped string formations combined with Y-shaped bifurcation motifs result in a random reticulation on the entire surface. DFT calculations show that the C-H...pi(delta-) transition state of the reaction between the deprotonated alkyne group and a nearby H-donor of the alkene group plays a key role in the mechanism and high chemoselectivity. This study highlights a concept that opens new avenues to the surface-confined synthesis of covalent carbon-based sp-sp(2) polymers. |
关键词 | |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
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重要成果 | NI期刊
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学校署名 | 其他
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资助项目 | Shenzhen Science and Technology Planning[JCYJ20170818143327496]
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WOS研究方向 | Chemistry
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WOS类目 | Chemistry, Multidisciplinary
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WOS记录号 | WOS:000476608700010
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出版者 | |
EI入藏号 | 20192106951444
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EI主题词 | Chemical bonds
; Density functional theory
; Group theory
; Olefins
; Scanning tunneling microscopy
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EI分类号 | Physical Chemistry:801.4
; Chemical Reactions:802.2
; Organic Compounds:804.1
; Algebra:921.1
; Probability Theory:922.1
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ESI学科分类 | CHEMISTRY
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来源库 | Web of Science
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引用统计 |
被引频次[WOS]:12
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成果类型 | 期刊论文 |
条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/25678 |
专题 | 理学院_物理系 |
作者单位 | 1.KIT, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany 2.TUM, Dept Phys E20, D-85748 Garching, Germany 3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 4.Univ Strasbourg, CNRS, IPCMS, F-67034 Strasbourg, France 5.Shenzhen Univ, Coll Phys & Optoelect Engn, Minist Educ, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Shenzhen 518060, Peoples R China 6.Shenzhen Technol Univ, Coll New Mat & New Energies, Shenzhen 518118, Peoples R China |
推荐引用方式 GB/T 7714 |
Chen, Zhi,Lin, Tao,Zhang, Liding,et al. Surface-Dependent Chemoselectivity in C-C Coupling Reactions[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2019,58(25):8356-8361.
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APA |
Chen, Zhi.,Lin, Tao.,Zhang, Liding.,Zhang, Lei.,Xiang, Bingxi.,...&Ruben, Mario.(2019).Surface-Dependent Chemoselectivity in C-C Coupling Reactions.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,58(25),8356-8361.
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MLA |
Chen, Zhi,et al."Surface-Dependent Chemoselectivity in C-C Coupling Reactions".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 58.25(2019):8356-8361.
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条目包含的文件 | 条目无相关文件。 |
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