Direct transformation of n-alkane into all-trans conjugated polyene via cascade dehydrogenation  

作　　者：Xuechao Li Kaifeng Niu Junjie Zhang Xiaojuan Yu Haiming Zhang Yuemin Wang Qing Guo Pengdong Wang Fangsen Li Zhengming Hao Chaojie Xu Yanning Tang Zhichao Xu Shuai Lu Peng Liu Guigu Xue Yen Wei Lifeng Chi 

机构地区：[1]Jiangsu Key Laboratory for Carbon Based Functional Materials&Devices,Institute of Functional Nano&Soft Materials,Soochow University,Suzhou 215123,China [2]Institute of Functional Interfaces,Karlsruhe Institute of Technology,Eggenstein-Leopoldshafen 76344,Germany [3]Department of Chemistry,Southern University of Science and Technology,Shenzhen 518055,China [4]Vacuum Interconnected Nanotech Workstation(Nano-X),Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China [5]Key Laboratory of Organic Optoelectronics and Molecular Engineering,Department of Chemistry,Tsinghua University,Beijing 100084,China [6]Department of Physics,Chemistry and Biology,IFM,Linkoping University,58183 Linkoping,Sweden

出　　处：《National Science Review》2021年第10期37-44,共8页国家科学评论（英文版）

基　　金：supported by the Ministry of Science and Technology of the People’s Republic of China(2017YFA0205000 and 2017YFA0205002);the National Natural Science Foundation of China(21790053 and 51821002);the Collaborative Innovation Center of Suzhou Nano Science&Technology;the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);the 111 Project;the financial support by the German Research Foundation(392178740 and 426888090)。

摘　　要：Selective C(sp^(3))-H activation is of fundamental importance in processing alkane feedstocks to produce high-value-added chemical products.By virtue of an on-surface synthesis strategy,we report selective cascade dehydrogenation of n-alkane molecules under surface constraints,which yields monodispersed all-trans conjugated polyenes with unprecedented length controllability.We are also able to demonstrate the generality of this concept for alkyl-substituted molecules with programmable lengths and diverse functionalities,and more importantly its promising potential in molecular wiring.

关 键 词：C(sp^(3))-H activation alkane transformation on-surface synthesis DEHYDROGENATION molecular wiring 

分 类 号：TQ221.2[化学工程—有机化工]