On-Surface Synthesis of Electron-Deficient Bisanthene Tetraimide  

作　　者：Ye Liu Liangliang Chen Hailong Li Xi-Sha Zhang Qigang Zhong Zhengming Hao Minghui Wu Yan-Ying Huang Lina Wang Minchong Sheng Miao Xie Haiming Zhang Deqing Zhang Lifeng Chi 

机构地区：[1]Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices,Institute of Functional Nano&Soft Materials(FUNSOM),Soochow University,Suzhou,Jiangsu 215123 [2]CAS Key Laboratory for Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190 [3]Institute of Applied Physics,Justus Liebig University Giessen,Giessen 35392

出　　处：《CCS Chemistry》2024年第3期672-681,共10页中国化学会会刊（英文）

基　　金：support from the National Natural Science Foundation of China(grant nos.22161132026,21790053,51821002,and 21602225);the Suzhou Key Laboratory of Surface and Interface Intelligent Matter(grant no.SZS2022011);the Collaborative Innovation Center of Suzhou Nano Science and Technology;the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);the 111 project.

摘　　要：Imide-based conjugated molecules have emerged as a highly promising class of building blocks for constructing n-type semiconducting materials with lowlying lowest unoccupied molecular orbitals and exceptional stability.Although imides,such as naphthalene diimides,perylene diimides and their lateral fused analogs,have been synthesized extensively,the design and synthesis of largerπ-extended molecules incorporating more than two imide groups are desirable but still very challenging.Herein,we report the synthesis of an unprecedented electron-deficient bisanthene tetraimide(ATI)containing a bisantheneconjugated core and four five-membered imide groups,which was successfully achieved via a combined approach of solution and on-surface synthesis.The chemical structures,electronic states,formation mechanism and aromaticity of ATI were systematically investigated by scanning tunneling microscopy,noncontact atomic force microscopy,scanning tunneling spectroscopy,and density functional theory calculations.

关 键 词：on-surface synthesis ELECTRON-DEFICIENT bisanthene tetraimide DEHYDROCYCLIZATION low lowest unoccupied molecular orbital level 

分 类 号：O62[理学—有机化学]