Influence of functional groups on the self-assembly of liquid crystals  

作　　者：Shanchao Tan Jiayu Tao Wendi Luo Hao Jiang Yuhong Liu Haijun Xu Qjngdao Zeng Hongyu Shi 

机构地区：[1]State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China [2]CAS Key Laboratory of Standardization and Measurement for Nanotechnology,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology(NCNST),Beijing 100190,China [3]Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,College of Chemical Engineering,Nanjing Forestry University,Nanjing 210037,China [4]Laboratory of Theoretical and Computational Nanoscience,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China [5]Center of Materials Science and Optoelectonics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [6]Sino-Danish Center for Education and Research,University of Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Chemical Letters》2021年第3期1149-1152,共4页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51875303,21773041,21972031);the National Basic Research Program of China(No.2016YFA0200700);the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB36000000)。

摘　　要：Functional groups in the molecule play an important role in the molecular o rganization process.To reveal the influence of functional groups on the self-assembly at interface,herein,the self-assembly structures of three liquid crystal molecules,which only differ in the functional groups,are explicitly characterized by using scanning tunneling microscopy(STM).The high-resolution STM images demonstrate the difference between the supramolecular assembly structures of three liquid crystal molecules,which attribute to the hydrogen bonding interaction andπ-πstacking interaction between different functional groups.The density functional theory(DFT)results also confirm the influence of these functional groups on the self-assemblies.The effort on the self-assembly of liquid crystal molecules at interface could enhance the understanding of the supramolecular assembly mechanism and benefit the further application of liquid crystals.

关 键 词：SELF-ASSEMBLY Liquid crystal Functional group Hydrogen bond π-πStacking interaction 

分 类 号：O753.2[理学—晶体学] O641.3