Citation: Shanchao Tan, Jiayu Tao, Wendi Luo, Hao Jiang, Yuhong Liu, Haijun Xu, Qingdao Zeng, Hongyu Shi. Influence of functional groups on the self-assembly of liquid crystals[J]. Chinese Chemical Letters, ;2021, 32(3): 1149-1152. doi: 10.1016/j.cclet.2020.09.016 shu

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

Shanchao Tan ^{a, b, 1} ,
Jiayu Tao ^{c, 1} ,
Wendi Luo ^{d, f, 1} ,
Hao Jiang ^c ,
Yuhong Liu ^{a, ***,} ,
Haijun Xu ^{c, ***,} ,
Qingdao Zeng ^{b, e, *,} ,
Hongyu Shi ^{a, b, **,}

a.
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
b.
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
c.
Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
d.
Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
e.
Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
f.
Sino-Danish Center for Education and Research, University of Chinese Academy of Sciences, Beijing 100190, China

^**

^***

liuyuhong@tsinghua.edu.cn

xuhaijun@njfu.edu.cn

zengqd@nanoctr.cn

shihongyu1991@126.com

Received Date: 21 August 2020
Revised Date: 8 September 2020
Accepted Date: 9 September 2020
Available Online: 12 September 2020

Figures(4)

Functional groups in the molecule play an important role in the molecular organization 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 and π-π stacking 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.
- Self-assembly,
- Liquid crystal,
- Functional group,
- Hydrogen bond,
- π-π Stacking interaction
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