Synthesis 2023; 55(16): 2581-2585
DOI: 10.1055/a-2085-5125
paper
Special Issue Honoring Prof. Guoqiang Lin’s Contributions to Organic Chemistry

Hierarchical Supramolecular Nanostructures of Cyclic Hydrogen-Bonding Catemers in Dibenzo[a,c]phenazinecarboxylic Acid Discotic Liquid Crystals

Yi-Ru Chen
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
Chi Wi Ong
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
Ming-Che Yeh
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
Kai-shiang Ye
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
Shu-Chen Hsieh
a   Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
,
Shern-Long Lee
b   Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong 518060, P. R. of China
,
Kum-Yi Cheng
c   Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
,
Chun-hsien Chen
c   Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
› Author Affiliations
This work was supported by the Government of Guangdong Province (MOST108-2113-M-110-012, project title: 2D dynamic supramolecular assembly) and Shenzhen City (overseas talent set-up funding).


Abstract

The hydrogen-bonding motif of dibenzo[a,c]phenazinecarboxylic acids can be enforced to form hierarchical cyclic hydrogen-bonded trimers for creating a 3D Colh assembly at the mesophase, as demonstrated by X-ray diffraction. Scanning tunneling microscopy was used to characterize the formation of the cyclic trimers. Atomic force microscopy revealed the formation of nanopillars on a hydrophilized silica surface upon annealing from isotropic to room temperature.

Supporting Information



Publication History

Received: 12 January 2023

Accepted after revision: 03 May 2023

Accepted Manuscript online:
03 May 2023

Article published online:
23 May 2023

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