Hierarchical Supramolecular Nanostructures of Cyclic Hydrogen-Bonding Catemers in Dibenzo[ a, c ]phenazinecarboxylic Acid Discotic Liquid Crystals
Journal
Synthesis (Germany)
Journal Volume
55
Journal Issue
16
Pages
2581
Date Issued
2023-01-12
Author(s)
Chen, Yi Ru
Zhang, Yong Yun
Ong, Chi Wi
Yeh, Ming Che
Ye, Kai Shiang
Hsieh, Shu-Chen
Lee, Shern Long
Cheng, Kum Yi
Abstract
The hydrogen-bonding motif of dibenzo[a,c]phenazinecarboxylic acids can be enforced to form hierarchical cyclic hydrogenbonded 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.
Subjects
discotic molecules | hydrogen bonding | liquid crystals | scanning tunneling microscopy | supramolecules | trimers
Type
journal article