Columnar Liquid-Crystalline Macrocycles Synthesized via Metal Ion-Assisted Self-Assembly.
Inorg Chem
; 57(7): 3913-3919, 2018 Apr 02.
Article
em En
| MEDLINE
| ID: mdl-29553251
ABSTRACT
Columnar assemblies of liquid-crystalline (LC) macrocycles hold promise for the construction of nanochannels in fluid materials. Metal-assisted self-assembly is an efficient way to prepare LC macrocycles. A large π-conjugated ligand, 9,10-diphenylanthracene (DPA) bearing two ß-diketones, was prepared as a building unit for the macrocycle, and a series of side chains were incorporated into the DPA to yield LC materials. The bis(ß-diketone) ligands on DPA allow for the efficient formation of triangular 33 metallomacrocycles in the presence of square-planar Cu2+ ions. The copper-containing 33 metallomacrocycle with the appropriate side chains exhibited thermotropic columnar LC phases in which the columns were arranged in rectangular arrays over a wide temperature range, and well-ordered birefringent textures were observed under a polarized microscope.
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MEDLINE
Idioma:
En
Revista:
Inorg Chem
Ano de publicação:
2018
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Article