Issue 11, 2001

Abstract

Folic acid derivatives having 2-(3,4-dialkoxyphenyl)ethyl moieties have been found to exhibit thermotropic liquid-crystalline behavior. Smectic and discotic phases are observed for these compounds over wide temperature ranges. X-Ray diffraction and infrared measurements show that the formation of the smectic and discotic phases is due to the ribbon- and disk-like structures of the pterin rings of folic acid, respectively. The smectic phase is changed to a hexagonal columnar phase by the addition of alkali metal salts. This behavior is attributed to the change of the hydrogen-bonded structures from ribbon to disk induced by the ion–dipolar interactions.

Graphical abstract: Self-assembly of thermotropic liquid-crystalline folic acid derivatives: hydrogen-bonded complexes forming layers and columns

Article information

Article type
Paper
Submitted
10 Apr 2001
Accepted
23 May 2001
First published
02 Oct 2001

J. Mater. Chem., 2001,11, 2875-2886

Self-assembly of thermotropic liquid-crystalline folic acid derivatives: hydrogen-bonded complexes forming layers and columns

K. Kanie, M. Nishii, T. Yasuda, T. Taki, S. Ujiie and T. Kato, J. Mater. Chem., 2001, 11, 2875 DOI: 10.1039/B103168F

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