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, T. Kato

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2875-2886
Number of pages12
JournalJournal of Materials Chemistry
Volume11
Issue number11
DOIs
Publication statusPublished - 2001 Dec 17
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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