Hydrogen-bonded liquid crystals built from hydrogen-bonding donors and acceptors: Infrared study on the stability of the hydrogen bond between carboxylic acid and pyridyl moieties

Takashi Kato*, Toshiyuki Uryu, Fumiko Kaneuchi, Chihiro Jin, Jean M J Fréchet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

194 Scopus citations

Abstract

The stability of a hydrogen-bonded complex built through inter-molecular hydrogen bonding between carboxylic acid and pyridine fragments has been examined using infrared spectroscopy. Infrared spectra as a function of temperature have been recorded for the 1:1 complex of 4-hexyloxybenzoic acid and trans-4-propoxy-4′-stilbazole from the crystalline state to the isotropic state. A dependence of the stability of the hydrogen bond on molecular orientation is observed clearly in the infrared spectra. The spectra also suggest that the hydrogen bond is an unionized type with a double minimum potential energy.

Original languageEnglish (US)
Pages (from-to)1311-1317
Number of pages7
JournalLiquid Crystals
Volume14
Issue number5
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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