Synthesis of Fluorine-Containing Ferroelectric Liquid Crystals
| Autor: | Keiichi Nito, Seiichi Arakawa, Jun'etsu Seto |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Biphenyl
chemistry.chemical_classification Materials science organic chemicals Carboxylic acid Inorganic chemistry chemistry.chemical_element Ferroelectricity Amino acid chemistry.chemical_compound Crystallography Hydrofluoric acid chemistry Liquid crystal Asymmetric carbon Fluorine heterocyclic compounds |
| Zdroj: | Molecular Crystals and Liquid Crystals. 204:15-25 |
| ISSN: | 1056-8816 |
| DOI: | 10.1080/00268949108046590 |
| Popis: | Ferroelectric liquid crystals having a fluorine atom at an asymmetric carbon were synthesized by means of a new method without hydrofluoric acid. An amino acid, L-isoleucine, is converted to (R,S)-α-fluorinated chiral carboxylic acid. Biphenyl and triphenyl type liquid crystals are easily synthesized using this fluorinated carboxylic acid, which show a large spontaneous polarization of 200 nC/cm2 for the biphenyl type and 300 nC/cm2 for the triphenyl type. The electro-optic properties of the mixtures consisting of the chiral compound and various non-chiral smectic C (SmC) compounds are also described. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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