Molecular Recognition of the Dichiral Liquid Crystals Containing Fluorines

Novel dichiral liquid crystal compound 2-[4-((R)-2-fluorohexyloxy)phenyl]-5-[4-((S)-2-fluoro-2-methyldecanoyloxy)phenyl]-pyrimidine((R,S)-1) exhibits new optically isotropic phase (IsoX) with an endothermic transition enthalpy on cooling. In contrast, (S,S)-1 did not show the unusual transition. How...

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Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 1999-08, Vol.330 (1), p.227-234
Main Authors: Kusumoto, Tetsuo, Sato, Ken-Ichi, Katoh, Miho, Matsutani, Hiroshi, Yoshizawa, Atsushi, Ise, Noriko, Umezawa, Junko, Takanishi, Yoichi, Takezoe, Hideo, Hiyama, Tamejiro
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
dichiral ferroelectric liquid crystals
endothermic transition
Exact sciences and technology
Liquid crystals
molecular aggregation
molecular recognition
new optically isotropic phase
Physics
Structure of solids and liquids
crystallography
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Summary:Novel dichiral liquid crystal compound 2-[4-((R)-2-fluorohexyloxy)phenyl]-5-[4-((S)-2-fluoro-2-methyldecanoyloxy)phenyl]-pyrimidine((R,S)-1) exhibits new optically isotropic phase (IsoX) with an endothermic transition enthalpy on cooling. In contrast, (S,S)-1 did not show the unusual transition. However, a 1:1 mixture of (S,S)-1 and (R,R)-1 exhibited IsoX phase. These results suggest that the appearance of IsoX phase is attributed to a chirality-dependent molecular recognition.
ISSN:1058-725X
DOI:10.1080/10587259908025596