Design, Synthesis and Physical Properties of New Liquid Crystal Materials for Active Matrix LCD (2): New Aromatic Ring Systems Prepared by Regioselective Fluorination as New Mesogens Containing Fluorines

Novel 1-fluoro- and 1,2-difluoronaphthalene derivatives were designed for active matrix LCD and were prepared through the regioselective fluorination of 6-substituted 2-naphthols. These compounds exhibited high nematic-isotropic transition temperatures with very large dielectric anisotropy and large...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 2001-08, Vol.364 (1), p.865-872
Main Authors: Negishi, Makoto, Ogawa, Shinji, Osawa, Masashi, Kawara, Tatsuo, Kusumoto, Tetsuo, Takeuchi, Kiyofumi, Takehara, Sadao, Takatsu, Haruyoshi
Format: Article
Language:English
Subjects:
active matrix LCD
Applied sciences
birefringences
dielectiric anisotropy
Display
Electronics
Exact sciences and technology
fluorinated naphthalene
fused ring structure
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Summary:Novel 1-fluoro- and 1,2-difluoronaphthalene derivatives were designed for active matrix LCD and were prepared through the regioselective fluorination of 6-substituted 2-naphthols. These compounds exhibited high nematic-isotropic transition temperatures with very large dielectric anisotropy and large birefringences. These results are useful for design of new liquid crystal mixtures for TFT-displays.
ISSN:1058-725X
DOI:10.1080/10587250108025059