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KMID : 1059520040480050499
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Journal of the Korean Chemical Society
2004 Volume.48 No. 5 p.499 ~ p.503
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Synthesis of trans, trans-4-(2-Fluoro-3-isothiocyanato-4-propylphenyl)-4-alkylbicyclohexyl for Liquid Crystal Display
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Lee S.-H.
Kim S.-H.
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Abstract
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We designed and synthesized compounds which have negative dielectric anisotropy (N type) for VA-LCD mode. Due to the large dipole moments toward the minor axis of molecule and anisotropy of polarizability, they can be used as N type LC. F atom and NCS group and propyl group were introduced as substituents on bicyclohexylbenzene core unit and alkyl chains (propyl~heptyl) were introduced on terminal part. All of the synthesized compounds showed negative dielectric anisotropy as expected.
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KEYWORD
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NCS, Negative Dielectric Anisotropy, VA Mode, LCD, Liquid Crystal
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