Synthesis of optically active 4,4,4-trifluoro-3-{4-(4-methoxyphenyl)phenyl}butanoic acid and its application to chiral dopant for nematic liquid crystals

Journal of Fluorine Chemistry

Volumn 127, Issue 4-5 SPEC. ISS., 2006, Pages 620-626

  Tojo, Kenta ^a   Aoki, Yoshio ^a   Yasutake, Mikio ^a   Hirose, Takuji ^a  

^a SAITAMA UNIVERSITY   (Japan)

Author keywords

Chiral dopant; Helical twisting power; Nematic liquid crystals; Trifluoromethyl asymmetric frame

Indexed keywords

EID: 33646390128     PISSN: 00221139     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jfluchem.2005.11.005     Document Type: Article

References (19)

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17. CCDC 290218 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge via www.ccdc.cam.ac.uk/conts/retrieving (or from the CCDC, 12 Union Road, Cambridge CB2 1EZ, UK; fax: +44 1223 336033; e-mail: deposit@ccdc.cam.ac.uk).
18. The host liquid crystalline mixture (ZLI-1132, Merck) consists of 4-(4-propylcyclohexyl)cyanobenzene (24 wt.%), 4-(4-penthylcyclohexyl)cyanobenzene (36 wt.%), 4-(4-heptylcyclohexyl)cyanobenzene (25 wt.%), and 4-{4-(4-pentylcyclohexyl)phenyl}cyanobenzene (15 wt.%). The host liquid crystalline mixture shows nematic liquid crystal phase at the range from -6 to 70 °C. The dielectric anisotropy (Δε) of the host nematic liquid crystalline mixture is +10.7, and the optical anisotropy (Δn) of the host liquid crystalline mixture is 0.14.
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