SYNTHESIS AND SOME PROPERTIES OF 3-FLUORO-4-CYANOPHENYL 4 prime -n-ALKYLBENZOATES.

Article abstract of DOI:10.1080/00268948408078704

A series of 3-fluoro-4-cyanophenyl 4 prime -n-alkylbenzoates, which show monotropic nematic phases, was prepared and their transition temperatures and melting enthalpies were measured. The 3-fluoro-4-cyanophenyl 4 prime -n-propylbenzoate, 3-chloro-4-cyanophenyl 4 prime -n-propylbenzoate and 4-cyanophenyl 4 prime -n-propylbenzoate were mixed with a nematic mixture (A) of 4-n-alkoxyphenyl 4 prime -n-alkylcyclohexane-1 prime -carboxylates. 3-Fluoro-4-cyanophenyl 4 prime -n-propylbenzoate decreases the N-I transition temperature less, increases the birefringence more, and increases the bulk viscosity less than 3-chloro-4-cyanophenyl 4 prime -n-propylbenzoate, and reduces the threshold voltage to the greatest extent. The dielectric anisotropies of 3-fluoro-4-cyanophenyl 4 prime -n-propylbenzoate and 4-cyanophenyl 4 prime -n-propylbenzoate determined from a series of solutions of the compounds in nematic mixture (A) are 35. 9 and 29. 6, respectively.

Full text of DOI:10.1080/00268948408078704

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Molecular Crystals and Liquid Crystals
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Synthesis and Some Properties of 3-Fluoro-4-
Cyanophenyl 4′-n-alkylbenzoates
M. Sasaki a , K. Takeuchi a , H. Sat[obar] a & H. Takatsu a
a Dainippon Ink & Chemicals, Inc., 3–35–58, Sakashita, Itabashi, Tokyo, Japan
Published online: 20 Apr 2011.
To cite this article: M. Sasaki , K. Takeuchi , H. Sat[obar] & H. Takatsu (1984): Synthesis and Some Properties of 3-Fluoro-4-
Cyanophenyl 4′-n-alkylbenzoates, Molecular Crystals and Liquid Crystals, 109:2-4, 169-178
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