Translator Disclaimer
5 January 2004 Molecular organization by head-to-tail recognition for polar liquid crystals
Author Affiliations +
Novel non-symmetric dimeric liquid crystal, 1-(4-cyanobiphenyl-4'-yloxy)-11-[2-(4-octylphenyl)pyrimidine-5-yloxy]undecane (8YP11OCB), has been prepared and the physical properties investigated by means of optical microscopy, differential scanning calorimetry (DSC), X-ray diffraction and dielectric measurements. The crystal structure has been determined to understand microscopic behavior of the compound. Electro-optical properties for 8YP11OCB were compared to those for 1-(4-cyanobiphenyl-4'-yloxy)-11-[4-(5-octylpyrimidine-2-yl)phenyl-4"-oxy]undecane (8PY11OCB). 8YP11OCB with smaller dielectric anisotropy than 8PY11OCB was found to show a lower threshold voltage in the smectic A phase than 8PY11OCB. Crystal structure of 8YP11OCB indicates that three types of core-core interactions exist and that the enthalpy gained by the specific interactions stabilizes the molecular packing with large free volume in the SmA phase.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Atsushi Yoshizawa, Tsuyoshi Narumi, Harutada Dewa, Shinobu Hatai, Norihisa Araake, Isa Nishiyama, Jun Yamamoto, and Hiroshi Yokoyama "Molecular organization by head-to-tail recognition for polar liquid crystals", Proc. SPIE 5213, Liquid Crystals VII, (5 January 2004);

Back to Top