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  • Title: Ferrielectric smectic C phases stabilized using a chiral liquid crystal oligomer.
    Author: Noji A, Uehara N, Takanishi Y, Yamamoto J, Yoshizawa A.
    Journal: J Phys Chem B; 2009 Dec 17; 113(50):16124-30. PubMed ID: 19928866.
    Abstract:
    A chiral liquid crystal oligomer, (R)-1-methylheptyl 4'-{8-[4-(5-octylpyrimidin-2-yl)phenyloxy]octanoyloxy}biphenyl-4-carboxylate, was prepared. Its physical properties were investigated using optical microscopy, differential scanning calorimetry, and X-ray diffraction. The oligomer was found to exhibit two ferrielectric smectic C phases with a wide temperature range between ferroelectric and antiferroelectric smectic C phases. Furthermore, ferrielectric-like ordering was observed in a racemic mixture of the enantiomers. The oligomeric effect can produce highly chirality-dependent ordering in the racemic system.
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