Some physical properties of liquid crystalline 1H6Bi compound

Relaxation phenomena in ferroelectric/antiferroelectric 1H6Bi LC compound studied. The structure of 1H6Bi molecule has been optimized and the stiffness of the molecule with respect to some of its chemical bonds has been estimated. Broadband dielectric measurements of 1H6Bi showed a number of relaxat...

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Bibliographic Details
Published in:Journal of molecular liquids 2015-01, Vol.201, p.43-49
Main Authors: Bąk, G.W., Wojciechowski, M., Tykarska, M.
Format: Article
Language:English
Subjects:
Dielectric spectroscopy
Ferroelectric/antiferroelectric liquid crystals
Molecular structure
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Summary:Relaxation phenomena in ferroelectric/antiferroelectric 1H6Bi LC compound studied. The structure of 1H6Bi molecule has been optimized and the stiffness of the molecule with respect to some of its chemical bonds has been estimated. Broadband dielectric measurements of 1H6Bi showed a number of relaxation modes corresponding to various LC phases. The parameters of the modes are presented and interpreted. •Rod-like and arc-like conformers of 1H6Bi molecule are found to exist.•The arc-like molecules possess comparatively great both dipole moment and its y-component perpendicular to the long axis of molecules.•Ferrielectric SmCγ⁎ subphase, not registered before by DSC measurements, is suggested to exist in the temperature range 48°C and 88°C.
ISSN:0167-7322
1873-3166
DOI:10.1016/j.molliq.2014.11.020