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2008 Volume 17 Issue 1
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Ma Heng, Sun Rui-Zhi, Li Zhen-Xin, Liu Yu-Fang. 2008: Temperature dependence of ratio between dielectric anisotropy and order parameter in fluorinated nematic liquid crystals, Chinese Physics B, 17(1): 255-258.
Citation: Ma Heng, Sun Rui-Zhi, Li Zhen-Xin, Liu Yu-Fang. 2008: Temperature dependence of ratio between dielectric anisotropy and order parameter in fluorinated nematic liquid crystals, Chinese Physics B, 17(1): 255-258.
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Temperature dependence of ratio between dielectric anisotropy and order parameter in fluorinated nematic liquid crystals

  • College of Physics and Information,Henan Normal University,Xinxiang 453007,China

  • Department of Life Science and Technology,Xinxiang Meclicai College,Xinxiang 453003,China

  • Available Online: 30/01/2008
  • Fund Project: the National Natural Science Foundation of China (Grant 60577050)
  • Temperature dependence of ratio between dielectric anisotropy and order parameter of fluorinated nematic liquid crystal is investigated by using a semi-empirical molecular orbital package that can accurately calculate an angle between molecular dipole moment and long axis.We optimize the molecular conformations with three semi-empirical Hamiltonians AM1,PM3 and PM5,and then make a comparison between computational results and experimental measurements.It is shown that the results obtained from AM1 method are in good agreement with the measurements.The present study offers an applicable method to predict the dielectric properties of liquid crystal material.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Temperature dependence of ratio between dielectric anisotropy and order parameter in fluorinated nematic liquid crystals

  • Available Online: 30/01/2008

Abstract: Temperature dependence of ratio between dielectric anisotropy and order parameter of fluorinated nematic liquid crystal is investigated by using a semi-empirical molecular orbital package that can accurately calculate an angle between molecular dipole moment and long axis.We optimize the molecular conformations with three semi-empirical Hamiltonians AM1,PM3 and PM5,and then make a comparison between computational results and experimental measurements.It is shown that the results obtained from AM1 method are in good agreement with the measurements.The present study offers an applicable method to predict the dielectric properties of liquid crystal material.

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