| 含氟液晶MB80.5(F)的结构研究 |
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| 引用本文： | 王新久,A.J.Leadbetter,G.Etherington.含氟液晶MB80.5(F)的结构研究[J].清华大学学报(自然科学版),1986(6). |
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| 作者姓名： | 王新久 A.J.Leadbetter G.Etherington |
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| 作者单位： | 现代应用物理系，英国卢瑟福实验室，英国卢瑟福实验室 |
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| 摘 要： | 含氟有机化合物Ｃ８Ｈ１７Ｏ－ Ｏ－Ｏ－ＣＯＯ－Ｏ－Ｃ５Ｈ１１（以下简称 ＭＢ８０．５（Ｆ））呈现比较复杂的液晶相。本文对单畴的ＭＢ８０．５（Ｆ）样品，应用Ｘ光衍射技术，采用二维多丝正比位敏计数器来探测，确定了ＭＢ８０．５（Ｆ）呈现的几种液晶相的类型，及其相变温度。本文还测量了ＭＢ８０．５（Ｆ）的分子表现长度、近邻分子的间距、三种近晶相ＳＡ、和ＳＦ的层厚以及ＳＣ相的分子倾斜角与温度的变化关系。
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| 关 键 词： | 液晶 含氟液晶 近晶A(A F)相 二维位敏探测器 X光衍射 |
Structural Investigation of Fluirid-Bearing Liquid Crystal of MB80.5 (F) by X-Ray Diffraction |
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| Wang Xinjiu.Structural Investigation of Fluirid-Bearing Liquid Crystal of MB80.5 (F) by X-Ray Diffraction[J].Journal of Tsinghua University(Science and Technology),1986(6). |
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| Authors: | Wang Xinjiu |
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| Abstract: | The fluorid-bearing organic compound (abbreviation MB80.5 (F) below) exhibits more complex liquid crystal phases. Its phases and phase transition temeratures have been determined by X-ray diffraction technique with 2D multi-wire position-sensitive detector for single domain of the sample. The temperature dependences of the apparent molecular lengths and the distances of neighbouring molecules of all the phases, the smectic layer thicknesses of three smectic phases S., Sc and SF, as well as the tilt angles of the molecules in the layers of the Sc phase have also been measured. |
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| Keywords: | liquid crystal smectic A(C F) phase fluorid-bearing liquid crystal 2D positive-sensitive detector X-ray diffraction |
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