Tetrathiafulvalene structure based liquid crystal compound and preparation method thereof

A technology of tetrathiafulvalene and compound, applied in steroid compound, chemical instrument and method, liquid crystal material, etc., can solve the problem of not preparing liquid crystal compound and the like

Inactive Publication Date: 2011-07-20
YANBIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no highly ordered hexagonal columnar phase liquid crystal (Col ho ) and a liquid crystal compound with a single liquid crystal phase and a wide range of liquid crystal phases

Method used

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Abstract

The invention discloses a liquid crystal compound shown as a general formula (I) and a preparation method thereof. The invention aims at providing a tetrathiafulvalene structure based liquid crystal compound and a preparation method thereof, wherein the compound has wide liquid crystalline phase temperature range and single phase change and can form glassy-state liquid crystals in the cooling process. The compound provided by the invention has the general formula (I), wherein R is cholesteryl, and n is 2-5,7. The compound is obtained by carrying out self-coupling reaction on 4,5-bis(cholestenoxycarbonyl-alkylthio)-1,3-dithiole-2-ketone in a triethyl sulfite medium. The compound disclosed by the invention has the characteristics of single phase change, high thermal stability, simpleness in preparation, and the like and has a smectic A phase (Sma, n=2-5) and an ordered hexagonal prism phase (Colho, n=7).

Description

technical field The invention relates to a liquid crystal compound and its preparation method, in particular to a liquid crystal compound with tetrathiafulvalene and cholesterol having a wide temperature range of liquid crystal phase, single phase behavior and high thermal stability and its preparation method. Background technique As a good electron donor, tetrathiafulvalene has been used in the research of organic conductors and organic superconductors for a long time. With the development of molecular science, tetrathiafulvalene has penetrated into various research fields of supramolecular science, material science and nanoscience (J.Yamamoto and T.Sugimoto, TTF Chemistry Ed: Kodansha and Springer, Tokyo, 2004; J . Segura and A. Martin, Angew. Chem. Int. Ed., 2001, 40, 1372; J. Jeppesen, M. Nielsen and J. Becher, Chem. Rev., 2004, 104, 5115). Compared with the research on the function of tetrathiafulvalene derivatives, there are relatively few researches on the preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J33/00C09K19/36
Inventor 尹炳柱侯瑞斌王汉
Owner YANBIAN UNIV
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