Syntheses And Properties of Multi-armed Molecules with Imidazolium Units.

DOI
  • nemoto daiki
    Department of Applied Chemistry, Graduate School of Urban Environmental sciences, Tokyo Metropolitan University
  • sato kiyoshi
    Department of Applied Chemistry, Graduate School of Urban Environmental sciences, Tokyo Metropolitan University
  • yamaguchi motowo
    Department of Applied Chemistry, Graduate School of Urban Environmental sciences, Tokyo Metropolitan University

Bibliographic Information

Other Title
  • イミダゾリウム基を含むマルチアーム分子の合成と物性評価

Abstract

We have synthesized 1,3,5-tris(1-(3-butylimidazolio)methyl)-trimetylbenzene. And we have assessment that tripodal molecule with imidazolium group. In the result, we found out that the multi-armed molecules showed complexation with halide ions and the ratio of the complexation by the molecules we synthesized and the halide ions is 1:1. Host-guest complexization and liquid crystalline properties of novel multi-armed molecule with six imidazolium units 2 were investigated. The 1H-NMR titration experiment in CD3CN show a significant shift of im-2 protons to lower magnetic field by addition of Bu4N+Br-. The liquid crystalline properties of compound 2 are investigated by polarizing optical microscopy. Liquid crystalline phases were observed around 150Co. The phase transition temperatures of 2 are depending on the alkyl chain length and the counter ion.

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Keywords

Details 詳細情報について

  • CRID
    1390282680532476288
  • NII Article ID
    130004729254
  • DOI
    10.11494/kisoyuki.2010.0.3p28.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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