Synthesis and Function of Insulated Molecular Devices Bearing [1]Rotaxane Structure

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  • Terao Jun
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University

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  • ［1］ロタキサン構造を有する被覆型分子素子の合成と機能
  • ロタキサン構造を有する被覆型分子素子の合成と機能(1)
  • ロタキサン コウゾウ オ ユウスル ヒフクガタ ブンシ ソシ ノ ゴウセイ ト キノウ(1)

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Insulated conductive molecules, in which the π-conjugated compounds are covered by a cyclic protective sheath, have attracted considerable attention because of their potential applicability in next-generation molecular electronic devices. We have developed new methods of synthesizing insulated π-conjugated molecules involving the self-inclusion of rotaxane precursors linking π-conjugated units as a guest and permethylated cyclodextrin (PM CD) as a macrocyclic host. A new method for synthesizing insulated molecular wire (IMW) through the polymerization of insulated π-conjugated molecules as monomers was also developed. The obtained IMWs are highly soluble in organic solvents and have a high covering ratio, rigidity, and photoluminescence efficiency; further, they show high charge mobility, even in the solid state. This paper also highlights a new type of molecular wiring method based on the polymerization or co-polymerization of an insulated π-conjugated monomer between nanosized electrodes.

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