Development of Fully Insulated Oligothiophenes and Chemical Evaluationof Insulation Effect.

DOI
  • ENDOU Masaru
    The Institute of Scientific and Industorial Research, Osaka univ.
  • HAN Aihong
    Japan Science and Technology Agency, CREST
  • IE Yutaka
    The Institute of Scientific and Industorial Research, Osaka univ.
  • Aso Yoshio
    The Institute of Scientific and Industorial Research, Osaka univ. Japan Science and Technology Agency, CREST

Bibliographic Information

Other Title
  • 被覆型オリゴチオフェンの開発と被覆効果の化学的評価

Abstract

We have developed oligothiophene molecular wires which are fully insulated by bulky groups at every thiophenes. Oligothiophenes bearing bulky silyl group or spiro substituted fluorene were synthesised. About latter oligomers we succeeded in introducing terminal group by cross coupling method. Molecular structure from X-ray crystalography and red shift of absorption maxima indicated that these oligomers keep effective conjugation length and planarity. To evaluate insulation effect, electronic absorption spectra of chemically oxidated spesies at -50 degC was mearsuresd. Wlile non insulated ones showed paeks attributable to dimeric species, insulated ones showed no dimeric peaks proving these molecular wires have effective insulation effect for ideal single molecular erectronics.

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Keywords

Details 詳細情報について

  • CRID
    1390001205554418304
  • NII Article ID
    130004646296
  • DOI
    10.11494/kisoyuki.37.0.6.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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