有機/無機界面での物質認識を基軸とする無機ナノクラスター種の機能開拓 Functionalization of Inorganic Nanoclusters based on the Molecular Recognition Events at the Heterogeneous Interface

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著者

    • 平谷 卓之 HIRATANI Takayuki
    • 北海道大学大学院環境科学院 Creative Research Initiative "Sousei" (CRIS), and Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University
    • 小西 克明 KONISHI Katsuaki
    • 北海道大学大学院環境科学院 Creative Research Initiative "Sousei" (CRIS), and Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University

抄録

Semiconductor nanoclusters and nanoparticles of cadmium chalcogenides have attracted special attention due to their unique optical properties. We particularly take notice of the host-guest chemistry and molecular events at the surface of small clusters and have been exploring unique functions by designing the organic environment around the cluster. In this article we review our recent approaches utilizing molecular clusters with a general formula Cd<SUB>10</SUB>S<SUB>16</SUB>R<SUB>12</SUB> having twelve surface organic groups. Aryl-substituted clusters trapped ammonium cations among the surface aromatics through cation-π interaction, and such an intercalative cation binding caused a notable enhancement of the cluster photoluminescence at -600 nm. A systematic study using a series of substituted-phenyl-capped clusters revealed that the electronic properties of the substituents on the phenyl rings notably affect the cation binding capability as well as the photoluminescence emission energy. It was also found that the cation intercalation promotes the formation ofπ-stacked dimer of the aromatic moiety on the cluster surface. Highly sensitive and selective turn-on photoluminescence response to Cu (I) and Ag(I) in neutral buffer was also achieved by using an oligo(ethyleneglycol)-modified aryl-substituted cluster.

収録刊行物

  • 有機合成化学協会誌 : JOURNAL OF Synthetic Organic Chemistry JAPAN  

    有機合成化学協会誌 : JOURNAL OF Synthetic Organic Chemistry JAPAN 66(3), 239-248, 2008-03-01 

    The Society of Synthetic Organic Chemistry, Japan

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各種コード

  • NII論文ID(NAID)
    10021174316
  • NII書誌ID(NCID)
    AN0024521X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00379980
  • NDL 記事登録ID
    9415418
  • NDL 雑誌分類
    ZP11(科学技術--化学・化学工業--有機化学・有機化学工業)
  • NDL 請求記号
    Z17-256
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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