Intramolecular Charge Transfer near a Hydrophobic Surface. 2, 6-p-Toluidinonaphthalene Sulfonate in a Reverse Micelle

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著者

    • Mandal Debabrata NANDAL Debabrata
    • Department of Physical Chemistry, Indian Association for the Cultivation of Science Department of Physical Chemistry, Indian Association for the Cultivation of Science
    • Pal Samir Kumar PAL Samir Kumar
    • Department of Physical Chemistry, Indian Association for the Cultivation of Science Department of Physical Chemistry, Indian Association for the Cultivation of Science
    • Datta Anindya [他] DATTA Anindya
    • Department of Physical Chemistry, Indian Association for the Cultivation of Science Department of Physical Chemistry, Indian Association for the Cultivation of Science
    • BHATTACHARYYA Kankan
    • Department of Physical Chemistry, Indian Association for the Cultivation of Science Department of Physical Chemistry, Indian Association for the Cultivation of Science

抄録

Intramolecular charge transfer (ICT) processes of 2,6-p-toluidinonaphthalene sulfonate (TNS) in the water pool of sodium dioctyl sulfosuccinate (AOT) reverse micelle in heptane, is studied using picosecond emission spectroscopy. It is observed that while in aqueous solutions the lifetime (τf) of TNS is 80 ps, τf increases to 4 ns in the microemulsion with water to AOT ratio, w0=4. With increase in w0 as the water pool swells in size, the lifetime and quantum yield of emission decrease and the rate of the ICT process increases. However, the magnitude of the change (at most ≈70 times at w0=4) in the rate of the ICT process of TNS compared to ordinary water is smaller than the several thousand fold retardation in the solvation dynamics of water in such a water pool relative to bulk water. This is attributed to the fact that while the solvation dynamics in the water pool is governed by the dielectric relaxation, dynamics of the ICT process is controlled by the static polarity of the medium.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry  

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 14(1), 199-202, 1998-02-10 

    社団法人 日本分析化学会

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各種コード

  • NII論文ID(NAID)
    10002414683
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    4406444
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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