影像科学与光化学 ›› 1996, Vol. 14 ›› Issue (3): 207-211.DOI: 10.7517/j.issn.1674-0475.1996.03.207

• 研究论文 • 上一篇    下一篇

激发态光物理的拓扑控制:对(N,N'-二正癸基)氨基苯甲腈的簇集与光诱导分子内电荷转移

江云宝   

  1. 厦门大学化学系, 国家教委材料和生命过程分析科学开放研究实验室, 厦门361005
  • 收稿日期:1995-10-23 修回日期:1996-02-05 出版日期:1996-08-20 发布日期:1996-08-20
  • 基金资助:
    国家自然科学基金

TOPOLOGICAL CONTROL OF EXCITED-STATED PHOTOPHYSICS:AGGREGATION OF p-(N,N’-DIDECYLAMINO)BENZONITRILE AND PHOTOINDUCED INTRAMOLECULAR CHARGE TRANSFER

JIANG Yunbao   

  1. Department of Chemistry and Research Laboratory of SEDC for Material and Life Chemistry, Xiamen University, Xiamen 361005, P.R. China
  • Received:1995-10-23 Revised:1996-02-05 Online:1996-08-20 Published:1996-08-20

摘要: 在水-二氧六环混合介质中,对二正癸基氨基苯甲腈(DDABN)分子,在水的体积分数超过0.5后,发生簇集并可观察到双重荧光发射且长波长发射带位置与在纯二氧六环中相近。该发射带被证实系分子内扭转电荷转移(TICT)带。吸收光谱表明DDABN簇集体为J-型。

关键词: 簇集, 分子内电荷转移, 对-(N,N′-二正癸基)氨基苯甲腈, 双重荧光

Abstract: p-N,N’-dimethylaminobenzonitrile(DDABN)molecules aggregate in water-dioxane mixture when the volume fraction of water is higher than 0.5 and a dual fluorescence emission is observed from DDABN aggregates.The position of the long-wavelength band is nearly the same as that of DDABN monomer in pure dioxane and this emission band is demonstrated to be due to TICT state. The DDABN molecules are shown by absorption spectroscopy to form J-aggregates in water-rich water-dioxane mixture.

Key words: aggregation, intramolecular charge transfer, p-(N,N’-didecylamino)benzonitrile, dual fluorescence