| α、ω-双香豆素长链化合物激基缔合物的研究 |
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| 引用本文： | 刘天军,吴世康. α、ω-双香豆素长链化合物激基缔合物的研究[J]. 物理化学学报, 1996, 12(8): 677-683. DOI: 10.3866/PKU.WHXB19960802 |
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| 作者姓名： | 刘天军 吴世康 |
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| 作者单位： | Institute of Photographic Chemistry,Academia Sinica,Beijing 100101 |
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| 摘 要： | 通过α、ω－双香豆素长链化合物详细研究了香豆素激基缔合物的荧光行办，通过吸收光谱、荧光光谱和激发光谱，考察了香豆素激基缔合物的发光位置与激发波长，借助单光子技术确定了形成的是分子内的激基缔合物，通过1HNMR谱研究了不同双香豆素长链化合物的构象分布，揭示了在水溶液中由于疏水相互作用促进了长链化合物分子内激基缔合物的形成．
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| 关 键 词： | 香豆素 长链化合物 激基缔合物 |
| 收稿时间： | 1995-10-09 |
| 修稿时间： | 1996-04-30 |
Study on the Excimer Fluorescence Behavior of α、ω-Biscoumarin Long Chain Compounds |
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| Liu Tianjun, Wu Shikang. Study on the Excimer Fluorescence Behavior of α、ω-Biscoumarin Long Chain Compounds[J]. Acta Physico-Chimica Sinica, 1996, 12(8): 677-683. DOI: 10.3866/PKU.WHXB19960802 |
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| Authors: | Liu Tianjun Wu Shikang |
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| Affiliation: | Institute of Photographic Chemistry,Academia Sinica,Beijing 100101 |
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| Abstract: | The fluorescence behavior of coumarin excimer formed form the excited α, ω-biscoumarin long chain compounds in different conditions has been investigated in this paper. The fluorescence spectra show its emission maximum wave-length at 450nm in aqueous solution, and the single photon counting technique indicates its lifetime around 5.0ns. The 1H NMR spectra demonstrate the reason of the excimer formation to be the hydrophobic interaction which enhances the intramolecular aggregation of coumarin located at the terminal of molecule. |
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| Keywords: | Coumarin Long chain compound Excimer |
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