| 以芳香硫醚为桥链的三体化合物的荧光分子开关性能 |
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| 引用本文： | 吴永忠,张镇平,田禾.以芳香硫醚为桥链的三体化合物的荧光分子开关性能[J].影像科学与光化学,1999,17(2). |
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| 作者姓名： | 吴永忠 张镇平 田禾 |
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| 作者单位： | 1. 华东理工大学精细化工研究所,上海,200237
2. 台湾辅仁大学化学系,台北新庄 |
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| 摘 要： | 将一些发色团分子组装成具有特定功能的分子器件,是近年来随超分子化学和分子信息科学兴起而十分活跃的领域［１］,其中具有逻辑功能的光控开关器件是下一代分子计算机的核心,它们可在分子水平实现信息的存储和数据的处理、传输［２］．国内外这方面的研究主要有顺反异...
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| 关 键 词： | 三体化合物 分子开关 荧光 |
FLUORESCENCE SWITCH PROPERTIES OF TRIADS WITH SULFUR BRIDGE |
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| WU Yongzhong,ZHANG Zhenping,TIAN He.FLUORESCENCE SWITCH PROPERTIES OF TRIADS WITH SULFUR BRIDGE[J].Imaging Science and Photochemistry,1999,17(2). |
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| Authors: | WU Yongzhong ZHANG Zhenping TIAN He |
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| Abstract: | Several DonorBridgeAcceptor" triad compounds were synthesized, in which aromatic sulfur
compounds (such as disulfide, 9Hthioxanthen9one and thianthrene) were used as bridge". The
fluorescence lifetimes of these triads in various solvents were measured by singlephoton
counting technique in this paper. Intramolecular Charge Transfer ( ICT ) between donor and
acceptor will be inhibited ( off" state ) with the rapid formation of sulfur radicals by photolysis.
The characteristic longer wavelength emission of intramolecular exciplex in these triads was
quenched. As the sulfur radicals recovered rapidly, ICT between donor and acceptor return to
on" state equally rapidly. |
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| Keywords: | triad compound molecular switch fluorescence |
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