| 香豆素酮染料光谱性质的研究 |
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| 引用本文： | 高放,杨永源.香豆素酮染料光谱性质的研究[J].物理化学学报,1999,15(6):550-554. |
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| 作者姓名： | 高放 杨永源 |
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| 作者单位： | Institute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101 |
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| 基金项目： | 国家自然科学基金!59773011，中科院感光化学研究所光化学开放实验室资助 |
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| 摘 要： | 近年来，许多具有“推一拉”电子结构的分子内电行转移激光染料的光谱性质的研究引起人们极大的关注1-5]．研究染料在不同条件下光物理性质行为不仅具有重要的理论意义，而且使激光染料能有效地应用于光功能材料．香豆素酮染料作为一种重要的激光染料，已经在光聚合、光固化等领域中得到广泛应用6,7]．在这类化合物中不同位置的取代对其光物理性质的研究已有报导8，9]，但香豆素酮染料在不同的非质子传递溶剂中的光物理行为的研究至今未见报导．鉴于以前关于香豆素染料文献报导常涉及到用醇、水等质子传递溶剂，为了避免溶剂与溶质间的氢…
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| 关 键 词： | 分质子传递溶剂效应 香豆素酮染料 光谱 荧光量子产率 |
| 收稿时间： | 1998-07-02 |
| 修稿时间： | 1998-09-14 |
Spectra Studies of Ketocoumarin Dye |
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| Gao Fang,Yang Yongyuan.Spectra Studies of Ketocoumarin Dye[J].Acta Physico-Chimica Sinica,1999,15(6):550-554. |
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| Authors: | Gao Fang Yang Yongyuan |
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| Institution: | Institute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101 |
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| Abstract: | Ketocoumarin dye 3-acetyl-7-diethylaminecoumrin was synthesized and charater ized. The spectra and photophysics behavior were studied in different aprotic solvents. Results showed that the fluorescence quantum yield had a maximum and the ratio of non-radiative transition rate to radiative transition rate had a minimum with the increasing of the solvent polarity. Also, the fluorescence of the dye can be quenched by triethylamine and the change is in accordance with the Stern-Volmer formula. These phenomenon was discussed preliminarily. |
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| Keywords: | Aprotic solvent effect Ketocoumarin dye Spectrum Fluorescence quantum yield |
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