| 多环芳烃芴、苊的无保护流体室温磷光性质研究 |
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| 引用本文： | 李隆弟,牟兰,陈小康.多环芳烃芴、苊的无保护流体室温磷光性质研究[J].高等学校化学学报,2000,21(7):1040-1042. |
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| 作者姓名： | 李隆弟 牟兰 陈小康 |
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| 作者单位： | 1. 清华大学化学系, 北京 100084;
2. 贵州大学化学系, 贵阳 550025;
3. 韶关大学化学系, 韶关 512005 |
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| 基金项目： | 国家自然基金!(批准号 :2 97750 13)资助 |
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| 摘 要： | 我们1,2 ]曾报道丹磺酰氯及其衍生物在无保护性介质亦无有机溶剂存在的水溶液中能诱导出强而稳定的室温磷光 (ＲＴＰ) ,并命名为ＮＰ ＲＴＰ37].此后 ,Ｃａｒｒｅｔｅｒｏ等810 ]亦发现了萘唑啉、萘氧乙酸和苊溶液在无任何有序介质时的ＲＴＰ发射现象 .在已有的研究中至少有两个问题需进一步探索 :其一 ,除苊外 ,已实现ＮＰ ＲＴＰ发射的化合物都仅具双环结构 ,即萘系化合物 ,对于多环化合物是否有类似的发射特性和随环的增多是否会出现新的特性 ;其二 ,对于无水溶性取代基的多环芳烃 ,因其在水中的溶解度很小 ,所引入的有机溶剂的种类和…
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| 关 键 词： | 无保护流体室温磷光 芴 苊 有机溶剂的影响 |
| 收稿时间： | 1999-09-02 |
Studies on Non-protected Fluid Room Temperature Phosphorescence of Polycyclic Aromatic Hydrocarbon of Fluoren and Acenaphthene |
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| LI Long-Di,MOU Lan,CHEN Xiao-Kang.Studies on Non-protected Fluid Room Temperature Phosphorescence of Polycyclic Aromatic Hydrocarbon of Fluoren and Acenaphthene[J].Chemical Research In Chinese Universities,2000,21(7):1040-1042. |
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| Authors: | LI Long-Di MOU Lan CHEN Xiao-Kang |
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| Institution: | 1. Department of Chemistry, Tsinghua University, Beijing 100084, China;
2. Department of Chemistry, Guizhou University, Guiyang 550025, China;
3. Department of Chemistry, Shaoguan University, Shaoguan 512005, China |
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| Abstract: | Astrong and stable room temperature phosphorescence(RTP) signal of fluoren(Flu), acenaphthene(Ace) aqueous solution can be induced only by using Na 2SO3 as oxygen scavenger and KIas heavy atom perturber. The maximum phosphorescence intensity wavelengths are λex/λem=285/467, 286/493, 520 nm. The RTPintensity is very sensitive to the kind and amount of organic solvent added to the system. For a Flu(or Ace)/KI/Na 2SO3 aqueous solution system containing 1.0% acetonitrile, the RTPintensity is linear to Flu(or Ace) concentration in the range of 8.0×10-7 8.0×10-6 mol/Land 8.0×10-6 4.0×10-5 mol/Lor 8.0×10-7 2.8×10-6 mol/Land 2.8×10-6 4.0×10-5 mol/L. The calculated detection limit by methodology of IUPACbased on three times the standard deviation of background is 8.6×10-8 , 9.0×10-8 mol/Lrespectively. The relative standard deviation( n =7) is 2.4% or 3.5% for the system containing 1.2×10-5 mol/Lof Flu or Ace. The present work shows again that a protective medium is not necessary condition for the fluid RTPemission. |
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| Keywords: | Non protected fluid room temperature phosphorescence Fluoren Acenaphthene Effects of organic solvents |
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