| 水-甲醇混合体系的超分子复合作用 |
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| 引用本文： | 郑博,李贺先,王国昌,刘琨,袁伟,李赫,梁波.水-甲醇混合体系的超分子复合作用[J].物理化学学报,2008,24(8):1503-1506. |
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| 作者姓名： | 郑博 李贺先 王国昌 刘琨 袁伟 李赫 梁波 |
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| 作者单位： | Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China |
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| 基金项目： | 国家自然科学基金
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天津市自然科学基金
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| 摘 要： | 采用芘作为荧光探针研究了全组成范围水-甲醇混合溶剂的复合结构. 结果表明, 芘探针的极性标尺(I1/I3)随体系中甲醇摩尔分数(xm)的增加呈下降趋势, 其下降速度对xm变化范围具有明显依赖性, 而芘荧光相对量子产率的变化曲线在xm=0.18处呈现出一奇异的极大值. 这些结果揭示了在0.18
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| 关 键 词： | 水-甲醇 复合结构 芘 荧光探针 氢键 |
| 收稿时间： | 2008-02-27 |
| 修稿时间： | 2008-04-18 |
Supramolecular Complexation in Water-Methanol Mixtures |
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| ZHENG Bo,LI He-Xian,WANG Guo-Chang,LIU Kun,YUAN Wei,LI He,LIANG Bo.Supramolecular Complexation in Water-Methanol Mixtures[J].Acta Physico-Chimica Sinica,2008,24(8):1503-1506. |
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| Authors: | ZHENG Bo LI He-Xian WANG Guo-Chang LIU Kun YUAN Wei LI He LIANG Bo |
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| Institution: | Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China |
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| Abstract: | The complex structures in the entire composition range of water-methanol mixture were studied by pyrene fluorescence probe. The results showed that the decrease rate of I1/I3, the pyrene scale for solvent polarity, exhibited clear dependence on the mole fraction (xm) range of methanol in the mixture, while the relative quantum yield of pyrene fluorescence showed a remarkable maximum at xm=0.18. These results revealed that in a wide range of 0.18
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| Keywords: | Water-methanol Complex structure Pyrene Fluorescence probe Hydrogen bond |
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