物理化学学报 >> 2008, Vol. 24 >> Issue (08): 1503-1506.doi: 10.3866/PKU.WHXB20080830

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水-甲醇混合体系的超分子复合作用

郑博; 李贺先; 王国昌; 刘琨; 袁伟; 李赫; 梁波   

  1. 南开大学高分子化学研究所, 功能高分子材料教育部重点实验室, 天津 300071
  • 收稿日期:2008-02-27 修回日期:2008-04-18 发布日期:2008-08-06
  • 通讯作者: 王国昌 E-mail:gcwang@nankai.edu.cn

Supramolecular Complexation in Water-Methanol Mixtures

ZHENG Bo; LI He-Xian; WANG Guo-Chang; LIU Kun; YUAN Wei; LI He; LIANG Bo   

  1. Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, P. R. China
  • Received:2008-02-27 Revised:2008-04-18 Published:2008-08-06
  • Contact: WANG Guo-Chang E-mail:gcwang@nankai.edu.cn

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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

关键词: 水-甲醇, 复合结构, 芘, 荧光探针, 氢键

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

Key words: Water-methanol, Complex structure, Pyrene, Fluorescence probe, Hydrogen bond

MSC2000: 

  • O642