Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (08): 1503-1506.doi: 10.3866/PKU.WHXB20080830

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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

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


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