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Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (12): 1935.

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Room-temperature Phosphorescence of 1-Bromonaphthalene Induced by Straight-line Alcohols in the Presence of β-Cyclodextrin

DU Xin-Zhen1, ZHANG Yongt2, JIANG Yun-Bao1, LIN Li-Rong1, HUANG Xian-Zhi1, CHEN Guo-Zhen1   

  1. 1. The Research Laboratory of SEDC of Analytical Science for Life and Mate1jal Chemistry, Xiamen University, Xiamen 361005;
    2. Depariment of Chemistry, Research Center of Environmental Sciencet, Xiamen University, Xiamen 361005
  • Received:1996-12-28 Online:1997-12-24 Published:1997-12-24

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Abstract: Room-temperature phosphorescence of 1-bromonaphthalene (1-BrN) induced byaliphatic alcohols(A) was investigated in aqueous aerated g-cyclodextrin(P-CD) solution.Itfollows that 1-BrNphosphorescence intensity initially increases with the increasing numberof the carbon atoms in an alcohol.n-Pentanol exhibits the most pronounced phosphorescenceenhancement, and subsequently the phosphorescence intensity gradually decreases from n-hexanol to n-octanol.The stoichiometry and the equilibrium constants of a ternary complexwere determined.It has been found that the binding of 1-BrNto A : P-CDcomplex is a pre-dominant factor of phosphorescence enhancement.The effect of alcohols on RTPwas ex-plained on the basis of the molecular size.

Key words: 1-Bromonaphthalene, P-Cyclodextrin, Aliphatic alcohols, Inclusion comlplex, Room-temperature phosphorescence

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