高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1533.

• 研究简报 • 上一篇    下一篇

水溶性杯[4]芳烃衍生物与稀土铽[Ⅲ]离子形成配合物的荧光行为

张宁, 赵邦屯, 刘育   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:2001-07-04 出版日期:2002-08-24 发布日期:2002-08-24
  • 通讯作者: yuliu@public.tpt.tjcn
  • 作者简介:刘育(1954年出生),男,博士,教授,博士生导师,主要从事超分子化学研究.E-mail:yuliu@public.tpt.tjcn
  • 基金资助:

    国家自然科学基金(批准号:29992590-829972029)资助

Luminescence Behavior on the Formation Complex of Water Soluble Calixarene Derivative with Earth Terbium(Ⅲ) Ion

ZHANG Ning, ZHAO Bang-Tun, LIU Yu   

  1. Department of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2001-07-04 Online:2002-08-24 Published:2002-08-24

关键词: 水溶性杯芳烃, Tb3+配合物, 能量传递, 荧光特性

Abstract: The luminescent behavior on formation 1:1 complex of 25, 26, 27, 28 tetra carboxylic acid 5, 11, 17, 23 calixarenesulfonate(L2) and terbium(Ⅲ) ion was investigated by means of fluorescence spectra. The results showed that the pHvalue of the solution had obviousan influence on the fluorescence intensity of L2·Tb3+ complex, but the fluorescence intensity was hardly changed over the pHrange from 6 to 11. The complex exhibits a higher emission quantum yield (φ =0.31) in aqueous solution, which indicates energy transfer type emission. The complexation behavior of L2 with trivalent lanthanoid ions(Tb3+ and Eu3+) was also studied in aqueous boracic acid(hydrochloric acid buffer solution(pH8.0) at 25 ℃ by UV-Vis and fluorescence measurements. The spectrophotometric titrations have been performed to give the complex stability constants (KS) for the stoichiometric 1:1 inclusion complexation of L2 with Tb3+ and Eu3+. The complex stability for L2·Eu3+ was higher than that for L2·Tb3+, but no characteristic fluorescence was found.

Key words: Water soluble calixarene, Terbium complex, Energy transfer, Fluorescence property

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