高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (4): 466.

• 论文 • 上一篇    下一篇

CTMAB对HPTS荧光光谱的影响及β-CD对其包结作用的研究

李隆弟, 谭玉清   

  1. 清华大学化学系, 100084
  • 收稿日期:1989-11-04 出版日期:1991-04-24 发布日期:1991-04-24
  • 通讯作者: 李隆弟
  • 基金资助:

    国家自然科学基金

Effects of CTMAB on the Fluorescence Spectrum of HPTS and the Inclusion Complexation of β-CD

Li Long-di, Tan Yu-qing   

  1. Department of Chemistry, Tsinghua University, Beijing, 100084
  • Received:1989-11-04 Online:1991-04-24 Published:1991-04-24

摘要: 8-羟基-1,3,6三磺酸芘的钠盐(简称HPTS),亦称HOPSA。我们在研究它在各类表面活性剂和环糊精等溶液中的发光特性时发现,它与阳离子表面活性剂溴化十六烷基三甲基铵(CTMAB)间有明显的相互作用。随CTMAB浓度增加,HPTS荧光光谱512nm处出现峰由猝灭到回升,并伴随着435nm附近新峰的形成,该荧光峰红移并稳定在530nm处。而当在HPTS-CTMAB体系中引入β-CD时,出现与上述变化相对应的逆变化过程。本文对此现象进行了讨论。

关键词: HPTS荧光光谱, CTMAB, &beta, -CD包结作用

Abstract: The fluorescence spectrum of 8-hydroxy-1, 3, 6-pyrenetrisulfonate(HPTS or HOPSA) in the presence of CTMAB or/and β-CD were studied. The results show that the fluorescence spectrum of HPTSis largely changed as the cetyl trimethyl ammonium bromide (CTMAB) gradually is increased. When β-CD is gradually added into the system of HPTS-CTMAB, however, the changes described above were inverted. These changes were discussed based on the comparisons of fluorescence spectra for HPTSin various medium solutions, 1H NMR spectra of HPTSor/and CTMAB solutions and the inclusion complexation between CTMAB and β-CD. We consider that the main reason for above effects is relative to the electric interaction between the anion HPTS and cations of CTMAB and the properties of the micro-environment round HOPSAmolecule.

Key words: Fluorescence spectrum of HPTS, CTMAB,β-CD inclusion complexation

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