有机化学 ›› 1990, Vol. 10 ›› Issue (5): 432-435. 上一篇    下一篇

研究论文

酚酞作为探针研究水溶液中β-环糊精与低分子脂肪醇的互相作用

童林荟;刘育   

  1. 中国科学院兰州化学物理研究所
  • 发布日期:1990-10-25

Study on the interaction between β-cyclodextrin and low molecular aliphatic alcohol in aqueous solution with phenolphthatein as probe

TONG LINHUI;LIU YU   

  • Published:1990-10-25

本文报道在强碱性水溶液(PH=10)中用酚酞双阴离子作为控针, 研究低分子脂肪醇对β-环糊精的竞争结合。

关键词: 紫外分光光度法, 探针, 水溶液, 酚酞, 热力学性质, 环糊精, 元素分析, 疏水性质, 竟争反应, 脂肪族醇

It has been proved that in alkaline solution the three Ph groups of phenolphthalein (PP2-) have different polarity and the formation of the complex b-CD-PP2- had 1:1 stoichiometry. The cavity in b-CD was studied by using PP2- as probe. The binding constant of b-CD with aliphatic alcohol was determine by competitive inclusion method. The experimental results indicated that the cavity is an enzyme-like hydrophobic microenvironment.

Key words: AQUEOUS SOLUTION, ULTRAVIOLET SPECTROPHOTOMETRY, THERMODYNAMIC PROPERTIES, PROBES, PHENOLPHTHALEINUM, CYCLODEXTRIN, ELEMENTAL ANALYSIS, HYDROPHOBIC PROPERTIES, ALIPHATIC ALCOHOLS

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