物理化学学报 >> 2000, Vol. 16 >> Issue (03): 248-252.doi: 10.3866/PKU.WHXB20000311

研究简报 上一篇    下一篇

化学修饰环糊精在醇/水混合溶剂中的包结行为

解宏智, 吴世康   

  1. 中国科学院感光化学研究所，北京 100101
  • 收稿日期:1999-05-06 修回日期:1999-07-09 发布日期:2000-03-15
  • 通讯作者: 吴世康

Inclusion Behavior of Chemical Modified β-cyclodextrin in Alcohol/Water Mixed Solvents

Jie Hong-Zhi, Wu Shi-Kang   

  1. Institute of Phyotographic Chemistry,Chinese Academy of Sciences,Beijing 100101
  • Received:1999-05-06 Revised:1999-07-09 Published:2000-03-15
  • Contact: Wu Shi-Kang

PDF

3198

赞

关键词: 化学修饰环糊精, 包结配合物, 荧光光谱, 混合溶剂

Abstract:

A comparative study on the fluorescence behavior of the chemical modified β-cyclodextrin appended a N,N-dimethylamino-chalcone group (DMAC-CD) and the non-modified β-CD mixed with free dimethylamino-chalcone (DMAC+CD) in alcohol/water mixed solvents have been carried out in this work. The fluorescence data obtained——maximum peak wavelength and emission intensity——indicates that the inclusion behavior of the above-mentioned systems is obviously different in mixed alcohol/water solvents. The solvent-induced multi-component complex formation and dissociation and the effect of polarity and size of alcohol used have been also studied carefully by variation of the fluorescence spectroscopic characters. The result indicates that the self-inclusion complex of DMAC-CD has a higher stability in mixed alcohol/water solvents than that in the DMAC +β-CD system. The obtained results and the observed phenomena have been discussed in details.

Key words: Chemical modified cyclodextrin, Inclusion complex, Fluorescence spectrum, Mixed solvect