Chin. J. Org. Chem. ›› 2014, Vol. 34 ›› Issue (6): 1183-1189.DOI: 10.6023/cjoc201311022 Previous Articles     Next Articles

Articles

七、八元瓜环与两种含香豆素单元的紫精衍生物的相互作用

崔艳婷, 赵广宽, 王瑞欣, 朱卫国, 邹大鹏   

  1. 郑州大学化学与分子工程学院 河南省化学生物与有机化学重点实验室 郑州 450052
  • 收稿日期:2013-11-13 修回日期:2014-01-02 发布日期:2014-02-12
  • 通讯作者: 朱卫国, 邹大鹏 E-mail:zdp@zzu.edu.cn
  • 基金资助:
    河南省基础与前沿技术研究计划(No. 122300413203)资助项目.

Interaction between Cucurbit[n]uril (n=7, 8) and Two Kinds of Viologen Derivatives Containing Coumarin Unit

Cui Yanting, Zhao Guangkuan, Wang Ruixin, Zhu Weiguo, Zou Dapeng   

  1. Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450052
  • Received:2013-11-13 Revised:2014-01-02 Published:2014-02-12
  • Supported by:
    Project supported by the Basic and Frontier Technology Research Program of Henan Province (No. 122300413203).

Two kinds of viologen derivatives ([XDS-3CMV] and [XDS-6CMV]) containing coumarin unit were synthesized and characterized. Spectroscopic techniques such as 1H NMR, ESI-MS, UV-Vis and fluorescence spectroscopies were used to investigate the interaction between CB[n] (n=7, 8) and guest molecules. The results reveal that each of the two guest binds with cucurbit[n]uril (n=7, 8) to form stable inclusion complexes. The length of the alkyl chain of the guests and the size of cucurbit[n]uril (n=7, 8 ) can affect the binding models of the inclusion complexes. Cucurbit[7]uril primarily binds with the viologen unit of the two guest molecules to form 1:1 inclusion complexes. [XDS-6CMV] prefers to fold back to form a 1:1 U-shaped complex with cucurbit[8]uril. Whereas [XDS-3CMV] prefers to form supramolecular polymer with cucurbit[8]uril.

Key words: cucurbit[n]uril (n=7, 8), viologens, coumarin, inclusion complexes