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有机化学
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有机化学 ›› 2008, Vol. 28 ›› Issue (11): 1954-1958. 上一篇    下一篇

研究论文

质子化4,4’-联吡啶盐与二苯并-24-冠-8的包合行为

李江胜*,a ; 凡美莲b ; 范小鹏c; 黄朋勉a ; 陈立功*,c   

  1. (a长沙理工大学化学与生物工程学院 长沙 410076)
    (b湖南大学化学化工学院 长沙 410082)
    (c天津大学化工学院 天津 300072)
  • 收稿日期:2008-04-07 修回日期:2008-05-24 发布日期:2008-11-18
  • 通讯作者: 李江胜

Complexation Behavior of Protonated 4,4’-Bipyridinium Salts with Dibenzo-24-crown-8

LI, Jiang-Sheng*,a; FAN, Mei-Lianb; FAN, Xiao-Pengc ;HUANG, Peng-Miana; CHEN, Li-Gong*,c
  

  1. (a School of Chemical and Biological Engineering, Changsha University of Science and Technology, Changsha 410076)
    (b College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082)
    (c School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072)

  • Received:2008-04-07 Revised:2008-05-24 Published:2008-11-18
  • Contact: LI, Jiang-Sheng

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通过1H NMR, ESI-MS, 紫外-可见光谱等分析手段研究了两个新的质子化联吡啶盐客体与冠醚二苯并-24-冠-8在溶液中和气态下的包合行为. 研究结果表明, 质子化的联吡啶盐与冠醚主要形成1∶1的超分子包合物, 且存在夹心式的几何结构, 双质子化的联吡啶盐比单质子化的联吡啶盐具有更强的结合冠醚的能力, 其缔合常数分别为200, 116 L•mol－1.

关键词: 联吡啶盐, 超分子, 二苯并-24-冠-8, 包合物, 主-客体化学

The complexation behavior of two protonated 4,4’-bipyridinium salts with dibenzo-24-crown-8 in solution and gas state was studied by analysis of 1H NMR, ESI-MS, and UV-Vis spectra. The obtained results show that supramolecular complex compounds with a 1∶1 stoichoimetry are formed, which are sandwiched. The diprotonated salt has a stronger association ability with dibenzo-24-crown-8 than the monoprotonated one, and the association constant is 200 and 116 L•mol－1, respectively.

Key words: dibenzo-24-crown-8, bipyridinium, complex compound, supramolecule, host-guest chemistry