β-环糊精和甲酚包结体动态结构及平衡常数的NMR研究  

~1H NMR Studies on the Dynamic Structure and EquilibriumConstant of Inclusion of Cresols by β- Cyclodextrin

作　　者：殷开梁[1] 刘加庚[1] 徐端钧[1] 

机构地区：[1]浙江大学化学系,杭州310027

出　　处：《无机化学学报》2000年第1期147-150,共4页Chinese Journal of Inorganic Chemistry

摘　　要：Inclusion of cresols by β cyclodextrin in DHO has been investigated by 1H NMR spectra. Although chemical shifts of the same proton are different in the cavity of empty and enclosed β cyclodextrin, only a time average peak has been detected for a proton in the spectra. The value of chemical shift corresponds to enclosed degree of cresol by β cyclodextrin. The average structure of inclusion has been determined based on 1H NMR data, it describes dynamic depth of cresol in the cavity of β cyclodextrin.Inclusion of cresols by β cyclodextrin in DHO has been investigated by 1H NMR spectra. Although chemical shifts of the same proton are different in the cavity of empty and enclosed β cyclodextrin, only a time average peak has been detected for a proton in the spectra. The value of chemical shift corresponds to enclosed degree of cresol by β cyclodextrin. The average structure of inclusion has been determined based on 1H NMR data, it describes dynamic depth of cresol in the cavity of β cyclodextrin.

关 键 词：甲酚 NMR 包结平衡 稳定常数 

分 类 号：O636.12[理学—高分子化学] O625.311[理学—化学]