Circular dichroism and molecular conformation of cyclodextrins bearing benzoyl moiety

The molecular conformation of cyclodextrins (β CD,γ CD) bearing benzoyl moiety was studied by circular dichroism and 1H NMR.The circular dichroism intensity of mono[6 (benzoyl ethylendiamino)] β CD (1) was reduced by adding of guests.In contrast,the circular dichroism intensity of mono(6...The molecular conformation of cyclodextrins (beta-CD, gamma-CD) bearing benzoyl moiety was studied by circular dichroism and H-1 NMR,The circular dichroism intensity of mono[6-(benzoyl-ethylendiamino)]-beta-CD (1) was reduced by adding of guests, In contrast, the circular dichroism intensity of mono(6-o-benzoyl)-gamma-CD (2) was increased by adding of guests. The benzoyl moiety of 1 was extruded outside from the cavity of beta-CD by guests, while the benzoyl moiety of 2 was included together with guests in the cavity of gamma-CD.SCI(E)中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)109856-8591