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Acta Phys. -Chim. Sin.  1999, Vol. 15 Issue (09): 856-859    DOI: 10.3866/PKU.WHXB19990916
Note     
Circular Dichroism and Molecular Conformation of Cyclodextrins Bearing Benzoyl Moiety
Zhang Yan-Ling, Gao Xing-Ming, Tong Lin-Hui, Ma Xue-Yi
Department of Chemistry,Lanzhou University,Lanzhou 730000|Department of Chemistry,Peking University,Beijing 100871|Lanzhou Institute of Chenical Physics,Chinese Academy of Science,Lanzhou 730000
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Abstract  

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-o-benzoyl)-γ-CD (2) was increased by adding of guests. The benzoyl moiety of 1 was extruded outside from the cavity of β-CD by guests, while the benzoyl moiety of 2 was included together with guests in the cavity of γ-CD.



Key wordsBenzoated cyclodextrins      Circular dichroism      Host conformation      Supramolecular chemistry     
Received: 03 November 1998      Published: 15 September 1999
Corresponding Authors: Ma Xue-Yi   
Cite this article:

Zhang Yan-Ling, Gao Xing-Ming, Tong Lin-Hui, Ma Xue-Yi. Circular Dichroism and Molecular Conformation of Cyclodextrins Bearing Benzoyl Moiety. Acta Phys. -Chim. Sin., 1999, 15(09): 856-859.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB19990916     OR     http://www.whxb.pku.edu.cn/Y1999/V15/I09/856

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