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Citation: Zhang Yan-Ling, Gao Xing-Ming, Tong Lin-Hui, Ma Xue-Yi. Circular Dichroism and Molecular Conformation of Cyclodextrins Bearing Benzoyl Moiety[J]. Acta Physico-Chimica Sinica, ;1999, 15(09): 856-859. doi: 10.3866/PKU.WHXB19990916 shu

Circular Dichroism and Molecular Conformation of Cyclodextrins Bearing Benzoyl Moiety

1.
Department of Chemistry,Lanzhou University,Lanzhou 730000

Received Date: 3 November 1998
Available Online: 15 September 1999

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.
- Benzoated cyclodextrins,
- Circular dichroism,
- Host conformation,
- Supramolecular chemistry
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