Synthesis and Optical Properties of 6-Substituted-β-cyclodextrin Derivatives

Author(s): Ruiyun Guo, Mahuya Bagui, Yongge Wei, Zhonghua Peng.

Journal Name: Letters in Organic Chemistry

Volume 6 , Issue 8 , 2009

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β-Cyclodextrin derivatives with varying lengths of π-conjugated arms have been synthesized. Their structures have been confirmed by 1H NMR, elemental analysis, mass spectrometry and X-ray crystal structure determination. Their self-inclusion properties are evaluated using Circular Dichroism, 1D and 2D 1H NMR measurements. It is found that, when the length of the π-conjugated arm is extended from 4 to 5 and to 6, the self-inclusion of the π-conjugated arm to the CD ring is enhanced. The effect of the self-inclusion on the optical properties of the CD-linked π-conjugated systems has been explored. Stronger inclusion leads to enhanced excitation-energy transfer.

Keywords: β-cyclodextrin, inclusion complex, π-conjugation, excitation energy transfer

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Article Details

Year: 2009
Page: [604 - 612]
Pages: 9
DOI: 10.2174/157017809790442899
Price: $58

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