Preparation, Characterization and photochemistry of 4,4diacetamidostilbene and its beta-cyclodextrin inclusion complex

Davidson, R. Stephen and Liu, Jian (1993) Preparation, Characterization and photochemistry of 4,4diacetamidostilbene and its beta-cyclodextrin inclusion complex. Journal of Photochemistry and Photobiology a-Chemistry, 76 (1-2). pp. 121-126. ISSN 1010-6030. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Abstract

The inclusion complex of trans-4,4'-diacetamidostilbene (1, DAST) with beta-cyclodextrin (2, DAST-CD) was prepared. The formation of the complex and its photochemical behaviour were investigated using a range of physical methods (H-1 and C-13 nuclear magnetic resonance (NMR) spectroscopy, fluorescence and absorption spectroscopy). The results indicate that a stable 1:1 inclusion complex is produced in the solid state and in methanol and dimethylsulphoxide. The guest molecule is completely encapsulated in the beta-cyclodextrin cavity. No difference in stability was observed between DAST and DAST-CD when the samples were irradiated by UV light in methanol. The photolysis products in dimethylsulphoxide were studied using H-1 NMR spectroscopy; the results indicate that the photolysis products are cis-DAST and 4,4'-diacetamidophenanthrene for DAST-CD, but cis-DAST only for DAST.

Item Type: Article
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: R.F. Xu
Date Deposited: 18 Jul 2009 09:12
Last Modified: 16 May 2014 09:27
Resource URI: https://kar.kent.ac.uk/id/eprint/20866 (The current URI for this page, for reference purposes)
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