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 available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)

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: http://kar.kent.ac.uk/id/eprint/20866 (The current URI for this page, for reference purposes)
  • Depositors only (login required):