Dynamics of complexation of flavone and chromone to beta-cyclodextrin

Authors
Christoff, M Okano, LT Bohne, C
Citation
M. Christoff et al., Dynamics of complexation of flavone and chromone to beta-cyclodextrin, J PHOTOCH A, 134(3), 2000, pp. 169-176
Citations number
39
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
ISSN journal
10106030 → ACNP
Volume
134
Issue
3
Year of publication
2000
Pages
169 - 176
Database
ISI
SICI code
1010-6030(20000614)134:3<169:DOCOFA>2.0.ZU;2-X
Abstract
The complexation dynamics of the excited tripler states of flavone and chro mone with beta-cyclodextrin was studied by laser flash photolysis. The exit and entry rate constants for the triplet states of these ketones were dete rmined using Cu2+ and NO2- as quenchers. The entry and exit rate constants depend on the size of the guest molecule and were faster for chromone than for flavone. (C) 2000 Elsevier Science S.A. All rights reserved.