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Stabilisation of a heptamethine cyanine dye by rotaxane encapsulation.

Authors :
C. M. Simon Yau
Sofia I. Pascu
Susan A. Odom
John E. Warren
Eric J. F. Klotz
Michael J. Frampton
Charlotte C. Williams
Veaceslav Coropceanu
Marina K. Kuimova
David Phillips
Stephen Barlow
Jean-Luc Brédas
Seth R. Marder
Val Millar
Harry L. Anderson
Source :
Chemical Communications; Jun2008, Vol. 2008 Issue 25, p2897-2899, 3p
Publication Year :
2008

Abstract

The crystal structure of a cyanine dye rotaxane shows that the cyclodextrin is tightly threaded round the polymethine bridge of the dye; encapsulation dramatically increases the kinetic chemical stability of the radicals formed on oxidation and reduction of the dye, making it possible to observe the rotaxane radical dication by ESR and UV-vis-NIR spectroscopy. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13597345
Volume :
2008
Issue :
25
Database :
Complementary Index
Journal :
Chemical Communications
Publication Type :
Academic Journal
Accession number :
33049781
Full Text :
https://doi.org/10.1039/b802728e