4.7 Article

Stabilisation of a heptamethine cyanine dye by rotaxane encapsulation

Journal

CHEMICAL COMMUNICATIONS
Volume -, Issue 25, Pages 2897-2899

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/b802728e

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Funding

  1. Engineering and Physical Sciences Research Council [GR/S97743/01] Funding Source: researchfish

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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.

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