Excimer emission and energy transfer in cofacial boradiazaindacene (BODIPY) dimers built on a xanthene scaffold

Using a rigid xanthene scaffold, a series of boradiazaindacene derivatives were synthesized. In some of these compounds, two boradiazaindacene derivatives were placed cofacially, resulting in significant inter-chromophoric interactions, including excimer emission. A simple modification of boradiazai...

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Bibliographic Details
Published in:Tetrahedron 2006-03, Vol.62 (11), p.2721-2725
Main Authors: Saki, Neslihan, Dinc, Tarik, Akkaya, Engin U.
Format: Article
Language:English
Subjects:
BODIPY dyes
Energy transfer
Molecular switches
Multichromophoric systems
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Summary:Using a rigid xanthene scaffold, a series of boradiazaindacene derivatives were synthesized. In some of these compounds, two boradiazaindacene derivatives were placed cofacially, resulting in significant inter-chromophoric interactions, including excimer emission. A simple modification of boradiazaindacene structure leads to formation of an ICT dye, which has distinct spectral properties. Energy transfer between two BODIPY dyes was demonstrated as well. In addition, the spectral properties of ICT dye can be modulated by the addition of the acid leading to an acid switchable energy transfer cassette. Graphical Abstract
ISSN:0040-4020
1464-5416
DOI:10.1016/j.tet.2005.12.021