Lookup NU author(s): Dr Mohammed Alamiry,
Professor Andrew Benniston,
Dr Jerry Hagon
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A small series of partially alkylated Bodipy dyes were prepared containing F-n-aryl (n = 1,2,3,5) groups at the meso position. The effect of increasing the number of fluorines, and their position in the aryl ring, on the electrochemical and photophysical properties of the dyes is discussed. The highly electron withdrawing pentafluoroaryl group makes reduction of the Bodipy segment especially easy when compared to the basic phenylene derivative. High quantum yields of fluorescence in toluene solution are seen for derivatives with fluorine(s) substituted in the ortho position of the meso aryl group. This effect is also mirrored in the fluorescence lifetimes for the molecules. Pressure dependent fluorescence measurements carried out reveal subtle differences in the behaviour for the series of Bodipy derivatives.
Author(s): Alamiry MAH, Benniston AC, Hagon J, Winstanley TPL, Lemmetyinen H, Tkachenko NV
Publication type: Article
Publication status: Published
Journal: RSC Advances
Print publication date: 27/03/2012
ISSN (electronic): 2046-2069
Publisher: Royal Society of Chemistry
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