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Synfacts 2009(12): 1349-1349  
DOI: 10.1055/s-0029-1218193
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Large Shifts from Proton Transfer

Contributor(s): Timothy M. Swager
K. Takagi*, K. Sugihara, T. Isomura
Nagoya Institute of Technology, Japan
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Publikationsdatum:
20. November 2009 (online)

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Significance

In a number of current and emerging fluorescence applications it is desirable to create systems capable of having a large Stokes shift between the absorption and emission. One of the main interests is to create concentrated chromo­phoric systems that will not reabsorb their own emission, which leads to lower efficiencies in the bulk emission. The demethylated materials synthesized undergo ESIPT and display 145 nm Stokes shifts.