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An organic white light-emitting fluorophore.

ABSTRACT: The synthesis of new benzo[a]- and [b]xanthene dye frameworks is described. A unique benzo[a]xanthene, seminaphtho[a]fluorone (SNAFR-1), is studied in a variety of media. The optimization of solution parameters and excitation wavelengths allows SNAFR-1 to display red, green, and blue emission bands of approximately equal intensities and also to produce white light. Ratiometric red (anion) and green (neutral) emissions are observed upon varying solution pH. A pH-independent violet-blue emission band is due to the addition of nucleophiles to the benzylic carbon of SNAFR-1.

SUBMITTER: Yang Y

PROVIDER: S-EPMC2662356 | biostudies-literature | 2006 Nov

REPOSITORIES: biostudies-literature

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An organic white light-emitting fluorophore.

Yang Youjun Y Lowry Mark M Schowalter Corin M CM Fakayode Sayo O SO Escobedo Jorge O JO Xu Xiangyang X Zhang Huating H Jensen Timothy J TJ Fronczek Frank R FR Warner Isiah M IM Strongin Robert M RM

Journal of the American Chemical Society 20061101 43

The synthesis of new benzo[a]- and [b]xanthene dye frameworks is described. A unique benzo[a]xanthene, seminaphtho[a]fluorone (SNAFR-1), is studied in a variety of media. The optimization of solution parameters and excitation wavelengths allows SNAFR-1 to display red, green, and blue emission bands of approximately equal intensities and also to produce white light. Ratiometric red (anion) and green (neutral) emissions are observed upon varying solution pH. A pH-independent violet-blue emission b ...[more]

PMID: 17061891

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