期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 128, 期 43, 页码 14081-14092出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja0632207
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资金
- NIBIB NIH HHS [R01 EB002044-06A1, R15 EB016870, R01 EB 002044, R01 EB002044] Funding Source: Medline
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.
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