An organic white light-emitting fluorophore.
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.
Yang
Youjun
Y
Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA.
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
D002460:Cell Line; D005456:Fluorescent Dyes / Q000737:chemistry* / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008027:Light; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
D005456:Fluorescent Dyes