Journal
DYES AND PIGMENTS
Volume 146, Issue -, Pages 438-444Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2017.07.038
Keywords
Aza-BODIPY; NIR; Fluorescent dye; Methylthio; Oxidation
Funding
- NNSFC [21542004]
- Program for Liaoning Excellent Talents in University [LJQ2015087]
- Liaoning BaiQianWan Talents Program [2015-56]
- State Key Laboratory of Fine Chemicals [KF1506]
- Liaoning Province Natural Science Foundation [20170540721]
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A series of new BODIPYs/aza-BODIPYs with a methylthio group Were Herein prepared. Introduction of the electron-donating methylthio substituent into such dyes could reduce the fluorescence quantum yield, red-shift its emission spectra, provide higher extinction coefficients and larger Stokes' shift. Oxidation of the thioether of BODIPY 4 into the corresponding electron -withdrawing sulfoxide by HC10 can restore the quantum yield and blue-shift its emission spectra, and dye 4 was highly sensitive and selective to HCIO. (C) 2017 Elsevier Ltd. All rights reserved.
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