Journal of Photochemistry and Photobiology A: Chemistry, volume 349, pages 197-206

Enhance the fluorescence and singlet oxygen generation ability of BODIPY: Modification on the meso-phenyl unit with electron withdrawing groups

Publication typeJournal Article
Publication date2017-12-01
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor4.3
ISSN10106030, 18732666
General Chemistry
General Chemical Engineering
General Physics and Astronomy
Abstract
Herein, meso -R-carboxyphenyl substituted BODIPY compounds were synthesized and characterized (R = CH 3 , COOH, NO 2 , H and Br 4 ). The fluorescence, excited triplet state and singlet oxygen formation properties for these compounds were measured in nonpolar and polar solvents by UV–vis absorption, steady-state and time-resolved fluorescence methods, as well as laser flash photolysis technique. These BODIPYs exhibit very different fluorescence quantum yield and lifetime value, as well as singlet oxygen formation capability in polar solvents. In contrast, these compounds show very similar spectral shape and position, emit bright green fluorescence in non polar solvents. The introduction of an ortho -COOH on the benzene unit leads to a 20-fold increase in the fluorescence quantum yield. The further introduction of an electron withdrawing NO 2 or COOH on the phenyl makes the BODIPY dye show much higher capability to generate singlet oxygen (up to 5-fold increase) and causes a sharp decrease in both fluorescence quantum yield and lifetime value. The increase in solvent polarity enhances singlet oxygen generation and intramolecular fluorescence quenching. The results are explained by the presence of intramolecular photoinduced electron/charge transfer from BODIPY core to the carboxyphenyl moiety.

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Zhang X. F. et al. Enhance the fluorescence and singlet oxygen generation ability of BODIPY: Modification on the meso-phenyl unit with electron withdrawing groups // Journal of Photochemistry and Photobiology A: Chemistry. 2017. Vol. 349. pp. 197-206.
GOST all authors (up to 50) Copy
Zhang X. F., Zhang Y., Liu C. Enhance the fluorescence and singlet oxygen generation ability of BODIPY: Modification on the meso-phenyl unit with electron withdrawing groups // Journal of Photochemistry and Photobiology A: Chemistry. 2017. Vol. 349. pp. 197-206.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.jphotochem.2017.09.040
UR - https://doi.org/10.1016%2Fj.jphotochem.2017.09.040
TI - Enhance the fluorescence and singlet oxygen generation ability of BODIPY: Modification on the meso-phenyl unit with electron withdrawing groups
T2 - Journal of Photochemistry and Photobiology A: Chemistry
AU - Zhang, Xian Fu
AU - Zhang, Yakui
AU - Liu, Chang
PY - 2017
DA - 2017/12/01 00:00:00
PB - Elsevier
SP - 197-206
VL - 349
SN - 1010-6030
SN - 1873-2666
ER -
BibTex
Cite this
BibTex Copy
@article{2017_Zhang,
author = {Xian Fu Zhang and Yakui Zhang and Chang Liu},
title = {Enhance the fluorescence and singlet oxygen generation ability of BODIPY: Modification on the meso-phenyl unit with electron withdrawing groups},
journal = {Journal of Photochemistry and Photobiology A: Chemistry},
year = {2017},
volume = {349},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016%2Fj.jphotochem.2017.09.040},
pages = {197--206},
doi = {10.1016/j.jphotochem.2017.09.040}
}
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