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Red fluorescent monobenzo-BODIPY dyes: Solvent effects on spectra and efficient fluorescence quenching by quinones and phenols

Paper ID Volume ID Publish Year Pages File Format Full-Text
26489 43955 2015 6 PDF Available
Title
Red fluorescent monobenzo-BODIPY dyes: Solvent effects on spectra and efficient fluorescence quenching by quinones and phenols
Abstract

•Monobenzo-BODIPY dyes emit bright red fluorescence (wavelength >605 nm).•Monobenzo-BODIPY dyes show high fluorescence quantum yields (Φf ≥ 0.60).•Monobenzo-BODIPY dyes have long fluorescence lifetimes (τf ∼ 5 ns).•The fluorescence properties are not remarkably affected by solvent polarity.•Quinones quench their fluorescence with large rate constants (1010 L mol−1 s−1).

The fluorescence properties of five monobenzo-BODIPY compounds were measured in nonpolar and polar solvents by UV–vis absorption, steady-state fluorescence and time-correlated single-photon counting methods. These monobenzo-BODIPY dyes emit bright red fluorescence (wavelength >605 nm) with high fluorescence quantum yields (Φf ≥ 0.60) which are slightly affected by solvent polarity. The fluorescence lifetimes of these BODIPY compounds are also long (τf ∼ 5 ns) and not affected remarkably by solvent polarity. These fluorescence properties make them good fluorescent markers/probes in the red visible region. Quinones can efficiently quench the fluorescence of monobenzo-BODIPYs with the dynamic quenching rate constants in the order of 1010 L mol−1 s−1, suggesting that the BODIPY compounds can act as good electron donors for photoinduced electron transfer in artificial photosynthesis and organic solar cells.

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Keywords
Monobenzo-BODIPY; Fluorescence; Solvent effect; Fluorescence quenching; Electron donor/acceptor
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Red fluorescent monobenzo-BODIPY dyes: Solvent effects on spectra and efficient fluorescence quenching by quinones and phenols
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 297, 15 January 2015, Pages 39–44
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us