Modulation of the photophysical properties of multi-BODIPY-siloxane conjugates by varying the number of fluorophores
Alexey A Pakhomov
1, 2
,
Eleonora E Kim
1
,
Dmitriy S Ionov
3
,
Margarita A Maksimova
1, 4
,
Veronika B Khalchenia
1
,
Aziz M. Muzafarov
1, 6
3
4
Publication type: Journal Article
Publication date: 2022-07-01
scimago Q2
wos Q1
SJR: 0.680
CiteScore: 8.5
Impact factor: 4.2
ISSN: 01437208, 18733743
General Chemical Engineering
Process Chemistry and Technology
Abstract
A series of multifluorophore compounds with two, four, six and eight BODIPY residues linked to a siloxane core via a flexible spacer was synthesized. An increasing number of BODIPY units caused an enhanced propensity to chromophore aggregation with characteristic photophysical effects evoked by the aggregation. The increase in the number of fluorophores additionally resulted in considerable increase in molar extinction coefficient . Meanwhile, a slight drop of the extinction coefficient as calculated per a single chromophore was detected. Multifluorophore conjugates showed a significant broadening of fluorescence emission bands in polar solvents and a substantial decrease in the fluorescence quantum yield due to the aggregation-caused quenching. Time resolved fluorescence measurements of multifluorophore compounds in different solvents showed that the fluorescence decays have a multiexponential character and strongly depend on the number of fluorophores in the conjugate, polarity/viscosity of the solvent and the detection wavelength. • A series of BODIPY-siloxane conjugates with 2,4,6, and 8 fluorophores in a single molecule was synthesized. • The dyes showed a pronounced solvatochromic behavior. • A moderate quenching of fluorescence. • Decrease of specific extinction coefficient calculated per a single chromophore. • Fluorescence lifetimes depend on the detection wavelength and solvent.
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1 citation
Shakirova Albina
1 publication
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Pakhomov A. A. et al. Modulation of the photophysical properties of multi-BODIPY-siloxane conjugates by varying the number of fluorophores // Dyes and Pigments. 2022. Vol. 203. p. 110371.
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Pakhomov A. A., Kim E. E., Kononevich Y. N., Ionov D. S., Maksimova M. A., Khalchenia V. B., Maksimov E. G., Anisimov A. A., Shchegolikhina O. I., Martynov V. I., Muzafarov A. M. Modulation of the photophysical properties of multi-BODIPY-siloxane conjugates by varying the number of fluorophores // Dyes and Pigments. 2022. Vol. 203. p. 110371.
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TY - JOUR
DO - 10.1016/j.dyepig.2022.110371
UR - https://doi.org/10.1016/j.dyepig.2022.110371
TI - Modulation of the photophysical properties of multi-BODIPY-siloxane conjugates by varying the number of fluorophores
T2 - Dyes and Pigments
AU - Pakhomov, Alexey A
AU - Kim, Eleonora E
AU - Kononevich, Yuriy N
AU - Ionov, Dmitriy S
AU - Maksimova, Margarita A
AU - Khalchenia, Veronika B
AU - Maksimov, Eugene G.
AU - Anisimov, Anton A.
AU - Shchegolikhina, Olga I.
AU - Martynov, Vladimir I
AU - Muzafarov, Aziz M.
PY - 2022
DA - 2022/07/01
PB - Elsevier
SP - 110371
VL - 203
SN - 0143-7208
SN - 1873-3743
ER -
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@article{2022_Pakhomov,
author = {Alexey A Pakhomov and Eleonora E Kim and Yuriy N Kononevich and Dmitriy S Ionov and Margarita A Maksimova and Veronika B Khalchenia and Eugene G. Maksimov and Anton A. Anisimov and Olga I. Shchegolikhina and Vladimir I Martynov and Aziz M. Muzafarov},
title = {Modulation of the photophysical properties of multi-BODIPY-siloxane conjugates by varying the number of fluorophores},
journal = {Dyes and Pigments},
year = {2022},
volume = {203},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/j.dyepig.2022.110371},
pages = {110371},
doi = {10.1016/j.dyepig.2022.110371}
}