Dyes and Pigments, volume 184, pages 108773

Photoprocesses in bis(18-crown-6)-1,3-distyrylbenzene and its complexes with metal perchlorates

Vatsadze Sergey Z.
Nuriev Vyacheslav N 2
Medvedko Alexey V 2
Freidzon Alexandra Ya
Freidzon Alexandra Ya. 3, 4
Chibisov Alexander K. 1
Fomina Marina V. 5, 6
Publication typeJournal Article
Publication date2021-01-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor4.5
ISSN01437208, 18733743
General Chemical Engineering
Process Chemistry and Technology
Abstract
Abstract Photoprocesses of bis(18-crown-6)-1,3-distyrylbenzene (DSB) and its complexes with barium and lead perchlorates in a MeCN–CH2Cl2 (9:1, v/v) mixture were studied by absorption, luminescence, and laser kinetic spectroscopies. Unlike its strongly conjugated 1,4-isomer, 1,3-derivative shows almost independent behavior of its chromophoric subunits and is capable of phototransformations not observed in 1,4-distyrylbenzenes. Triplet DSB complexes are involved in the radiationless deactivation of the excited state along with the fluorescence processes. The most effective intersystem crossing was observed for the complex with lead perchlorate. The process is accompanied by a drastic decrease in the quantum yield of DSB fluorescence. Quantum chemistry (DFT and TDDFT) is used to calculate the geometric structure and absorption spectra of DSB and its complexes with barium and lead cations and to explain the observed results.

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Atabekyan L. S. et al. Photoprocesses in bis(18-crown-6)-1,3-distyrylbenzene and its complexes with metal perchlorates // Dyes and Pigments. 2021. Vol. 184. p. 108773.
GOST all authors (up to 50) Copy
Atabekyan L. S., Freidzon A. Ya., Chibisov A. N., Gromov S. P., Vatsadze S. Z., Nuriev V. N., Medvedko A. V., Freidzon A. Y., Chibisov A. K., Fomina M. V., Vatsadze S. Z. Photoprocesses in bis(18-crown-6)-1,3-distyrylbenzene and its complexes with metal perchlorates // Dyes and Pigments. 2021. Vol. 184. p. 108773.
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TY - JOUR
DO - 10.1016/j.dyepig.2020.108773
UR - https://doi.org/10.1016%2Fj.dyepig.2020.108773
TI - Photoprocesses in bis(18-crown-6)-1,3-distyrylbenzene and its complexes with metal perchlorates
T2 - Dyes and Pigments
AU - Atabekyan, Levon S
AU - Freidzon, Alexandra Ya
AU - Chibisov, Andrey N.
AU - Gromov, Sergey P
AU - Vatsadze, Sergey Z.
AU - Nuriev, Vyacheslav N
AU - Medvedko, Alexey V
AU - Freidzon, Alexandra Ya.
AU - Chibisov, Alexander K.
AU - Fomina, Marina V.
AU - Vatsadze, Sergey Z.
PY - 2021
DA - 2021/01/01 00:00:00
PB - Elsevier
SP - 108773
VL - 184
SN - 0143-7208
SN - 1873-3743
ER -
BibTex
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@article{2021_Atabekyan
author = {Levon S Atabekyan and Alexandra Ya Freidzon and Andrey N. Chibisov and Sergey P Gromov and Sergey Z. Vatsadze and Vyacheslav N Nuriev and Alexey V Medvedko and Alexandra Ya. Freidzon and Alexander K. Chibisov and Marina V. Fomina and Sergey Z. Vatsadze},
title = {Photoprocesses in bis(18-crown-6)-1,3-distyrylbenzene and its complexes with metal perchlorates},
journal = {Dyes and Pigments},
year = {2021},
volume = {184},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016%2Fj.dyepig.2020.108773},
pages = {108773},
doi = {10.1016/j.dyepig.2020.108773}
}
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