High Energy Chemistry, volume 54, issue 3, pages 170-174
A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol
Publication type: Journal Article
Publication date: 2020-05-31
Journal:
High Energy Chemistry
Quartile SCImago
Q3
Quartile WOS
Q4
Impact factor: 0.7
ISSN: 00181439, 16083148
Physical and Theoretical Chemistry
Abstract
Abstract Photoprocesses in 3,3'-diethyl-5,5'-dichlorothiacarbocyanine have been studied in the cases of direct and sensitized photoexcitation in methanol and water in the absence and in the presence of cucurbit[7]uril. Under laser pulse excitation, trans–cis isomerization occurring via the excited singlet state of the dye (S*) takes place preferentially. The population of the dye triplet T state increases in the sensitized excitation as a result of triplet–triplet energy transfer from a triplet energy donor (anthracene and anthracenecarboxylic acid) to the dye (acceptor). Deactivation of the molecules in the T state occurs via electron transfer and back Т→S* intersystem crossing. The S* state formed in the Т→S* process decays via both conventional and delayed fluorescence. The presence of cucurbit[7]uril in the dye aqueous solution does not affect the mechanism of the photoprocesses in the dye, but it facilitates dimerization and increase in the yield into the T state, mainly of the dimers, and increases the lifetime of the dye cis-isomers.
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Fedotova T. V. et al. A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol // High Energy Chemistry. 2020. Vol. 54. No. 3. pp. 170-174.
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Fedotova T. V., Zakharova G. V., Gutrov V. N., Markelov V. P., Svyatoslavskaya T. A., Svyatoslavskii N. L., Chibisov A., Sazonov S. K., Gromov S. P. A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol // High Energy Chemistry. 2020. Vol. 54. No. 3. pp. 170-174.
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TY - JOUR
DO - 10.1134/S0018143920030042
UR - https://doi.org/10.1134%2FS0018143920030042
TI - A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol
T2 - High Energy Chemistry
AU - Fedotova, T V
AU - Zakharova, G V
AU - Gutrov, V N
AU - Markelov, V P
AU - Svyatoslavskaya, T A
AU - Svyatoslavskii, N L
AU - Chibisov, A.K.
AU - Sazonov, S K
AU - Gromov, S P
PY - 2020
DA - 2020/05/31 00:00:00
PB - Pleiades Publishing
SP - 170-174
IS - 3
VL - 54
SN - 0018-1439
SN - 1608-3148
ER -
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@article{2020_Fedotova,
author = {T V Fedotova and G V Zakharova and V N Gutrov and V P Markelov and T A Svyatoslavskaya and N L Svyatoslavskii and A.K. Chibisov and S K Sazonov and S P Gromov},
title = {A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol},
journal = {High Energy Chemistry},
year = {2020},
volume = {54},
publisher = {Pleiades Publishing},
month = {may},
url = {https://doi.org/10.1134%2FS0018143920030042},
number = {3},
pages = {170--174},
doi = {10.1134/S0018143920030042}
}
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Fedotova, T. V., et al. “A Study of Photoprocesses of 3,3'-Diethyl-5,5'-Dichlorothiacarbocyanine in Water and Methanol.” High Energy Chemistry, vol. 54, no. 3, May. 2020, pp. 170-174. https://doi.org/10.1134%2FS0018143920030042.
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