Journal of Physical Chemistry A, volume 120, issue 12, pages 1961-1970
Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling
Bukreev Alexey
1
,
Mikhailov Konstantin
1
,
Shelaev Ivan
1
,
Gostev F.E.
1
,
Polevaya Yuliya
2
,
Umansky Stanislav
1
,
NADTOCHENKO V. A.
1, 3, 4, 5
Publication type: Journal Article
Publication date: 2016-03-17
Journal:
Journal of Physical Chemistry A
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 2.9
ISSN: 10895639, 15205215
Physical and Theoretical Chemistry
Abstract
The synthesis of new zinc porphyrin oligomers linked by a triazole bridge was carried out via "click" reaction. A split in the porphyrin oligomer B-band was observed. It was considered as evidence of exciton-excitonic coupling. The relaxation of excited states in Q-band porphyrin oligomers was studied by the femtosecond laser spectroscopy technique with a 20 fs pump pulse. The transient oscillations of two B-band excitonic peaks have a π-radian shift. For explanation of the coherent oscillation, a theoretical model was developed. The model considered the combination of the exciton-excitonic coupling between porphyrin rings in dimer and weak exciton-vibronic coupling in one porphyrin ring. By varying the values of the structural parameters of porphyrins (the strength values of this couplings and measure of symmetry breaking), we obtained correspondence between the experimental data (phase shift and amplitudes of the spectrum oscillations) and the predictions of the model developed here.
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Bukreev A. et al. Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling // Journal of Physical Chemistry A. 2016. Vol. 120. No. 12. pp. 1961-1970.
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Bukreev A., Mikhailov K., Shelaev I., Gostev F., Polevaya Y., Tyurin V. S., Beletskaya I. P., Umansky S., NADTOCHENKO V. A. Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling // Journal of Physical Chemistry A. 2016. Vol. 120. No. 12. pp. 1961-1970.
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TY - JOUR
DO - 10.1021/acs.jpca.5b11025
UR - https://doi.org/10.1021%2Facs.jpca.5b11025
TI - Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling
T2 - Journal of Physical Chemistry A
AU - Bukreev, Alexey
AU - Mikhailov, Konstantin
AU - Shelaev, Ivan
AU - Polevaya, Yuliya
AU - Umansky, Stanislav
AU - Gostev, F.E.
AU - Tyurin, Vladimir S
AU - Beletskaya, Irina P.
AU - NADTOCHENKO, V. A.
PY - 2016
DA - 2016/03/17 00:00:00
PB - American Chemical Society (ACS)
SP - 1961-1970
IS - 12
VL - 120
SN - 1089-5639
SN - 1520-5215
ER -
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@article{2016_Bukreev,
author = {Alexey Bukreev and Konstantin Mikhailov and Ivan Shelaev and Yuliya Polevaya and Stanislav Umansky and F.E. Gostev and Vladimir S Tyurin and Irina P. Beletskaya and V. A. NADTOCHENKO},
title = {Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling},
journal = {Journal of Physical Chemistry A},
year = {2016},
volume = {120},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021%2Facs.jpca.5b11025},
number = {12},
pages = {1961--1970},
doi = {10.1021/acs.jpca.5b11025}
}
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MLA
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Bukreev, Alexey, et al. “Excitonic Coupling and Femtosecond Relaxation of Zinc Porphyrin Oligomers Linked with Triazole Bridge: Dynamics and Modeling.” Journal of Physical Chemistry A, vol. 120, no. 12, Mar. 2016, pp. 1961-1970. https://doi.org/10.1021%2Facs.jpca.5b11025.