Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules

S. V. Gagarskiy; E. P. Grebennikov; V. V. Kiyko; K. S. Levchenko; A. N. Sergeev; Ya Yu Fomicheva; K. Oberhofer; H. Iglev

doi:10.1134/S0030400X18100089

Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules

S. V. Gagarskiy, E. P. Grebennikov, V. V. Kiyko, K. S. Levchenko, A. N. Sergeev, Ya Yu Fomicheva, K. Oberhofer, H. Iglev

Chair of Laser and X-ray Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Abstract: Results of investigation of the phototransformation dynamics of chromone molecules by means of a transient-state spectroscopy are presented. Changes in the spectrum of the optical density of chromone compounds dissolved in toluene in the process of their phototransformation are obtained on a time scale ranging from several hundred femtoseconds to several hundred picoseconds. Relaxation of an induced absorption spectrum is described by a biexponential function with characteristic time constants on the order of several picoseconds and several nanoseconds. A scheme of the phototransformation dynamics of chromone molecules corresponding to the observed dynamics of absorption spectra is proposed.

Original language	English
Pages (from-to)	482-486
Number of pages	5
Journal	Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume	125
Issue number	4
DOIs	https://doi.org/10.1134/S0030400X18100089
State	Published - 1 Oct 2018

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Gagarskiy, S. V., Grebennikov, E. P., Kiyko, V. V., Levchenko, K. S., Sergeev, A. N., Fomicheva, Y. Y., Oberhofer, K., & Iglev, H. (2018). Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules. Optics and Spectroscopy (English translation of Optika i Spektroskopiya), 125(4), 482-486. https://doi.org/10.1134/S0030400X18100089

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abstract = "Abstract: Results of investigation of the phototransformation dynamics of chromone molecules by means of a transient-state spectroscopy are presented. Changes in the spectrum of the optical density of chromone compounds dissolved in toluene in the process of their phototransformation are obtained on a time scale ranging from several hundred femtoseconds to several hundred picoseconds. Relaxation of an induced absorption spectrum is described by a biexponential function with characteristic time constants on the order of several picoseconds and several nanoseconds. A scheme of the phototransformation dynamics of chromone molecules corresponding to the observed dynamics of absorption spectra is proposed.",

author = "Gagarskiy, {S. V.} and Grebennikov, {E. P.} and Kiyko, {V. V.} and Levchenko, {K. S.} and Sergeev, {A. N.} and Fomicheva, {Ya Yu} and K. Oberhofer and H. Iglev",

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doi = "10.1134/S0030400X18100089",

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T1 - Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules

AU - Gagarskiy, S. V.

AU - Grebennikov, E. P.

AU - Kiyko, V. V.

AU - Levchenko, K. S.

AU - Sergeev, A. N.

AU - Fomicheva, Ya Yu

AU - Oberhofer, K.

AU - Iglev, H.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Abstract: Results of investigation of the phototransformation dynamics of chromone molecules by means of a transient-state spectroscopy are presented. Changes in the spectrum of the optical density of chromone compounds dissolved in toluene in the process of their phototransformation are obtained on a time scale ranging from several hundred femtoseconds to several hundred picoseconds. Relaxation of an induced absorption spectrum is described by a biexponential function with characteristic time constants on the order of several picoseconds and several nanoseconds. A scheme of the phototransformation dynamics of chromone molecules corresponding to the observed dynamics of absorption spectra is proposed.

AB - Abstract: Results of investigation of the phototransformation dynamics of chromone molecules by means of a transient-state spectroscopy are presented. Changes in the spectrum of the optical density of chromone compounds dissolved in toluene in the process of their phototransformation are obtained on a time scale ranging from several hundred femtoseconds to several hundred picoseconds. Relaxation of an induced absorption spectrum is described by a biexponential function with characteristic time constants on the order of several picoseconds and several nanoseconds. A scheme of the phototransformation dynamics of chromone molecules corresponding to the observed dynamics of absorption spectra is proposed.

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ER -

Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules

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