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

  • SPECTROSCOPY AND PHYSICS OF ATOMS AND MOLECULES
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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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Authors and Affiliations

  1. ITMO University, 197101, St. Petersburg, Russia

    S. V. Gagarskiy, V. V. Kiyko, A. N. Sergeev & Ya. Yu. Fomicheva

  2. TsNITI Tekhnomash, 121108, Moscow, Russia

    E. P. Grebennikov & K. S. Levchenko

  3. Technical University of Munich, 80333, Munich, Germany

    K. Oberhofer & H. Iglev

Authors
  1. S. V. Gagarskiy
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  2. E. P. Grebennikov
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  3. V. V. Kiyko
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  4. K. S. Levchenko
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  5. A. N. Sergeev
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  6. Ya. Yu. Fomicheva
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  7. K. Oberhofer
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  8. H. Iglev
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Corresponding author

Correspondence to Ya. Yu. Fomicheva.

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Translated by I. Shumai

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Gagarskiy, S.V., Grebennikov, E.P., Kiyko, V.V. et al. Investigation of Transient State and Dynamics of Photochemical Transformations of Chromone Molecules. Opt. Spectrosc. 125, 482–486 (2018). https://doi.org/10.1134/S0030400X18100089

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  • DOI: https://doi.org/10.1134/S0030400X18100089

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