Excited State Dynamics of CH3CHOO Criegee Intermediates in the Upper Atmosphere of the Earth

Y. A. Dyakov; S. O. Adamson; P. K. Wang; A. S. Vetchinkin; G. V. Golubkov; V. D. Peskov; A. I. Rodionov; A. G. Syromyatnikov; S. Y. Umanskii; D. V. Shestakov; M. G. Golubkov

doi:10.1134/S1990793122030149

Excited State Dynamics of CH₃CHOO Criegee Intermediates in the Upper Atmosphere of the Earth

Y. A. Dyakov, S. O. Adamson, P. K. Wang, A. S. Vetchinkin, G. V. Golubkov, V. D. Peskov, A. I. Rodionov, A. G. Syromyatnikov, S. Y. Umanskii, D. V. Shestakov, M. G. Golubkov

Institute of Civil Aviation

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Abstract

Abstract: Carbonyl oxides, or Criegee intermediates, play an important role in many physicochemical processes occurring in the Earth’s atmosphere. Criegee intermediates are chemically active compounds that easily react with other atmospheric components, promoting the formation of OH and CH₃ radicals, toxic compounds of nitrogen, and various acids. Traditionally, the literature considers reactions involving only those carbonyl oxides that are the most stable in the troposphere under the standard atmospheric conditions. In this study, it is shown that in the mesosphere and ionosphere, where the total concentration of molecules is low and the intensity of UV radiation and the number of free electrons are high, reactions involving electronically excited states of the Criegee intermediates CH₃CHOO play a significant role. In this case, we should take into account the features of the decomposition of all isomers of the CH₃CHOO molecule.

Original language	English
Pages (from-to)	543-548
Number of pages	6
Journal	Russian Journal of Physical Chemistry B
Volume	16
Issue number	3
DOIs	https://doi.org/10.1134/S1990793122030149
Publication status	Published - 2022 Jun

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry

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Dyakov, Y. A., Adamson, S. O., Wang, P. K., Vetchinkin, A. S., Golubkov, G. V., Peskov, V. D., Rodionov, A. I., Syromyatnikov, A. G., Umanskii, S. Y., Shestakov, D. V., & Golubkov, M. G. (2022). Excited State Dynamics of CH₃CHOO Criegee Intermediates in the Upper Atmosphere of the Earth. Russian Journal of Physical Chemistry B, 16(3), 543-548. https://doi.org/10.1134/S1990793122030149

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title = "Excited State Dynamics of CH3CHOO Criegee Intermediates in the Upper Atmosphere of the Earth",

abstract = "Abstract: Carbonyl oxides, or Criegee intermediates, play an important role in many physicochemical processes occurring in the Earth{\textquoteright}s atmosphere. Criegee intermediates are chemically active compounds that easily react with other atmospheric components, promoting the formation of OH and CH3 radicals, toxic compounds of nitrogen, and various acids. Traditionally, the literature considers reactions involving only those carbonyl oxides that are the most stable in the troposphere under the standard atmospheric conditions. In this study, it is shown that in the mesosphere and ionosphere, where the total concentration of molecules is low and the intensity of UV radiation and the number of free electrons are high, reactions involving electronically excited states of the Criegee intermediates CH3CHOO play a significant role. In this case, we should take into account the features of the decomposition of all isomers of the CH3CHOO molecule.",

author = "Dyakov, {Y. A.} and Adamson, {S. O.} and Wang, {P. K.} and Vetchinkin, {A. S.} and Golubkov, {G. V.} and Peskov, {V. D.} and Rodionov, {A. I.} and Syromyatnikov, {A. G.} and Umanskii, {S. Y.} and Shestakov, {D. V.} and Golubkov, {M. G.}",

note = "Funding Information: This study was carried out in the framework of State Assignment of the Ministry of Science and Higher Education of the Russian Federation (registration number 122040500060–4), with the financial support of the Ministry of Science and Technology of Taiwan (MOST grants 109-2111-M-001-001 and 110-2111-M-001-005) and by Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU), Taiwan. Publisher Copyright: {\textcopyright} 2022, Pleiades Publishing, Ltd.",

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AU - Dyakov, Y. A.

AU - Adamson, S. O.

AU - Wang, P. K.

AU - Vetchinkin, A. S.

AU - Golubkov, G. V.

AU - Peskov, V. D.

AU - Rodionov, A. I.

AU - Syromyatnikov, A. G.

AU - Umanskii, S. Y.

AU - Shestakov, D. V.

AU - Golubkov, M. G.

N1 - Funding Information: This study was carried out in the framework of State Assignment of the Ministry of Science and Higher Education of the Russian Federation (registration number 122040500060–4), with the financial support of the Ministry of Science and Technology of Taiwan (MOST grants 109-2111-M-001-001 and 110-2111-M-001-005) and by Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU), Taiwan. Publisher Copyright: © 2022, Pleiades Publishing, Ltd.

PY - 2022/6

Y1 - 2022/6

N2 - Abstract: Carbonyl oxides, or Criegee intermediates, play an important role in many physicochemical processes occurring in the Earth’s atmosphere. Criegee intermediates are chemically active compounds that easily react with other atmospheric components, promoting the formation of OH and CH3 radicals, toxic compounds of nitrogen, and various acids. Traditionally, the literature considers reactions involving only those carbonyl oxides that are the most stable in the troposphere under the standard atmospheric conditions. In this study, it is shown that in the mesosphere and ionosphere, where the total concentration of molecules is low and the intensity of UV radiation and the number of free electrons are high, reactions involving electronically excited states of the Criegee intermediates CH3CHOO play a significant role. In this case, we should take into account the features of the decomposition of all isomers of the CH3CHOO molecule.

AB - Abstract: Carbonyl oxides, or Criegee intermediates, play an important role in many physicochemical processes occurring in the Earth’s atmosphere. Criegee intermediates are chemically active compounds that easily react with other atmospheric components, promoting the formation of OH and CH3 radicals, toxic compounds of nitrogen, and various acids. Traditionally, the literature considers reactions involving only those carbonyl oxides that are the most stable in the troposphere under the standard atmospheric conditions. In this study, it is shown that in the mesosphere and ionosphere, where the total concentration of molecules is low and the intensity of UV radiation and the number of free electrons are high, reactions involving electronically excited states of the Criegee intermediates CH3CHOO play a significant role. In this case, we should take into account the features of the decomposition of all isomers of the CH3CHOO molecule.

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Excited State Dynamics of CH₃CHOO Criegee Intermediates in the Upper Atmosphere of the Earth

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