The vibrationally excited reaction O(1D) + CHD3(ν1 = 1) has been investigated by crossed-molecular-beam experiments with a time-sliced velocity map imaging technique. Detailed and quantitative information is extracted on the C–H stretching excitation effects on the reactivity and dynamics of the title reaction, with the help of preparation of C–H stretching excited CHD3 molecules by direct infrared excitation. Experimental results show that the vibrational stretching excitation of the C–H bond almost does not affect the relative contributions between different dynamical pathways for all product channels. For the OH + CD3 product channel, the vibrational energy of the C–H stretching excited CHD3 reagent is channeled exclusively into the vibrational energy of the OH products. The vibrational excitation of the CHD3 reactant changes the reactivities for the ground-state and umbrella-mode-excited CD3 channels very modestly, while it significantly suppresses the corresponding CHD2 channels. For the CHD2(ν1 = 1) channel, the stretching excited C–H bond of the CHD3 molecule acts almost as a pure spectator.
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14 July 2023
Research Article|
July 10 2023
Effects of C–H stretching excitation on the dynamics of the O(1D) + CHD3 → OH/OD + CD3/CHD2 reaction
Jing Lv
;
Jing Lv
(Formal analysis, Investigation, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Hangzhou Institute of Advanced Studies, Zhejiang Normal University
, Hangzhou 311231, China
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Jiayue Yang;
Jiayue Yang
(Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Dong Zhang
;
Dong Zhang
(Data curation, Formal analysis, Investigation, Methodology, Software)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Florian Blauert
;
Florian Blauert
(Data curation, Methodology, Software)
3
Georg-August-Universität Göttingen
, Wilhelmsplatz 1, 37073 Göttingen, Germany
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Bo Jiang;
Bo Jiang
(Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Dongxu Dai;
Dongxu Dai
(Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Weiqing Zhang
;
Weiqing Zhang
(Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Guorong Wu
;
Guorong Wu
(Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision, Writing – review & editing)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Wenshao Yang
;
Wenshao Yang
a)
(Funding acquisition, Investigation, Project administration, Resources, Supervision, Writing – review & editing)
1
Hangzhou Institute of Advanced Studies, Zhejiang Normal University
, Hangzhou 311231, China
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Quan Shuai
;
Quan Shuai
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Project administration, Resources, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
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Xueming Yang
Xueming Yang
(Conceptualization, Funding acquisition, Investigation, Project administration, Resources, Supervision)
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
4
Hefei National Laboratory
, Hefei 230088, China
5
Department of Chemistry, Southern University of Science and Technology
, Shenzhen 518055, China
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Jing Lv
1,2
Jiayue Yang
2
Dong Zhang
2
Florian Blauert
3
Bo Jiang
2
Dongxu Dai
2
Weiqing Zhang
2
Guorong Wu
2
Wenshao Yang
1,a)
Quan Shuai
2,a)
Xueming Yang
2,4,5
1
Hangzhou Institute of Advanced Studies, Zhejiang Normal University
, Hangzhou 311231, China
2
State Key Laboratory of Molecular Reaction Dynamics and Dalian Coherent Light Source, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
, Dalian 116023, China
3
Georg-August-Universität Göttingen
, Wilhelmsplatz 1, 37073 Göttingen, Germany
4
Hefei National Laboratory
, Hefei 230088, China
5
Department of Chemistry, Southern University of Science and Technology
, Shenzhen 518055, China
J. Chem. Phys. 159, 024301 (2023)
Article history
Received:
April 07 2023
Accepted:
June 19 2023
Citation
Jing Lv, Jiayue Yang, Dong Zhang, Florian Blauert, Bo Jiang, Dongxu Dai, Weiqing Zhang, Guorong Wu, Wenshao Yang, Quan Shuai, Xueming Yang; Effects of C–H stretching excitation on the dynamics of the O(1D) + CHD3 → OH/OD + CD3/CHD2 reaction. J. Chem. Phys. 14 July 2023; 159 (2): 024301. https://doi.org/10.1063/5.0153370
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