Ion-Velocity Imaging Study of Dissociative Charge Exchange Reactions between Ar+ and trans-/cis-Dichloroethylene

Zi-Xin Chen; Jie Hu; Yaya Zhi; Chun-Xiao Wu; Shan Xi Tian

doi:10.1063/1674-0068/cjcp2301005

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Zi-Xin Chen, Jie Hu, Yaya Zhi, Chun-Xiao Wu, Shan Xi Tian. Ion-Velocity Imaging Study of Dissociative Charge Exchange Reactions between Ar+ and trans-/cis-Dichloroethylene[J]. Chinese Journal of Chemical Physics . doi: 10.1063/1674-0068/cjcp2301005

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Zi-Xin Chen, Jie Hu, Yaya Zhi, Chun-Xiao Wu, Shan Xi Tian. Ion-Velocity Imaging Study of Dissociative Charge Exchange Reactions between Ar⁺ and trans-/cis-Dichloroethylene[J]. Chinese Journal of Chemical Physics . doi: 10.1063/1674-0068/cjcp2301005

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Ion-Velocity Imaging Study of Dissociative Charge Exchange Reactions between Ar⁺ and trans-/cis-Dichloroethylene

doi: 10.1063/1674-0068/cjcp2301005

Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China

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Corresponding author: E-mail: huadie08@ustc.edu.cn; sxtian@ustc.edu.cn
Received Date: 2023-01-14
Accepted Date: 2023-03-30

Available Online: 2023-03-30

Abstract

Abstract

Dissociative charge exchange reactions between Ar⁺ ion and trans-/cis-dichloroethylene (trans-/cis-C₂H₂Cl₂) are investigated with the ion-velocity imaging technique. The dechlorinated product C₂H₂Cl⁺ is the predominant, and most of this product show the spatial distribution around the target, implying that the dissociation occurs in the large impact-parameter collision and via the energy resonant charge transfer. Meanwhile, a few C₂H₂Cl⁺ locate around the center-of-mass, which is attributed to the fragmentation of intimate association between C₂H₂Cl₂ and Ar⁺ or in the small impact-parameter collision. The product C₂HCl⁺ exhibits the velocity distribution features similar to those of C₂H₂Cl⁺. The rarest product C₂HCl₂⁺ shows the distributions around the molecular target, due to the quick dehydrogenation after the energy-resonant charge transfer in the large impact-parameter collision.
- Ion-molecule reaction,
- Dissociative charge exchange,
- Velocity map imaging

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References(20)

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