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  • AIP Publishing  (3)
  • Yan, Dong  (3)
  • Asia - CrossAsia  (3)
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  • AIP Publishing  (3)
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  • Asia - CrossAsia  (3)
  • 1
    Online Resource
    Online Resource
    Imaging reaction dynamics of Y+SO2
    AIP Publishing ; 2020
    In:  Chinese Journal of Chemical Physics Vol. 33, No. 2 ( 2020-04-01), p. 239-242
    Details
    In: Chinese Journal of Chemical Physics, AIP Publishing, Vol. 33, No. 2 ( 2020-04-01), p. 239-242
    Abstract: The reaction dynamics of yttrium atoms with sulfur dioxide molecules at a high collision energy of 36 kcal/mol was studied using time-sliced velocity map ion imaging, crossed molecular beam and laser-ablation method. The product YO was detected via multiphoton ionization at various wavelengths in the region of 482–615 nm. The slice images of YO show a broad velocity distribution and forward-backward peaking angular distribution. The forward scattering signal is stronger than its backward distribution. This indicates that the reaction proceeds via an intermediate complex and the lifetime of the intermediate state is less than one rotational period. The formation of complex suggests that electron transfer occurs in the oxidation reaction.
    Type of Medium: Online Resource
    ISSN: 1674-0068 , 2327-2244
    URL: Article
    DOI: 10.1063/1674-0068/cjcp2002029
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2381472-X
    SSG: 6,25
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  • 2
    Online Resource
    Online Resource
    Imaging photodissociation dynamics of MgO at 193 nm
    AIP Publishing ; 2022
    In:  Chinese Journal of Chemical Physics Vol. 35, No. 2 ( 2022-04-01), p. 257-262
    Details
    In: Chinese Journal of Chemical Physics, AIP Publishing, Vol. 35, No. 2 ( 2022-04-01), p. 257-262
    Abstract: In this work, we used time-sliced ion velocity imaging to study the photodissociation dynamics of MgO at 193 nm. Three dissociation pathways are found through the speed and angular distributions of magnesium. One pathway is the one-photon excitation of MgO(X1Σ+) to MgO(G1Π) followed by spin-orbit coupling between the G1Π, 33Π and 15Π states, and finally dissociated to the Mg(3Pu)+O(3Pg) along the 15Π surface. The other two pathways are one-photon absorption of MgO(A1Π) state to MgO(G1Π) and MgO(41Π) state to dissociate into Mg(3Pu)+O(3Pg) and Mg(1Sg)+O(1Sg), respectively. The anisotropy parameters of the dissociation pathways are related to the lifetime of the vibrational energy levels and the coupling of rotational and vibronic spin-orbit states. The total kinetic energy analysis gives D0(Mg−O)=21645±50 cm−1.
    Type of Medium: Online Resource
    ISSN: 1674-0068 , 2327-2244
    URL: Article
    DOI: 10.1063/1674-0068/cjcp2112272
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2381472-X
    SSG: 6,25
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  • 3
    Online Resource
    Online Resource
    Advanced techniques for quantum-state specific reaction dynamics of gas phase metal atoms
    AIP Publishing ; 2021
    In:  Chinese Journal of Chemical Physics Vol. 34, No. 1 ( 2021-02-01), p. 61-70
    Details
    In: Chinese Journal of Chemical Physics, AIP Publishing, Vol. 34, No. 1 ( 2021-02-01), p. 61-70
    Abstract: One of the themes of modern molecular reaction dynamics is to characterize elementary chemical reactions from “quantum state to quantum state”, and the study of molecular reaction dynamics in excited states can help test the validity of modern chemical theories and provide methods to control chemical reactions. The subject of this review is to describe the recent experimental techniques used to study the reaction dynamics of metal atoms in the gas phase. Through these techniques, information such as the internal energy distribution and angular distribution of the nascent products or the three-dimensional stereodynamic reactivity can be obtained. In addition, by preparing metal atoms with specific excited electronic states or orbital arrangements, information about the reactivity of the electronic states enriches the relevant understanding of the electron transfer mechanism in metal reaction dynamics.
    Type of Medium: Online Resource
    ISSN: 1674-0068 , 2327-2244
    URL: Article
    DOI: 10.1063/1674-0068/cjcp2102026
    Language: English
    Publisher: AIP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2381472-X
    SSG: 6,25
    Location Call Number Limitation Availability
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