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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Collision-Energy Dependence of the Ion-Molecule Charge-Exchange Reaction Ar+ + CO -> Ar + CO+
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Collision-Energy Dependence of the Ion-Molecule Charge-Exchange Reaction Ar+ + CO -> Ar + CO+

机译:离子分子电荷交换反应Ar + + Co - > Ar + Co +的碰撞 - 能量依赖性

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摘要

Ion-molecule charge-exchange reactions Ar+ + CO -> Ar + CO+ at the centerof-mass collision energies of 4.40, 6.40, and 8.39 eV are investigated using ion velocity map imaging technique. Although multiple electronically excited states of CO+ are accessed, the population of CO+ at the A(2)Pi state is predominant in the present collision-energy range. In contrast to our previous study for NO, but similar to the case of O-2, the forward-scattered CO+ yields show a broader angular distribution at the higher collision energy. Typically, the Franck-Condon-region charge transfer, energy resonant charge transfer, and intimate collision are three different mechanisms in which the intimate collision experiences an intermediate complex, and this mechanism usually plays an essential role in the thermal-energy reactions. However, the present observations indicate that this mechanism, concerning the intermediate (Ar-Co)(+), is still of utmost importance in a relatively high collision-energy range.
机译:使用离子速度映射成像技术研究了离子分子电荷反应Ar ++ Co - > Ar + Co + CO + CO + ..使用离子速度映射成像技术研究了4.40,6.40和8.39eV。 尽管访问了多种电子激发态的CO +状态,但在A(2)PI状态下的CO +群是主要的碰撞能量范围。 与我们以前的NO研究相比,但类似于O-2的情况,前散散的CO +产量在更高的碰撞能量下显示出更广泛的角度分布。 通常,Franck-Condon区电荷转移,能量谐振电荷转移和紧密碰撞是三种不同的机制,其中紧密碰撞经历中间复合物,并且该机制通常在热能反应中起重要作用。 然而,本观察结果表明,关于中间体(Ar-Co)(+)的这种机制在相对高的碰撞能量范围内仍然至关重要。

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    Univ Sci &

    Technol China Collaborat Innovat Ctr Chem Energy Mat iChEM Dept Chem Phys Hefei Natl Lab Phys Sci Microscale Hefei 230026 Peoples R China;

    Univ Sci &

    Technol China Collaborat Innovat Ctr Chem Energy Mat iChEM Dept Chem Phys Hefei Natl Lab Phys Sci Microscale Hefei 230026 Peoples R China;

    Univ Sci &

    Technol China Collaborat Innovat Ctr Chem Energy Mat iChEM Dept Chem Phys Hefei Natl Lab Phys Sci Microscale Hefei 230026 Peoples R China;

    Univ Sci &

    Technol China Collaborat Innovat Ctr Chem Energy Mat iChEM Dept Chem Phys Hefei Natl Lab Phys Sci Microscale Hefei 230026 Peoples R China;

    Univ Sci &

    Technol China Collaborat Innovat Ctr Chem Energy Mat iChEM Dept Chem Phys Hefei Natl Lab Phys Sci Microscale Hefei 230026 Peoples R China;

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  • 正文语种 eng
  • 中图分类 物理化学(理论化学)、化学物理学;
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