Quantum stereodynamical control on the Mg+(2S) + HD (v = 1, j = 1) → MgH+/ MgD+ + D/H reaction

IF 2.4 3区 化学 Q4 CHEMISTRY, PHYSICAL
Xiaoxi Xu , Muhong Hu
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引用次数: 0

Abstract

Here, we investigate the stereodynamical control on the Mg+(2S) + HD (v = 1, j = 1) → MgH+/ MgD+ + D/H reaction using time-dependent wavepacket method. The result shows that the alignment of the molecule (β) leads to significant effects on both product channels within the collision energy range of 2.50–4.00 eV. The parallel configuration (β = 0°) suppresses the formation of MgH+ product while enhancing the formation of MgD+ product, whereas the perpendicular configuration (β = 90°) preferentially promotes the generation of MgH+ product. Effective control over the product cross-section branching ratio can also be achieved by changing β. The analysis of the differential cross-section reveals that stereodynamical control primarily affects the forward scattering in the MgH+ channel and the backward scattering in the MgD+ channel. Compared to the parallel configuration, the perpendicular alignment leads products into higher ro-vibrational states.
Mg+(2S) + HD (v = 1, j = 1)→MgH+/ MgD+ + D/H反应的量子立体动力学控制
本文采用时变波包法研究了Mg+(2S) + HD (v = 1, j = 1)→MgH+/ MgD+ + D/H反应的立体动力学控制。结果表明,在碰撞能量为2.50 ~ 4.00 eV范围内,分子(β)的排列对两个产物通道都有显著影响。平行结构(β = 0°)抑制MgH+产物的生成,促进MgD+产物的生成,而垂直结构(β = 90°)优先促进MgH+产物的生成。通过改变β也可以有效地控制产物的横截面分支比。微分截面分析表明,立体动力控制主要影响MgH+通道的前向散射和MgD+通道的后向散射。与平行结构相比,垂直排列使产品进入更高的反振动状态。
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来源期刊
Chemical Physics
Chemical Physics 化学-物理:原子、分子和化学物理
CiteScore
4.60
自引率
4.30%
发文量
278
审稿时长
39 days
期刊介绍: Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.
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