Collision energy dependence of the HD(nu' = 2) product rotational distribution of the H + D2 reaction in the range 1.30-1.89 eV.
Collision energy dependence of the HD(nu' = 2) product rotational distribution of the H + D2 reaction in the range 1.30-1.89 eV.
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HD2 反应的 HD(nu = 2) 产物旋转分布在 1.30-1.89 eV 范围内的碰撞能量依赖性。
DOI：
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发表时间：
2004
影响因子：
4.4
通讯作者：
J. Castillo
中科院分区：
文献类型：
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作者：
F. Ausfelder;A. Pomerantz;R. Zare;S. Althorpe;F. Aoiz;L. Bañares;J. Castillo
在Ecol = 1.30 ~ 1.89 eV的碰撞能量范围内，对H + D2反应HD（nu' = 2,j'）旋转产物态分布对碰撞能量的依赖进行了实验和理论研究。基于时间依赖和时间独立的量子力学方法的理论结果几乎完全一致，并且在低碰撞能量下与实验吻合良好，在高碰撞能量下与实验吻合非常好。这种行为与先前关于HD（nu' = 3,j'）产物状态旋转分布的报告形成鲜明对比[Pomerantz et al., j . Chem.]。在实验和理论之间的系统差异被观察到，特别是在最高的碰撞能量。造成这种不同行为的原因尚不清楚。此外，本研究利用无多普勒光谱解决了源自HD（nu' = 2,j' = 1）态的E， F-X共振增强的多光子电离跃迁的模糊性，发现这是由来自HD（nu' = 1,j' = 14）态的跃迁偶然混合引起的。
An experimental and theoretical investigation of the collision energy dependence of the HD(nu' = 2,j') rotational product state distribution for the H + D2 reaction in the collision energy range of Ecol = 1.30-1.89 eV has been carried out. Theoretical results based on time-dependent and time-independent quantum mechanical methods agree nearly perfectly with each other, and the agreement with the experiment is good at low collision energies and very good at high collision energies. This behavior is in marked contrast to a previous report on the HD(nu' = 3,j') product state rotational distribution [Pomerantz et al., J. Chem. Phys. 120, 3244 (2004)] where a systematic difference between experiment and theory was observed, especially at the highest collision energies. The reason for this different behavior is not yet understood. In addition, this study employs Doppler-free spectroscopy to resolve an ambiguity in the E, F-X resonantly enhanced multiphoton ionization transition originating from the HD(nu' = 2,j' = 1) state, which is found to be caused by an accidental blending with the transition coming from the HD(nu' = 1,j' = 14) state.