Ion-momentum imaging of dissociative attachment of electrons to molecules
Ion-momentum imaging of dissociative attachment of electrons to molecules
复制标题
电子与分子解离附着的离子动量成像
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
D. Haxton
中科院分区：
文献类型：
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作者：
Daniel Slaughter;A. Belkacem;C. W. McCurdy;T. Rescigno;D. Haxton
我们提出了一个概述的实验和理论研究的解离电子附着的动量成像。我们以小多原子电子分子系统的形式描述了特征瞬时阴离子动力学的几个关键例子。在这些例子中的每一个所谓的轴向反冲近似被发现打破，由于瞬态阴离子的电子和核自由度的相关性。指导阴离子碎片动量测量和预测的电子散射附着概率的分子框架中，我们表明，准确的预测的解离动力学可以实现没有详细调查的表面拓扑结构的相关电子状态或碎片轨迹在这些表面上。
We present an overview of experiments and theory relevant to dissociative electron attachment studied by momentum imaging. We describe several key examples of characteristic transient anion dynamics in the form of small polyatomic electron–molecule systems. In each of these examples the so-called axial recoil approximation is found to break down due to correlation of the electronic and nuclear degrees of freedom of the transient anion. Guided by anion fragment momentum measurements and predictions of the electron scattering attachment probability in the molecular frame, we demonstrate that accurate predictions of the dissociation dynamics can be achieved without a detailed investigation of the surface topology of the relevant electronic states or the fragment trajectories on those surfaces.
DOI：
10.1021/jp503179d
发表时间：
2014-08-21
期刊：
The journal of physical chemistry. A
影响因子：
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作者：
Postler J;Vizcaino V;Denifl S;Zappa F;Ralser S;Daxner M;Illenberger E;Scheier P
通讯作者：
Scheier P