Rotationally inelastic scattering of hydrogen molecules and the non-spherical interaction
Rotationally inelastic scattering of hydrogen molecules and the non-spherical interaction
复制标题
氢分子的旋转非弹性散射和非球形相互作用
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
U. Buck
中科院分区：
文献类型：
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作者：
U. Buck
氢分子旋转跃迁状态-状态微分截面的分子束散射实验是探测氢分子与其他原子和分子的各向同性和各向异性相互作用势的灵敏探针。对弱耦合系统D2+ Ar的新实验结果可以可靠地确定完全电位的排斥部分。它与众所周知的D2-Ne - 2势和最近提出的预测一般行为但不能预测细节的模型势进行了比较。对于重要的H2 - H2相互作用，给出了HD + D2和D2+ H2碰撞中0→2跃迁的微分截面。对这些数据的评估导致排斥性各向异性势项显示出与先前发现的各向同性相互作用的最佳从头计算相同的0.1 A到较小r值的位移。
Molecular-beam scattering experiments on state-to-state differential cross-sections for rotational transitions of hydrogen molecules are a sensitive probe for both the isotropic and the anisotropic interaction potential with other atoms and molecules. New experimental results on the weakly coupled system D2+ Ar allow reliable determination of the repulsive part of the complete potential. It is compared with the well known D2–Ne 2 potential and recently proposed model potentials which predict the general behaviour but not the details. For the important H2–H2 interaction differential cross-sections for 0→2 transitions in HD + D2 and D2+ H2 collisions are presented. The evaluation of these data leads to repulsive anisotropic potential terms which show the same shift of 0.1 A to smaller R-values with respect to the best ab initio calculation found previously for the isotropic interaction.