期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 24, 期 37, 页码 22971-22977出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cp03456e
关键词
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资金
- Junta de Andalucia under FEDER funds [P20_ 00146]
- Spanish Ministerio de Universidades [FPU16/05950]
In this study, the stability of a hydrogen molecule confined inside a C-60 structure is investigated through an analysis of the electronic spectrum. The study finds that the position of the atoms inside the cavity affects the inter-atomic distance and the energetic configuration of the molecule.
In this study, we address the problem of a C-60 endohedrally confined hydrogen molecule through a configuration-interaction approach to electronic dynamics. Modeling the confinement by means of a combination of two Woods-Saxon potentials, we analyze the stability of the system as a function of the nuclei position through the behavior of the electronic spectrum. After studying the convergence of two different partial wave expansions, one related to the molecular Coulomb centers and the other related to the off-centering of the C-60 well, we found that the second approach provides a more accurate description of the system. Furthermore, we observed that the inter-atomic distance changes based on the position of the atoms inside the cavity. Thus, to obtain the most favourable energetic configuration for the molecule, it should be positioned inside the cavity next to the structure, where its size decreases.
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