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O_2的外电场效应研究 被引量:5

Exploring the effects of external electric field on the oxygen molecule
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摘要 本文首先采用多种方法,分别在不同的基组水平下,对O2的几何构型进行了优化,然后用密度泛函(DFT)(b3p86)方法在6-31G(d)基组水平上,在不同的外电场作用下,对O2的平衡结构进行了优化计算.在得到稳定几何构型的基础上,计算和讨论了偶极外电场对O2基态的几何构型、电偶极矩、原子电荷数的分布、振动频率、轨道能级分布等性质的影响. In this paper, first, the geometric structure of ground state of oxygen molecule is optimizated by many methods and with various basis sets levels. Then the equilibrium geometries of O2 under external electric field is optimizated in Density Functional Theory (DFT) (b3p86) with basis sets 6-31g(d). Based on the steady geometric structure, we calculate and analyse the change of geometry, dipole moments, total atomic charges distrination, frequence and energy levels of O2 under different external electric fields.
出处 《原子与分子物理学报》 CAS CSCD 北大核心 2008年第3期721-726,共6页 Journal of Atomic and Molecular Physics
基金 河南师范大学青年基金(2006005) 河南省教育厅基础研究项目(2008A140006)
关键词 O2 外电场 密度泛函 几何结构 基态 oxygen molecule, external electric field, density functional theory(DFT), geometry, ground state
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