作者: Stephen K. Knudson , Ian C. Palmer
DOI: 10.1016/S0301-0104(97)00226-7
关键词: Quantum tunnelling 、 Physics 、 Semiclassical physics 、 Quantum number 、 Diatomic molecule 、 Electron 、 Charge (physics) 、 Quantum 、 Eigenvalues and eigenvectors 、 Quantum mechanics
摘要: Abstract The primitive semiclassical method is applied to the motion of electron in an asymmetrically charged one-electron diatomic molecule fixed nucleus approximation. Using Einstein-Keller-Brillouin rules, approximations eigenvalues are found for planar (σ states). general diatom HeH2+. agreement between classical and quantum qualitatively good often quantitatively good, within a fraction percent. For two stable states considered, results fail at onset chemical bonding, emphasizing importance tunnelling. In contrast charge symmetric molecules, some non-bonding all internuclear separations. An interesting scaling law derived with common ratio numbers: (2n + 1)2 En(Rn) = (2m Em(Rm), where Rn Rm.