Physics – Chemical Physics
Scientific paper
2005-11-17
Physics
Chemical Physics
5 pages, 4 figures, accepted by Physical Review Letters
Scientific paper
10.1103/PhysRevLett.95.263202
Based on a simplest molecular orbital theory of H$_{2}^{+}$, a three-parameter model potential function is proposed to describe ground-state diatomic systems with closed-shell and/or S-type valence-shell constituents over a significantly wide range of internuclear distances. More than 200 weakly and strongly bound diatomics have been studied, including neutral and singly-charged diatomics (e.g., H$_{2}$, Li$_{2}$, LiH, Cd$_{2}$, Na$_{2}^{+}$, and RbH$^{-}$), long-range bound diatomics (e.g., NaAr, CdNe, He$_{2}$, CaHe, SrHe, and BaHe), metastable molecular dications (e.g., BeH$^{++}$, AlH$^{++}$, Mg$_{2}^{++}$, and LiBa$^{++}$), and molecular trications (e.g., YHe$^{+++}$ and ScHe$^{+++}$).
Gong Jiangbin
Xie Rui-Hua
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