In the present paper, the ground state van der Waals potential of the Radon dimer is described by the Tang-Toennies potential model, which requires five essential parameters. Among them, the two dispersion coefficients C₆$C_6$ and C₈$C_8$ are estimated from the well determined dispersion coefficients C₆$C_6$ and C₈$C_8$ of Xe₂. C₁₀$C_{10}$ is estimated by using the approximation equation that $C_6{C}_{10}/C_8^2$ has an average value of 1.221 for all the rare gas dimers. With these estimated dispersion coefficients and the well determined well depth D_e$D_e$ and R_e$R_e$ the Born-Mayer parameters A$A$ and b$b$ are derived. Then the vibrational energy levels of the ground state radon dimer are calculated. 40 vibrational energy levels are observed in the ground state of Rn₂ dimer. The last vibrational energy level is bound by only 0.0012 cm^-1.

中文翻译：

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基态Rad二聚体的范德华力和振动能级

在本文中，Tang-Toennies势模型描述了Radon二聚体的基态Van der Waals势，该势模型需要五个基本参数。其中，两个色散系数C ₆$C_6$和C ₈$C_8$根据确定的色散系数C ₆估算$C_6$和C ₈$C_8$的Xe ₂。C ₁₀$C_{10}$ 通过使用近似方程来估算 $C_6{C}_{10}/C_8^{\mathrm{2个}}$所有稀有气体二聚体的平均值为1.221。利用这些估计的色散系数和确定好的井深D _e$d_{Ë}$和R _e${\mathrm{[R}}_{Ë}$Born-Mayer参数A$\mathrm{一个}$和b$b$派生。然后计算基态ra二聚体的振动能级。在Rn ₂二聚体的基态下观察到40个振动能级。最后的振动能级仅受限于0.0012 cm ^-1。