Wei potential

The Wei potential is given by (Eq. 7 in ):

$\Phi (r)=D_{e}\left[{\frac {1-e^{-b(r-r_{e})}}{1-ce^{-b(r-r_{e})}}}\right]^{2},~~~~~~|c|<1$

with

$b=a(1-c)$

References

Related reading

• Chun-Sheng Jia, Yong-Feng Diao, Xiang-Jun Liu, Ping-Quan Wang, Jian-Yi Liu, and Guang-Dong Zhang "Equivalence of the Wei potential model and Tietz potential model for diatomic molecules", Journal of Chemical Physics 137 014101 (2012)