The 9-3 Lennard-Jones potential is related to the standard Lennard-Jones potential.
It takes the form:
![{\displaystyle V(r)={\frac {3{\sqrt {3}}}{2}}\epsilon \left[\left({\frac {\sigma }{r}}\right)^{9}-\left({\frac {\sigma }{r}}\right)^{3}\right].}](https://wikimedia.org/api/rest_v1/media/math/render/svg/165d80fbb8c692498e9ffa866c81cb5f1466306e)