# Kihara potential

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The Kihara potential, developed by Taro Kihara [1] in 1951, is a non-spherical generalisation of the Lennard-Jones model. It is given by

$\Phi_{12}(\rho)=\Phi_0 \left[\frac{m}{n-m}\left(\frac{\rho_{0}}{\rho}\right)^n-\frac{n}{n-m}\left(\frac{\rho_{0}}{\rho}\right)^m\right], ~~~ n>m>3.$

where $\Phi_{12}$ is the intermolecular pair potential, and $\rho$ is the shortest distance between molecule cores.

[2].

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