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


Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \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 Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \Phi_{12}} is the intermolecular pair potential, and Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \rho} is the shortest distance between molecule cores.

Oblate core

[2].

References

  1. ↑ Taro Kihara "The Second Virial Coefficient of Non-Spherical Molecules", Journal of the Physical Society of Japan 6 pp. 289-296 (1951)
  2. ↑ Francisco Gámez, Santiago Lago, Benito Garzón, Patrick J. Merkling and Carlos Vega "Vapour-liquid equilibrium of fluids composed by oblate molecules", Molecular Physics 106 pp. 1331-1339 (2008)

Related material

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