Calculation of dipole–dipole dispersion coefficients for liquid metals
- 1 February 1980
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 72 (3) , 2050-2053
- https://doi.org/10.1063/1.439353
Abstract
Based on simple considerations, the dipole–dipole dispersion coefficients for long‐ranged attractive forces in liquid metals are calculated. The derived relation contains parameters such as heat of vaporization and molar volume at 0 K. An analysis of subsequently evaluated van der Waals constants and internal pressure corroborates present estimations. For metals of the same group in the periodic table, the dispersion coefficient is found to be an inverse function of electron density estimated at the boundary of a Wigner–Seitz atomic cell.Keywords
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