Abstract
Correlations are discussed for van der Waals interactions [V(x)] of two types: between two atoms and between an atom and a surface. Letting ε be the well depth and Cn be the asymptotic dispersion coefficient [such that V(x) ∼ - Cnx-n], it is shown that (C n/ε)1/n is proportional to the equilibrium distance and to the decay length of the repulsive part of the interaction. A simple model which describes and unifies these correlations is presented.
Original language | English (US) |
---|---|
Pages (from-to) | 3995-3999 |
Number of pages | 5 |
Journal | The Journal of Chemical Physics |
Volume | 87 |
Issue number | 7 |
DOIs | |
State | Published - Jan 1 1987 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
- Physical and Theoretical Chemistry