Editing Intermolecular pair potential
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The '''intermolecular pair potential''' is a widely used approximation. Real intermolecular interactions consist of two-body interactions, three-body interactions, four-body interactions etc. However, the calculation of even three-body interactions is computationally time consuming, and the calculation of only two-body interactions is frequent. | The '''intermolecular pair potential''' is a widely used approximation. Real intermolecular interactions consist of two-body interactions, three-body interactions, four-body interactions etc. However, the calculation of even three-body interactions is computationally time consuming, and the calculation of only two-body interactions is frequent. | ||
Such "effective" pair potentials often include the higher order interactions implicitly. | Such "effective" pair potentials often include the higher order interactions implicitly. | ||
==Axially symmetric molecules== | ==Axially symmetric molecules== | ||
In general, the [[intermolecular pair potential]] for axially symmetric molecules, <math>\Phi_{12} </math>, is a function of five coordinates: | In general, the [[intermolecular pair potential]] for axially symmetric molecules, <math>\Phi_{12} </math>, is a function of five coordinates: |