Extended pairwise additivity: interactions of degenerate atoms with rare-gas atoms
- 28 August 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (16) , 2697-2705
- https://doi.org/10.1088/0022-3700/12/16/016
Abstract
The concept of pairwise additivity is extended to include one degenerate atom interacting with an arbitrary number of rare-gas atoms. The interaction is written as a matrix of dimensionality equal to the degeneracy. Adiabatic polyatomic energy surfaces are obtained by diagonalising the interaction matrix. The energy surfaces are compared to SCF calculations for the case of a lithium atom interacting with two helium atoms. Formulae are given for the addition of spin-orbit coupling.Keywords
This publication has 12 references indexed in Scilit:
- Diatomics-in-molecules potential surfaces for the triatomic rare gas halides: Rg2XThe Journal of Chemical Physics, 1978
- Three-body alkali-noble-gas interactions and secondary satellitesJournal of Physics B: Atomic and Molecular Physics, 1977
- Nonadditive three-body interactions of rare-gas atoms. II. Intermediate and large distancesPhysical Review A, 1975
- Nonadditive three-body interactions of rare-gas atoms. I. Small and intermediate distancesPhysical Review A, 1975
- Semiclassical Theory of Inelastic Collisions. I. Classical Picture and Semiclassical FormulationPhysical Review A, 1972
- Non-additivity in intermolecular forces. A comparison of results obtained by different methodsChemical Physics Letters, 1971
- Interaction Energy Curves of LiHe and NaHe (X 2Σ+, A 2Π, B 2Σ+) and X 1Σ+ IonsThe Journal of Chemical Physics, 1971
- Non-additivity of intermolecular forces in He3 within the SCF LCAO MO approximationChemical Physics Letters, 1971
- van der Waals Constant between Alkali and Noble-Gas Atoms. II. Alkali Atoms in Excited StatesThe Journal of Chemical Physics, 1969
- A Method of Diatomics in Molecules. I. General Theory and Application to H2OJournal of the American Chemical Society, 1963