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Summary of exchange perturbation calculations for H2 at large separations

✍ Scribed by Joseph O. Hirschfelder; Phillip R. Certain

Book ID
104577550
Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
514 KB
Volume
2
Category
Article
ISSN
0020-7608

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πŸ“œ SIMILAR VOLUMES

A simple method for calculating the exch
A simple method for calculating the exchange energy for H2+ from polarization perturbation theory
✍ K.T. Tang; J.P. Toennies; C.L. Yiu πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 204 KB

The exchange energy between two atoms has been expressed in terms of a flux integral over a localized wavefunction by Holstein and Herring. By approximating this wavefunction to first order in polarization perturbation theory (Rayleigh-Schrijdinger theory) it is possible to calculate the exchange en

The exchange energy of H+2 calculated fr
The exchange energy of H+2 calculated from the exact first-order wavefunction of polarization perturbation theory
✍ G.L. Guo; K.T. Tang; C.L. Yiu πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 229 KB

The exact analytic first-order wavefunction of an H atom in the field of a proton obtained from the unsymmetrized perturbation theory as calculated in 1957 by Dalgamo and Lynn is used to calculate the exchange energy of Hz with the Holstein-Herring method. The asymptotic exchange energy obtained fro

Resolution of a paradox in the calculati
Resolution of a paradox in the calculation of exchange forces for H+2
✍ T.C. Scott; J.F. Babb; A. Dalgarno; John D. Morgan III πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 822 KB

Tang, Toennies and Yiu have shown that despite the inherent symmetry of H2+, wavefunctions obtained from a combination of the unsymmetrized polarization expansion and the 1 /R expansion can be used in the Holstein-Herring formula to calculate for large internuclear distances R the leading 8(eeR) ter