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Zur Berücksichtigung der Elektronenwechselwirkung in der Elektronengasmethode

✍ Scribed by H. Labhart


Publisher
John Wiley and Sons
Year
1956
Tongue
German
Weight
512 KB
Volume
39
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

Coulomb‐ and exchange integrals in FE MO theory may be expressed in terms of an effective distance between the volume elements of the interacting charge distributions. This effective distance is calculated theoretically in dependence of the geometrical distance. The obtained curve compares favorably with points determined semiempirically from the benzene spectrum by Ham and Ruedenberg as well as with Kuhns heuristic curve. Application to the ethylene spectrum gives for the first excited singlet state 9.7 eV and for the singlet‐triplet splitting 4.0 eV in somewhat better agreement with experiment than purely theoretical LCAO MO theory.


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