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Localized bond orbitals and the correlation problem

III. Energy up to the third-order in the zero-differential overlap approximation. Application to σ-electron systems

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Abstract

Formulas are given allowing the calculation of electronic molecular energy up to the third-order in a perturbation theory using fully localized bond orbitals with zero differential overlap between them. The method is applied to small molecules using the CNDO approximations of Pople and Segal.

Zusammenfassung

Es werden Formeln angegeben, die die Berechnung der Energie von Molekülen bis zur 3. Ordnung in einer Störungstheorie erlauben. Der Rechnung liegen dabei völlig lokalisierte Bindungsorbitale und die ZDO Näherung zugrunde. Die Methode wird auf kleine Moleküle angewandt, wobei die CNDO-Approximationen von Pople und Segal benutzt werden.

Résumé

Rappel des formules permettant le calcul de l'énergie électronique d'un système moléculaire au troisième ordre de la théorie des perturbations à l'aide d'une base d'orbitales de liaison totalement localisées et à recouvrement différentiel nul. Application à de petites molécules dans le cadre des approximations de la méthode CNDO de Pople et Segal.

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NATO Postdoctoral Fellow in Science 1967–1968.

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Diner, S., Malrieu, J.P., Jordan, F. et al. Localized bond orbitals and the correlation problem. Theoret. Chim. Acta 15, 100–110 (1969). https://doi.org/10.1007/BF00528246

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  • DOI: https://doi.org/10.1007/BF00528246

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