Generalized Jansen's perturbation theory for exchange interactions between aroms or molecules |
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Authors: | Noboru Suzuki |
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Abstract: | The theory for treating exchange interactions between atoms or molecules as a perturbation, which was first propoed by Jansen, is extended to general cases by the use of the group algebraic technique and a nonorthogonal basis set. As a result, a new expresion for the perturbation ket and energy of each order is obtained. A comparion of the expression with those presented by other investigators is made. |
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