With the one-electron functions (pi so generated we constmct the determinants [Pg.326]

We then perform a Cl calculation leading to the wave function [Pg.328]

On tbe other hand. Fig. 4c shows the shape of the weight function for the excited state, pointing at optimal a values close to 0.7, although in this case also there is a secondary peak for low values of a. [Pg.328]

To return to the discussion of Slater in 1972 [34], it seems that, as our results suggest, a = 1.0 would be best for the ground state, while a = 0.7 would be indicated for the first excited state with the same symmetry. Perhaps GCM could be an alternative manner to study the exchange-correlation term in DFT. [Pg.328]

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