Summary
Handy et al. have shown that the asymptotic behavior of Hartree-Fock orbitals is controlled by the energy of highest occupied molecular orbital, except for the atomic case in which onlys-orbitals are occupied. However, their proof is not complete at one point. This point is clarified, and a more unified derivation is given. Further, we discuss the preexponential factorr α of the leading asymptotic termr α exp[−βr], where β=(−2εHOMO)1/2 and εHOMO is the orbital energy of HOMO. New results are obtained for linear molecules, and the results of several authors for atoms and non-linear molecules are reproduced.
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In Ref. 7, the integral with respect tor′ was treated without dividing integral region. However, the integral region should be divided into 0 tor andr to ∞ according to each Laplace expansion forr′<r andr′>r
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Ishida, T., Ohno, K. On the asymptotic behavior of Hartree-Fock orbitals. Theoret. Chim. Acta 81, 355–364 (1992). https://doi.org/10.1007/BF01134860
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DOI: https://doi.org/10.1007/BF01134860