Abstract

Employing the general formula developed previously by the author for the expansion of a Slater type orbital from one center on to the other, the expressions for the two-center hybrid, Coulomb and exchange integrals and two-and three-center hyperfine interaction matrix elements have been presented. The derived hybrid and Coulomb integrals and two-center hyperfine interaction matrix elements have been obtained in closed forms. The importance of the formulas has been demonstrated by presenting calculations for Slater type orbitals involving s, p, d, f, g, h quantum numbers. The evaluation of general multi-center integrals using the expansion formula has been discussed.

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