Abstract

A general formula in terms of overlap integrals has been established for the 2 ν-pole electric moments of a molecule by the Hartree–Fock–Roothaan method involving the use of real or complex Slater-type orbitals (STOs). Using this formula we have calculated the monopole, dipole, quadrupole, and octupole moments of the ground states for a series of diatomic molecules. By the use of the derived expressions the electric multipole moment integrals, therefore, the electric properties of molecules can be evaluated most efficiently and accurately.

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