Dipolehyphen;Moment Function for Diatomic Molecules

摘要

The functional form of the dipolehyphen;moment function of a diatomic molecule is investigated in the unitedhyphen;atom and separatedhyphen;atom limits. The moment goes to zero asR3for anSorPunited atom, and asR5for aDorFunited atom. For separated atoms, the moment goes asRmdash;4if at least one atom has a quadrupole moment, and asRmdash;7otherwise. Evidence is given that simply combining the two limiting functional forms is insufficient to represent the actual dipolehyphen;moment function.