ANALYTIC POTENTIAL-ENERGY FUNCTION FOR DOUBLY-CHARGED IONS BH2+,CH2+ AND NH2+

An analytic potential function with four parameters, which was propose d previousely by two of the authors and can be used to describe the po tential curves for doubly charged diatomic ions with both potential mi nimum and maximum, has been discussed in detail in the present work. A s examples, this form of potential functions for ground states of BH2,CH2+ and NH2+ have been obtained for the first time. The force consta nts and spectroscopic data for these dications have also been worked o ut. (C) 1998 Elsevier Science B.V. All rights reserved.