%0 Journal Article %T A novel analytic potential function applied to neutral diatomic molecules and charged lons %A Chang-Feng Yu %A Chang-Jun zhu %A Chong-Hui Zhang %A Li-Xun Song %A Qiu-Pin Wang %J Natural Science %P 184-189 %@ 2150-4105 %D 2010 %I Scientific Research Publishing %R 10.4236/ns.2010.23028 %X In this paper, a new method on constructing analytical potential energy functions is pre-sented, and from this a analytical potential en-ergy function applied to both neutral diatomic molecules and charged diatomic molecular ions is obtained. This potential energy function in-cludes three dimensionless undetermined pa-rameters which can be determined uniquely by solving linear equations with the experimental spectroscopic parameters of molecules. The solutions of the dimensionless undetermined parameters are real numbers rather than com-plex numbers, this ensures that the analytical potential energy function has extensive uni-versality. Finally, the potential energy function is examined with four kinds of diatomic molecules or ions¡ªhomonuclear neutral diatomic mole-cule , and , homonuclear charged diatomic molecular ion , and , heter-nuclear neutral diatomic Molecule , and , heternuclear ch- arged diatomic Molecular ion , and ,as a conseque- nce, good results are obtained. %K Diatomic Molecules And Ions %K Potential Energy Function %K Force Constants %K Spectroscopic Pa-rameters %K Phase Factor %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1564