The theory study of vibrating spectrum of diatomic molecules by using P. M.Morse's potential function

Through using potential function of diatomic molecules put forward by P.M.Morse and solving Shrdinger vibrating equation of diatomic molecules,discuss vibrating spectrum of diatomic molecules.The result shows that P.M.Morse's potential function includes the first non-harmonic term of vibration of diatomic molecule and well reflects the situation of vibration of diatomic molecules.It concludes the relationship of energy of dissociation and vibrating spectral constant.