用莫尔斯势对双原子分子振动光谱的理论研究  

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

作　　者：杨国春[1] 陈世浩[1] 

机构地区：[1]东北师范大学物理系,吉林长春130024

出　　处：《东北师大学报（自然科学版）》2004年第1期50-54,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：吉林省科技发展计划项目(20020615)

摘　　要：　通过用莫尔斯提出的双原子分子势函数,求解双原子分子振动的薛定谔方程,讨论了双原子分子振动光谱.结果表明,莫尔斯势包含双原子分子振动的一级非谐性质,它能够较好地反映双原子分子振动情况.得出了离解能与振动光谱常数之间的关系.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.

关 键 词：分子势函数 非谐性 莫尔斯势 离解能 

分 类 号：O561.3[理学—原子与分子物理]