摘要
利用Guasian94程序和QCISD/6-311++G方法得到He-HF和He-FH两种线性平衡结构,计算出了这两种弱结合分子的结构参数、离解能和二阶力常数。在此基础上,利用多体项展式方法导出He-HF(X1Σ+)体系的分析势能函数,得到的势能面准确地再现了He-HF和He-FH两种线性结构。
Two kinds of the equilibrium struetures, linear HeHF and heFH, have been optimized, and force constants for two kinds of the complexes have been calculated using the Guassian 94 program with QCISD/6-311++G method. Analytical potential energy function for HeHF( X 1∑ +) has been derived using many-body expansion method based on the result before.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1999年第1期57-62,共6页
Journal of Atomic and Molecular Physics
关键词
分析势能函数
平衡结构
氦-氟化氢体系
He-HF ab initio calculation Many-body exponsion theory Analytical potential energy function