中文摘要：

采用QCISD（T）/Aug-CC-pVTZ方法计算优化了ArH＋离子基态X1Σ＋的离子结构和离解能.并用最小二乘法拟合Murrell-Sorbie函数得出相应的势能函数表达式,由此计算的振转常数与实验光谱数据符合得很好.

英文摘要：

The structure and dissociation energy of the ground state of ArH＋ are calculated using QCISD（T）/ Aug-CC-pVTZ method. Based on the theory of atomic and molecular statics,the reasonable dissociation limit for the ground state （1Σ＋） of ArH＋ is derived. The potential energy curve and relevant optical constants of this state are obtained by least square fitting to the Murrell-Sorbie function. All calculation results are in good agreement with the experimental data.