改进的三维分离变量表象方法计算振动光谱

来源 :化学物理学报 | 被引量 : 0次 | 上传用户:psty2006
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用改进的三维分离变量表象(DVR3D)方法研究了基态电子态H2S和H2O的振动光谱.哈密顿形式在Jacobi坐标下给出,每个坐标都用一组DVR基函数表示.角度部分的DVR基组选择勒让德多项式形式,而径向坐标采用正弦函数形式.为了降低需要对角化的最终哈密顿矩阵的维数,采用连续对角化截断方法.用H2S和H2O振动能级的计算验证算法的正确性.
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