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Abstract:
用HF/6-31G**、密度泛函方法B3LYP/31G**、二级微扰MP2/6-31G**、四级微扰MP4/6-31G**、方法对甲烷和氘代甲烷进行几何构型全优化,并将优化的结果与实验值进行比较.用上述4种方法对甲烷和氘代甲烷分子进行分子的振动基频计算.密度泛函、二级微扰、四级微扰优于HF/6-31G**,尤其是密度泛函、四级微扰方法.密度泛函方法所用的机时远小于微扰方法.不同方法计算所得的氘代甲烷振动频率值与实验值的最大误差为10.4%,最小误差为2.0%.
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计算物理
ISSN: 1001-246X
CN: 11-2011/O4
Year: 2003
Issue: 1
Volume: 20
Page: 88-90
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
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