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author:

陆春海 (陆春海.) [1] | 陈文凯 (陈文凯.) [2] | 廖俊生 (廖俊生.) [3] | 王怀胜 (王怀胜.) [4] | 汪小琳 (汪小琳.) [5] | 孙颖 (孙颖.) [6]

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CQVIP PKU CSCD

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%.

Keyword:

DFT方法 几何构型 振动基频 氘代甲烷 物性 量子化学

Community:

  • [ 1 ] 中国工程物理研究院,四川,绵阳,621900
  • [ 2 ] 福州大学化学系,福建,福州,360002

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Source :

计算物理

ISSN: 1001-246X

Year: 2003

Issue: 1

Volume: 20

Page: 88-90

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 3

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