高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (5): 782.

• 论文 • 上一篇    下一篇

密度泛函理论和从头算方法对四唑负离子的比较研究

陈兆旭, 肖鹤鸣   

  1. 南京理工大学化学系, 南京 210094
  • 出版日期:1999-05-24 发布日期:1999-05-24
  • 通讯作者: 肖鹤鸣
  • 作者简介:陈兆旭,男,36岁,博士研究生.
  • 基金资助:

    国防科工委兵器科技预研基金(批准号:YJ96046)资助课题

Comparative Investigation of the Structure and IR of Tetrazolate Ion with Density Functional Theory and MP2 Ab initio Methods

CHEN Zhao-Xu, XIAO He-Ming   

  1. Department of Chemistry, Nanjing University of Science and Technology, Nanjing, 210094
  • Online:1999-05-24 Published:1999-05-24

摘要: 运用多种密度泛函理论(DFT)方法和从头算(abinitio)方法研究了四唑负离子的分子几何、电子结构、红外光谱和热力学性质.结果表明,B3LYP-DFT法与MP2-abinitio法计算结果较吻合,故可用于对四唑衍生物及其配合物的系统研究.

关键词: 密度泛函理论, 从头算, 四唑负离子, 分子几何, IR光谱, 热力学性质

Abstract: Anumber of DFTmethods were used to calculate the geometry, electronic structure, IRand thermodynamic properties of tetrazolate ion. Comparisons were made between the DFT computed results and the MP2 ab initio ones. Compared with the ab initio results, it was found that the hybrid DFT method: B3LYP, has the best performance in calculating all these properties than the other DFT methods. Therefore, it can be used for systematic investigation of tetrazole derivatives and their complexes.

Key words: Density functional theory, Ab initio, Tetrazolate ion, IR spectra, Thermodynamic properties

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