高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 263.

• 研究论文 • 上一篇    下一篇

SinPm+(n+m=5)结构和稳定性的理论研究

王素凡1,2, 封继康1, 孙家钟1, 高振2, 孔繁敖2   

  1. 1. 吉林大学理论化学研究所, 理论化学计算国家重点实验室, 长春 130023;
    2. 中国科学院化学研究所分子反应动力学国家重点实验室, 北京 100080
  • 收稿日期:2000-09-08 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 封继康(1938年出生),男,教授,博士生导师,从事理论化学研究.E-mail:JikangF@yahoo.com E-mail:JikangF@yahoo.com
  • 基金资助:

    国家自然科学基金(批准号:29890210)资助

Quantum Chemical Investigation of Geometry and Stability of Silicon-Phosphorous Clusters SinPm+(n+m=5)

WANG Su-Fan1,2, FENG Ji-Kang1, SUN Chia-Chung1, GAO Zhen2, KONG Fan-Ao2   

  1. 1. State Key Laboratory of Theoretical and Comp utational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China;
    2. State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2000-09-08 Online:2002-02-24 Published:2002-02-24

摘要: 在实验的基础上,利用量子化学方法对SinPm+(n+m=5)的各种可能构型进行几何构型优化,预测各团簇的稳定结构,从中得出各个团簇稳定构型之间的基本关系,当n>m时,团簇的稳定构型与Sin+相似,而当n<m时,团簇的稳定构型与Pm+相似.

关键词: 硅磷二元团簇, 几何构型, 电子结构

Abstract: On the basis of the relative experiment, the possible geometrical structures and relative stability of silicon-phosphorous clusters SinPm+(n+m =5) are explored by means of density functional theory (DFT) quantum chemical calculations(B3LYP/631G*). The effects of polarization functions and electron correlation are included in these calculations. As a result, the stability regularity of the SinPm+ cluster is obtained, that is, when n>m , the most stable structure of the clusters is similar to Sin+, otherwise, it is similar to Pm+.

Key words: Silicon-phosphorous binary clusters, Geometry, Electronic structure

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