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Bn(n=2-8)团簇结构和稳定性的密度泛函理论研究

曹欣伟 姜振益 薛瑞波

原子与分子物理学报Issue(6):902-908,7.
原子与分子物理学报Issue(6):902-908,7.DOI:10.3969/j.issn.1000-0364.2014.06.009

Bn(n=2-8)团簇结构和稳定性的密度泛函理论研究

Density functional theory study on structure and stability of Bn (n=2-8) clusters

曹欣伟 1姜振益 2薛瑞波3

作者信息

  • 1. 西安文理学院物理与机械电子工程学院,西安710065
  • 2. 西北大学现代物理研究所,西安 710069
  • 3. 西北大学现代物理研究所,西安 710069
  • 折叠

摘要

Abstract

Density Functional Theory (DFT) with B3LYP method at 6-31G*level was used to study the geom-etries and vibrational frequencies of Bn ( n=2-8) clusters.Our results showed that most structures of Bn micro-clusters are planar forms, only a handful of three-dimensional structures are stable ground state structures. Planar configurations contain chain-like and ring-like forms.The chain-like structure is that all atoms are in same planar, and bonds of chain’ s ends are short than middle’ s.All of ring-like stable structures are n-1 atoms a-round one atom in a circle.It that the clusters of n as odd number are more stable than others is found by calcu-lating an average of the ground state binding energy of atoms and the second difference.

关键词

硼团簇/密度泛函理论/几何结构与稳定性

Key words

B cluster/DFT/Geometric structure and stability

分类

化学化工

引用本文复制引用

曹欣伟,姜振益,薛瑞波..Bn(n=2-8)团簇结构和稳定性的密度泛函理论研究[J].原子与分子物理学报,2014,(6):902-908,7.

基金项目

西安市科技计划项目 ()

原子与分子物理学报

OA北大核心CSCD

1000-0364

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