高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (1): 49.

• 研究论文 • 上一篇    下一篇

三卤化硼的相对论赝势ab initio研究

马忠新, 李西平, 戴树珊   

  1. 云南大学化学系
  • 收稿日期:1988-04-12 出版日期:1990-01-24 发布日期:1990-01-24
  • 通讯作者: 马忠新
  • 基金资助:

    国家自然科学基金

Relativistic Pseudopotential Ab Initio Study of Boron Halides

Ma Zhongxin, Li Xiping, Dai Shushan   

  1. Department of Chemistry, Yunnan University, Kunming
  • Received:1988-04-12 Online:1990-01-24 Published:1990-01-24

摘要: 用相对论赝势abinitio优化BX3(X=F、Cl、Br、I)系列分子的几何构型,系统地研究了BX3系列电子结构的变化规律。发现由BF3至BI3σ成键作用逐渐减弱,π成健(p-π反馈键)作用逐渐增强。用单电子S-O算符微扰法计算了BX3的旋-轨分裂,并根据Koopmans定理重新指定光电子能谱。

关键词: 三卤化硼, 相对论赝势, 旋-轨分裂, 光电子能谱

Abstract: The relativistic effective core potential ab initio was presented for boron halides BX3(X=F, Cl, Br, I). The optimized geometries were obtained, and it is found that the σ-bonding decreases and π-bonding increases by degrees from BF3 to BI3. Using one-electron S-Ooperator method, the photo-electron spectra of BX3 were reassigned.

Key words: Boron halide, Relativisttc pseudopotential, Spin-orbit splitting, Photoelectron spectroscopy [PES]

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