化学学报 ›› 1995, Vol. 53 ›› Issue (8): 745-750. 上一篇    下一篇

研究论文

PH2^+基态及低激发态的构型优化及光谱性质理论研究

洪新纪;文振翼   

  1. 西北大学现代物理研究所
  • 发布日期:1995-08-15

Equilibrium geometries and spectroscopic properties of several low-lying electronic states of PH^2

HONG XINJI;WEN ZHENYI   

  • Published:1995-08-15

本文报道了PH2^+的一组新的ab initio计算结果。给出了PH2^+的基态(X^1A1)及几个低激发态的电子结构和几何构型。这些态的稳定构型都是在MRSD CI水平上优化得到的。在此基础上, 确定了基态到这些低激发态的跃迁能和部分跃迁的振子强度和辐射寿命。

关键词: 电子结构, 从头计算法, 磷化物, 几何异构, 电子光谱

In this paper, equilibrium geometries of the ground and several low excited electronic states of PH^2 are obtained by the MRSD CI level calculation. Based on MRSD CI energies and wavefunctions, Triplet-Singlet spliting, oscillation strength and radiative lifetime of some transitions are determined. It displays that the equilibrium geometries obtained are more accurate and reliable than earlier reports, and the Triplet-Singlet spliting is consistent with the experimental quantities.

Key words: ELECTRONIC STRUCTURE, AB INITIO CALCULATION, PHOSPHIDE, GEOMETRICAL ISOMERISM, ELECTRONIC SPECTROSCOPY

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