化学学报 ›› 1996, Vol. 54 ›› Issue (3): 261-265. 上一篇    下一篇

研究论文

三原子分子振转激发态成簇现象理论研究

谢军楷;谢代前;田安民;鄢国森   

  1. 四川大学化学系
  • 发布日期:1996-03-15

Theoritical studies of clustering rovibrational energy levels in the highly excited H~2O molecule

XIE JUNKAI;XIE DAIQIAN;TIAN ANMIN;YAN GUOSEN   

  • Published:1996-03-15

在只考虑弯曲振动与总角动量的耦合,而冻结伸缩振动的模型下,采用Jacobi多项式作为弯曲振动的基函数,用严格的变分法研究了H~2O分子的振转激发态的成簇现象。本文计算了H~2O分子的振转能级和函数,研究了振动激发态下转动高激发态中出现的成簇态。

关键词: 函数, 量子力学, 变分法, 三原子分子, 水分子, 国家教委高等学校博士学科点专项科研基金, 振转激发态, 临界态, 成簇现象, 振转能级

The clustering of rovibrational energy levels in the highly excited H~2O molecule has been investigated by using a variational procedure and the bending-rotation Hamiltion in which the radial cooridates are fixed to their equilibrium values. This clustring effects begins with thecritical value of total angular momentum J~c, which for H~2O is 26. The appearance of four-fold clusters of energy levels as consequence of molecular geometry stabilization is predicted. This clustering structure has not been brokendown in the excited vibrational states.

Key words: FUNCTION, QUANTUM MECHANICS, VARIATIONAL METHOD, TRIATOMIC MOLECULE, CRITICAL STATE

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