用能量自洽法研究碱金属双原子分子的势能曲线

用能量自洽法(ECM)研究了碱金属双原子分子一些电子激发态的势能曲线：Na₂ 分子的2¹Π_g，4³Π_g和b³Π< sub>u电子激发态，K₂分子的a³Σ^＋_{u，2¹Πg，B¹Πu和A^{关键词： 能量自洽 双原子分子 势能 碱金属}}

STUDY ON THE POTENTIAL ENERGY CURVES OF ALKALI DIATOMIC MOLECULES WITH ENERGY CO NSISTENT METHOD

The studies on the potential energy curves of the electronic excited states 21Π_g, 4³Π_g, b³Π_u of Na₂, the states a³Σ⁺_u, 2¹ Π_g, B¹Π_u, A¹Σ⁺u of K₂ and the state 1¹Π_g of Cs ₂ molecules by using the energy consistent method (ECM) are reported here . The results show that the present ECM potentials agree very well with the know n Rydberg-Klein-Rees data or the inverted perturbation approach data, and that they are much better than other analytical potentials such as the Morse and the Huxley-Murrell-Sorbie potentials for the electronic excited states of alkali dia tomic molecules.