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由Ar~+和Kr~+激光激励的Pb_2光谱已被广泛地研究了。由于实验条件不同结果也不一致,且光谱符号也不统一。本文采用的光谱符号基本与Bondybey相同。Pb_2分子的基态为X~1∑_g~+,所确定的电子激发态为F~Ⅱ_u态。
The Pb 2 spectrum excited by Ar ~ + and Kr ~ + lasers has been extensively studied. Due to different experimental conditions, the results are not consistent, and the spectral symbols are not uniform. The spectral notation used here is basically the same as Bondybey. The ground state of Pb_2 molecule is X ~ 1Σ_g ~ +, and the determined electron excited state is F ~ Ⅱ_u state.