The vibrational structure and partially resolved rotational structure of these two states have been obtained via selected vibration-rotational lev- els of A~(-1) A_2 state and a~(-3) A_2 state respectively as an intermediate resonance level.

• 另外,选择以A~1A_2态的某单振转能级为中间共振能级,到达了与上三重态对应的单重态~1A_2(n,3p_x)。 对这两个态的振动光谱和部分可分辨的转动光谱分别进行了分析和归属。