Configuration interaction studies on the spectroscopic properties of PbO including spin–orbit coupling
Luo Wang1, 2, Li Rui1, †, 
, Gai Zhiqiang3, Ai RuiBo1, Zhang Hongmin1, Zhang Xiaomei2, 4, Yan Bing2, 4, ‡,
, Gai Zhiqiang3, Ai RuiBo1, Zhang Hongmin1, Zhang Xiaomei2, 4, Yan Bing2, 4, ‡, The calculated PECs of the low-lying Λ-S electronic states of PbO employing the MRCI+
