[3] Herzberg G. Molecular Spectra and Molecular Structure,I. Spectra of Diatomic Molecules [M].New York: Van Nostrand Co.,1950.203.
[4] Ley-Koo E,Mateos-Cortes S,Villa-Torres G. Vibrational-rotational levels and Franck-Condon factors of diatomic molecules via morse potentials in a box [J].Int. J. Quantum Chem.,1996,58: 23-28.
[7] Zhao Guoxing,Kim J T,Bahns J T,et al. The 21Пg state of 39K2 studied by CW sub-doppier optical-optical double resonance spectroscopy [J].J. Mol. Spectr.,1997,184: 209-214.