High resolution laser spectroscopy of the B 1Π− X 1∑+ transition of 23Na39K, and the perturbation between the B 1Π and c 3∑+ states
1990; American Institute of Physics; Volume: 93; Issue: 4 Linguagem: Inglês
10.1063/1.459056
ISSN1520-9032
AutoresHajime Katô, Mina Sakano, Naoki Yoshie, Masaaki Baba, Kiyoshi Ishikawa,
Tópico(s)Advanced Chemical Physics Studies
ResumoThe Doppler-free laser polarization spectrum of the B1Π −X1∑+ transition of 23Na39K was measured, and the molecular constants of the B1Π state of v=0∼16 were determined. The perturbation between the B1Π(v=8) and the c3∑+(v=22) levels at small J were studied in detail. By comparing the observed line intensities of the B1Π(v=16, J=14) −X1∑+(v″=0∼50, J=13 and 15) transition with the calculated Franck–Condon factors, the dependence of the transition dipole moment on the internuclear distance was determined. Absolute vibrational numbering of the c3∑+ state was done by comparing the calculated Franck–Condon factors with the observed line intensities of the c3∑+ −a3∑+ transition.
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