The Visible Emission Spectrum of BiF

The visible band system of BiF has been reinvestigated both under low and high dispersion.The vibrational analysis of the system has been considerably extended to include about 65 bands in the region (λ5000-5700A). From a rotational analysis of four bands (2,0), (1,4), (2,5), and (3,3) the constants of the upper v'=2 and 3 and lower v'=4 and 5 levels have been newly determined