Rotational analysis of the system B1 --1 +of gaseous ScF

Abstract
The rotational analysis of four bands has been carried out. The upper state BlΠ shows large Λ-doubling which increases systematically from v = 3 to v = 0, and which is in the sense to require either a 1Σ- state or possibly the 0- component of a 3Σ+ state with T0 < 10 000 cm-1.