Abstract
The laser-induced fluorescence excitation spectrum of jet-cooled NiF has been studied in the range 435–570 nm. Eight electronic transitions, involving four high-lying Π components and two lower states, the ground state X2Π3/2, and the low-lying state [0.25]2Σ, respectively, have been recorded. Two new Π components are identified for the first time and their rotational constants are determined. The [20.4]Π3/2 component is assigned as the v′=1 level of the previously known [19.7]2Π3/2 state. The [20.3]Π3/2 component may be linked to the component of an unreported quartet state. The previously reported [20.0]2Π1/2 component is reassigned as a subcomponent of 2Δ.
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