Rotational analysis of selected bands from the electronic spectrum of the LuF molecule

Abstract

Rotational analysis of 20 selected bands from the electronic spectrum of the LuF molecule has been carried out. No perturbation was detected; the molecular constants deduced from a 'direct approach' including all the bands are given for the fundamental state X 1 Σ (ω e = 611.79, B e = 0.26764) and the excited states A 1 Σ (ω e = 587.95, B e = 0.26356), B 1 Π (ω e = 581.3, B e = 0.2632), E 1 Π (ω e = 543.42, B e = 0.25647), and F 1 Σ (ω e = 560.8, B e = 0.25815).