ValenceRydberg electronic states of N2: spectroscopy and spinorbit couplings

M Hochlaf (1) , H Ndome (2)

1 IMRB - Institut Mondor de Recherche Biomédicale
2 Faculté de Chimie

Using an ab initio methodology, we compute the potential energy curves and the spinorbit coupling integrals of the N 2 electronic states located in the 0-120000 cm -1 energy domaine. In our analysis, we focus mostly on those located outside the Franck-Condon regio n accessible from the ground state of N 2 i.e. the two strongly bound states 1 3 Σ g - and 1 1 Γ g, and the weakly bound state 2 3 Σ g -, in addition to several repulsive states. We characterize them spectroscopically and we compute their spin-orbit couplings to the close lying singlets, triplets and quintets. This work completes our knowledge on the electronic states of N 2 that may be important intermediates during N + N collisions and for the dynamics of the N 2 singlets and triplets and quintets VUV photodissociation.

Mots clés: Physical Sciences

M Hochlaf, H Ndome. ValenceRydberg electronic states of N2: spectroscopy and spinorbit couplings. Journal of Physics B: Atomic, Molecular and Optical Physics, 2010, 43 (24), pp.245101. ⟨10.1088/0953-4075/43/24/245101⟩. ⟨hal-00580349⟩