Autoionisation of superexcited states in N-2 to the N2+B state

Ruiz JA; Coreno M; Erman P; Kivimaki A; Garcia EM; Prince KC; de Simone M; Rachlew E; Richter R; Riu JR; Veseth L

Chemical Physics Letters, Vol.372, No.1-2, 139-146, 2003

DOI10.1016/S0009-2614(03)00380-4 Export Citation

Autoionisation of superexcited states in N-2 to the N2+B state

Ruiz JA, Coreno M, Erman P, Kivimaki A, Garcia EM, Prince KC, de Simone M, Rachlew E, Richter R, Riu JR, Veseth L

Vibrationally resolved N-2(+) (B-X) (1-2) and (0-1) emission bands were recorded after photoexcitation of N-2 in the 20-46 eV energy range. The branching ratio between these transitions reveals strong non-Franck-Condon effects. Ab initio calculations using a configuration interaction method based on Kohn-Sham orbitals indicate that the autoionisation of certain superexcited states is responsible for some structures present in the branching ratio curve. (C) 2003 Elsevier Science B.V. All rights reserved.