Symmetry forbidden vibronic transitions near the S K edge excitation of the SF6 molecule

29th International Conference on Photonic, Electronic, and Atomic Collisions

Gomes, A.H.A.^1 ; Oliveira, R.R.^2 ; Rocha, A.B.^3 ; Wolff, W.^3 ; Alcantara, K.F.^3 ; Sigaud, G.M.^3 ; Santos, A.C.F.^1

Institute de Física, Universidade Federal Do Rio de Janeiro, PO 68528, Rio de Janeiro, RJ

21941-972, Brazil^1

Instituto de Química Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, Bloco A, RJ, Rio de Janeiro, CT

CEP 21941-909, Brazil^2

In Memorian, Brazil^3

关键词: Atomic fluorine;    Energy ranges;    Incident photon energy;    Mass spectra;    Photoion yields;    Sulfur K-edge;    Vi-bronic transitions;    X ray photons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112026/pdf
DOI  :  10.1088/1742-6596/635/11/112026

来源: IOP

【 摘 要 】

Near sulfur K edge photoionization of the SF6, molecule has been studied for X-ray photons. Total and partial photoion yields for the fragmentation products have been recorded as a function of the incident photon energy. The atomic fluorine ion, F+, dominates the mass spectra in the energy range studied in this paper. The intensity of absorption for the dipole-forbidden but vibronically allowed transition S K (1a1g→6a1g) was calculated for the first time. This transition is shown to play a part in the fragmentation profile.