Singlet and triplet states dissociation of doubly charged HDO, H2O and D2O as a function of internal energy

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

Martin, S.^1 ; Chen, L.^1 ; Brédy, R.^1 ; Bernard, J.^1 ; Cassimi, A.^2

Institut Lumière Matière, UMR5306 Université Lyon 1, CNRS, Université de Lyon, Villeurbanne Cedex

69622, France^1

CIMAP, GANIL Université de Caen, Bd. H. Becquerel, Caen, France^2

关键词: Dissociation channels;    Doubly charged ions;    Internal energies;    Isotopic ratios;    Singlet and triplet state;    Singlet excited state;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032080/pdf
DOI  :  10.1088/1742-6596/635/3/032080

来源: IOP

【 摘 要 】

The fragmentation of HDO2+, H2O2+and D2O2+is reported as a function of the excitation energy. The doubly charged ions were prepared selectively to triplet or singlet excited states in collisions with F+and H+at 3 keV, respectively. For HDO2+the isotopic ratio, ratio of probabilities for the two dissociation channels OD+- H+over OH+- D+, was estimated to be 4.5 ± 0.8 using H+and 3.8 ± 0.8 using F+projectiles. Results are compared with recent calculations.