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

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, , Citation S Martin et al 2015 J. Phys.: Conf. Ser. 635 032080



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.

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