Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 39, Issue 7, Pages 1701-1710Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/39/7/012
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Measurements of the fragmentation of deuterium tagged water molecules, namely HDO, by fast proton and F7+ impact exhibit a very strong isotopic preference for cleavage of the OH bond over the OD bond. Explicitly, the former is about five times more likely than the latter for HDO2+ dissociation. HDO+ exhibits similar behaviour, though the asymmetry is smaller at about a factor of 2. Wave-packet propagation calculations are in good agreement with the measured branching ratio for HDO2+ dissociation.
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