Non-scrambling of hydrogen in NH4+(H2O)3 clusters |
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| Authors: | K. Hansen,A. E. K. Sundé n,K. Stø chkel,S. Brø ndsted Nielsen,B. Dynefors |
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| Affiliation: | Center for Joint Quantum Studies, Department of Physics, Tianjin University, Tianjin 300072 China.; Department of Physics, University of Gothenburg, 41296 Gothenburg Sweden.; Department of Physics, University of Gothenburg, 41296 Gothenburg Sweden ; Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C Denmark ; Chalmers University of Technology, 41296 Gothenburg Sweden |
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| Abstract: | We have measured the metastable decay of protonated, ammonia-doped, deuterated water clusters produced in an electrospray source, dn-NH4+(H2O)3, n = 0–6. The mass spectra show a very strong odd–even effect, consistent with a low degree of scrambling of the hydrogen bound to water and to the ammonia. The relative evaporation rate constant for light water was almost twice the one for heavy water, with the rate for mixed protium–deuterium water molecule intermediate between these two values.We have measured the metastable decay of protonated, ammonia-doped, deuterated water clusters produced in an electrospray source, dn-NH4+(H2O)3, n = 0–6. |
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