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  • Öjekull, Jenny,1973Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg (author)

Dissociative recombination of H+(H2O)3 and D+(D2O)3 water cluster ions with electrons: Cross sections and branching ratios

  • Article/chapterEnglish2007

Publisher, publication year, extent ...

  • AIP Publishing,2007

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  • LIBRIS-ID:oai:gup.ub.gu.se/64511
  • https://gup.ub.gu.se/publication/64511URI
  • https://doi.org/10.1063/1.2803901DOI
  • https://research.chalmers.se/publication/64511URI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Dissociative recombination (DR) of the water cluster ions H+(H2O)3 and D+(D2O)3 with electrons has been studied at the heavy-ion storage ring CRYRING (Manne Siegbahn Laboratory, Stockholm University). For the first time, absolute DR cross sections have been measured for H+(H2O)3 in the energy range of 0.001–0.8 eV, and relative cross sections have been measured for D+(D2O)3 in the energy range of 0.001–1.0 eV. The DR cross sections for H+(H2O)3 are larger than previously observed for H+(H2O)n (n=1,2), which is in agreement with the previously observed trend indicating that the DR rate coefficient increases with size of the water cluster ion. Branching ratios have been determined for the dominating product channels. Dissociative recombination of H+(H2O)3 mainly results in the formation of 3H2O+H (probability of 0.95±0.05) and with a possible minor channel resulting in 2H2O+OH+H2 (0.05±0.05). The dominating channels for DR of D+(D2O)3 are 3D2O+D (0.88±0.03) and 2D2O+OD+D2 (0.09±0.02). The branching ratios are comparable to earlier DR results for H+(H2O)2 and D+(D2O)2, which gave 2X2O+X (X=H,D) with a probability of over 0.9.

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  • Andersson, Patrik U,1970Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg(Swepub:gu)xandpa (author)
  • Någård, Mats BGothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg (author)
  • Pettersson, Jan B. C.,1962Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry,University of Gothenburg(Swepub:gu)xpettj (author)
  • Markovic, Nikola,1961Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)nikola (author)
  • Derkatch, A MStockholms universitet,Stockholm University (author)
  • Neau, AStockholms universitet,Stockholm University (author)
  • Al Khalili, AStockholms universitet,Stockholm University (author)
  • Rosén, SStockholms universitet,Stockholm University (author)
  • Larsson, M.Stockholms universitet,Stockholm University (author)
  • Semaniak, JAkademia Swietokrzyska im. Jana Kochanowskiego w Kielcach (author)
  • Danared, H. (author)
  • Källberg, A (author)
  • Österdahl, F (author)
  • af Ugglas, M (author)
  • Göteborgs universitetInstitutionen för kemi (creator_code:org_t)

Related titles

  • In:The Journal of chemical physics: AIP Publishing127, s. 194301-1943090021-96061089-7690

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