Reactions of protonated water clusters H+(H2O) n (n = 1-6) with dimethylsulfoxide in a guided ion beam apparatus

Yoko Kawai*, Satoru Yamaguchi, Yoshiki Okada, Kazuo Takeuchi, Yusuke Yamauchi, Shiho Ozawa, Hiromi Nakai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


Reaction cross sections for the reactions of protonated water clusters, H+(H2O)n (n=1-6) with dimethylsulfoxide (DMSO) were measured at the collision energy of 0.1 eV. The cross section at n=2, which was found to be twice as large as that at n=4, showed a possibility of direct proton transfer process. The proton is likely to transfer directly from H+(H2O)2 to DMSO without forming an intermediate complex because of the larger proton affinity of DMSO than that of water dimer.

Original languageEnglish
Pages (from-to)69-73
Number of pages5
JournalChemical Physics Letters
Issue number1-2
Publication statusPublished - 2003 Aug 8

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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