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

✍ Scribed by Yoko Kawai; Satoru Yamaguchi; Yoshiki Okada; Kazuo Takeuchi; Yusuke Yamauchi; Shiho Ozawa; Hiromi Nakai

• Book ID: 104108375
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 172 KB
• Volume: 377
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)01095-9

✦ Synopsis

Reaction cross sections for the reactions of protonated water clusters, H þ (H 2 O) n (n ¼ 1-6) with dimethylsulfoxide (DMSO) were measured at the collision energy of 0.1 eV. The cross section at n ¼ 2, which was found to be twice as large as that at n ¼ 4, showed a possibility of direct proton transfer process. The proton is likely to transfer directly from H þ (H 2 O) 2 to DMSO without forming an intermediate complex because of the larger proton affinity of DMSO than that of water dimer.