Effect of rotational quantum states (J=0, 1) on the tunneling reaction H2+T→H+HT in xenon—hydrogen mixtures at 77 K

✍ Scribed by Fujitani Yoshiteru; Miyazaki Tetsuo; Masaki Nobuyuki M.; Aratono Yasuyuki; Tachikawa Enzo

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 348 KB
• Volume: 214
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)85639-6

✦ Synopsis

The effect of rotational quantum states (J=O, 1) on the tunneling reaction H2 t T+ H t HT in solid Xe-HI-D2 mixtures has been studied at 77 K. When T atoms are produced by a 6Li(n, a)T reaction in xenon-hydrogen (1 mol%) mixtures, most recoil T atoms are thermalized before encountering the solute hydrogen at 1 mol% and react with H1 and D1 by tunneling to produce HT and DT. Theratio of HT to DT yields, [HT]/[DT], m the Xe-p-H2(J=O)-D2 mixturesislargerthan the [HT]/[DT] ratio in Xe-n-Hz-D, mixtures, where n-H, consists of 75% &H*(J= 1) and 25% pH,. The ratio of the rate constant for the tunneling reactio11H~(J=O)+T-HtHTtothatforthetunnelingreactionH,(J=1)tT-H+HT,i.e.k(H,(J=O)tT)/k(H~(J=1)+T), was estimated as 4 + 2 from HT yields.

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