Infrared spectroscopy of solid normal hydrogen doped with CH3F and O2 at 4.2 K: CH3F:O2 complex and CH3F migration

Автор(и)

  • L. Abouaf-Marguin Laboratoire de Physique Moléculaire pour l’Atmosphère et l’Astrophysique, Université Pierre et Marie Curie-Paris 6, CNRS UMR7092, Paris F-75005, France
  • A.-M. Vasserot Laboratoire de Physique Moléculaire pour l’Atmosphère et l’Astrophysique, Université Pierre et Marie Curie-Paris 6, CNRS UMR7092, Paris F-75005, France

DOI (Low Temperature Physics):


https://doi.org/10.1063/1.3593297

Ключові слова:

matrix isolation, solid hydrogen, CH3F:O2 complex, nuclear spin conversion, infrared spectroscopy.

Анотація

Double doping of solid normal hydrogen with CH3F and O2 at about 4.2 K gives evidence of (ortho-H2)n:CH3F clusters and of O2:CH3F complex formation. A FTIR analysis of the time evolution of the spectra, in the ν3 C–F stretching mode region, points out a behavior of the clusters very different from that of (ortho-H2)n:H2O clusters. The main point is the observation of CH3F molecules migration in solid para-H2 at 4.2 K, which is a behavior different from H2O in identical experimental conditions. This is proved by the increase with time of the CH3F:O2 complex integrated intensity with a rate constant K = 2.7(2) ∙10–4 s–1.

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Опубліковано

2011-02-28

Як цитувати

(1)
L. Abouaf-Marguin and A.-M. Vasserot, Infrared spectroscopy of solid normal hydrogen doped with CH3F and O2 at 4.2 K: CH3F:O2 complex and CH3F migration, Low Temp. Phys. 37, (2011) [Fiz. Nizk. Temp. 37, 456-462, (2011)] DOI: https://doi.org/10.1063/1.3593297.

Номер

Том 37 № 4 (2011)

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