In situ photolysis of CD3i in solid orthodeuterium

Mizuho Fushitani, Yuki Miyamoto, Hiromichi Hoshina, Takamasa Momose

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Photochemical reactions of molecules in solid orthodeuterium (o-D 2) have been studied by high-resolution infrared spectroscopy and compared with previous results obtained in solid parahydrogen (p-H2). Ultraviolet photolysis of CD3I molecules in solid o-D2 yielded CD3 radicals and iodine atoms efficiently, which indicates a small cage effect in solid o-D2, as in the case of solid p-H 2. The Fourier transform infrared spectrum of the ν3 vibrational band of CD3 showed a rotational structure with additional splitting due to crystal field interactions. The magnetic dipole transition (2P1/22P3/2) of the I atom isolated in solid o-D2 was observed together with a strong rotational satellite of deuterium molecules through the electron-roton coupling in solid hydrogen. The tunneling reaction between CD3 and D2 was not observed in a time scale of a few days, which gives the upper limit of the tunneling reaction rate of 10-8 s-1 at 4.2 K.

Original languageEnglish
Pages (from-to)12629-12634
Number of pages6
JournalJournal of Physical Chemistry A
Volume111
Issue number49
DOIs
Publication statusPublished - Dec 13 2007
Externally publishedYes

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Photolysis
photolysis
Molecules
molecules
rotons
Atoms
Deuterium
Photochemical reactions
magnetic dipoles
Iodine
photochemical reactions
iodine
Reaction rates
crystal field theory
atoms
deuterium
Hydrogen
Infrared spectroscopy
Fourier transforms
reaction kinetics

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

In situ photolysis of CD3i in solid orthodeuterium. / Fushitani, Mizuho; Miyamoto, Yuki; Hoshina, Hiromichi; Momose, Takamasa.

In: Journal of Physical Chemistry A, Vol. 111, No. 49, 13.12.2007, p. 12629-12634.

Research output: Contribution to journalArticle

Fushitani, Mizuho ; Miyamoto, Yuki ; Hoshina, Hiromichi ; Momose, Takamasa. / In situ photolysis of CD3i in solid orthodeuterium. In: Journal of Physical Chemistry A. 2007 ; Vol. 111, No. 49. pp. 12629-12634.
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