EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂
EPR spectra of CH₃, CH₂D, CHD₂, and CD₃ radicals have been observed in H₂ matrix in the temperature range 1.6-4.2 K. The radicals were obtained by condensation on a cold substrate of two gas flows: deuterium mixed with 2 mol % methane passed through a discharge and pure hydrogen avoiding the dischar...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2003 |
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| Sprache: | Englisch |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2003
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ / Yu.A. Dmitriev R.A. Zhitnikov // Физика низких температур. — 2003. — Т. 29, № 6. — С. 695-698. — Бібліогр.: 12 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862536591990325248 |
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| author | Dmitriev, Yu.A. Zhitnikov, R.A. |
| author_facet | Dmitriev, Yu.A. Zhitnikov, R.A. |
| citation_txt | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ / Yu.A. Dmitriev R.A. Zhitnikov // Физика низких температур. — 2003. — Т. 29, № 6. — С. 695-698. — Бібліогр.: 12 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | EPR spectra of CH₃, CH₂D, CHD₂, and CD₃ radicals have been observed in H₂ matrix in the temperature range 1.6-4.2 K. The radicals were obtained by condensation on a cold substrate of two gas flows: deuterium mixed with 2 mol % methane passed through a discharge and pure hydrogen avoiding the discharge. The CD₃ and CHD₂ spectra were found to be a superposition of two spectra: high-temperature and low-temperature. A transformation of the shape of CD₃ and CHD₂ spectrum with decreasing sample temperature was observed. This is attributed to a change in the populations of the lowest rotational states of the radicals. Compared to known results for deuterated methyl radicals in Ar, the present observations suggest an existence of a hindering barrier for the radical rotation in solid H₂.
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| first_indexed | 2025-11-24T11:38:28Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-128863 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-24T11:38:28Z |
| publishDate | 2003 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Dmitriev, Yu.A. Zhitnikov, R.A. 2018-01-14T10:56:42Z 2018-01-14T10:56:42Z 2003 EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ / Yu.A. Dmitriev R.A. Zhitnikov // Физика низких температур. — 2003. — Т. 29, № 6. — С. 695-698. — Бібліогр.: 12 назв. — англ. 0132-6414 PACS: 32.30.-r, 76.30.-v https://nasplib.isofts.kiev.ua/handle/123456789/128863 EPR spectra of CH₃, CH₂D, CHD₂, and CD₃ radicals have been observed in H₂ matrix in the temperature range 1.6-4.2 K. The radicals were obtained by condensation on a cold substrate of two gas flows: deuterium mixed with 2 mol % methane passed through a discharge and pure hydrogen avoiding the discharge. The CD₃ and CHD₂ spectra were found to be a superposition of two spectra: high-temperature and low-temperature. A transformation of the shape of CD₃ and CHD₂ spectrum with decreasing sample temperature was observed. This is attributed to a change in the populations of the lowest rotational states of the radicals. Compared to known results for deuterated methyl radicals in Ar, the present observations suggest an existence of a hindering barrier for the radical rotation in solid H₂. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур 3-й Международный семинар по физике низких температур в условиях микрогравитации EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ Article published earlier |
| spellingShingle | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ Dmitriev, Yu.A. Zhitnikov, R.A. 3-й Международный семинар по физике низких температур в условиях микрогравитации |
| title | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ |
| title_full | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ |
| title_fullStr | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ |
| title_full_unstemmed | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ |
| title_short | EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ |
| title_sort | epr spectra and rotation of ch₃, ch₂d, chd₂, and cd₃ radicals in solid h₂ |
| topic | 3-й Международный семинар по физике низких температур в условиях микрогравитации |
| topic_facet | 3-й Международный семинар по физике низких температур в условиях микрогравитации |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/128863 |
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