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...
Збережено в:
| Дата: | 2003 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2003
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/128863 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1288632018-01-15T03:02:59Z 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 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. 2003 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/128863 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
3-й Международный семинар по физике низких температур в условиях микрогравитации 3-й Международный семинар по физике низких температур в условиях микрогравитации |
| spellingShingle |
3-й Международный семинар по физике низких температур в условиях микрогравитации 3-й Международный семинар по физике низких температур в условиях микрогравитации Dmitriev, Yu.A. Zhitnikov, R.A. EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂ 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. |
| format |
Article |
| author |
Dmitriev, Yu.A. Zhitnikov, R.A. |
| author_facet |
Dmitriev, Yu.A. Zhitnikov, R.A. |
| author_sort |
Dmitriev, Yu.A. |
| title |
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_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_sort |
epr spectra and rotation of ch₃, ch₂d, chd₂, and cd₃ radicals in solid h₂ |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2003 |
| topic_facet |
3-й Международный семинар по физике низких температур в условиях микрогравитации |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/128863 |
| 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. |
| series |
Физика низких температур |
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AT dmitrievyua eprspectraandrotationofch3ch2dchd2andcd3radicalsinsolidh2 AT zhitnikovra eprspectraandrotationofch3ch2dchd2andcd3radicalsinsolidh2 |
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2023-10-18T20:56:19Z |
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2023-10-18T20:56:19Z |
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