EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
EPR spectra and rotation of CH₃, CH₂D, CHD₂, and CD₃ radicals in solid H₂
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| Creator |
Dmitriev, Yu.A.
Zhitnikov, R.A. |
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| Subject |
3-й Международный семинар по физике низких температур в условиях микрогравитации
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| 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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| Date |
2018-01-14T10:56:42Z
2018-01-14T10:56:42Z 2003 |
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| Type |
Article
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| Identifier |
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 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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