Infrared-active vibron bands associated with rare gas atom dopants isolated in solid parahydrogen
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Infrared-active vibron bands associated with rare gas atom dopants isolated in solid parahydrogen
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| Creator |
Raston, P.L.
Anderson, D.T. |
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| Subject |
Quantum Crystals
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| Description |
We report high-resolution infrared absorption spectroscopic studies of the dopant-induced Q₁(0) vibron band in solid parahydrogen crystals doped with low concentrations of rare gas atoms. The frequency, lineshape, and integrated absorption coefficient for the rare gas atom-induced Q₁(0) vibron band are measured for Ne, Ar, Kr, and Xe. The observed lineshapes and peak maxima frequencies are sensitive to the H₂ vibrational dependence of the dopant-H₂ isotropic intermolecular potential. Trends observed for Ar, Kr and Xe indicate the vibrational dependence is strong enough for Xe to trap the infrared-active vibron in its first solvation shell while for Ar the vibron remains delocalized. The Ne-induced feature displays a qualitatively different lineshape which is attributed to the weak intramolecular vibrational dependence of the Ne–H₂ intermolecular potential relative to the H₂–H₂ interaction. The lineshapes of the Ar, Kr, and Xe dopant-induced Q₁(0) pure vibrational features agree well with recent first principles calculations. |
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| Date |
2017-06-16T07:29:35Z
2017-06-16T07:29:35Z 2007 |
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| Type |
Article
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| Identifier |
Infrared-active vibron bands associated with rare gas atom dopants isolated in solid parahydrogen / P.L. Raston, D.T. Anderson // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 653-660. — Бібліогр.: 44 назв. — англ.
0132-6414 PACS: 33.20.Ea; 63.50.+x; 67.80.–s http://dspace.nbuv.gov.ua/handle/123456789/121780 |
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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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