Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon
Mobile F atoms react with NH₃ molecules in an argon matrix at temperatures T=7–35 K. The open-shell NH₂–HF complex was observed by EPR and infrared spectroscopies as the main product of this reaction. The hyperfine constants of the NH₂–HF complex aN=1.20 mT, aH=2.40 mT, and aF=0.70 mT were determine...
Saved in:
| Published in: | Физика низких температур |
|---|---|
| Date: | 2000 |
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2000
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/129220 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon / Eugenii Ya. Misochko, Ilya U. Goldschleger, Alexander V. Akimov, Charles A. Wight // Физика низких температур. — 2000. — Т. 26, № 9-10. — С. 981-991. — Бібліогр.: 43 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862580212664893440 |
|---|---|
| author | Misochko, Eugenii Ya. Goldschleger, Ilya U. Akimov, Alexander V. Wight, Charles A. |
| author_facet | Misochko, Eugenii Ya. Goldschleger, Ilya U. Akimov, Alexander V. Wight, Charles A. |
| citation_txt | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon / Eugenii Ya. Misochko, Ilya U. Goldschleger, Alexander V. Akimov, Charles A. Wight // Физика низких температур. — 2000. — Т. 26, № 9-10. — С. 981-991. — Бібліогр.: 43 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | Mobile F atoms react with NH₃ molecules in an argon matrix at temperatures T=7–35 K. The open-shell NH₂–HF complex was observed by EPR and infrared spectroscopies as the main product of this reaction. The hyperfine constants of the NH₂–HF complex aN=1.20 mT, aH=2.40 mT, and aF=0.70 mT were determined from the EPR spectra of samples using NH₃, ¹⁵NH₃ and ND₃ isotopomers. Prominent features of the infrared spectrum of NH₂–HF are a strongly red-shifted HF stretching mode (Δv≈−720 cm−1(Δv≈−720 cm⁻¹ relative to that for isolated HF) and strong absorptions at 791 and 798 cm−1798 cm⁻¹ attributed to HF librational modes in the complex. Quantum chemistry calculations reveal that the hydrogen-bonded NH₂–HF complex has a planar C₂v structure and a binding energy of 51 kJ/mol. Calculated hyperfine constants and vibrational frequencies of the complex are in good agreement with those observed in the EPR and IR experiments.
|
| first_indexed | 2025-11-26T19:10:01Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-129220 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-26T19:10:01Z |
| publishDate | 2000 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Misochko, Eugenii Ya. Goldschleger, Ilya U. Akimov, Alexander V. Wight, Charles A. 2018-01-17T19:58:03Z 2018-01-17T19:58:03Z 2000 Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon / Eugenii Ya. Misochko, Ilya U. Goldschleger, Alexander V. Akimov, Charles A. Wight // Физика низких температур. — 2000. — Т. 26, № 9-10. — С. 981-991. — Бібліогр.: 43 назв. — англ. 0132-6414 PACS: 82.30.Cf https://nasplib.isofts.kiev.ua/handle/123456789/129220 Mobile F atoms react with NH₃ molecules in an argon matrix at temperatures T=7–35 K. The open-shell NH₂–HF complex was observed by EPR and infrared spectroscopies as the main product of this reaction. The hyperfine constants of the NH₂–HF complex aN=1.20 mT, aH=2.40 mT, and aF=0.70 mT were determined from the EPR spectra of samples using NH₃, ¹⁵NH₃ and ND₃ isotopomers. Prominent features of the infrared spectrum of NH₂–HF are a strongly red-shifted HF stretching mode (Δv≈−720 cm−1(Δv≈−720 cm⁻¹ relative to that for isolated HF) and strong absorptions at 791 and 798 cm−1798 cm⁻¹ attributed to HF librational modes in the complex. Quantum chemistry calculations reveal that the hydrogen-bonded NH₂–HF complex has a planar C₂v structure and a binding energy of 51 kJ/mol. Calculated hyperfine constants and vibrational frequencies of the complex are in good agreement with those observed in the EPR and IR experiments. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Low-Temperature Physics and Chemistry in Cryomatrice Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon Article published earlier |
| spellingShingle | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon Misochko, Eugenii Ya. Goldschleger, Ilya U. Akimov, Alexander V. Wight, Charles A. Low-Temperature Physics and Chemistry in Cryomatrice |
| title | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon |
| title_full | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon |
| title_fullStr | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon |
| title_full_unstemmed | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon |
| title_short | Infrared and EPR spectroscopic study of open-shell reactive intermediates: F + NH₃ in solid argon |
| title_sort | infrared and epr spectroscopic study of open-shell reactive intermediates: f + nh₃ in solid argon |
| topic | Low-Temperature Physics and Chemistry in Cryomatrice |
| topic_facet | Low-Temperature Physics and Chemistry in Cryomatrice |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/129220 |
| work_keys_str_mv | AT misochkoeugeniiya infraredandeprspectroscopicstudyofopenshellreactiveintermediatesfnh3insolidargon AT goldschlegerilyau infraredandeprspectroscopicstudyofopenshellreactiveintermediatesfnh3insolidargon AT akimovalexanderv infraredandeprspectroscopicstudyofopenshellreactiveintermediatesfnh3insolidargon AT wightcharlesa infraredandeprspectroscopicstudyofopenshellreactiveintermediatesfnh3insolidargon |