Spectroscopy of the Radiation-Induced Intermediates Resulting from Phosphine Irradiation in Inert Matrices: Anionic Species.
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| Title: | Spectroscopy of the Radiation-Induced Intermediates Resulting from Phosphine Irradiation in Inert Matrices: Anionic Species. |
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| Authors: | Panfutov, O. D.1 (AUTHOR), Shiryaeva, E. S.1 (AUTHOR), Tyurin, D. A.1 (AUTHOR), Feldman, V. I.1 (AUTHOR) feldman@rad.chem.msu.ru |
| Source: | High Energy Chemistry. Apr2025, Vol. 59 Issue 2, p180-185. 6p. |
| Subjects: | Radiation chemistry, Matrix isolation, Electron capture, Frequencies of oscillating systems, Vibrational spectra |
| Abstract: | Phosphine (PH3) is one of the key inorganic molecules resulting from various biogenic compounds in the Earth and planetary atmospheres. The action of ionizing radiation on phosphine molecules may lead to the formation of charged species, the characteristics of which are poorly studied. In this work, vibrational spectra of isolated and PH–• anions stabilized in the X-ray irradiated PH3/Ne and PH3/Ar mixtures at 4.5 K were experimentally obtained and assigned for the first time. The results show that the frequencies of the P–H stretching vibrations in anionic species are red‑shifted in respect to the vibration frequencies of the corresponding neutral molecules or radicals, indicating a weakening of the P−H bonds as a result of electron capture. Based on the analysis of the structure of the PH–• absorption bands in a neon matrix, it was suggested that this anion can result from two different mechanisms: the capture of thermalized electrons by PH...H2 pairs stabilized in the same cage, and the dissociative capture of "hot" electrons by phosphine molecules. [ABSTRACT FROM AUTHOR] |
| Copyright of High Energy Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185134710 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Spectroscopy of the Radiation-Induced Intermediates Resulting from Phosphine Irradiation in Inert Matrices: Anionic Species. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Panfutov%2C+O%2E+D%2E%22">Panfutov, O. D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shiryaeva%2C+E%2E+S%2E%22">Shiryaeva, E. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tyurin%2C+D%2E+A%2E%22">Tyurin, D. A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Feldman%2C+V%2E+I%2E%22">Feldman, V. I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> feldman@rad.chem.msu.ru</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22High+Energy+Chemistry%22">High Energy Chemistry</searchLink>. Apr2025, Vol. 59 Issue 2, p180-185. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radiation+chemistry%22">Radiation chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Matrix+isolation%22">Matrix isolation</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+capture%22">Electron capture</searchLink><br /><searchLink fieldCode="DE" term="%22Frequencies+of+oscillating+systems%22">Frequencies of oscillating systems</searchLink><br /><searchLink fieldCode="DE" term="%22Vibrational+spectra%22">Vibrational spectra</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Phosphine (PH3) is one of the key inorganic molecules resulting from various biogenic compounds in the Earth and planetary atmospheres. The action of ionizing radiation on phosphine molecules may lead to the formation of charged species, the characteristics of which are poorly studied. In this work, vibrational spectra of isolated and PH–• anions stabilized in the X-ray irradiated PH3/Ne and PH3/Ar mixtures at 4.5 K were experimentally obtained and assigned for the first time. The results show that the frequencies of the P–H stretching vibrations in anionic species are red‑shifted in respect to the vibration frequencies of the corresponding neutral molecules or radicals, indicating a weakening of the P−H bonds as a result of electron capture. Based on the analysis of the structure of the PH–• absorption bands in a neon matrix, it was suggested that this anion can result from two different mechanisms: the capture of thermalized electrons by PH...H2 pairs stabilized in the same cage, and the dissociative capture of "hot" electrons by phosphine molecules. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of High Energy Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S0018143924701704 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 180 Subjects: – SubjectFull: Radiation chemistry Type: general – SubjectFull: Matrix isolation Type: general – SubjectFull: Electron capture Type: general – SubjectFull: Frequencies of oscillating systems Type: general – SubjectFull: Vibrational spectra Type: general Titles: – TitleFull: Spectroscopy of the Radiation-Induced Intermediates Resulting from Phosphine Irradiation in Inert Matrices: Anionic Species. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Panfutov, O. D. – PersonEntity: Name: NameFull: Shiryaeva, E. S. – PersonEntity: Name: NameFull: Tyurin, D. A. – PersonEntity: Name: NameFull: Feldman, V. I. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00181439 Numbering: – Type: volume Value: 59 – Type: issue Value: 2 Titles: – TitleFull: High Energy Chemistry Type: main |
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