Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example
Fine X-ray photo electron spectral (XPS) structure of uranium dioxide UO2 in the binding energy (BE) range 0-~č40 eV was associated mostly with the electrons of the outer (OVMO) (0-15 eV BE) and inner (IVMO) (15-40 eV BE) valence molecular orbitals formed from the incompletely U5f,6d,7s and O2p and...
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2004-01-01
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| Series: | Nuclear Technology and Radiation Protection |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940402003T.pdf |
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| author | Teterin Yury A. Teterin Anton Yu. |
| author_facet | Teterin Yury A. Teterin Anton Yu. |
| author_sort | Teterin Yury A. |
| collection | DOAJ |
| description | Fine X-ray photo electron spectral (XPS) structure of uranium dioxide UO2 in the binding energy (BE) range 0-~č40 eV was associated mostly with the electrons of the outer (OVMO) (0-15 eV BE) and inner (IVMO) (15-40 eV BE) valence molecular orbitals formed from the incompletely U5f,6d,7s and O2p and completely filled U6p and O2s shells of neighboring uranium and oxygen ions. It agrees with the relativistic calculation results of the electronic structure for the UO812–(Oh) cluster reflecting uranium close environment in UO2, and was confirmed by the X-ray (conversion electron, non-resonance and resonance O4,5(U) emission, near O4,5(U) edge absorption, resonance photoelectron, Auger) spectroscopy data. The fine OVMO and IVMO related XPS structure was established to yield conclusions on the degree of participation of the U6p,5f electrons in the chemical bond, uranium close environment structure and interatomic distances in oxides. Total contribution of the IVMO electrons to the covalent part of the chemical bond can be comparable with that of the OVMO electrons. It has to be noted that the IVMO formation can take place in compounds of any elements from the periodic table. It is a novel scientific fact in solid-state chemistry and physics. |
| first_indexed | 2024-12-10T10:54:09Z |
| format | Article |
| id | doaj.art-c1962f0ad191406ca3ab1472f55d3c5c |
| institution | Directory Open Access Journal |
| issn | 1451-3994 |
| language | English |
| last_indexed | 2024-12-10T10:54:09Z |
| publishDate | 2004-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-c1962f0ad191406ca3ab1472f55d3c5c2022-12-22T01:51:56ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942004-01-0119231410.2298/NTRP0402003TModern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an exampleTeterin Yury A.Teterin Anton Yu.Fine X-ray photo electron spectral (XPS) structure of uranium dioxide UO2 in the binding energy (BE) range 0-~č40 eV was associated mostly with the electrons of the outer (OVMO) (0-15 eV BE) and inner (IVMO) (15-40 eV BE) valence molecular orbitals formed from the incompletely U5f,6d,7s and O2p and completely filled U6p and O2s shells of neighboring uranium and oxygen ions. It agrees with the relativistic calculation results of the electronic structure for the UO812–(Oh) cluster reflecting uranium close environment in UO2, and was confirmed by the X-ray (conversion electron, non-resonance and resonance O4,5(U) emission, near O4,5(U) edge absorption, resonance photoelectron, Auger) spectroscopy data. The fine OVMO and IVMO related XPS structure was established to yield conclusions on the degree of participation of the U6p,5f electrons in the chemical bond, uranium close environment structure and interatomic distances in oxides. Total contribution of the IVMO electrons to the covalent part of the chemical bond can be comparable with that of the OVMO electrons. It has to be noted that the IVMO formation can take place in compounds of any elements from the periodic table. It is a novel scientific fact in solid-state chemistry and physics.http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940402003T.pdfX-ray photoelectron spectroscopyconversion electron spectroscopyX-ray emission spectraresonant X-ray emission spectraX-ray absorption spectroscopyresonant X-ray photoelectron spectroscopy |
| spellingShingle | Teterin Yury A. Teterin Anton Yu. Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example Nuclear Technology and Radiation Protection X-ray photoelectron spectroscopy conversion electron spectroscopy X-ray emission spectra resonant X-ray emission spectra X-ray absorption spectroscopy resonant X-ray photoelectron spectroscopy |
| title | Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example |
| title_full | Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example |
| title_fullStr | Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example |
| title_full_unstemmed | Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example |
| title_short | Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example |
| title_sort | modern x ray spectral methods in the study of the electronic structure of actinide compounds uranium oxide uo2 as an example |
| topic | X-ray photoelectron spectroscopy conversion electron spectroscopy X-ray emission spectra resonant X-ray emission spectra X-ray absorption spectroscopy resonant X-ray photoelectron spectroscopy |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2004/1451-39940402003T.pdf |
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