X-ray spectroscopy study of ThO2 and ThF4

The structure of the X-ray photoelectron, X-ray O(F)Ka-emission spectra from ThO2 and ThF4 as well as the Auger OKLL spectra from ThO2 was studied. The spectral structure was analyzed by using fully relativistic cluster discrete variational calculations of the electronic structure of the ThO8 D4h) a...

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Main Authors: Teterin Anton Yu., Ryzhkov Mikhail V., Teterin Yury A., Kurmaev Ernst Z., Maslakov Konstantin I., Ivanov Kirill E., Fedorenko Victor V., Elohina Lyudmila V.
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2010-01-01
Series:Nuclear Technology and Radiation Protection
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-3994/2010/1451-39941001008T.pdf
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author Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Kurmaev Ernst Z.
Maslakov Konstantin I.
Ivanov Kirill E.
Fedorenko Victor V.
Elohina Lyudmila V.
author_facet Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Kurmaev Ernst Z.
Maslakov Konstantin I.
Ivanov Kirill E.
Fedorenko Victor V.
Elohina Lyudmila V.
author_sort Teterin Anton Yu.
collection DOAJ
description The structure of the X-ray photoelectron, X-ray O(F)Ka-emission spectra from ThO2 and ThF4 as well as the Auger OKLL spectra from ThO2 was studied. The spectral structure was analyzed by using fully relativistic cluster discrete variational calculations of the electronic structure of the ThO8 D4h) and ThF8 (C2) clusters reflecting thorium close environment in solid ThO2 and ThF4. As a result it was theoretically found and experimentally confirmed that during the chemical bond formation the filled O(F)2p electronic states are distributed mainly in the binding energy range of the outer valence molecular orbitals from 0-13 eV, while the filled O(F)2s electronic states - in the binding energy range of the inner valence molecular orbitals from 13-35 eV. It was shown that the Auger OKLL spectral structure from ThO2 characterizes not only the O2p electronic state density distribution, but also the O2s electronic state density distribution. It agrees with the suggestion that O2s electrons participate in formation of the inner valence molecular orbitals, in the binding energy range of 13-35 eV. The relative Auger OKL2-3L2-3 peak intensity was shown to reflect quantitatively the O2p electronic state density of the oxygen ion in ThO2.
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spelling doaj.art-b5c35da9629c4513968f2d69e5f3e1052022-12-22T00:09:00ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942010-01-0125181210.2298/NTRP1001008TX-ray spectroscopy study of ThO2 and ThF4Teterin Anton Yu.Ryzhkov Mikhail V.Teterin Yury A.Kurmaev Ernst Z.Maslakov Konstantin I.Ivanov Kirill E.Fedorenko Victor V.Elohina Lyudmila V.The structure of the X-ray photoelectron, X-ray O(F)Ka-emission spectra from ThO2 and ThF4 as well as the Auger OKLL spectra from ThO2 was studied. The spectral structure was analyzed by using fully relativistic cluster discrete variational calculations of the electronic structure of the ThO8 D4h) and ThF8 (C2) clusters reflecting thorium close environment in solid ThO2 and ThF4. As a result it was theoretically found and experimentally confirmed that during the chemical bond formation the filled O(F)2p electronic states are distributed mainly in the binding energy range of the outer valence molecular orbitals from 0-13 eV, while the filled O(F)2s electronic states - in the binding energy range of the inner valence molecular orbitals from 13-35 eV. It was shown that the Auger OKLL spectral structure from ThO2 characterizes not only the O2p electronic state density distribution, but also the O2s electronic state density distribution. It agrees with the suggestion that O2s electrons participate in formation of the inner valence molecular orbitals, in the binding energy range of 13-35 eV. The relative Auger OKL2-3L2-3 peak intensity was shown to reflect quantitatively the O2p electronic state density of the oxygen ion in ThO2.http://www.doiserbia.nb.rs/img/doi/1451-3994/2010/1451-39941001008T.pdfX-ray photoelectron spectrathorium oxidethorium tetrafluorideouter and inner valence molecular orbitals
spellingShingle Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Kurmaev Ernst Z.
Maslakov Konstantin I.
Ivanov Kirill E.
Fedorenko Victor V.
Elohina Lyudmila V.
X-ray spectroscopy study of ThO2 and ThF4
Nuclear Technology and Radiation Protection
X-ray photoelectron spectra
thorium oxide
thorium tetrafluoride
outer and inner valence molecular orbitals
title X-ray spectroscopy study of ThO2 and ThF4
title_full X-ray spectroscopy study of ThO2 and ThF4
title_fullStr X-ray spectroscopy study of ThO2 and ThF4
title_full_unstemmed X-ray spectroscopy study of ThO2 and ThF4
title_short X-ray spectroscopy study of ThO2 and ThF4
title_sort x ray spectroscopy study of tho2 and thf4
topic X-ray photoelectron spectra
thorium oxide
thorium tetrafluoride
outer and inner valence molecular orbitals
url http://www.doiserbia.nb.rs/img/doi/1451-3994/2010/1451-39941001008T.pdf
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