Valence electronic state density in thorium dioxide

This work analyses the fine low energy (0-40 eV) X-ray photoelectron spectra of ThO2, taking into account relativistic Xα-discrete variation electronic structure calculations for the ThO8 (D4h) cluster reflecting thorium's close environment in ThO2. As a result, it was theoretically shown and e...

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Main Authors: Teterin Anton Yu., Ryzhkov Mikhail V., Teterin Yury A., Vukčević Labud, Terekhov Vladimir A., Maslakov Konstantin I., Ivanov Kirill E.
Format: Article
Language:English
Published: VINCA Institute of Nuclear Sciences 2008-01-01
Series:Nuclear Technology and Radiation Protection
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1451-3994/2008/1451-39940802034T.pdf
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author Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Vukčević Labud
Terekhov Vladimir A.
Maslakov Konstantin I.
Ivanov Kirill E.
author_facet Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Vukčević Labud
Terekhov Vladimir A.
Maslakov Konstantin I.
Ivanov Kirill E.
author_sort Teterin Anton Yu.
collection DOAJ
description This work analyses the fine low energy (0-40 eV) X-ray photoelectron spectra of ThO2, taking into account relativistic Xα-discrete variation electronic structure calculations for the ThO8 (D4h) cluster reflecting thorium's close environment in ThO2. As a result, it was theoretically shown and experimentally confirmed that Th5f electrons in ThO2 can participate directly (~0.6 Th5f electrons) in chemical bond formation.Th6p electrons were shown to be a significant part (~0.44 Th6p electrons) not only of inner valence molecular orbitals, but to play a significant role in outer valence molecular orbitals formation, as well. Inner valence molecular orbitals composition and sequent order were established to belong to the binding energy range of 13 eV to 40 eV. The valence electronic state density in the range of 0-40 eV in ThO2 was also calculated. For the first time, these data allowed an interpretation of the fine X-ray photoelectron spectra (0-40 eV) and high resolution O4,5(Th) X-ray emition spectral structure (~60 - ~85 eV) of ThO2.
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spelling doaj.art-ff98f84d5a2c4ab589bfe7c5f646772a2022-12-21T23:17:36ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39942008-01-01232344210.2298/NTRP0802034TValence electronic state density in thorium dioxideTeterin Anton Yu.Ryzhkov Mikhail V.Teterin Yury A.Vukčević LabudTerekhov Vladimir A.Maslakov Konstantin I.Ivanov Kirill E.This work analyses the fine low energy (0-40 eV) X-ray photoelectron spectra of ThO2, taking into account relativistic Xα-discrete variation electronic structure calculations for the ThO8 (D4h) cluster reflecting thorium's close environment in ThO2. As a result, it was theoretically shown and experimentally confirmed that Th5f electrons in ThO2 can participate directly (~0.6 Th5f electrons) in chemical bond formation.Th6p electrons were shown to be a significant part (~0.44 Th6p electrons) not only of inner valence molecular orbitals, but to play a significant role in outer valence molecular orbitals formation, as well. Inner valence molecular orbitals composition and sequent order were established to belong to the binding energy range of 13 eV to 40 eV. The valence electronic state density in the range of 0-40 eV in ThO2 was also calculated. For the first time, these data allowed an interpretation of the fine X-ray photoelectron spectra (0-40 eV) and high resolution O4,5(Th) X-ray emition spectral structure (~60 - ~85 eV) of ThO2.http://www.doiserbia.nb.rs/img/doi/1451-3994/2008/1451-39940802034T.pdfX-ray photoelectron spectrathorium oxideouter and inner valence molecular orbitals
spellingShingle Teterin Anton Yu.
Ryzhkov Mikhail V.
Teterin Yury A.
Vukčević Labud
Terekhov Vladimir A.
Maslakov Konstantin I.
Ivanov Kirill E.
Valence electronic state density in thorium dioxide
Nuclear Technology and Radiation Protection
X-ray photoelectron spectra
thorium oxide
outer and inner valence molecular orbitals
title Valence electronic state density in thorium dioxide
title_full Valence electronic state density in thorium dioxide
title_fullStr Valence electronic state density in thorium dioxide
title_full_unstemmed Valence electronic state density in thorium dioxide
title_short Valence electronic state density in thorium dioxide
title_sort valence electronic state density in thorium dioxide
topic X-ray photoelectron spectra
thorium oxide
outer and inner valence molecular orbitals
url http://www.doiserbia.nb.rs/img/doi/1451-3994/2008/1451-39940802034T.pdf
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AT ryzhkovmikhailv valenceelectronicstatedensityinthoriumdioxide
AT teterinyurya valenceelectronicstatedensityinthoriumdioxide
AT vukceviclabud valenceelectronicstatedensityinthoriumdioxide
AT terekhovvladimira valenceelectronicstatedensityinthoriumdioxide
AT maslakovkonstantini valenceelectronicstatedensityinthoriumdioxide
AT ivanovkirille valenceelectronicstatedensityinthoriumdioxide