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Exploring the sub-stoichiometric behavior of plutonium mononitride

The intriguing and controversial sub-stoichiometric behavior of plutonium mononitride is investigated here using first-principles calculations combined with special quasirandom structures. It is found that NaCl-type plutonium mononitride is stable for only stoichiometric levels, and the formation en...

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Detalles Bibliográficos
Autores principales: Lai, Chao, Hu, Yin, Qiu, Ruizhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055177/
https://www.ncbi.nlm.nih.gov/pubmed/35517460
http://dx.doi.org/10.1039/d0ra00477d
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author Lai, Chao
Hu, Yin
Qiu, Ruizhi
author_facet Lai, Chao
Hu, Yin
Qiu, Ruizhi
author_sort Lai, Chao
collection PubMed
description The intriguing and controversial sub-stoichiometric behavior of plutonium mononitride is investigated here using first-principles calculations combined with special quasirandom structures. It is found that NaCl-type plutonium mononitride is stable for only stoichiometric levels, and the formation enthalpy of plutonium mononitride is in good agreement with others. By comparing with plutonium monocarbide, the main reason for the absence of sub-stoichiometric behavior is the lower N-2p orbital energy, resulting in less hybridization and weaker Pu–N bonds. The weaker Pu–N bonds cannot support the formation of vacancies.
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spelling pubmed-90551772022-05-04 Exploring the sub-stoichiometric behavior of plutonium mononitride Lai, Chao Hu, Yin Qiu, Ruizhi RSC Adv Chemistry The intriguing and controversial sub-stoichiometric behavior of plutonium mononitride is investigated here using first-principles calculations combined with special quasirandom structures. It is found that NaCl-type plutonium mononitride is stable for only stoichiometric levels, and the formation enthalpy of plutonium mononitride is in good agreement with others. By comparing with plutonium monocarbide, the main reason for the absence of sub-stoichiometric behavior is the lower N-2p orbital energy, resulting in less hybridization and weaker Pu–N bonds. The weaker Pu–N bonds cannot support the formation of vacancies. The Royal Society of Chemistry 2020-06-30 /pmc/articles/PMC9055177/ /pubmed/35517460 http://dx.doi.org/10.1039/d0ra00477d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Lai, Chao
Hu, Yin
Qiu, Ruizhi
Exploring the sub-stoichiometric behavior of plutonium mononitride
title Exploring the sub-stoichiometric behavior of plutonium mononitride
title_full Exploring the sub-stoichiometric behavior of plutonium mononitride
title_fullStr Exploring the sub-stoichiometric behavior of plutonium mononitride
title_full_unstemmed Exploring the sub-stoichiometric behavior of plutonium mononitride
title_short Exploring the sub-stoichiometric behavior of plutonium mononitride
title_sort exploring the sub-stoichiometric behavior of plutonium mononitride
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9055177/
https://www.ncbi.nlm.nih.gov/pubmed/35517460
http://dx.doi.org/10.1039/d0ra00477d
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