Probing the subtle differences between promethium and curium

Abstract Curium and promethium share similar chemical and physical properties thereby complicating their separation. Co-located processing at Oak Ridge National Laboratory results in curium contamination of the fission product stream containing promethium. To gain insight into the difficulty of this...

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Main Authors: Trenton B. Vogt, Megan E. Simms, Connor J. Parker, April J. Miller, Laetitia H. Delmau, Richard T. Mayes, Samantha K. Cary, Alyssa N. Gaiser, Cristian Celis-Barros, Frankie D. White
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-58209-3
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author Trenton B. Vogt
Megan E. Simms
Connor J. Parker
April J. Miller
Laetitia H. Delmau
Richard T. Mayes
Samantha K. Cary
Alyssa N. Gaiser
Cristian Celis-Barros
Frankie D. White
author_facet Trenton B. Vogt
Megan E. Simms
Connor J. Parker
April J. Miller
Laetitia H. Delmau
Richard T. Mayes
Samantha K. Cary
Alyssa N. Gaiser
Cristian Celis-Barros
Frankie D. White
author_sort Trenton B. Vogt
collection DOAJ
description Abstract Curium and promethium share similar chemical and physical properties thereby complicating their separation. Co-located processing at Oak Ridge National Laboratory results in curium contamination of the fission product stream containing promethium. To gain insight into the difficulty of this separation, the fundamental properties of these elements are experimentally and computationally probed in a 2,2’:6’,2”-terpyridine crystal system. Analysis of the isostructural compounds via single crystal X-ray diffraction and quantum theory of atoms in molecules reveals that bonding between promethium and curium is quite similar in this particular structure type. The small differences in the analysis of these two elements in this isostructural series sheds light on the difficulty required to separate the elements from each other. More so, this study develops the fundamental chemistries of two rare elements in the solid state and experimentally portrays the often-omitted position of promethium within the lanthanide series.
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spelling doaj-art-c60cce8a162f4209968181de1968b23a2025-08-20T01:54:25ZengNature PortfolioNature Communications2041-17232025-04-011611610.1038/s41467-025-58209-3Probing the subtle differences between promethium and curiumTrenton B. Vogt0Megan E. Simms1Connor J. Parker2April J. Miller3Laetitia H. Delmau4Richard T. Mayes5Samantha K. Cary6Alyssa N. Gaiser7Cristian Celis-Barros8Frankie D. White9Department of Chemistry, Michigan State UniversityRadioisotope Science and Technology Division, Oak Ridge National LaboratoryRadioisotope Science and Technology Division, Oak Ridge National LaboratoryRadioisotope Science and Technology Division, Oak Ridge National LaboratoryRadioisotope Science and Technology Division, Oak Ridge National LaboratoryNuclear Energy and Fuel Cycle Division, Oak Ridge National LaboratoryRadioisotope Science and Technology Division, Oak Ridge National LaboratoryDepartment of Chemistry, Michigan State UniversityRadioisotope Science and Technology Division, Oak Ridge National LaboratoryRadioisotope Science and Technology Division, Oak Ridge National LaboratoryAbstract Curium and promethium share similar chemical and physical properties thereby complicating their separation. Co-located processing at Oak Ridge National Laboratory results in curium contamination of the fission product stream containing promethium. To gain insight into the difficulty of this separation, the fundamental properties of these elements are experimentally and computationally probed in a 2,2’:6’,2”-terpyridine crystal system. Analysis of the isostructural compounds via single crystal X-ray diffraction and quantum theory of atoms in molecules reveals that bonding between promethium and curium is quite similar in this particular structure type. The small differences in the analysis of these two elements in this isostructural series sheds light on the difficulty required to separate the elements from each other. More so, this study develops the fundamental chemistries of two rare elements in the solid state and experimentally portrays the often-omitted position of promethium within the lanthanide series.https://doi.org/10.1038/s41467-025-58209-3
spellingShingle Trenton B. Vogt
Megan E. Simms
Connor J. Parker
April J. Miller
Laetitia H. Delmau
Richard T. Mayes
Samantha K. Cary
Alyssa N. Gaiser
Cristian Celis-Barros
Frankie D. White
Probing the subtle differences between promethium and curium
Nature Communications
title Probing the subtle differences between promethium and curium
title_full Probing the subtle differences between promethium and curium
title_fullStr Probing the subtle differences between promethium and curium
title_full_unstemmed Probing the subtle differences between promethium and curium
title_short Probing the subtle differences between promethium and curium
title_sort probing the subtle differences between promethium and curium
url https://doi.org/10.1038/s41467-025-58209-3
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