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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577522000200
|2 doi
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|a pubmed25n1125.xml
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|a (DE-627)NLM337853444
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|a (NLM)35254293
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Carter, Korey P
|e verfasserin
|4 aut
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|a In situ beam reduction of Pu(IV) and Bk(IV) as a route to trivalent transuranic coordination complexes with hydroxypyridinone chelators
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 09.03.2022
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|a Date Revised 24.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a open access.
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|a The solution-state interactions of plutonium and berkelium with the octadentate chelator 3,4,3-LI(1,2-HOPO) (343-HOPO) were investigated and characterized by X-ray absorption spectroscopy, which revealed in situ reductive decomposition of the tetravalent species of both actinide metals to yield Pu(III) and Bk(III) coordination complexes. X-ray absorption near-edge structure (XANES) measurements were the first indication of in situ synchrotron redox chemistry as the Pu threshold and white-line position energies for Pu-343-HOPO were in good agreement with known diagnostic Pu(III) species, whereas Bk-343-HOPO results were found to mirror the XANES behavior of Bk(III)-DTPA. Extended X-ray absorption fine structure results revealed An-OHOPO bond distances of 2.498 (5) and 2.415 (2) Å for Pu and Bk, respectively, which match well with bond distances obtained for trivalent actinides and 343-HOPO via density functional theory calculations. Pu(III)- and Bk(III)-343-HOPO data also provide initial insight into actinide periodicity as they can be compared with previous results with Am(III)-, Cm(III)-, Cf(III)-, and Es(III)-343-HOPO, which indicate there is likely an increase in 5f covalency and heterogeneity across the actinide series
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|a Journal Article
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|a X-ray absorption spectroscopy
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|a berkelium
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|a coordination complexes
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|a periodicity
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|a plutonium
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|a Chelating Agents
|2 NLM
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|a Coordination Complexes
|2 NLM
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|a Berkelium
|2 NLM
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|a 2YQA718KUU
|2 NLM
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|a Plutonium
|2 NLM
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|a 53023GN24M
|2 NLM
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| 700 |
1 |
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|a Wacker, Jennifer N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Smith, Kurt F
|e verfasserin
|4 aut
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|a Deblonde, Gauthier J P
|e verfasserin
|4 aut
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|a Moreau, Liane M
|e verfasserin
|4 aut
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|a Rees, Julian A
|e verfasserin
|4 aut
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|a Booth, Corwin H
|e verfasserin
|4 aut
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|a Abergel, Rebecca J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 29(2022), Pt 2 vom: 01. März, Seite 315-322
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnas
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| 773 |
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|g volume:29
|g year:2022
|g number:Pt 2
|g day:01
|g month:03
|g pages:315-322
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|u http://dx.doi.org/10.1107/S1600577522000200
|3 Volltext
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|d 29
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|h 315-322
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