1
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Kalinin MA, Evsiunina MV, Kalle P, Lyssenko KA, Matveev PI, Borisova NE. Small Cyclic Diglycolamides: Tautomerism, Solvent Extraction and Coordination with f-Elements: One Strain to Rule Them All. Inorg Chem 2024; 63:602-612. [PMID: 38112309 DOI: 10.1021/acs.inorgchem.3c03488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The search for new effective extractants is an important task for the management of high-level liquid waste (HLW) generated during the reprocessing of spent nuclear fuel. Here, we synthesized a series of diglycolamides with cyclic substituents for the first time. We disclosed their coordination with f-element nitrates [La(NO3)3 and UO2(NO3)2] by SC-XRD study and complexation properties toward Am(III), Ln(III), and U(VI) during solvent extraction from nitric acid solutions. Using dynamic nuclear magnetic resonance (NMR) and density functional theory (DFT) calculations, the importance of tautomerism in the extraction properties of diglycolamides was shown.
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Affiliation(s)
- Mikhail A Kalinin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia
| | - Mariia V Evsiunina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia
| | - Paulina Kalle
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Konstantin A Lyssenko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia
| | - Petr I Matveev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia
| | - Nataliya E Borisova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia
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2
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Rotermund BM, Sperling JM, Horne GP, Beck NB, Wineinger HB, Bai Z, Celis-Barros C, Gomez Martinez D, Albrecht-Schönzart TE. Co-Crystallization of Plutonium(III) and Plutonium(IV) Diglycolamides with Pu(III) and Pu(IV) Hexanitrato Anions: A Route to Redox Variants of [Pu III,IV(DGA) 3][Pu III,IV(NO 3) 6] x. Inorg Chem 2023; 62:12905-12912. [PMID: 37523261 DOI: 10.1021/acs.inorgchem.3c01590] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
N,N,N',N'-tetramethyl diglycolamide (TMDGA), a methylated variant of the diglycolamide extractants being proposed as curium holdback reagents in advanced used nuclear fuel reprocessing technologies, has been crystallized with plutonium, a transuranic actinide that has multiple accessible oxidation states. Two plutonium TMDGA complexes, [PuIII(TMDGA)3][PuIII(NO3)6] and[PuIV(TMDGA)3][PuIV(NO3)6]2·0.75MeOH, were crystallized through solvent diffusion of a reaction mixture containing plutonium(III) nitrate and TMDGA. The sample was then partially oxidized by air to yield [PuIV(TMDGA)3][PuIV(NO3)6]2·0.75MeOH. Single-crystal X-ray diffraction reveals that the multinuclear systems crystallize with hexanitrato anionic species, providing insight into the first solid-state isolation of the elusive trivalent plutonium hexanitrato species. Crystallography data show a change in geometry around the TMDGA metal center from Pu3+ to Pu4+, with the symmetry increasing approximately from C4v to D3h. These complexes provide a rare opportunity to investigate the bond metrics of plutonium in two different oxidation states with similar coordination environments. Further, these new structures provide insight into the potential chemical and structural differences arising from the radiation-induced formation of transient tetravalent curium oxidation states in used nuclear fuel reprocessing streams.
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Affiliation(s)
- Brian M Rotermund
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Joseph M Sperling
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
- Department of Chemistry and Nuclear Science and Engineering Center, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Gregory P Horne
- Center for Radiation Chemistry Research, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415, United States
| | - Nicholas B Beck
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Hannah B Wineinger
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
- Department of Chemistry and Nuclear Science and Engineering Center, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Zhuanling Bai
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Cristian Celis-Barros
- Department of Chemistry and Nuclear Science and Engineering Center, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Daniela Gomez Martinez
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Thomas E Albrecht-Schönzart
- Department of Chemistry and Nuclear Science and Engineering Center, Colorado School of Mines, Golden, Colorado 80401, United States
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3
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Peroutka AA, Galley SS, Shafer JC. Elucidating the speciation of extracted lanthanides by diglycolamides. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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4
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Wang X, Song L, Yu Q, Li Q, He L, Xiao X, Pan Q, Yang Y, Ding S. Complexation of a Nitrilotriacetate-Derived Triamide Ligand with Trivalent Lanthanides: A Thermodynamic and Crystallographic Study. Inorg Chem 2023; 62:3916-3928. [PMID: 36821293 DOI: 10.1021/acs.inorgchem.2c04311] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Non-heterocyclic N-donor nitrilotriacetate-derived triamide ligands are one of the most promising extractants for the selective extraction separation of trivalent actinides over lanthanides, but the thermodynamics and mechanism of the complexation of this kind of ligand with actinides and lanthanides are still not clear. In this work, the complexation behaviors of N,N,N',N',N″,N″-hexaethylnitrilotriacetamide (NTAamide(Et)) with four representative trivalent lanthanides (La3+, Nd3+, Eu3+, and Lu3+) were systematically investigated by using 1H nuclear magnetic resonance (1H NMR), ultraviolet-visible (UV-vis) and fluorescence spectrophotometry, microcalorimetry, and single-crystal X-ray diffractometry. 1H NMR spectroscopic titration of La3+ and Lu3+ indicates that two species of 1:2 and 1:1 metal-ligand complexes were formed in NO3- and ClO4- media. The stability constants of NTAamide(Et) with Nd3+ and Eu3+ obtained by UV-vis and fluorescence titration show that the complexing strength of NTAamide(Et) with Nd3+ is lower than that with Eu3+ in the same anionic medium, while that of the same lanthanide complex is higher in ClO4- medium than in NO3- medium. Meanwhile, the formation reactions for all metal-ligand complexes are driven by both enthalpy and entropy. The structures of lanthanide complexes in the single ClO4- and NO3- medium and the mixed one were determined to be [LnL2(MeOH)](ClO4)3 (Ln = La, Nd, Eu, and Lu), [LaL2(EtOH)2][La(NO3)6], and [LaL2(NO3)](ClO4)2, separately. The average bond lengths of lanthanide complexes decrease gradually with the decrease in ionic radii of Ln3+, indicating that heavier lanthanides form stronger complexes due to the lanthanide contraction effect, which coincides with the trend of the complexing strength obtained by spectroscopic titration. This work not only reveals the thermodynamics and mechanism of the complexation between NTAamide ligands and lanthanides but also obtains the periodic tendency of complexation between them, which may facilitate the separation of trivalent lanthanides from actinides.
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Affiliation(s)
- Xueyu Wang
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Lianjun Song
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qiao Yu
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qiuju Li
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Lanlan He
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao Xiao
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qingjiang Pan
- School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China
| | - Yanqiu Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, P. R. China
| | - Songdong Ding
- College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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5
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Kuznetsova AA, Chachkov DV, Tcarkova KV, Artyushin OI, Bondarenko NA, Vereshchagina YA. Conformational Analysis of Bis[N-alkyl-N-(2-diphenylphosphorylethyl)]amides of Diglycolic Acid. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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6
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Theoretical elucidation of rare earth extraction and separation by diglycolamides from crystal structures and DFT simulations. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2020.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Schnaars K, Kaneko M, Fujisawa K. Effect of Oxygen-Donor Charge on Adjacent Nitrogen-Donor Interactions in Eu 3+ Complexes of Mixed N,O-Donor Ligands Demonstrated on a 10-Fold [Eu(TPAMEN)] 3+ Chelate Complex. Inorg Chem 2021; 60:2477-2491. [PMID: 33502181 DOI: 10.1021/acs.inorgchem.0c03405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To reduce high-level radiotoxic waste generated by nuclear power plants, highly selective separation agents for minor actinides are mandatory. The mixed N,O-donor ligand N,N,N',N'-tetrakis[(6-carboxypyridin-2-yl)methyl]ethylenediamine (H4TPAEN; 1) has shown good performance as a masking agent in Am3+/Eu3+ separation studies. Adjustments on the pyridyl backbone to raise the hydrophilicity led to a decrease in selectivity and a decrease in M3+-Nam interactions. An enhanced basicity of the pyridyl N-donors was given as a cause. In this work, we examine whether a decrease in O-donor basicity can promote the M3+-Nam interactions. Therefore, we replace the deprotonated "charged" carboxylic acid groups of TPAEN4- by neutral amide groups and introduce N,N,N',N'-tetrakis[(6-N″,N''-diethylcarbamoylpyridin-2-yl)methyl]ethylenediamine (TPAMEN; 2) as a new ligand. TPAMEN was crystallized with Eu(OTf)3 and Eu(NO3)3·6H2O to form positively charged 1:1 [Eu(TPAMEN)]3+ complexes in the solid state. Alterations in the M-O/N bond distances are compared to [Eu(TPAEN)]- and investigated by DFT calculations to expose the differences in charge/energy density distributions at europium(III) and the donor functionalities of the TPAEN4- and TPAMEN. On the basis of estimations of the bond orders, atomic charges spin populations, and density of states in the Eu and potential Am and Cm complexes, the specific contributions of the donor-metal interaction are analyzed. The prediction of complex formation energy differences for the [M(TPAEN)]- and [M(TPAMEN)]3+ (M3+ = Eu3+, Am3+) complexes provide an outlook on the potential performance of TPAMEN in Am3+/Eu3+ separation.
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Affiliation(s)
- Kathleen Schnaars
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4, Shirakata, Tokaimura, Ibaraki 319-1195, Japan
| | - Masashi Kaneko
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, 2-4, Shirakata, Tokaimura, Ibaraki 319-1195, Japan
| | - Kiyoshi Fujisawa
- Department of Chemistry, Ibaraki University, Mito, Ibaraki 310-8512, Japan
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8
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Fan Y, Li Y, Shu X, Wu R, Chen S, Jin Y, Xu C, Chen J, Huang C, Xia C. Complexation and Separation of Trivalent Actinides and Lanthanides by a Novel DGA Derived from Macrocyclic Crown Ether: Synthesis, Extraction, and Spectroscopic and Density Functional Theory Studies. ACS OMEGA 2021; 6:2156-2166. [PMID: 33521455 PMCID: PMC7841952 DOI: 10.1021/acsomega.0c05317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
A DGA-arm-grafted macrocyclic aza-crown ether ligand (Cr6DGA) was synthesized, and its solvent extraction behavior toward trivalent americium and europium in nitric acid medium was studied. The effects of various parameters such as the contact time, temperature, concentration of the extractant, and acidity on the extraction by Cr6DGA were investigated. It was found that in 3 mol/L HNO3, the SFEu/Am value was about 2. The complexation energies calculated by DFT showed that the Eu(III) complexes were more stable than the corresponding Am(III) complexes in gas, aqueous, and organic phases. Furthermore, the coordination study showed that the metal/ligand ratio of the extracted species was 1:2 by mass spectrometry (MS) analysis. The time-resolved laser-induced fluorescence spectra (TRLFS) further proved that the extracted species contained one water molecule, and so the composition of the extracted complexes may be [EuL2NO3(H2O)]2+ or [EuL2(NO3)2(H2O)]+. Finally, DFT calculations revealed that [EuL2(NO3)2(H2O)]+ is a more stable species and the binding energy of Eu(III) with the DGA unit is lower than that with the crown unit.
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Affiliation(s)
- Yu Fan
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Youzhen Li
- Collaborative
Innovation Center of Advanced Nuclear Energy Technology, Institute
of Nuclear and New Energy Technology, Tsinghua
University, Beijing 100084, P. R. China
| | - Xi Shu
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Rulei Wu
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Shanyong Chen
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Yongdong Jin
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Chao Xu
- Collaborative
Innovation Center of Advanced Nuclear Energy Technology, Institute
of Nuclear and New Energy Technology, Tsinghua
University, Beijing 100084, P. R. China
| | - Jing Chen
- Collaborative
Innovation Center of Advanced Nuclear Energy Technology, Institute
of Nuclear and New Energy Technology, Tsinghua
University, Beijing 100084, P. R. China
| | - Chao Huang
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Chuanqin Xia
- College
of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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9
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Hall GB, Holfeltz VE, Campbell EL, Boglaienko D, Lumetta GJ, Levitskaia TG. Evolution of Acid-Dependent Am3+ and Eu3+ Organic Coordination Environment: Effects on the Extraction Efficiency. Inorg Chem 2020; 59:4453-4467. [DOI: 10.1021/acs.inorgchem.9b03612] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gabriel B. Hall
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Vanessa E. Holfeltz
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Emily L. Campbell
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Daria Boglaienko
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Gregg J. Lumetta
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
| | - Tatiana G. Levitskaia
- Nuclear Chemistry and Engineering Group, Pacific Northwest National Laboratory (PNNL), Richland, Washington 99352, United States
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10
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Wilden A, Kowalski PM, Klaß L, Kraus B, Kreft F, Modolo G, Li Y, Rothe J, Dardenne K, Geist A, Leoncini A, Huskens J, Verboom W. Unprecedented Inversion of Selectivity and Extraordinary Difference in the Complexation of Trivalent f Elements by Diastereomers of a Methylated Diglycolamide. Chemistry 2019; 25:5507-5513. [PMID: 30720905 DOI: 10.1002/chem.201806161] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/05/2019] [Indexed: 11/10/2022]
Abstract
When considering f elements, solvent extraction is primarily used for the removal of lanthanides from ore and their recycling, as well as for the separation of actinides from used nuclear fuel. Understanding the complexation mechanism of metal ions with organic extractants, particularly the influence of their molecular structure on complex formation is of fundamental importance. Herein, we report an extraordinary (up to two orders of magnitude) change in the extraction efficiency of f elements with two diastereomers of dimethyl tetraoctyl diglycolamide (Me2 -TODGA), which only differ in the orientation of a single methyl group. Solvent extraction techniques, extended X-ray absorption fine structure (EXAFS) measurements, and density functional theory (DFT) based ab initio calculations were used to understand their complex structures and to explain their complexation mechanism. We show that the huge differences observed in extraction selectivity results from a small change in the complexation of nitrate counter-ions caused by the different orientation of one methyl group in the backbone of the extractant. The obtained results give a significant new insight into metal-ligand complexation mechanisms, which will promote the development of more efficient separation techniques.
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Affiliation(s)
- Andreas Wilden
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Piotr M Kowalski
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Larissa Klaß
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Benjamin Kraus
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Fabian Kreft
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Giuseppe Modolo
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Yan Li
- Institut für Energie- und Klimaforschung-Nukleare Entsorgung, und Reaktorsicherheit- (IEK-6), Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse 1, 52428, Jülich, Germany.,JARA High-Performance Computing, Schinkelstrasse 2, 52062, Aachen, Germany
| | - Jörg Rothe
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), 76021, Karlsruhe, Germany
| | - Kathy Dardenne
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), 76021, Karlsruhe, Germany
| | - Andreas Geist
- Karlsruhe Institute of Technology (KIT), Institute for Nuclear Waste Disposal (INE), 76021, Karlsruhe, Germany
| | - Andrea Leoncini
- Laboratory of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500, AE, Enschede, The Netherlands
| | - Jurriaan Huskens
- Laboratory of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500, AE, Enschede, The Netherlands
| | - Willem Verboom
- Laboratory of Molecular Nanofabrication, Mesa+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500, AE, Enschede, The Netherlands
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11
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Onghena B, Papagni E, Souza ER, Banerjee D, Binnemans K, Vander Hoogerstraete T. Speciation of lanthanide ions in the organic phase after extraction from nitrate media by basic extractants. RSC Adv 2018; 8:32044-32054. [PMID: 30713684 PMCID: PMC6333249 DOI: 10.1039/c8ra06712k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/07/2018] [Indexed: 01/17/2023] Open
Abstract
A speciation study was carried out for lanthanide complexes formed in the organic phase after solvent extraction with quaternary ammonium and phosphonium nitrate extractants. These extractants are liquid at room temperature and were applied in their undiluted form. A comparison was made between the quaternary compound trihexyl(tetradecyl)phosphonium nitrate, the nitrate form of the commercial extractant Cyphos IL 101, and Aliquat 336 nitrate, the nitrate form of the commercial trialkylmethylammonium chloride extractant Aliquat 336 (alkyl = mixture of C8 and C10 chains). The structures of the lanthanide complexes across the entire lanthanide series (with the exception of promethium) were determined by a combination of solvent extraction techniques, FTIR, NMR, high-resolution steady-state luminescence spectroscopy, luminescence life time measurements, elemental analysis and EXAFS spectroscopy. The results suggest that the lanthanide ions form an anionic nitrate complex in the organic phase by coordinating with five bidentate nitrate ligands. Charge neutralization is provided by two counter cations of the extractant present in the outer coordination sphere of the complex. Furthermore, it is suggested that the pentanitrato complex is the sole lanthanide species that is formed in significant concentrations in the organic phase. Lanthanides are extracted to basic nitrate-based extractants, like trihexyl(tetradecyl)phosphonium nitrate, as pentanitrato lanthanide complexes.![]()
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Affiliation(s)
- Bieke Onghena
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Eleonora Papagni
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Ernesto Rezende Souza
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Dipanjan Banerjee
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
| | - Koen Binnemans
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, Bus 2402, B-3001 Heverlee, Belgium.
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12
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Campbell E, Holfeltz VE, Hall GB, Nash KL, Lumetta GJ, Levitskaia TG. Extraction Behavior of Ln(III) Ions by T2EHDGA/n-Dodecane from Nitric Acid and Sodium Nitrate Solutions. SOLVENT EXTRACTION AND ION EXCHANGE 2018. [DOI: 10.1080/07366299.2018.1447261] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Emily Campbell
- Actinide Science Team, Pacific Northwest National Laboratory, Richland, Washington
- Chemistry Department, Washington State University, Pullman, Washington
| | - Vanessa E. Holfeltz
- Actinide Science Team, Pacific Northwest National Laboratory, Richland, Washington
- School of Nuclear Science and Engineering, Oregon State University, Corvallis, OR
| | - Gabriel B. Hall
- Actinide Science Team, Pacific Northwest National Laboratory, Richland, Washington
| | - Kenneth L. Nash
- Chemistry Department, Washington State University, Pullman, Washington
| | - Gregg J. Lumetta
- Actinide Science Team, Pacific Northwest National Laboratory, Richland, Washington
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13
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Radchenko V, Mastren T, Meyer CAL, Ivanov AS, Bryantsev VS, Copping R, Denton D, Engle JW, Griswold JR, Murphy K, Wilson JJ, Owens A, Wyant L, Birnbaum ER, Fitzsimmons J, Medvedev D, Cutler CS, Mausner LF, Nortier MF, John KD, Mirzadeh S, Fassbender ME. Radiometric evaluation of diglycolamide resins for the chromatographic separation of actinium from fission product lanthanides. Talanta 2017; 175:318-324. [PMID: 28841997 DOI: 10.1016/j.talanta.2017.07.057] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 11/19/2022]
Abstract
Actinium-225 is a potential Targeted Alpha Therapy (TAT) isotope. It can be generated with high energy (≥ 100MeV) proton irradiation of thorium targets. The main challenge in the chemical recovery of 225Ac lies in the separation from thorium and many fission by-products most importantly radiolanthanides. We recently developed a separation strategy based on a combination of cation exchange and extraction chromatography to isolate and purify 225Ac. In this study, actinium and lanthanide equilibrium distribution coefficients and column elution behavior for both TODGA (N,N,N',N'-tetra-n-octyldiglycolamide) and TEHDGA (N,N,N',N'-tetrakis-2-ethylhexyldiglycolamide) were determined. Density functional theory (DFT) calculations were performed and were in agreement with experimental observations providing the foundation for understanding of the selectivity for Ac and lanthanides on different DGA (diglycolamide) based resins. The results of Gibbs energy (ΔGaq) calculations confirm significantly higher selectivity of DGA based resins for LnIII over AcIII in the presence of nitrate. DFT calculations and experimental results reveal that Ac chemistry cannot be predicted from lanthanide behavior under comparable circumstances.
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Affiliation(s)
- Valery Radchenko
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA; Life Science Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
| | - Tara Mastren
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Catherine A L Meyer
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Alexander S Ivanov
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | | - Roy Copping
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - David Denton
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Jonathan W Engle
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA; Department of Medical Physics, University of Wisconsin, Madison, WI 53705, USA
| | - Justin R Griswold
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Karen Murphy
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Justin J Wilson
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA; Department of Chemistry&Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Allison Owens
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Lance Wyant
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Eva R Birnbaum
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Jonathan Fitzsimmons
- Collider-Accelerator Department, Brookhaven National Laboratory, Bldg 801, Upton, NY 11973, USA
| | - Dmitri Medvedev
- Collider-Accelerator Department, Brookhaven National Laboratory, Bldg 801, Upton, NY 11973, USA
| | - Cathy S Cutler
- Collider-Accelerator Department, Brookhaven National Laboratory, Bldg 801, Upton, NY 11973, USA
| | - Leonard F Mausner
- Collider-Accelerator Department, Brookhaven National Laboratory, Bldg 801, Upton, NY 11973, USA
| | - Meiring F Nortier
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Kevin D John
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Saed Mirzadeh
- Nuclear Security and Isotope Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Michael E Fassbender
- Chemistry Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
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14
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Murakami S, Matsumiya M, Sasaki Y, Suzuki S, Hisamatsu S, Takao K. Investigation into Coordination States of Diglycolamide and Dioxaoctanediamide Complexes with Lanthanide Elements Using Spectroscopic Methods. SOLVENT EXTRACTION AND ION EXCHANGE 2017. [DOI: 10.1080/07366299.2017.1336049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sena Murakami
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan
| | - Masahiko Matsumiya
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan
| | - Yuji Sasaki
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Shinichi Suzuki
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Shugo Hisamatsu
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Koichiro Takao
- Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, Tokyo, Japan
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15
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Sengupta A, Bhattacharyya A, Verboom W, Ali SM, Mohapatra PK. Insight into the Complexation of Actinides and Lanthanides with Diglycolamide Derivatives: Experimental and Density Functional Theoretical Studies. J Phys Chem B 2017; 121:2640-2649. [PMID: 28257213 DOI: 10.1021/acs.jpcb.6b11222] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Extraction of actinide (Pu4+, UO22+, Am3+) and lanthanide (Eu3+) ions was carried out using different diglycolamide (DGA) ligands with systematic increase in the alkyl chain length from n-pentyl to n-dodecyl. The results show a monotonous reduction in the metal ion extraction efficiency with increasing alkyl chain length and this reduction becomes even more prominent in case of the branched alkyl (2-ethylhexyl) substituted DGA (T2EHDGA) for all the metal ions studied. Steric hindrance provided by the alkyl groups has a strong influence in controlling the extraction behavior of the DGAs. The distribution ratio reduction factor, defined as the ratio of the distribution ratio values of different DGAs to that of T2EHDGA, in n-dodecane follows the order UO22+ > Pu4+ > Eu3+ > Am3+. Complexation of Nd3+ was carried out with the DGAs in methanol by carrying out UV-vis spectrophotometric titrations. The results indicate a significant enhancement in the complexation constants upon going from methyl to n-pentyl substituted DGAs. They decreased significantly for DGAs containing alkyl substituents beyond the n-pentyl group, which corresponds to the observed trend from the solvent extraction studies. DFT-based calculations were performed on the free and the Nd3+ complexes of the DGAs both in the gas and the solvent (methanol) phase and the results were compared the experimental observations. Luminescence spectroscopic investigations were carried out to understand the complexation of Eu3+ with the DGA ligands and to correlate the nature of the alkyl substituents on the photophysical properties of the Eu(III)-DGA complexes. The monoexponential nature of the decay profiles of the complex revealed the predominant presence of single species, while no water molecules were present in the inner coordination sphere of the Eu3+ ion.
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Affiliation(s)
- Arijit Sengupta
- Radiochemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | | | - Willem Verboom
- Laboratory of Molecular Nanofabrication, MESA+ Institute for Nanotechnology, University of Twente , P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Sk Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Prasanta K Mohapatra
- Radiochemistry Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
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16
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Kou F, Yang S, Zhang L, Teat SJ, Tian G. Complexation of Ho(III) with tetraalkyl-diglycolamide in aqueous solutions and a solid state compared in organic solutions of solvent extraction. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.06.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Kaneko M, Watanabe M, Matsumura T. The separation mechanism of Am(iii) from Eu(iii) by diglycolamide and nitrilotriacetamide extraction reagents using DFT calculations. Dalton Trans 2016; 45:17530-17537. [DOI: 10.1039/c6dt03002e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
DFT calculated stabilization energies reproduced the experimental separation behavior of Am3+ from Eu3+ using diglycolamide and nitrilotriacetamide ligands.
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Affiliation(s)
- Masashi Kaneko
- Nuclear Science and Engineering Center
- Japan Atomic Energy Agency
- Japan
| | - Masayuki Watanabe
- Nuclear Science and Engineering Center
- Japan Atomic Energy Agency
- Japan
| | - Tatsuro Matsumura
- Nuclear Science and Engineering Center
- Japan Atomic Energy Agency
- Japan
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18
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Kou F, Yang S, Qian H, Zhang L, Beavers CM, Teat SJ, Tian G. A fluorescence study on the complexation of Sm(iii), Eu(iii) and Tb(iii) with tetraalkyldiglycolamides (TRDGA) in aqueous solution, in solid state, and in solvent extraction. Dalton Trans 2016; 45:18484-18493. [DOI: 10.1039/c6dt02930b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trivalent lanthanide ions form 1 : 1, 1 : 2, and 1 : 3 complexes with tridentate ligand TMDGA in 1 M H/NaNO3 and form 1 : 3 extracted complexes with DMDODGA during solvent extraction.
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Affiliation(s)
- Fei Kou
- Radiochemistry Department
- China Institute of Atomic Chemistry
- Beijing 102413
- China
| | - Suliang Yang
- Radiochemistry Department
- China Institute of Atomic Chemistry
- Beijing 102413
- China
| | - Hongjuan Qian
- Radiochemistry Department
- China Institute of Atomic Chemistry
- Beijing 102413
- China
| | - Lihua Zhang
- Radiochemistry Department
- China Institute of Atomic Chemistry
- Beijing 102413
- China
| | | | - Simon J. Teat
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Guoxin Tian
- Radiochemistry Department
- China Institute of Atomic Chemistry
- Beijing 102413
- China
- Nuclear Chemical Engineering Department
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19
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Okumura S, Kawasaki T, Sasaki Y, Ikeda Y. Crystal Structures of Lanthanoid(III) (Ln(III), Ln = Tb, Dy, Ho, Er, Tm, Yb, and Lu) Nitrate Complexes with N,N,N′,N′-Tetraethyldiglycolamide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20140139] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Shin Okumura
- Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
| | - Takeshi Kawasaki
- Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
| | | | - Yasuhisa Ikeda
- Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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20
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Ali MC, Kawasaki T, Suzuki T, Sasaki Y, Ikeda Y. Syntheses and crystal structures of Eu(III) and Sm(III) perrhenate complexes with 2,2′-(imino)bis( N,N′-diethylacetamide). J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2014.915770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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