1
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Wang H, Gao P, Cui T, Wang D, Liu J, He H, Chen Z, Jin Q, Guo Z. New asymmetric tetradentate phenanthroline chelators with pyrazole and amide groups for complexation and solvent extraction of Ln(III)/Am(III). Dalton Trans 2024; 53:601-611. [PMID: 38063670 DOI: 10.1039/d3dt03194b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
To tune the complexation and solvent extraction performance of the ligands with a 1,10-phenanthroline core for trivalent actinides (An3+) and lanthanides (Ln3+), we synthesized two new asymmetric tetradentate ligands with pyrazole and amide groups, i.e., L1 (N,N-diethyl-9-(5-ethyl-1H-pyrazol-3-yl)-1,10-phenanthroline-2-carboxamide) and its analogue L2 with longer alkyl chains (N,N-dihexyl). The complexation of the ligands with Ln3+ was confirmed by 1H NMR titration and X-ray crystallography, and stability constants were measured in methanol by spectrophotometric titration. The asymmetric ligands exhibited an improved performance in terms of selective solvent extraction of Am3+ over Eu3+ in strongly acidic solutions compared to their symmetric analogues. The improved selectivity of the asymmetric ligands was interpreted theoretically by density functional theory simulations. This study implies that combining different functional groups to construct asymmetric ligands may be an efficient way to tune ligand performance with regard to An3+ separation from Ln3+.
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Affiliation(s)
- Haolong Wang
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Pengyuan Gao
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Tengfei Cui
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Dongqi Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Jinping Liu
- Radiochemistry Department, China Institute of Atomic Energy, Beijing 102413, China
| | - Hui He
- Radiochemistry Department, China Institute of Atomic Energy, Beijing 102413, China
| | - Zongyuan Chen
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Qiang Jin
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
| | - Zhijun Guo
- Frontier Science Center for Rare Isotopes; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China.
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2
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Larrinaga WB, Cotruvo JA, Worrell BT, Eaton SS, Eaton GR. Electron Paramagnetic Resonance, Electronic Ground State, and Electron Spin Relaxation of Seven Lanthanide Ions Bound to Lanmodulin and the Bioinspired Chelator, 3,4,3-LI(1,2-HOPO). Chemistry 2023; 29:e202303215. [PMID: 37802965 DOI: 10.1002/chem.202303215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/08/2023]
Abstract
The electron paramagnetic resonance (EPR) spectra of lanthanide(III) ions besides Gd3+ , bound to small-molecule and protein chelators, are uncharacterized. Here, the EPR properties of 7 lanthanide(III) ions bound to the natural lanthanide-binding protein, lanmodulin (LanM), and the synthetic small-molecule chelator, 3,4,3-LI(1,2-HOPO) ("HOPO"), were systematically investigated. Echo-detected pulsed EPR spectra reveal intense signals from ions for which the normal continuous-wave first-derivative spectra are negligibly different from zero. Spectra of Kramers lanthanide ions Ce3+ , Nd3+ , Sm3+ , Er3+ , and Yb3+ , and non-Kramers Tb3+ and Tm3+ , bound to LanM are more similar to the ions in dilute aqueous:ethanol solution than to those coordinated with HOPO. Lanmodulins from two bacteria, with distinct metal-binding sites, had similar spectra for Tb3+ but different spectra for Nd3+ . Spin echo dephasing rates (1/Tm ) are faster for lanthanides than for most transition metals and limited detection of echoes to temperatures below ~6 to 12 K. Dephasing rates were environment dependent and decreased in the order water:ethanol>LanM>HOPO, which is attributed to decreasing librational motion. These results demonstrate that the EPR spectra and relaxation times of lanthanide(III) ions are sensitive to coordination environment, motivating wider application of these methods for characterization of both small-molecule and biomolecule interactions with lanthanides.
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Affiliation(s)
- Wyatt B Larrinaga
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, 16802, United States
| | - Joseph A Cotruvo
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, 16802, United States
| | - Brady T Worrell
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado, 80208, United States
| | - Sandra S Eaton
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado, 80208, United States
| | - Gareth R Eaton
- Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado, 80208, United States
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3
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Phipps MD, Cingoranelli S, Bhupathiraju NVSDK, Younes A, Cao M, Sanders VA, Neary MC, Daveny MH, Cutler CS, Lopez GE, Saini S, Parker CC, Fernandez SR, Lewis JS, Lapi SE, Francesconi LC, Deri MA. Sc-HOPO: A Potential Construct for Use in Radioscandium-Based Radiopharmaceuticals. Inorg Chem 2023; 62:20567-20581. [PMID: 36724083 PMCID: PMC10390652 DOI: 10.1021/acs.inorgchem.2c03931] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three isotopes of scandium─43Sc, 44Sc, and 47Sc─have attracted increasing attention as potential candidates for use in imaging and therapy, respectively, as well as for possible theranostic use as an elementally matched pair. Here, we present the octadentate chelator 3,4,3-(LI-1,2-HOPO) (or HOPO), an effective chelator for hard cations, as a potential ligand for use in radioscandium constructs with simple radiolabeling under mild conditions. HOPO forms a 1:1 Sc-HOPO complex that was fully characterized, both experimentally and theoretically. [47Sc]Sc-HOPO exhibited good stability in chemical and biological challenges over 7 days. In healthy mice, [43,47Sc]Sc-HOPO cleared the body rapidly with no signs of demetalation. HOPO is a strong candidate for use in radioscandium-based radiopharmaceuticals.
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Affiliation(s)
- Michael D Phipps
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468
- Medical Isotope Research & Production Laboratory, Collider-Accelerator Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Shelbie Cingoranelli
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | | | - Ali Younes
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
| | - Minhua Cao
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
| | - Vanessa A. Sanders
- Medical Isotope Research & Production Laboratory, Collider-Accelerator Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Michelle C. Neary
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
| | - Matthew H. Daveny
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
| | - Cathy S. Cutler
- Medical Isotope Research & Production Laboratory, Collider-Accelerator Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Gustavo E. Lopez
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468
| | - Shefali Saini
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Candace C. Parker
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Solana R. Fernandez
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Jason S. Lewis
- Program in Molecular Pharmacology and Chemistry, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Suzanne E. Lapi
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Lynn C. Francesconi
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016
- Department of Chemistry, City University of New York Hunter College, 695 Park Avenue, New York, New York 10065
| | - Melissa A. Deri
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016
- Department of Chemistry, Lehman College of the City University of New York, Bronx, NY 10468
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4
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Amoiridis A, Papanikolaou M, Vlasiou M, Bandeira NAG, Miras HN, Kabanos T, Keramidas A. Design and Modulation of Selectivity toward Vanadium(V) and Uranium(VI) Ions: Coordination Properties and Affinity of Hydroxylamino-Triazine Siderophores. Inorg Chem 2023. [PMID: 38018803 DOI: 10.1021/acs.inorgchem.3c02678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Based on the strong binding and high selectivity properties of 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5-triazine (H2bihyat) for [UVIO2]2+, novel binucleating ligands (BLs) N,N',N″,N‴-((1,4-phenylenebis(oxy))bis(1,3,5-triazine-6,2,4-triyl))tetrakis(N-methylhydroxylamine) (H4qtn), N1,N4-bis(4,6-bis(hydroxy(methyl)amino)-1,3,5-triazin-2-yl)benzene-1,4-diamine (H4pdl), and N1,N2-bis(4,6-bis(hydroxy(methyl)amino)-1,3,5-triazin-2-yl)ethane-1,2-diamine (H4enl) were synthesized. Binuclear complexes formed by coordination of hard metal ions with H4qtn are thermodynamically more stable than their mononuclear analogues with H2bihyat due to the increase in entropy accompanying the formation of more chelate rings. Reaction of either H4qtn or H4pdl or H4enl with [UVIO2]2+ and [VVO2]+ resulted in the isolation of the binuclear complexes [(UVIO2)2(μ-qtn)(H2O)4] (1), [(VVO2)2(μ-qtn)][PPh4]2[PPh4] (2), [(UVIO2)2(μ-pdl)(H2O)2(MeOH)2] (3), [(VVO2)2(μ-pdl)][PPh4]2 (4), [(UVIO2)2(μ-enl)(H2O)4] (5), and [(VVO2)2(μ-enl)][PPh4]2 (6). The binuclear complexes 1-6 were characterized by single-crystal X-ray diffraction analysis in solid state and by NMR and ESI-MS in solution. The comparison of the coordination ability of the BLs with either pyridine-2,6-dicarboxylic acid (H2dipic) or H2bihyat or CO32- toward [UVIO2]2+ and [VVO2]+ was investigated by NMR and UV-vis spectroscopies and DFT theoretical calculations, revealing a superior performance of BLs. The selectivity of the BLs for [UVIO2]2+ over [VVO2]+ is decreased compared to that of H2bihyat but increases considerably at pH > 9 values. Formation of the mixed-metal binuclear species [UVIO2(μ-O)VVO2] influences the selectivity and dynamics of the reaction of H4qtn for [UVIO2]2+ and [VVO2]+ in aqueous solution. The results of this study provide crucial information for the ligand design and the development of stronger and more selective systems.
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Affiliation(s)
| | | | - Manolis Vlasiou
- School of Veterinary Medicine, University of Nicosia, Nicosia 2414, Cyprus
| | - Nuno A G Bandeira
- Biosystems and Integrative Sciences Institute (BioISI) - Departamento de Química e Bioquímica, Faculdade de Ciências Universidade de Lisboa, 8.5.53 - C8 Campo Grande, Lisboa 1749-016, Portugal
| | | | - Themistoklis Kabanos
- Department of Chemistry, Section of Inorganic and Analytical Chemistry, University of Ioannina, Ioannina 45110, Greece
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5
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Wang Y, Mezyk SP, McLachlan JR, Grimes TS, Zalupski PR, O'Bryan HMT, Cook AR, Abergel RJ, Horne GP. Radiolytic Evaluation of 3,4,3-LI(1,2-HOPO) in Aqueous Solutions. J Phys Chem B 2023; 127:3931-3938. [PMID: 37084416 DOI: 10.1021/acs.jpcb.3c01469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
The octadentate hydroxypyridinone ligand 3,4,3-LI(1,2-HOPO) (abbreviated as HOPO) has been identified as a promising candidate for both chelation and f-element separation technologies, two applications that require optimal performance in radiation environments. However, the radiation robustness of HOPO is currently unknown. Here, we employ a combination of time-resolved (electron pulse) and steady-state (alpha self-radiolysis) irradiation techniques to elucidate the basic chemistry of HOPO and its f-element complexes in aqueous radiation environments. Chemical kinetics were measured for the reaction of HOPO and its Nd(III) ion complex ([NdIII(HOPO)]-) with key aqueous radiation-induced radical transients (eaq-, H• atom, and •OH and NO3• radicals). The reaction of HOPO with the eaq- is believed to proceed via reduction of the hydroxypyridinone moiety, while transient adduct spectra indicate that reactions with the H• atom and •OH and NO3• radicals proceeded by addition to HOPO's hydroxypyridinone rings, potentially allowing for the generation of an extensive suite of addition products. Complementary steady-state 241Am(III)-HOPO complex ([241AmIII(HOPO)]-) irradiations showed the gradual release of 241Am(III) ions with increasing alpha dose up to 100 kGy, although complete ligand destruction was not observed.
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Affiliation(s)
- Yufei Wang
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Center for Radiation Chemistry Research, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Stephen P Mezyk
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California 90804, United States
| | - Jeffrey R McLachlan
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Travis S Grimes
- Center for Radiation Chemistry Research, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Peter R Zalupski
- Center for Radiation Chemistry Research, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - Hailie M T O'Bryan
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Andrew R Cook
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Rebecca J Abergel
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gregory P Horne
- Center for Radiation Chemistry Research, Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
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6
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Grémy O, Devilliers K, Miccoli L. Chelation therapy with 3,4,3-Li(1,2-HOPO) after pulmonary exposure to plutonium in rats. Chem Biol Interact 2023; 378:110488. [PMID: 37054935 DOI: 10.1016/j.cbi.2023.110488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/15/2023]
Abstract
Internal exposure to plutonium can occur through inhalation for the nuclear worker, but also for the public if the radionuclide was released into the atmosphere in the context of a nuclear accident or terrorist attack. DieThylenetriaminePentaAcetic acid (DTPA) is currently still the only authorized chelator that can be used to decorporate internalized plutonium. The Linear HydrOxyPyridinOne-based ligand named 3,4,3-Li(1,2-HOPO) remains the most promising drug candidate to replace it in the hopes of improving chelating treatment. This study aimed to assess the efficacy of 3,4,3-Li(1,2-HOPO) in removing plutonium from rats exposed to the lungs, depending on the timing and route of treatment, and almost always compared to DTPA at a ten-fold higher dose used as a reference chelator. First, early intravenous injection or inhalation of 3,4,3-Li(1,2-HOPO) demonstrated superior efficacy over DTPA in preventing plutonium accumulation in liver and bone in rats exposed by injection or lung intubation. However, this superiority of 3,4,3-Li(1,2-HOPO) was much less pronounced with delayed treatment. In rats given plutonium in the lungs, the experiments also showed that 3,4,3-Li-HOPO reduced pulmonary retention of plutonium more effectively than DTPA only when the chelators were injected early but not at delayed times, while it was always the better of the two chelators when they were inhaled. Under our experimental conditions, the rapid oral administration of 3,4,3-Li(1,2-HOPO) was successful in preventing systemic accumulation of plutonium, but not in decreasing lung retention. Thus, after exposure to plutonium by inhalation, the best emergency treatment would be the rapid inhalation of a 3,4,3-Li(1,2-HOPO) aerosol to limit pulmonary retention of plutonium and prevent extrapulmonary deposition of plutonium in target systemic tissues.
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Affiliation(s)
- Olivier Grémy
- Laboratoire de RadioToxicologie, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université de Paris-Saclay, Bruyères-le-Châtel, France.
| | - Karine Devilliers
- Laboratoire de RadioToxicologie, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université de Paris-Saclay, Bruyères-le-Châtel, France
| | - Laurent Miccoli
- Laboratoire de RadioToxicologie, Commissariat à l'Energie Atomique et aux Energies Alternatives, Université de Paris-Saclay, Bruyères-le-Châtel, France
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7
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Wang Y, Shield KM, Abergel RJ. Hydrophilic Chelators for Aqueous Reprocessing of Spent Nuclear Fuel. SEPARATION & PURIFICATION REVIEWS 2023. [DOI: 10.1080/15422119.2023.2182220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Yufei Wang
- Department of Nuclear Engineering, University of California, Berkeley, California, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Katherine M. Shield
- Department of Nuclear Engineering, University of California, Berkeley, California, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Rebecca J. Abergel
- Department of Nuclear Engineering, University of California, Berkeley, California, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
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8
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Colliard I, Lee JRI, Colla CA, Mason HE, Sawvel AM, Zavarin M, Nyman M, Deblonde GJP. Polyoxometalates as ligands to synthesize, isolate and characterize compounds of rare isotopes on the microgram scale. Nat Chem 2022; 14:1357-1366. [PMID: 36050378 DOI: 10.1038/s41557-022-01018-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 07/04/2022] [Indexed: 01/04/2023]
Abstract
The synthesis and study of radioactive compounds are both inherently limited by their toxicity, cost and isotope scarcity. Traditional methods using small inorganic or organic complexes typically require milligrams of sample-per attempt-which for some isotopes is equivalent to the world's annual supply. Here we demonstrate that polyoxometalates (POMs) enable the facile formation, crystallization, handling and detailed characterization of metal-ligand complexes from microgram quantities owing to their high molecular weight and controllable solubility properties. Three curium-POM complexes were prepared, using just 1-10 μg per synthesis of the rare isotope 248Cm3+, and characterized by single-crystal X-ray diffraction, showing an eight-coordinated Cm3+ centre. Moreover, spectrophotometric, fluorescence, NMR and Raman analyses of several f-block element-POM complexes, including 243Am3+ and 248Cm3+, showed otherwise unnoticeable differences between their solution versus solid-state chemistry, and actinide versus lanthanide behaviour. This POM-driven strategy represents a viable path to isolate even rarer complexes, notably with actinium or transcalifornium elements.
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Affiliation(s)
- Ian Colliard
- Glenn T. Seaborg Institute, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
| | - Jonathan R I Lee
- Material Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Christopher A Colla
- Atmospheric, Earth and Energy Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Harris E Mason
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - April M Sawvel
- Material Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - Mavrik Zavarin
- Glenn T. Seaborg Institute, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, OR, USA
| | - Gauthier J-P Deblonde
- Glenn T. Seaborg Institute, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, USA.
- Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, USA.
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9
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Falco A, Neri M, Melegari M, Baraldi L, Bonfant G, Tegoni M, Serpe A, Marchiò L. Semirigid Ligands Enhance Different Coordination Behavior of Nd and Dy Relevant to Their Separation and Recovery in a Non-aqueous Environment. Inorg Chem 2022; 61:16110-16121. [PMID: 36177719 PMCID: PMC9554911 DOI: 10.1021/acs.inorgchem.2c02619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Rare-earth elements are widely used in high-end technologies,
the
production of permanent magnets (PMs) being one of the sectors with
the greatest current demand and likely greater future demand. The
combination of Nd and Dy in NdFeB PMs enhances their magnetic properties
but makes their recycling more challenging. Due to the similar chemical
properties of Nd and Dy, their separation is expensive and currently
limited to the small scale. It is therefore crucially important to
devise efficient and selective methods that can recover and then reuse
those critical metals. To address these issues, a series of heptadentate
Trensal-based ligands were used for the complexation of Dy3+ and Nd3+ ions, with the goal of indicating the role of
coordination and solubility equilibria in the selective precipitation
of Ln3+–metal complexes from multimetal non-water
solutions. Specifically, for a 1:1 Nd/Dy mixture, a selective and
fast precipitation of the Dy complex occurred in acetone with the
Trensalp-OMe ligand at room temperature,
with a concomitant enrichment of Nd in the solution phase. In acetone,
complexes of Nd and Dy with Trensalp-OMe were characterized by very similar formation constants of 7.0(2)
and 7.3(2), respectively. From the structural analysis of an array
of Dy and Nd complexes with TrensalR ligands, we showed
that Dy invariably provided complexes with coordination number (cn)
of 7, whereas the larger Nd experienced an expansion of the coordination
sphere by recruiting additional solvent molecules and giving a cn
of >7. The significant structural differences have been identified
as the main premises upon which a suitable separation strategy can
be devised with these kind of ligands, as well as other preorganized
polydentate ligands that can exploit the small differences in Ln3+ coordination requirements. Heptadentate
TrensalR-based ligands were complexed
with Dy3+ and Nd3+ cations. Dy compounds exhibited
an invariable coordination number of 7. Nd complexes presented a coordination
number of ≥8, with the metal having additional solvent or water
molecules in the coordination sphere. The ligand Trensalp-OMe led to a selective precipitation of the
Dy complex in acetone, with a concomitant enrichment of Nd in the
solution phase.
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Affiliation(s)
- Alex Falco
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Martina Neri
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Matteo Melegari
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Laura Baraldi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Giulia Bonfant
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Matteo Tegoni
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Angela Serpe
- Department of Civil and Environmental Engineering and Architecture (DICAAR) and Research Unit of INSTM, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy.,Environmental Geology and Geoengineering Institute of the National Research Council (IGAG-CNR), Piazza d'Armi, 09123 Cagliari, Italy
| | - Luciano Marchiò
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
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10
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Matsuda S, Yokoyama K, Yaita T, Kobayashi T, Kaneta Y, Simonnet M, Sekiguchi T, Honda M, Shimojo K, Doi R, Nakashima N. Marking actinides for separation: Resonance-enhanced multiphoton charge transfer in actinide complexes. SCIENCE ADVANCES 2022; 8:eabn1991. [PMID: 35584222 PMCID: PMC9116592 DOI: 10.1126/sciadv.abn1991] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/04/2022] [Indexed: 06/15/2023]
Abstract
Precise separation and purification of f-block elements are important and challenging especially for the reduction of nuclear waste and the recycling of rare metals but are practically difficult mainly because of their chemical similarity. A promising way to overcome this difficulty is controlling their oxidation state by nonchemical processes. Here, we show resonance-enhanced multiphoton charge transfer in actinide complexes, which leads to element-specific control of their oxidation states owing to the distinct electronic spectra arising from resonant transitions between f orbitals. We observed oxidation of trivalent americium in nitric acid. In addition, we found that the coordination of nitrates is essential for promoting the oxidation reaction, which is the first finding ever relevant to the primary process of photoexcitation via resonant transitions of f-block elements. The resonance-enhanced photochemical process could be used in the nuclear waste management, as it would facilitate the mutual separation of actinides, such as americium and curium.
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Affiliation(s)
- Shohei Matsuda
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
- Materials Sciences Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Keiichi Yokoyama
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Tsuyoshi Yaita
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Tohru Kobayashi
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Yui Kaneta
- Materials Sciences Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Marie Simonnet
- Materials Sciences Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Tetsuhiro Sekiguchi
- Materials Sciences Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Mitsunori Honda
- Materials Sciences Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Kojiro Shimojo
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Reisuke Doi
- Materials Sciences Research Center, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Nobuaki Nakashima
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- Institute for Laser Technology, 1-8-4 Utsubo-honmachi, Nishi-ku, Osaka 550-0004, Japan
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11
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Hydroxypyridinone-Based Metal Chelators towards Ecotoxicity: Remediation and Biological Mechanisms. Molecules 2022; 27:molecules27061966. [PMID: 35335329 PMCID: PMC8950932 DOI: 10.3390/molecules27061966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/13/2022] [Accepted: 03/14/2022] [Indexed: 01/29/2023] Open
Abstract
Hydroxypyridinones (HPs) are recognized as excellent chemical tools for engineering a diversity of metal chelating agents, with high affinity for hard metal ions, exhibiting a broad range of activities and applications, namely in medical, biological and environmental contexts. They are easily made and functionalizable towards the tuning of their pharmacokinetic properties or the improving of their metal complex thermodynamic stabilities. In this review, an analysis of the recently published works on hydroxypyridinone-based ligands, that have been mostly addressed for environmental applications, namely for remediation of hard metal ion ecotoxicity in living beings and other biological matrices is carried out. In particular, herein the most recent developments in the design of new chelating systems, from bidentate mono-HP to polydentate multi-HP derivatives, with a structural diversity of soluble or solid-supported backbones are outlined. Along with the ligand design, an analysis of the relationship between their structures and activities is presented and discussed, namely associated with the metal affinity and the thermodynamic stability of the corresponding metal complexes.
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12
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Carter KP, Wacker JN, Smith KF, Deblonde GJP, Moreau LM, Rees JA, Booth CH, Abergel RJ. In situ beam reduction of Pu(IV) and Bk(IV) as a route to trivalent transuranic coordination complexes with hydroxypyridinone chelators. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:315-322. [PMID: 35254293 PMCID: PMC8900832 DOI: 10.1107/s1600577522000200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
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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Affiliation(s)
- Korey P. Carter
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jennifer N. Wacker
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Kurt F. Smith
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Liane M. Moreau
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Julian A. Rees
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Corwin H. Booth
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Rebecca J. Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Nuclear Engineering, University of California, Berkeley, CA 94720, USA
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13
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Leveraging slow DOTA f-element complexation kinetics to enable separations by kinetic design. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Deblonde GJP, Mattocks JA, Dong Z, Wooddy PT, Cotruvo JA, Zavarin M. Capturing an elusive but critical element: Natural protein enables actinium chemistry. SCIENCE ADVANCES 2021; 7:eabk0273. [PMID: 34669462 PMCID: PMC8528432 DOI: 10.1126/sciadv.abk0273] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Actinium-based therapies could revolutionize cancer medicine but remain tantalizing due to the difficulties in studying and limited knowledge of Ac chemistry. Current efforts focus on small synthetic chelators, limiting radioisotope complexation and purification efficiencies. Here, we demonstrate a straightforward strategy to purify medically relevant radiometals, actinium(III) and yttrium(III), and probe their chemistry, using the recently discovered protein, lanmodulin. The stoichiometry, solution behavior, and formation constant of the 228Ac3+-lanmodulin complex and its 90Y3+/natY3+/natLa3+ analogs were experimentally determined, representing the first actinium-protein and strongest actinide(III)-protein complex (sub-picomolar Kd) to be characterized. Lanmodulin’s unparalleled properties enable the facile purification recovery of radiometals, even in the presence of >10+10 equivalents of competing ions and at ultratrace levels: down to 2 femtograms 90Y3+ and 40 attograms 228Ac3+. The lanmodulin-based approach charts a new course to study elusive isotopes and develop versatile chelating platforms for medical radiometals, both for high-value separations and potential in vivo applications.
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Affiliation(s)
- Gauthier J.-P. Deblonde
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
- Glenn T. Seaborg Institute, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
- Corresponding author. (G.J.-P.D.); (J.A.C.)
| | - Joseph A. Mattocks
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ziye Dong
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Paul T. Wooddy
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
| | - Joseph A. Cotruvo
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
- Corresponding author. (G.J.-P.D.); (J.A.C.)
| | - Mavrik Zavarin
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
- Glenn T. Seaborg Institute, Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
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15
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DGA resin capacity factors for Ac, Am and Th under tetravalent actinide selective complexation. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07774-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Goodwin CAP, Schlimgen AW, Albrecht‐Schönzart TE, Batista ER, Gaunt AJ, Janicke MT, Kozimor SA, Scott BL, Stevens LM, White FD, Yang P. Structural and Spectroscopic Comparison of Soft‐Se vs. Hard‐O Donor Bonding in Trivalent Americium/Neodymium Molecules. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Enrique R. Batista
- Theoretical Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Andrew J. Gaunt
- Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Michael T. Janicke
- Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Stosh A. Kozimor
- Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Brian L. Scott
- Materials Physics and Applications Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Lauren M. Stevens
- Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Frankie D. White
- Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Ping Yang
- Theoretical Division Los Alamos National Laboratory Los Alamos NM 87545 USA
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17
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Goodwin CAP, Schlimgen AW, Albrecht-Schönzart TE, Batista ER, Gaunt AJ, Janicke MT, Kozimor SA, Scott BL, Stevens LM, White FD, Yang P. Structural and Spectroscopic Comparison of Soft-Se vs. Hard-O Donor Bonding in Trivalent Americium/Neodymium Molecules. Angew Chem Int Ed Engl 2021; 60:9459-9466. [PMID: 33529478 DOI: 10.1002/anie.202017186] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Indexed: 11/06/2022]
Abstract
Covalency is often considered to be an influential factor in driving An3+ vs. Ln3+ selectivity invoked by soft donor ligands. This is intensely debated, particularly the extent to which An3+ /Ln3+ covalency differences prevail and manifest as the f-block is traversed, and the effects of periodic breaks beyond Pu. Herein, two Am complexes, [Am{N(E=PPh2 )2 }3 ] (1-Am, E=Se; 2-Am, E=O) are compared to isoradial [Nd{N(E=PPh2 )2 }3 ] (1-Nd, 2-Nd) complexes. Covalent contributions are assessed and compared to U/La and Pu/Ce analogues. Through ab initio calculations grounded in UV-vis-NIR spectroscopy and single-crystal X-ray structures, we observe differences in f orbital involvement between Am-Se and Nd-Se bonds, which are not present in O-donor congeners.
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Affiliation(s)
- Conrad A P Goodwin
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Anthony W Schlimgen
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Thomas E Albrecht-Schönzart
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftain Way, Tallahassee, FL, 32306, USA
| | - Enrique R Batista
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Andrew J Gaunt
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Michael T Janicke
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Stosh A Kozimor
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Brian L Scott
- Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Lauren M Stevens
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Frankie D White
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Ping Yang
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
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18
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Bertoli AC, Miguita AGC, Mingote RM, Augusti R, Duarte HA. Unveiling the Zirconium and Hafnium Speciation in Fluoride‐Nitric Acid Solutions by Paper Spray Ionization Mass Spectrometry Combined with DFT Calculations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandre C. Bertoli
- Grupo de Pesquisa em Química Inorgânica Teórica (GPQIT) Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Ana Gabriella C. Miguita
- Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Raquel M. Mingote
- Centro de Desenvolvimento da Tecnologia Nuclear – CDTN Av. Pres. Antônio Carlos, 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Rodinei Augusti
- Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Hélio A. Duarte
- Grupo de Pesquisa em Química Inorgânica Teórica (GPQIT) Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
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19
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Wang Y, Zhang Z, Abergel RJ. Hydroxypyridinone-based stabilization of Np(IV) enabling efficient U/Np/Pu separations in the Adapted PUREX process. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118178] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Pallares RM, Carter KP, Faulkner D, Abergel RJ. Macromolecular crystallography for f-element complex characterization. Methods Enzymol 2021; 651:139-155. [PMID: 33888202 DOI: 10.1016/bs.mie.2021.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Single crystal X-ray diffraction is a technique that measures interatomic distances with atomic resolution. Utilizing this technique for metal complexes featuring lanthanide and actinide elements is complicated by the scarcity and radioactivity of many of the metals of the f-block, as sub-milligram samples are difficult to crystallize for small molecule X-ray diffraction experiments. In this chapter, we present a protocol developed in our group that circumvents these challenges by exploiting macromolecular crystallography, wherein a protein with a large and well-characterized binding calyx is used as a scaffold to crystallize small-molecule metal complexes. Highlighting several examples, we identify the structural and chemical information that can be acquired by this method, and delineate the benefits of directing crystal growth with proteins, such as decreasing the amount of metal used to the sub-microgram scale. Moreover, since protein recognition depends on the nature of the metal-chelator bonds, subtle effects in the lanthanide and actinide coordination chemistry, such as metal-ligand covalency, can be qualitatively assessed.
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Affiliation(s)
- Roger M Pallares
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Korey P Carter
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - David Faulkner
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Rebecca J Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Nuclear Engineering, University of California, Berkeley, CA, United States.
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21
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Fan D, Fang Q. Siderophores for medical applications: Imaging, sensors, and therapeutics. Int J Pharm 2021; 597:120306. [PMID: 33540031 DOI: 10.1016/j.ijpharm.2021.120306] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 01/07/2023]
Abstract
Siderophores are low-molecular-weight chelators produced by microorganisms to scavenge iron from the environment and deliver it to cells via specific receptors. Tremendous researches on the molecular basis of siderophore regulation, synthesis, secretion, and uptake have inspired their diverse applications in the medical field. Replacing iron with radionuclides in siderophores, such as the most prominent Ga-68 for positron emission tomography (PET), carves out ways for targeted imaging of infectious diseases and cancers. Additionally, the high affinity of siderophores for metal ions or microorganisms makes them a potent detecting moiety in sensors that can be used for diagnosis. As for therapeutics, the notable Trojan horse-inspired siderophore-antibiotic conjugates demonstrate enhanced toxicity against multi-drug resistant (MDR) pathogens. Besides, siderophores can tackle iron overload diseases and, when combined with moieties such as hydrogels and nanoparticles, a wide spectrum of iron-induced diseases and even cancers. In this review, we briefly outline the related mechanisms, before summarizing the siderophore-based applications in imaging, sensors, and therapeutics.
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Affiliation(s)
- Di Fan
- Laboratory of Theoretical and Computational Nanoscience, CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China
| | - Qiaojun Fang
- Laboratory of Theoretical and Computational Nanoscience, CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China; Sino-Danish Center for Education and Research, Beijing 101408, PR China.
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22
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Carter KP, Smith KF, Tratnjek T, Deblonde GJP, Moreau LM, Rees JA, Booth CH, Abergel RJ. Controlling the Reduction of Chelated Uranyl to Stable Tetravalent Uranium Coordination Complexes in Aqueous Solution. Inorg Chem 2021; 60:973-981. [PMID: 33356197 DOI: 10.1021/acs.inorgchem.0c03088] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The solution-state interactions between octadentate hydroxypyridinone (HOPO) and catecholamide (CAM) chelating ligands and uranium were investigated and characterized by UV-visible spectrophotometry and X-ray absorption spectroscopy (XAS), as well as electrochemically via spectroelectrochemistry (SEC) and cyclic voltammetry (CV) measurements. Depending on the selected chelator, we demonstrate the controlled ability to bind and stabilize UIV, generating with 3,4,3-LI(1,2-HOPO), a tetravalent uranium complex that is practically inert toward oxidation or hydrolysis in acidic, aqueous solution. At physiological pH values, we are also able to bind and stabilize UIV to a lesser extent, as evidenced by the mix of UIV and UVI complexes observed via XAS. CV and SEC measurements confirmed that the UIV complex formed with 3,4,3-LI(1,2-HOPO) is redox inert in acidic media, and UVI ions can be reduced, likely proceeding via a two-electron reduction process.
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Affiliation(s)
- Korey P Carter
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Kurt F Smith
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Toni Tratnjek
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gauthier J-P Deblonde
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Glenn T. Seaborg Institute, Physical & Life Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Liane M Moreau
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Julian A Rees
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Corwin H Booth
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Rebecca J Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Nuclear Engineering, University of California, Berkeley, California 94709, United States
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23
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Mattocks JA, Cotruvo JA. Biological, biomolecular, and bio-inspired strategies for detection, extraction, and separations of lanthanides and actinides. Chem Soc Rev 2020; 49:8315-8334. [PMID: 33057507 DOI: 10.1039/d0cs00653j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Lanthanides and actinides are elements of ever-increasing technological importance in the modern world. However, the similar chemical and physical properties within these groups make purification of individual elements a challenge. Current industrial standards for the extraction, separation, and purification of these metals from natural sources, recycled materials, and industrial waste are inefficient, relying upon harsh conditions, repetitive steps, and ligands with only modest selectivity. Biological, biomolecular, and bio-inspired strategies towards improving these separations and making them more environmentally sustainable have been researched for many years; however, these methods often have insufficient selectivity for practical application. Recent developments in the understanding of how lanthanides are selectively acquired and used by certain bacteria offer the opportunity for a newer, more efficient take on these designs, as well as the possibility for fundamentally new designs and strategies. Herein, we review current cell-based and biomolecular (primarily small-molecule and protein-based) methods for detection, extraction, and separations of f-block elements. We discuss how the increasing knowledge regarding the selective recognition, uptake, trafficking, and storage of these elements in biological systems has informed and will continue to promote development of novel approaches to achieve these ends.
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Affiliation(s)
- Joseph A Mattocks
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.
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24
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Wang Y, Deblonde GJP, Abergel RJ. Hydroxypyridinone Derivatives: A Low-pH Alternative to Polyaminocarboxylates for TALSPEAK-like Separation of Trivalent Actinides from Lanthanides. ACS OMEGA 2020; 5:12996-13005. [PMID: 32548484 PMCID: PMC7288584 DOI: 10.1021/acsomega.0c00873] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/08/2020] [Indexed: 05/06/2023]
Abstract
Separation of lanthanides (Ln) from actinides (An) is unanimously challenging in reprocessing used nuclear fuel despite of much dedicated efforts over the past several decades. The TALSPEAK process is the current reference method in the United States for Ln3+/An3+ separation but suffers from several limitations, such as a narrow working pH window (3.5-4.0), costly pH buffers, and slow extraction kinetics. Studies aiming at improving TALSPEAK have so far focused on polyaminocarboxylates hold-back reagents. Here, a new class of water-soluble ligands comprising hydroxypyridinone metal-binding units are evaluated for Ln3+/An3+ separation. The model octadentate chelator 3,4,3-LI(1,2-HOPO) (abbreviated as HOPO) was used in combination with several industry-relevant organic extractants to separate Gd from four transplutonium elements (Am, Cm, Bk, and Cf). Cyanex 301 GN and HDEHP worked best in combination with HOPO, whereas HEH[EHP], Cyanex 572, and ACORGA M5640 did not yield practical Ln3+/An3+ separation. Separation factors between Gd3+ and Am3+ reach about 50 with the HOPO/Cyanex 301 GN system and 30 with the HOPO/HDEHP system. The results using HDEHP (SFGd/Am = 30, SFGd/Cm = 8.5, and SFGd/Cf = 773) are high enough for industrial applications, and the proposed system works at pH values as low as 1.5, which simplifies the process by eliminating the need for pH buffers. In contrast to previously proposed methods, the HOPO-based process is also highly selective at separating Bk from Ln3+ (SFGd/Bk = 273) owing to in situ, spontaneous oxidation of Bk(III) to Bk(IV) by HOPO. The optimal pH in the case of HOPO/Cyanex 301 GN is 3.6 (SFAm/Gd = 50, SFCm/Gd = 23, SFBk/Gd = 1.4, and SFCf/Gd = 3.2), but this system has the advantage of extracting An ions into the organic phase while keeping Ln ions in the aqueous phase, which is opposite to the conventional TALSPEAK process. This study represents the first optimization of a TALSPEAK-like Ln/An separation method using a HOPO chelator and paves the avenue for further developments of analytical science and reprocessing of used nuclear fuel.
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Affiliation(s)
- Yufei Wang
- Department
of Nuclear Engineering, University of California,
Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Gauthier J.-P. Deblonde
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Rebecca J. Abergel
- Department
of Nuclear Engineering, University of California,
Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
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25
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Park D, Middleton A, Smith R, Deblonde G, Laudal D, Theaker N, Hsu-Kim H, Jiao Y. A biosorption-based approach for selective extraction of rare earth elements from coal byproducts. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116726] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Developing scandium and yttrium coordination chemistry to advance theranostic radiopharmaceuticals. Commun Chem 2020; 3:61. [PMID: 36703424 PMCID: PMC9814396 DOI: 10.1038/s42004-020-0307-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/22/2020] [Indexed: 01/29/2023] Open
Abstract
The octadentate siderophore analog 3,4,3-LI(1,2-HOPO), denoted 343-HOPO hereafter, is known to have high affinity for both trivalent and tetravalent lanthanide and actinide cations. Here we extend its coordination chemistry to the rare-earth cations Sc3+ and Y3+ and characterize fundamental metal-chelator binding interactions in solution via UV-Vis spectrophotometry, nuclear magnetic resonance spectroscopy, and spectrofluorimetric metal-competition titrations, as well as in the solid-state via single crystal X-ray diffraction. Sc3+ and Y3+ binding with 343-HOPO is found to be robust, with both high thermodynamic stability and fast room temperature radiolabeling, indicating that 343-HOPO is likely a promising chelator for in vivo applications with both metals. As a proof of concept, we prepared a 86Y-343-HOPO complex for in vivo PET imaging, and the results presented herein highlight the potential of 343-HOPO chelated trivalent metal cations for therapeutic and theranostic applications.
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Pallares RM, Abergel RJ. Transforming lanthanide and actinide chemistry with nanoparticles. NANOSCALE 2020; 12:1339-1348. [PMID: 31859321 DOI: 10.1039/c9nr09175k] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lanthanides and actinides are used in a wide variety of applications, from energy production to life sciences. To address toxicity issues due to the chemical, and often radiological, properties of these elements, methods to quantify and recover them from industrial waste are necessary. When used in biomedicine, lanthanides and actinides are incorporated in compounds that show promising therapeutic and/or bioimaging properties, but lack robust strategies to target cancer and other pathologies. Furthermore, current decorporation protocols to respond to accidental actinide exposure rely on intravenous injections of soluble chelating agents, which are inefficient for treatment of inhaled radionuclides trapped in lungs. In recent years, nanoparticles have emerged as powerful tools in both industry and clinical settings. Because some inorganic nanoparticles are sensitive to external stimuli, such as light and magnetic fields, they can be used as building blocks for sensitive bioassays and separation techniques. In addition, nanoparticles can be functionalized with multiple ligands and act as carriers for selective delivery of therapeutic and contrast agents. This review summarizes and discusses recent progress on the use of nanoparticles in lanthanide and actinide chemistry. We examine different types of nanoparticles based on composition, functionalization, and properties, and we critically analyze their performance in a comparative mode. Our focus is two-pronged, including the nanoparticles free of lanthanides and actinides that are used for the detection, separation, or decorporation of f-block elements, as well as the nanoparticles that enhance the inherent properties of lanthanides and actinides for therapeutics, imaging and catalysis.
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Affiliation(s)
- Roger M Pallares
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
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28
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Gompa TP, Ramanathan A, Rice NT, La Pierre HS. The chemical and physical properties of tetravalent lanthanides: Pr, Nd, Tb, and Dy. Dalton Trans 2020; 49:15945-15987. [DOI: 10.1039/d0dt01400a] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The thermochemistry, descriptive chemistry, spectroscopy, and physical properties of the tetravalent lanthanides (Pr, Nd, Tb and Dy) in extended phases, gas phase, solution, and as isolable molecular complexes are presented.
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Affiliation(s)
- Thaige P. Gompa
- Department of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Arun Ramanathan
- Department of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Natalie T. Rice
- Department of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
| | - Henry S. La Pierre
- Department of Chemistry and Biochemistry
- Georgia Institute of Technology
- Atlanta
- USA
- Nuclear and Radiological Engineering Program
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29
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Zhang X, da Silva I, Fazzi R, Sheveleva AM, Han X, Spencer BF, Sapchenko SA, Tuna F, McInnes EJL, Li M, Yang S, Schröder M. Iodine Adsorption in a Redox-Active Metal-Organic Framework: Electrical Conductivity Induced by Host-Guest Charge-Transfer. Inorg Chem 2019; 58:14145-14150. [PMID: 31566954 PMCID: PMC6806328 DOI: 10.1021/acs.inorgchem.9b02176] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Indexed: 12/14/2022]
Abstract
We report a comparative study of the binding of I2 (iodine) in a pair of redox-active metal-organic framework (MOF) materials, MFM-300(VIII) and its oxidized, deprotonated analogue, MFM-300(VIV). Adsorption of I2 in MFM-300(VIII) triggers a host-to-guest charge-transfer, accompanied by a partial (∼30%) oxidation of the VIII centers in the host framework and formation of I3- species residing in the MOF channels. Importantly, this charge-transfer induces a significant enhancement in the electrical conductivity (Δσ = 700000) of I2@MFM-300(VIII/IV) in comparison to MFM-300(VIII). In contrast, no host-guest charge-transfer or apparent change in the conductivity was observed upon adsorption of I2 in MFM-300(VIV). High-resolution synchrotron X-ray diffraction of I2@MFM-300(VIII/IV) confirms the first example of self-aggregation of adsorbed iodine species (I2 and I3-) into infinite helical chains within a MOF.
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Affiliation(s)
- Xinran Zhang
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Ivan da Silva
- ISIS
Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, U.K.
| | - Rodrigo Fazzi
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
- Institute
of Chemistry, Universidade de Sao Paulo, Sao Paulo, CEP 05508-000, Brazil
| | - Alena M. Sheveleva
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
- International
Tomography Centre, Siberian Branch of the Russian Academy of Sciences
and Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Xue Han
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Ben F. Spencer
- School
of Materials, University of Manchester, Manchester M13 9PL, U.K.
| | - Sergey A. Sapchenko
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
- Nikolaev
Institute of Inorganic Chemistry, SB RAS, Novosibirsk, 630090, Russia
- Novosibirsk
State University, Novosibirsk, 630090, Russia
| | - Floriana Tuna
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | | | - Ming Li
- Department
of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham NG7 2RD, U.K.
| | - Sihai Yang
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Martin Schröder
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
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30
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Kumar R. S, Ashok Kumar SK. A light activated CMP conjugated 8-aminoquinoline turn-on fluorescent optode for selective determination of Th4+ in an aqueous environment. Dalton Trans 2019; 48:12607-12614. [DOI: 10.1039/c9dt01830a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new dibutyl(2-oxo-2-(quinolin-8-ylamino)ethyl)phosphinate (L) was designed, synthesised and developed as a light activated optode for Th4+ determination.
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Affiliation(s)
- Selva Kumar R.
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore-632014
- India
| | - S. K. Ashok Kumar
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore-632014
- India
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