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Takeyama T, Tsushima S, Gericke R, Kaden P, März J, Takao K. Fate of Oxidation States at Actinide Centers in Redox-Active Ligand Systems Governed by Energy Levels of 5 f Orbitals. Chemistry 2023:e202302702. [PMID: 37671842 DOI: 10.1002/chem.202302702] [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: 08/24/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023]
Abstract
We report the formation of a NpIV complex from the complexation of NpVI O2 2+ with the redox-active ligand tBu-pdiop2- =2,6-bis[N-(3,5-di-tert-butyl-2-hydroxyphenyl)iminomethyl]pyridine. To the best of our knowledge, this is the first example of the direct complexation-induced chemical reduction of NpVI O2 2+ to NpIV . In contrast, the complexation of UVI O2 2+ with tBu-pdiop2- did not induce the reduction of UVI O2 2+ , not even after the two-electron electrochemical reduction of [UVI O2 (tBu-pdiop)]. This contrast between the Np and U systems may be ascribed to the decrease of the energy of the 5 f orbitals in Np compared to those in U. The present findings indicate that the redox chemistry between UVI O2 2+ and NpVI O2 2+ should be clearly differentiated in redox-active ligand systems.
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Affiliation(s)
- Tomoyuki Takeyama
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 N1-32, O-okayama, Meguro-ku, 152-8550, Tokyo, Japan
- Department of Applied Chemistry, Sanyo-Onoda City University, 1-1-1, Daigakudori, Sanyo-Onoda, Yamaguchi, 756-0884, Japan
| | - Satoru Tsushima
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstraße 400, 01328, Dresden, Germany
- International Research Frontiers Initiative (IRFI), Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro-ku, 152-8550, Tokyo, Japan
| | - Robert Gericke
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Peter Kaden
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Juliane März
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Koichiro Takao
- Laboratory for Zero-Carbon Energy, Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 N1-32, O-okayama, Meguro-ku, 152-8550, Tokyo, Japan
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Rout A, Mishra S. Ligand Effect on Physicochemical Properties of Ionic Liquid. Chemphyschem 2023; 24:e202200802. [PMID: 36631955 DOI: 10.1002/cphc.202200802] [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: 10/25/2022] [Revised: 01/11/2023] [Accepted: 01/11/2023] [Indexed: 01/13/2023]
Abstract
In the solvent extraction process, the importance of an extractant (or ligand) and a diluent is inferred from their respective physicochemical properties. We have brought together all the recent results reported on the mixture of different extractants dissolved in a well-known ionic liquid diluent: 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C4 mim][NTf2 ]) in the form of a review and aimed to emphasize the role of ligand polarity and structure on the physicochemical properties of an ionic liquid (IL) diluent. Some of the most important properties such as dynamic viscosity (η), absolute density ( ρ ${{\rm{{\rm \rho} }}}$ ), energy of activation (Ea ), coefficient of thermal expansion (α), phase separation time (PST), refractive index (n), etc., have been discussed meticulously in the paper. The effect of ligand structure on the aggregation behaviour of IL phase and the physicochemical properties of gamma irradiated solvent phases containing different ligands and their solution with IL phase also have been deliberated in detail.
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Affiliation(s)
- Alok Rout
- Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India
| | - Satyabrata Mishra
- Reprocessing Research & Development Division, Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India
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Götzke L, Schaper G, März J, Kaden P, Huittinen N, Stumpf T, Kammerlander KK, Brunner E, Hahn P, Mehnert A, Kersting B, Henle T, Lindoy LF, Zanoni G, Weigand JJ. Coordination chemistry of f-block metal ions with ligands bearing bio-relevant functional groups. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Sockwell AK, Wetzler M. Beyond Biological Chelation: Coordination of f‐Block Elements by Polyhydroxamate Ligands. Chemistry 2018; 25:2380-2388. [DOI: 10.1002/chem.201803176] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 11/10/2022]
Affiliation(s)
- A. Kirstin Sockwell
- Clemson UniversityChemistry Department Address 211 S Palmetto Blvd Clemson SC 29634 USA
| | - Modi Wetzler
- Clemson UniversityChemistry Department Address 211 S Palmetto Blvd Clemson SC 29634 USA
- Clemson UniversityNuclear Environmental Engineering, Sciences and Radioactive Waste Management Address 342 Computer Ct Anderson SC 29625 USA
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Ionic liquids for TRansUranic Extraction (TRUEX)—Recent developments in nuclear waste management: A review. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.036] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kishor P, Sengupta A, Gupta NK, Biswas S. Quaternary ammonium-based task-specific ionic liquid: An efficient and ‘green’ separation for ‘f block’ elements. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1384495] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Preetam Kishor
- Department of Chemistry, Integrated Science Education and Research Centre, Visva-Bharati, West Bengal, India
| | - Arijit Sengupta
- Department of Chemistry, Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | | | - Sujoy Biswas
- Uranium Extraction Division, Bhabha Atomic Research Centre, Mumbai, India
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Sharma S, Panja S, Bhattacharyya A, Dhami PS, Gandhi PM, Ghosh SK. Synthesis and extraction studies with a rationally designed diamide ligand selective to actinide(iv) pertinent to the plutonium uranium redox extraction process. Dalton Trans 2017; 45:7737-47. [PMID: 27054892 DOI: 10.1039/c6dt00748a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of conformationally constrained oxa-bridged tricyclo-dicarboxamide (OTDA) ligand was rationally designed for the selective extraction of tetravalent actinides pertinent to the Plutonium Uranium Redox EXtraction (PUREX) process. Two of the designed diamide ligands were synthesized and extraction studies were performed for Pu(iv) from HNO3 medium. The mechanism of extraction was investigated by studying various parameters such as feed HNO3, NaNO3 and OTDA concentrations. The nature of the extracted species was found to be [Pu(NO3)4(OTDA)]. One of the OTDA ligands was elaborately tested and showed the selective extraction of Pu(iv) and Np(iv) over other actinide species, viz., U(vi), Np(v), Am(iii), lanthanides and fission products contained in a nuclear waste from the PUREX process. DFT calculations predicted the charge density on each of the coordinating 'O' atoms of OTDA supporting its high Pu(iv) selectivity over other ions studied and also provided the energy optimized structure of OTDA and its Pu(iv) complex.
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Affiliation(s)
- Shikha Sharma
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Surajit Panja
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | | | - Prem S Dhami
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Preetam M Gandhi
- Fuel Reprocessing Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Sunil K Ghosh
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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Ruhela R, Panja S, Singh AK, Dhami PS, Gandhi PM. BenzoDODA grafted polymeric resin-Plutonium selective solid sorbent. JOURNAL OF HAZARDOUS MATERIALS 2016; 318:186-193. [PMID: 27420390 DOI: 10.1016/j.jhazmat.2016.06.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/27/2016] [Accepted: 06/22/2016] [Indexed: 06/06/2023]
Abstract
A new ligand grafted polymeric resin (BenzoDODA SDVB) was synthesized by covalently attaching plutonium selective ligand (BenzoDODA) on to styrene divinyl benzene (SDVB) polymer matrix. BenzoDODA SDVB resin was evaluated for separation and recovery of plutonium(IV) from nitric acid medium. Sorption of Pu(IV) was found to decrease with the increase in nitric acid concentration, with very small sorption above 7.0M HNO3. Sorption kinetics was fast enough to achieve the equilibrium within 60min of contact where the kinetic data fitted well to pseudo-second-order model. Sorption isotherm data fitted well to Langmuir model suggesting chemical interaction between the BenzoDODA moiety and plutonium(IV) ions. Sorption studies with some of representative radionuclides of high level waste showed that BenzoDODA SDVB is selective and therefore could be a promising solid sorbent for separation and recovery of plutonium. Further, the theoretical calculations done on BenzoDODA SDVB resin suggested Pu(NO3)4·BenzoDODA (1:1) sorbed complex conformed to generally observed square antiprism geometry of the plutonium complexes, with contributions from oxygen atoms of four nitrate ions as well as from four oxygen atoms present in BenzoDODA (two phenolic ether oxygen atoms and two carbonyl oxygen atoms of amidic moiety).
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Affiliation(s)
- R Ruhela
- Materials Processing Division, Materials Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - S Panja
- Fuel Reprocessing Division, Nuclear Fuels Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - A K Singh
- Materials Processing Division, Materials Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - P S Dhami
- Fuel Reprocessing Division, Nuclear Fuels Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - P M Gandhi
- Fuel Reprocessing Division, Nuclear Fuels Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Singh K, Panja S, Ruhela R, Kumar M, Tripathi S, Singh A, Chakravartty J, Bajaj P. Studies on BenzoDODA encapsulated polymeric beads for separation of plutonium from acidic solution. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Cherkupally P, Ramesh S, Govender T, Kruger HG, de la Torre BG, Albericio F. An efficient solid-phase strategy for total synthesis of naturally occurring amphiphilic marine siderophores: amphibactin-T and moanachelin ala-B. Org Biomol Chem 2015; 13:4760-8. [PMID: 25806414 DOI: 10.1039/c5ob00100e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microorganisms such as bacteria, fungi and some plants secrete an abundance of suites of low molecular weight, high-affinity iron(iii)-chelating acylated siderophores. The peptide composition of a suite of amphiphilic siderophores generated by a Vibrio species, isolated from oligotrophic open ocean water, contained the same iron(iii)-scavenging polar head group and is attached to a fatty acid. In the present study, we report the first total synthesis of the naturally obtainable marine siderophores amphibactin-T and moanachelin ala-B on solid-phase using standard Fmoc-chemistry. Furthermore, we discuss the preparation of orthogonal protected Orn amino acid 'N(α)-Fmoc-N(δ)-(acetyl)-N(δ)-(benzoyloxy)-ornithine' [Fmoc-Orn(Ac,OBz)-OH], which is the most important constructive building block for amphibactin and moanachelin siderophores syntheses. The applications of this Orn unit on solid-phase have also been discussed.
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Affiliation(s)
- Prabhakar Cherkupally
- Catalysis and Peptide Research Unit, School of Health Sciences, University of Kwazulu-Natal, Durban 4001, South Africa.
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12
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Ruhela R, Panja S, Tomar B, Mahajan M, Sawant R, Tripathi S, Singh A, Gandhi P, Hubli R, Suri A. Bis-(2-ethylhexyl) carbamoyl methoxy phenoxy-bis-(2-ethylhexyl) acetamide [BenzoDODA]—first selective extractant for plutonium(IV) recovery (SEPUR) from acidic media. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.07.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Determination of CMPO using HPLC–UV. J Chromatogr A 2012; 1243:47-52. [DOI: 10.1016/j.chroma.2012.04.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 04/20/2012] [Indexed: 11/18/2022]
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Abstract
SummaryPlutonium has no known biological utility, yet it has the potential to interact with bacterial cellular and extracellular structures that contain metal-binding groups, to interfere with the uptake and utilization of essential elements, and to alter cell metabolism. These interactions can transform plutonium from its most common forms, solid, mineral-adsorbed, or colloidal Pu(IV), to a variety of biogeochemical species that have much different physico-chemical properties. Organic acids that are extruded products of cell metabolism can solubilize plutonium and then enhance its environmental mobility, or in some cases facilitate plutonium transfer into cells. Phosphate- and carboxylate-rich polymers associated with cell walls can bind plutonium to form mobile biocolloids or Pu-laden biofilm/mineral solids. Bacterial membranes, proteins or redox agents can produce strongly reducing electrochemical zones and generate molecular Pu(III/IV) species or oxide particles. Alternatively, they can oxidize plutonium to form soluble Pu(V) or Pu(VI) complexes. This paper reviews research on plutonium-bacteria interactions and closely related studies on the biotransformation of uranium and other metals.
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Gerstmann U, Lierse C, Geckeler K. Investigations on the interactions between plutonium and synthetic water-soluble polymers. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2001.89.6.377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The interactions between Pu(IV) and Pu(VI), respectively, and some synthetic water-soluble polymers were investigated by absorption spectroscopy and ultrafiltration. Depending on the type of polymer plutonium can be bound by different mechanisms. Poly(acrylic acid) binds Pu(IV) and Pu(VI) by stepwise complexation, which can be observed by absorption spectroscopy. Due to chelation, some of the formation constants are greater than those from corresponding complexes with low-molecular carboxylic acids. By poly(styrenesulfonic acid) and poly(vinylesulfonic acid), Pu(IV) is bound via counterion condensation. In nitrate and chloride media, anionic Pu(IV) complexes may be bound by quaternary ammonium polymers like poly(diallydimethylammonium chloride) and permethylated poly(ethyleneimine).
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Oldham WJ, Dry DE, Mueller AH. Synthesis of functional monolayer surfaces for rapid radiometric determination of plutonium. J Radioanal Nucl Chem 2009. [DOI: 10.1007/s10967-009-0243-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Thermodynamic studies of actinide complexes. 1. A reappraisal of the solution equilibria between plutonium(IV) and ethylenediaminetetraacetic acid (EDTAH4) in nitric media. CR CHIM 2007. [DOI: 10.1016/j.crci.2007.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Croudace IW, Warwick PE, Greenwood RC. A novel approach for the rapid decomposition of Actinide™ resin and its application to measurement of uranium and plutonium in natural waters. Anal Chim Acta 2006; 577:111-8. [PMID: 17723661 DOI: 10.1016/j.aca.2006.06.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2006] [Revised: 06/05/2006] [Accepted: 06/10/2006] [Indexed: 11/17/2022]
Abstract
A rapid and robust procedure is described for the decomposition of Actinide resin permitting the routine application of this resin as a preconcentrator. Although the classical Fe(OH)3 precipitation is effective in scavenging actinides, the need for careful handling to recover the sticky precipitate makes the new method much more attractive. The known difficulty of decomposing Actinide resin, which is required prior to the subsequent separation of adsorbed actinides, is innovatively overcome by using a borate fusion attack. This procedure effectively solves the normally encountered problem by safely and speedily decomposing the resin in minutes rather than hours. The alternative and apparently simpler technique of direct ashing of the Actinide resin is not used since it leads to a residue that is not readily leachable. The new technique has been incorporated into a procedure for the isolation of Pu and U from natural water samples and their subsequent quantification by alpha spectrometry. The efficiency of loading of the elements onto Actinide resin has been tested using both batch and column-based approaches. The integrated method involving Actinide resin preconcentration, borate fusion, anion and UTEVA chromatography and electrodeposition provides limits of detection of 0.001 BqL(-1) and chemical recoveries in excess of 80% from groundwater and seawater samples as large as 5L. Comparative data, presented for the analysis of independently analysed river, borehole and surface run-off waters using both the described procedure and other competing techniques, show very good agreement.
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Affiliation(s)
- I W Croudace
- GAU-Radioanalytical, National Oceanography Centre, European Way, Southampton SO14 3ZH, UK.
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Maheswari M, Subramanian M. AXAD-16-3,4-dihydroxy benzoyl methyl phosphonic acid: a selective preconcentrator for U and Th from acidic waste streams and environmental samples. REACT FUNCT POLYM 2005. [DOI: 10.1016/j.reactfunctpolym.2004.10.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Ruggiero CE, Matonic JH, Reilly SD, Neu MP. Dissolution of plutonium(IV) hydroxide by desferrioxamine siderophores and simple organic chelators. Inorg Chem 2002; 41:3593-5. [PMID: 12099858 DOI: 10.1021/ic015591o] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Plutonium is thought to exist mostly as low soluble plutonium(IV) species in the environment and, therefore, has low potential of becoming mobile. Due to their prevalence and high solution stability constants for Pu(IV), microbial siderophores could significantly affect plutonium solubility and mobility. In this study, the ability of trihydroxamate desferrioxamine siderophores to solubilize Pu(IV) solids was investigated. Both desferrioxamine B and E (DFB and DFE) are far less effective at solubilizing amorphous Pu(IV) hydroxide in neutral solution than are simple chelators, such as EDTA, citrate, and tiron, despite the fact that these chelators have smaller solution stability constants for Pu(IV) than do DFE and DFB. Positively charged, linear DFB is less effective than the neutral cyclic DFE. Hydroxamate siderophores may, in fact, passivate Pu(IV) hydroxide surfaces, thereby inhibiting solubilization by other chelators. PuO(2) solubilization under these conditions is far slower than that of Pu(IV) hydroxide.
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Affiliation(s)
- Christy E Ruggiero
- Chemistry Division (C-SIC), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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22
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Environmental applications of self-assembled monolayers on mesoporous supports (SAMMS). ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-2991(02)80593-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Danis JA, Lin MR, Scott BL, Eichhorn BW, Runde WH. Coordination trends in alkali metal crown ether uranyl halide complexes: the series [A(crown)]2[UO(2)X(4)] where A=Li, Na, K and X=Cl, Br. Inorg Chem 2001; 40:3389-94. [PMID: 11421684 DOI: 10.1021/ic0011056] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
UO(2)(C(2)H(3)O(2))(2).2H(2)O reacts with AX or A(C(2)H(3)O(2) or ClO(4)) (where A = Li, Na, K; X = Cl, Br) and crown ethers in HCl or HBr aqueous solutions to give the sandwich-type compounds [K(18-crown-6)](2)[UO(2)Cl(4)] (1), [K(18-crown-6)](2)[UO(2)Br(4)] (2), [Na(15-crown-5)](2)[UO(2)Cl(4)] (3), [Na(15-crown-5)](2)[UO(2)Br(4)] (4), [Li(12-crown-4)](2)[UO(2)Cl(4)] (5), and [Li(12-crown-4)](2)[UO(2)Br(4)] (6). The compounds have been characterized by single-crystal X-ray diffraction, powder diffraction, elemental analysis, IR, and Raman spectroscopy. The [UO(2)X(4)](2-) ions coordinate to two [A(crown)](+) cations through the four halides only (2), through two halides only (3), through the two uranyl oxygens and two halides (3, 4), or through the two uranyl oxygen atoms only (5, 6). Raman spectra reveal nu(U-O) values that correlate with expected trends. The structural trends are discussed within the context of classical principles of hard-soft acid-base theory.
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Affiliation(s)
- J A Danis
- Environmental Science and Chemistry Divisions, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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Lambert TN, Dasaradhi L, Huber VJ, Gopalan AS. Synthesis of 3-Hydroxy-2-pyridinone Derivatives of 4-tert-Butylcalix[4]arenes: A New Class of Selective Extractants of Actinide(IV) Ions. J Org Chem 1999. [DOI: 10.1021/jo990387s] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Timothy N. Lambert
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003-8001
| | - Lakkaraju Dasaradhi
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003-8001
| | - Vincent J. Huber
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003-8001
| | - Aravamudan S. Gopalan
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003-8001
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Syntheses of some new polyaminocarboxylate and CMPO calix[4]arene chelators for the selective extraction of actinide ions. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00070-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Hay BP, Clement O, Sandrone G, Dixon DA. A Molecular Mechanics (MM3(96)) Force Field for Metal−Amide Complexes. Inorg Chem 1998. [DOI: 10.1021/ic980641j] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin P. Hay
- Theory, Modeling, and Simulation Group, Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
| | - Omoshile Clement
- Theory, Modeling, and Simulation Group, Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
| | - Giovanni Sandrone
- Theory, Modeling, and Simulation Group, Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
| | - David A. Dixon
- Theory, Modeling, and Simulation Group, Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
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