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Shohel M, Bustos J, Roseborough A, Nyman M. Pertechnetate/perrhenate-capped Zr/Hf-Dihydroxide Dimers: Elucidating Zr-TcO 4 Co-Mobility in the Nuclear Fuel Cycle. Chemistry 2024; 30:e202303218. [PMID: 38109648 DOI: 10.1002/chem.202303218] [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: 11/18/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/20/2023]
Abstract
Spent nuclear fuel contains heavy element fission products that must be separated for effective reprocessing for a safe and sustainable nuclear fuel cycle. 93 Zr and 99 Tc are high-yield fission products that co-transport in liquid-liquid extraction processes. Here we seek atomic-level information of this co-extraction process, as well as fundamental knowledge about ZrIV (and HfIV ) aqueous speciation in the presence of topology-directing ligands such as pertechnetate (TcO4 - ) and non-radioactive surrogate perrhenate (ReO4 - ). In this context, we show that the flat tetrameric oxyhydroxyl-cluster [MIV 4 (OH)8 (H2 O)16 ]8+ (and related polymers) is dissociated by perrhenate/pertechnetate to yield isostructural dimers, M2 (OH)2 (XO4 - )6 (H2 O)6 ⋅ 3H2 O (M=Zr/HfIV ; X=Re/TcVII ), elucidated by single-crystal X-ray diffraction. We used these model compounds to understand the pervasive 93 Zr-99 Tc coextraction with further speciation studies in water, nitric acid, and tetrabutylphosphate (TBP) -kerosene; where the latter two media are relevant to nuclear fuel reprocessing. SAXS (small angle X-ray scattering), compositional evaluation, and where experimentally feasible, ESI-MS (electrospray ionization mass spectrometry) showed that perrhenate/pertechnetate influence Zr/HfIV -speciation in water. In Zr-XO4 solvent extraction studies to simulate fuel reprocessing, we provide evidence that TcO4 - enhances extraction of ZrIV , and compositional analysis of the extracted metal-complexes (Zr-ReO4 study) is consistent with the crystallized ZrIV 2 (OH)2 (ReVII O4 - )6 (H2 O)6 ⋅dimer.
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Affiliation(s)
- Mohammad Shohel
- Department of Chemistry, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Jenna Bustos
- Department of Chemistry, Oregon State University, Corvallis, Oregon, 97331, USA
| | | | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon, 97331, USA
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2
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Shohel M, Sockwell AK, Hixon AE, Nyman M. Plutonium and Cerium Perrhenate/Pertechnetate Coordination Polymers and Frameworks. Inorg Chem 2024; 63:2044-2052. [PMID: 38232388 DOI: 10.1021/acs.inorgchem.3c03846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Spent nuclear fuel (SNF) contains transuranic and lanthanide species, which are sometimes recovered and repurposed. One particularly problematic fission product, 99TcO4-, hampers this recovery via coextraction with high valence metals, perhaps by complexation during aqueous reprocessing of SNF. There is limited molecular-level knowledge concerning the coordination chemistry between TcO4- or its well-known surrogate ReO4- and transuranic/lanthanide species. In the current study, we investigated the coordination of ReO4-/TcO4- with plutonium and cerium cations by structural and chemical characterization of a series of isolated extended solids. In this study, Ce represents both trivalent lanthanides and is considered a surrogate for Pu, respectively, in its common trivalent and tetravalent oxidation states. The structural elucidation of the seven isolated crystalline solids revealed that ReO4-/TcO4- directly connects to PuIV, PuVIO22+, CeIII, and CeIV in the terminal and bridging coordination modes, leading to 1-, 2-, and 3-dimensional frameworks. For example, ReO4- coordination to Pu(IV) formed a 1D chain or 2D framework, isostructural with previously isolated Th(IV) compounds. However, PuVIO22+ alternating with ReO4- led to a unique 1D chain, different from the prior-reported U(VI)/Np(VI)-ReO4-/TcO4- structures. Coordination of ReO4-/TcO4- with Ce(III) promotes the assembly of 3D frameworks. Finally, attempted synthesis of a Ce(IV)-ReO4- compound resulted in a 2D framework with a mixed-valence CeIII/IV. The highly acidic reaction conditions supported the reduction of both CeIV and TcVII, challenging isolation of compounds featuring these species. Only one TcO4-containing structure was obtained in this study (CeIII-TcO4 3D framework), vs the six total Ce/Pu-ReO4 compounds. Our three Pu-ReO4 crystal structures are the first reported and translated to atomic-level information about Pu-TcO4 coordination in nuclear fuel reprocessing scenarios, in addition to broadening our knowledge of bonding trends in the early, high-valence actinides.
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Affiliation(s)
- Mohammad Shohel
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - A Kirstin Sockwell
- Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Amy E Hixon
- Civil & Environmental Engineering & Earth Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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3
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Wei Z, Lu C, Zhou Y, Jiao C, Zhang M, Hou H, Gao Y, Tian G. Extraction and separation performance of rhenium(VII) and uranium(VI) from nitric acid medium using N,N′-dimethyl-N,N′-dioctyldiglycolamide. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06976-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Insights in uranium extraction from spent nuclear fuels using dicyclohexano-18-crown-6 – Fate of rhenium as technetium homolog. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.07.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Budantseva N, Andreev G, Fedoseev A. Structural Role of Isonicotinic Acid in U(VI), Np(VI), and Pu(VI) Complexes with TcO 4-, ReO 4-, and ClO 4- Ions. Inorg Chem 2017; 56:12199-12205. [PMID: 28949524 DOI: 10.1021/acs.inorgchem.7b01611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of new pertechnetate, perrhenate, and perchlorate compounds of hexavalent U, Np, and Pu containing isonicotinic acid were synthesized. Their crystal structures were determined by X-ray diffractometry. In all compounds, actinide atoms are found in pentagonal bipyramidal surroundings. They are coordinated by 2 to 4 isonicotinic acid molecules which exist in zwitterionic form as a result of N atom protonation. If only 2 or 3 isonicotinic acid molecules are present in the surroundings of an actinide (An) atom, TcO4- or ReO4- anions act as monodentate ligands. Otherwise, XO4- play the role of outer sphere anions. Electron and IR spectra of the compounds correlate with their crystal structure.
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Affiliation(s)
- Nina Budantseva
- Institute of Physical Chemistry and Electrochemistry , 31 Leninsky Prospect, 119071, Moscow, Russia
| | - Grigory Andreev
- Institute of Physical Chemistry and Electrochemistry , 31 Leninsky Prospect, 119071, Moscow, Russia
| | - Aleksander Fedoseev
- Institute of Physical Chemistry and Electrochemistry , 31 Leninsky Prospect, 119071, Moscow, Russia
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6
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Charushnikova IA, Fedoseev AM, Krot NN. Cation–cation interaction in mixed-element Th(IV)/Np(V) chlorides, [Th(NpO2)6(H2O)8(OH)Cl9]·H2O and [Th(NpO2)6(H2O)9Cl9]Cl. RADIOCHEMISTRY 2016. [DOI: 10.1134/s1066362216050015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Matveeva AG, Vologzhanina AV, Goryunov EI, Aysin RR, Pasechnik MP, Matveev SV, Godovikov IA, Safiulina AM, Brel VK. Extraction and coordination studies of a carbonyl–phosphine oxide scorpionate ligand with uranyl and lanthanide(iii) nitrates: structural, spectroscopic and DFT characterization of the complexes. Dalton Trans 2016; 45:5162-79. [DOI: 10.1039/c5dt04963f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A scorpionate organophosphorus ligand exhibits promising extraction properties and variable denticity in f-block element complexes in the solid state and solution.
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Affiliation(s)
- Anna G. Matveeva
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Anna V. Vologzhanina
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Evgenii I. Goryunov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Rinat R. Aysin
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Margarita P. Pasechnik
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Sergey V. Matveev
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Ivan A. Godovikov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | | | - Valery K. Brel
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
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8
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Pedrick EA, Wu G, Hayton TW. Oxo Ligand Substitution in a Cationic Uranyl Complex: Synergistic Interaction of an Electrophile and a Reductant. Inorg Chem 2015; 54:7038-44. [PMID: 26136106 DOI: 10.1021/acs.inorgchem.5b01077] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of [U(VI)O2(dppmo)2(OTf)][OTf] (dppmo = Ph2P(O)CH2P(O)Ph2) with 4 equiv of Ph3SiOTf and 2 equiv of Cp2Co generates the U(IV) complex U(IV)(OTf)4(dppmo)2 (1), as a yellow-green crystalline solid in 83% yield, along with Ph3SiOSiPh3 and [Cp2Co][OTf]. This reaction proceeds via a U(IV) silyloxide intermediate, [U(IV)(OSiPh3)(dppmo)2(OTf)2][OTf] (2), which we have isolated and structurally characterized. Similarly, reaction of [U(VI)O2(TPPO)4][OTf]2 (TPPO = Ph3PO) with 6 equiv of Me3SiOTf and 2 equiv of Cp2Co generates the U(IV) complex, [Cp2Co][U(IV)(OTf)5(TPPO)2] (3), as a yellow-green crystalline solid in 76% yield, concomitant with formation of Me3SiOSiMe3, [Ph3POSiMe3][OTf], and [Cp2Co][OTf]. Complexes 1 and 3 have been fully characterized, including analysis by X-ray crystallography. The conversion of [U(VI)O2(dppmo)2(OTf)][OTf] and [U(VI)O2(TPPO)4][OTf]2 to complexes 1 and 3, respectively, represents rare examples of well-defined uranyl oxo ligand substitution.
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Affiliation(s)
- Elizabeth A Pedrick
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Trevor W Hayton
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
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9
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Ali MC, Kawasaki T, Suzuki T, Sasaki Y, Ikeda Y. Syntheses and crystal structures of Eu(III) and Sm(III) perrhenate complexes with 2,2′-(imino)bis( N,N′-diethylacetamide). J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2014.915770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Li C, Peng X, Zhang SC, Chai LY, Yi XY. Heteropolymetallic complexes containing ReO4−: Catalytic oxidation of sulfide. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.12.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Gorden AEV, DeVore MA, Maynard BA. Coordination Chemistry with f-Element Complexes for an Improved Understanding of Factors That Contribute to Extraction Selectivity. Inorg Chem 2012; 52:3445-58. [DOI: 10.1021/ic300887p] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Anne E. V. Gorden
- Department of Chemistry
and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, Alabama 36849-5319, United
States
| | - Michael A. DeVore
- Department of Chemistry
and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, Alabama 36849-5319, United
States
| | - Branson A. Maynard
- Department of Chemistry
and Biochemistry, College of Science and Mathematics, Auburn University, Auburn, Alabama 36849-5319, United
States
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12
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Chaumont A, Klimchuk O, Gaillard C, Billard I, Ouadi A, Hennig C, Wipff G. Perrhenate Complexation by Uranyl in Traditional Solvents and in Ionic Liquids: A Joint Molecular Dynamics/Spectroscopic Study. J Phys Chem B 2012; 116:3205-19. [DOI: 10.1021/jp209476h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alain Chaumont
- Laboratoire
MSM, UMR 7177, Institut de Chimie, 1 rue
B. Pascal, 67000 Strasbourg,
France
| | - Olga Klimchuk
- Institut Pluridisciplinaire Hubert Curien, DRS, Radiochimie, 23 rue du Lœss,
67037 Strasbourg cedex 2, France
- Institute of Organic Chemistry, NAS of Ukraine, 02660, Murmanska, 5, Kyiv, Ukraine
| | - Clotilde Gaillard
- Université de Lyon, Institut de Physique Nucléaire de Lyon, CNRS-IN2P3,
4 rue Enrico Fermi, 69622 Villeurbanne cedex, France
| | - Isabelle Billard
- Institut Pluridisciplinaire Hubert Curien, DRS, Radiochimie, 23 rue du Lœss,
67037 Strasbourg cedex 2, France
| | - Ali Ouadi
- Institut Pluridisciplinaire Hubert Curien, DRS, Radiochimie, 23 rue du Lœss,
67037 Strasbourg cedex 2, France
| | - Christoph Hennig
- Institute of Radiochemistry, Forschungszentrum Dresden-Rossendorf, P.O. Box 510119,
01314 Dresden, Germany
| | - Georges Wipff
- Laboratoire
MSM, UMR 7177, Institut de Chimie, 1 rue
B. Pascal, 67000 Strasbourg,
France
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13
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Ramírez FDM, Varbanov S, Bünzli JCG, Rivas-Silva JF, Ocaña-Bribiesca MA, Cortés-Jácome MA, Toledo-Antonio JA. Uranyl complexes formed with a para-t-butylcalix[4]arene bearing phosphinoyl pendant arms on the lower rim. Solid and solution studies. RADIOCHIM ACTA 2012. [DOI: 10.1524/ract.2012.1925] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
The current interest in functionalized calixarenes with phosphorylated pendant arms resides in their coordination ability towards f elements and capability towards actinide/rare earth separation. Uranyl cation forms 1:1 and 1:2 (M:L) complexes with a tetra-phosphinoylated p-tert-butylcalix[4]arene, B4bL4: UO2(NO3)2(B4bL4)
n
· xH2O (n = 1, x = 2, 1; n = 2, x = 6, 2). Spectroscopic data point to the inner coordination sphere of 1 containing one monodentate nitrate anion, one water molecule and the four phosphinoylated arms bound to UO2
2+ while in 2, uranyl is only coordinated to calixarene ligands. In both cases the U(VI) ion is 8-coordinate. Uranyl complexes display enhanced metal-centred luminescence due to energy transfer from the calixarene ligands; the luminescence decays are bi-exponential with associated lifetimes in the ranges 220 μs <τ
s <250 μs and 630 μs <τ
L < 640 μs, pointing to the presence of two species with differently coordinated calixarene, as substantiated by a XPS study of U(4f
5/2,7/2), O(1s) and P(2p) levels on solid state samples. The extraction study of UO2
2+ cation and trivalent rare-earth (Y, La, Eu) ions from acidic nitrate media by B4bL4 in chloroform shows the uranyl cation being much more extracted than rare earths.
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Affiliation(s)
| | - S. Varbanov
- Bulgarian Academy of Sciences, Institute of Organic Chemistry with Center of Phot, 1113 Sofia, Bulgarien
| | - J.-C. G. Bünzli
- Ecole polytechnique Fédérale de Lausanne, Institute of Chemical Sciences and Engineering, Lausanne, Schweiz
| | | | | | - M. A. Cortés-Jácome
- Instituto Mexicano del Petróleo, Programa de Ingenierá Molecular, D. F. 7730, Mexiko
| | - J. A. Toledo-Antonio
- Instituto Mexicano del Petróleo, Programa de Ingenierá Molecular, D. F. 7730, Mexiko
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de María Ramírez F, Varbanov S, Bünzli JCG, Scopelliti R. 5f-Element complexes with a p-tert-butylcalix[4]arene bearing phosphinoyl pendant arms: Separation from rare earths and structural studies. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.08.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Robbins DW, Hartwig JF. A simple, multidimensional approach to high-throughput discovery of catalytic reactions. Science 2011; 333:1423-7. [PMID: 21903809 PMCID: PMC3261636 DOI: 10.1126/science.1207922] [Citation(s) in RCA: 187] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Transition metal complexes catalyze many important reactions that are employed in medicine, materials science, and energy production. Although high-throughput methods for the discovery of catalysts that would mirror related approaches for the discovery of medicinally active compounds have been the focus of much attention, these methods have not been sufficiently general or accessible to typical synthetic laboratories to be adopted widely. We report a method to evaluate a broad range of catalysts for potential coupling reactions with the use of simple laboratory equipment. Specifically, we screen an array of catalysts and ligands with a diverse mixture of substrates and then use mass spectrometry to identify reaction products that, by design, exceed the mass of any single substrate. With this method, we discovered a copper-catalyzed alkyne hydroamination and two nickel-catalyzed hydroarylation reactions, each of which displays excellent functional-group tolerance.
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Affiliation(s)
- Daniel W. Robbins
- Department of Chemistry, University of Illinois, Urbana-Champaign, Urbana, IL 61801, USA
| | - John F. Hartwig
- Department of Chemistry, University of Illinois, Urbana-Champaign, Urbana, IL 61801, USA
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16
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Aladzheva IM, Bykhovskaya OV, Nelyubina YV, Klemenkova ZS, Petrovskii PV, Odinets IL. Uranium complexes of cyclic O,O-bidentate ligands with the P–N–P backbone. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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The unusual stability of [NpO2Cl4]2−: Synthesis and characterisation of [NpO2(DPPMO2)2Cl]2[NpO2Cl4] and [Ph3PNH2]2[NpO2Cl4]. CR CHIM 2010. [DOI: 10.1016/j.crci.2010.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Metal complexes of the third-generation quinolone antimicrobial drug sparfloxacin: Structure and biological evaluation. J Inorg Biochem 2010; 104:455-66. [DOI: 10.1016/j.jinorgbio.2009.12.019] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 12/22/2009] [Indexed: 11/18/2022]
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19
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Thuéry P. Lanthanide Complexes with Cucurbit[n]urils (n = 5, 6, 7) and Perrhenate Ligands: New Examples of Encapsulation of Perrhenate Anions. Inorg Chem 2009; 48:4497-513. [DOI: 10.1021/ic900328z] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pierre Thuéry
- CEA, IRAMIS, SIS2M (CNRS URA 331), LCCEf, Bât. 125, F-91191 Gif-sur-Yvette, France
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20
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Cornet SM, May I, Redmond MP, Selvage AJ, Sharrad CA, Rosnel O. Coordination of bistriflimide and triflate to the uranyl bis(diphenylphosphino)methane dication, {UO2(DPPMO2)2}2+. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.10.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Thuéry P. Uranyl-Lanthanide Heterometallic Complexes with Cucurbit[6]uril and Perrhenate Ligands. Inorg Chem 2009; 48:825-7. [DOI: 10.1021/ic802270n] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pierre Thuéry
- CEA, IRAMIS, SCM (CNRS URA 331), Bât. 125, F-91191 Gif-sur-Yvette, France
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22
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Peretrukhin VF, Moisy F, Maslennikov AG, Simonoff M, Tsivadze AY, German KE, David F, Fourest B, Sergeant C, Lecomte M. Physicochemical behavior of uranium and technetium in some new stages of the nuclear fuel cycle. RUSS J GEN CHEM+ 2008. [DOI: 10.1134/s107036320805037x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Fedosseev A, Grigoriev M, Charushnikova I, Budantseva N, Starikova Z, Moisy P. Synthesis, crystal structure and some properties of new perrhenate and pertechnetate complexes of Nd3+ and Am3+ with 2,6-bis(tetramethylfurano)-1,2,4-triazin-3-yl)-pyridine, tris(2-pyridylmethyl)amine and N,N′-tetraethylmalonamide. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.12.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Efthimiadou EK, Karaliota A, Psomas G. Mononuclear metal complexes of the second-generation quinolone antibacterial agent enrofloxacin: Synthesis, structure, antibacterial activity and interaction with DNA. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.02.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Synthesis, characterization and DNA-binding of the mononuclear dioxouranium(VI) complex with ciprofloxacin. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.08.043] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Bühl M, Golubnychiy V. Density-functional computation of (99)Tc NMR chemical shifts. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2008; 46 Suppl 1:S36-S44. [PMID: 18855338 DOI: 10.1002/mrc.2276] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
99Tc chemical shifts of TcO4(-), TcH9(2-), TcOF5, TcO2F4(-), TcOCl4(-), Tc2(CO)10, and Tc(CO)3L3(+) (L = CO, MeCN, H2O) are computed using geometries optimized with the gradient-corrected BP86 and hybrid B3P86 density functionals, at the gauge-including atomic orbitals (GIAO), -BPW91 and -B3LYP levels. For this set of compounds, substituent effects on delta(99Tc) are better described with the pure BPW91 functional than with B3LYP, in contrast to most other transition-metal chemical shifts studied so far. A rough, qualitative correlation is found between computed electric-field gradients at the Tc nuclei and the corresponding 99Tc NMR line widths. Thermal and solvation effects on magnetic shielding constants of aqueous TcO4(-), as assessed by averaging these properties over trajectories from Car-Parrinello molecular dynamics simulations, are indicated to be small and comparable to those of MnO4(-). Complexation to aqueous uranyl, UO2(2+), is predicted to affect delta(99Tc) of TcO4(-) only slightly; somewhat larger complexation shifts are obtained for the oxygen nuclei of pertechnetate, suggesting that 17O NMR could be a useful probe for the extent of association between both radionuclides in solution.
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Affiliation(s)
- Michael Bühl
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY169ST, UK.
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Tarushi A, Efthimiadou EK, Christofis P, Psomas G. Neutral mononuclear dioxomolybdenum(VI) and dioxouranium(VI) complexes of oxolinic acid: Characterization and biological evaluation. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.05.041] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Affiliation(s)
- Oxana V. Karimova
- Department of Civil Engineering and Geological Sciences, 156 Fitzpatrick Hall, University of Notre Dame, Notre Dame, Indiana 46556, and Chemistry Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439
| | - Peter C. Burns
- Department of Civil Engineering and Geological Sciences, 156 Fitzpatrick Hall, University of Notre Dame, Notre Dame, Indiana 46556, and Chemistry Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439
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Bühl M, Golubnychiy V. Binding of Pertechnetate to Uranyl(VI) in Aqueous Solution. A Density Functional Theory Molecular Dynamics Study. Inorg Chem 2007; 46:8129-31. [PMID: 17784755 DOI: 10.1021/ic701431u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
According to constrained Car-Parrinello molecular dynamics simulations and thermodynamic integration, the free binding energy between uranyl hydrate and pertechnetate in aqueous solution is significantly lower than that between uranyl and nitrate, namely, by 1.7 kcal mol(-1). This is the first study of the differential binding of these two ligands to uranyl, which can have implications for the separability of uranium and technetium during the reprocessing of nuclear waste.
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Affiliation(s)
- Michael Bühl
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany.
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John GH, May I, Sarsfield MJ, Collison D, Helliwell M. Dimeric uranyl complexes with bridging perrhenates. Dalton Trans 2007:1603-10. [PMID: 17426862 DOI: 10.1039/b614481k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction between [UO2(ReO4)2.H(2)O] and two equivalents of either tri-n-butyl phosphine oxide (TBPO) or tri-iso-butyl phosphate (TiBP) results in the formation of [UO2(mu2-ReO4)(ReO4)(TBPO)2]2 (1) and [UO2(mu2-ReO4)(ReO4)(TiBP)2]2 (2) respectively. Both complexes crystallise as two structurally similar centrosymmetric dimers, the cores containing two uranyl moieties linked by bridging perrhenates. Two P=O donor ligands and one monodenatate perrhenate complete the pentagonal bipyramidal coordination sphere at each metal centre. Both complexes have also been characterised in the solid state by vibrational and absorption spectroscopy. Solution spectroscopic characterisation indicates that both perrhenate and phosphine oxide (1) or phosphate (2) remain coordinated, although it is not possible to state conclusively that the dimeric species remain intact. A low resolution structural study of a minor product from the reaction that yielded revealed a monomeric complex with only monodentate perrhenate coordination, [UO2(ReO4)2(H2O)(TiBP)2] (2'). These results represent the first structural evidence for the bridging coordination mode of perrhenate on coordination to an actinide and yields further insight into the possible solvent phase pertechnetate complexes that may exist in PUREX process phosphate rich solvent.
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Affiliation(s)
- Gordon H John
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, Manchester M13 9PL, UK
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Kannan S, Moody MA, Barnes CL, Duval PB. Fluoride Abstraction and Reversible Photochemical Reduction of Cationic Uranyl(VI) Phosphine Oxide Complexes. Inorg Chem 2006; 45:9206-12. [PMID: 17083218 DOI: 10.1021/ic060742e] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The syntheses, structural and spectroscopic characterization, fluoride abstraction reactions, and photochemical reactivity of cationic uranyl(VI) phosphine oxide complexes are described. [UO2(OPPh3)4][X]2 (1a, X = OTf; 1b, X = BF4) and [UO2(dppmo)2(OPPh3)][X]2 (2a, X = OTf; 2b, X = BF(4)) are prepared from the corresponding uranyl(VI) chloride precursor and 2 equiv each of AgX and phosphine oxide. The BF4- compounds 1b and 2b are prone to fluoride abstraction reactions in methanol, leading to dinuclear fluoride-bridged uranyl(VI) complexes. Fluoride abstraction of 2b in methanol generates two structural isomers of the fluoride-bridged uranyl(VI) dimer [(UO2(dppmo)2)2(mu-F)][BF4]3 (4), both of which have been structurally characterized. In the major isomer 4C, the four dppmo ligands are all chelating, while in the minor isomer 4B, two of the dppmo ligands bridge adjacent uranyl(VI) centers. Photolysis of 2b in methanol proceeds through 4 to form the uranium(IV) fluoride complex [UO2F2(dppmo)3][BF4]2 (5), involving another fluoride abstraction step. X-ray crystallography shows 5 to be a rare example of a structurally characterized uranium(IV) complex possessing terminal U-F bonds. Complex 5 reverts to 4 in solution upon exposure to air.
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Affiliation(s)
- Shanmugaperumal Kannan
- Department of Chemistry, University of Missouri-Columbia, 601 South College Avenue, Columbia, Missouri 65211, USA
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Ephritikhine M. The vitality of uranium molecular chemistry at the dawn of the XXIst century. Dalton Trans 2006:2501-16. [PMID: 16718334 DOI: 10.1039/b603463b] [Citation(s) in RCA: 264] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intent of this Dalton Perspective is to highlight the recent advances in uranium molecular chemistry, with the results reported during the 2000-2006 period. This discipline is currently witnessing an impressive development, together with the theoretical chemistry and solid-state chemistry of the f-elements, and its face has profoundly changed, revealing unsuspected structural and reactivity features. This progress required and was facilitated by the use of new precursors. Studies of low-valent compounds gave a better insight into lanthanide(III)/actinide(III) differentiation and led to the discovery of unusual reactions, including activation of small molecules. A number of tetravalent uranium complexes, in particular polynuclear compounds, have been synthesized, which exhibit exciting structures and physicochemical properties. The potential of uranium(III) and uranium(IV) complexes in catalysis has been confirmed. The uranyl complexes, from mononuclear species to supramolecular assemblies, reveal a variety of novel structures, changing the generally accepted ideas on the coordination geometry and the stability of the UO2(2+) ion.
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Affiliation(s)
- Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, Laboratoire Claude Fréjacques (CNRS URA 331), CEA/Saclay, 91191, Gif-sur-Yvette, France.
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RAFIZADEH M, HOSEINZADEH F, AMANI V. Crystal Structure of a Novel Polymer of Dioxo tetrakis(.MU.-dimethyl-phosphato) Dimethyl-sulfoxide Uranium(VI) Complex, C6H18P2O11SU. ACTA ACUST UNITED AC 2006. [DOI: 10.2116/analscix.22.x3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | | | - Vahid AMANI
- Department of chemistry, Teacher training University
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Sutton AD, May I, Sharrad CA, Sarsfield MJ, Helliwell M. The coordination of perrhenate and pertechnetate to thorium(iv) in the presence of phosphine oxide or phosphate ligands. Dalton Trans 2006:5734-42. [PMID: 17146538 DOI: 10.1039/b611046k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of thorium(IV) perrhenato- and pertechnetato-complexes with P[double bond, length as m-dash]O donor ligands have been prepared and characterised both in the solid state and in solution. Isostructural complexes of general formula [Th(MO(4))(4)(L)(4)], where M = Re or Tc and L = triethylphosphate (TEP) (2 and 7), tri-iso-butylphosphate (TiBP) (3 and 8) and tri-n-butylphosphine oxide (TBPO) (4 and 9) have been prepared from the novel starting materials [Th(ReO(4))(4)] x 4H(2)O (1) and [Th(TcO(4))(4)] x 4H(2)O (6). The reaction of or with triphenylphosphine oxide (TPPO) in MeOH has also led to the synthesis of [Th(MO(4))(3)(TPPO)(3)(OCH(3))(HOCH(3))] (M = Re (5) or Tc (10)). While the structural characterisation of 4 and 9 has been previously described, we report for the first time the structural characterisation of 2 and 5, with a partial structural refinement of 3. Vibrational spectroscopic analysis confirms that the Tc complexes not characterised by single crystal X-ray diffraction are indeed isostructural with the perrhenate complexes with the same P[double bond, length as m-dash]O donor ligand. In all cases, monodentate coordination of the Group 7 tetraoxo anion is observed. (31)P NMR spectroscopy indicates that in all the phosphine oxide-based complexes there is one dominant solution species. For the phosphate based systems, the presence of pertechnetate appears to inhibit P[double bond, length as m-dash]O donor ligand complexation in solution, whereas a significant proportion of each phosphate remains coordinated to Th(IV) when perrhenate is present as the counter ligand. These results give some indication as to the mechanism of pertechnetate co-extraction with tetravalent cations in the presence of tri-n-butyl phosphate in the Plutonium and Uranium Recovery by Extraction (PUREX) process.
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Affiliation(s)
- Andrew D Sutton
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, Manchester, UKM13 9PL.
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John GH, May I, Sharrad CA, Sutton AD, Collison D, Helliwell M, Sarsfield MJ. The Synthesis, Structural, and Spectroscopic Characterization of Uranium(IV) Perrhenate Complexes. Inorg Chem 2005; 44:7606-15. [PMID: 16212387 DOI: 10.1021/ic0507971] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis, structural, and spectroscopic characterization of a series of uranium(IV)-perrhenato complexes. Three isostructural complexes with general formula [U(ReO4)4(L)4] (where L = tri-n-butylphosphine oxide/TBPO (2), triethyl phosphate/TEP (3), or tri-iso-butyl phosphate/TiBP (4)), have been synthesized, both through the photoreduction of ethanolic {UO2}2+ solutions and also via a novel U(IV) starting material, U(ReO4)4.5H2O (1). Compound 1 has also been used in the preparation of [U(ReO4)4(TPPO)3(CH3CN)].2CH3CN (5) and [U(ReO4)(DPPMO2)3(OH)][ReO4]2.2CH3CN (6), where TPPO represents triphenylphosphine oxide and DPPMO2 represents bis(diphenylphosphino)methane dioxide. All six complexes have been spectroscopically characterized using NMR, UV-vis-NIR, and IR techniques, with 2, 3, 5, and 6 also fully structurally characterized. The U atoms in compounds 2-6 all exhibit eight-coordinate geometry with up to four perrhenate groups in addition to three (DPPMO2 and TPPO) or four (TEP, TiBP, TBPO) coordinated organic ligands. In the case of compounds 5 and 6, the coordination of eight ligands to the U(IV) center is completed by the binding of a solvent molecule (CH3CN) and OH-, respectively. Solid-state physical analysis (elemental and thermogravimetric) and infrared spectroscopy are in agreement with the structural studies. The crystallographic data suggest that the strength of the U(IV)-O-donor ligand bonds decreases across the series R3PO > [ReO4]- > (RO)3PO. Solution-state IR and 31P NMR spectroscopy appear to be in agreement with these solid-state results.
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Affiliation(s)
- Gordon H John
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, United Kingdom
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Synthesis, structural and spectroscopic characterisation of three di-μ-fluoro-bis[dioxouranyl] complexes. Polyhedron 2004. [DOI: 10.1016/j.poly.2004.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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