1
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Gao Y, Grover P, Schreckenbach G. Stabilization of hydrated Ac III cation: the role of superatom states in actinium-water bonding. Chem Sci 2021; 12:2655-2666. [PMID: 34164034 PMCID: PMC8179294 DOI: 10.1039/d0sc02342f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 01/03/2021] [Indexed: 12/02/2022] Open
Abstract
225Ac-based radiopharmaceuticals have the potential to become invaluable in designated cancer therapy. However, the limited understanding of the solution chemistry and bonding properties of actinium has hindered the development of existing and emerging targeted radiotherapeutics, which also poses a significant challenge in the discovery of new agents. Herein, we report the geometric and electronic structural properties of hydrated AcIII cations in the [AcIII(H2O) n ]3+ (n = 4-11) complexes in aqueous solution and gas-phase using density functional theory. We found that nine water molecules coordinated to the AcIII cation is the most stable complex due to an enhanced hydration Gibbs free energy. This complex adopts a closed-shell 18-electron configuration (1S 21P 61D 10) of a superatom state, which indicates a non-negligible covalent character and involves H2O → AcIII σ donation interaction between s-/p-/d-type atomic orbitals of the Ac atom and 2p atomic orbitals of the O atoms. Furthermore, potentially existing 10-coordinated complexes need to overcome an energy barrier (>0.10 eV) caused by hydrogen bonding to convert to 9-coordination. These results imply the importance of superatom states in actinide chemistry generally, and specifically in AcIII solution chemistry, and highlight the conversion mechanism between different coordination numbers.
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Affiliation(s)
- Yang Gao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China Chengdu Sichuan 610054 China
- Department of Chemistry, University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
| | - Payal Grover
- Department of Chemistry, University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
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2
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Acher E, Masella M, Vallet V, Réal F. Properties of the tetravalent actinide series in aqueous phase from a microscopic simulation self-consistent engine. Phys Chem Chem Phys 2020; 22:2343-2350. [PMID: 31932817 DOI: 10.1039/c9cp04912f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the context of nuclear fuel recycling and environmental issues, the understanding of the properties of radio-elements with various approaches remains a challenge regarding their dangerousness. Moreover, experimentally, some issues are also of importance; first, it is imperative to work at sufficiently high concentrations to reach the sensitivities of the analytical tools, however this condition often leads to precipitation for some of them; second, stabilizing specific oxidation states of some actinides remains a challenge, thus making it difficult to extract general trends across the actinide series. Complementary to experiments, modeling can be used to unbiasedly probe the actinide's properties in an aquatic environment and offers a predictive tool. We report the first molecular dynamics simulations based on homogeneously built force fields for the whole series of the tetravalent actinides in aqueous phase from ThIV to BkIV and including PuIV. The force fields used to model the interactions among the constituents include polarization and charge donation microscopic effects. They are built from a self-consistent iterative ab initio based engine that can be included in future developments as an element of a potential machine learning procedure devoted to generating accurate force fields. The comparison of our simulated hydrated actinide properties to available experimental data shows the model robustness and the relevance of our parameter assignment engine. Moreover, our simulated structural, dynamical and evolution of the hydration free energy data show that, apart from AmIV and CmIV, the actinide properties change progressively along the series.
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3
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Bhaduri A, Gardner J, Abrams CF, Graham-Brady L. Free energy calculation using space filled design and weighted reconstruction: a modified single sweep approach. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1688325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Anindya Bhaduri
- Department of Civil Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Jasmine Gardner
- Department of Chemistry – BMC, Uppsala University, Uppsala, Sweden
| | - Cameron F. Abrams
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, PA, USA
| | - Lori Graham-Brady
- Department of Civil Engineering, Johns Hopkins University, Baltimore, MD, USA
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4
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Ma J, Yang C, Han J, Yu J, Hu S, Yu H, Long X. Density Functional Theory Investigations on the Mechanism of Formation of Pa(V) Ion in Hydrous Solutions. Molecules 2019; 24:E1169. [PMID: 30934559 PMCID: PMC6471942 DOI: 10.3390/molecules24061169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 11/16/2022] Open
Abstract
Due to the enormous threat of protactinium to the environment and human health, its disposal and chemistry have long been important topics in nuclear science. [PaO(H₂O)₆]3+ is proposed as the predominant species in hydrous and acidic solutions, but little is known about its formation mechanism. In this study, density functional theory (DFT) calculations demonstrate a water coordination-proton transfer-water dissociation mechanism for the formation of PaO3+ in hydrous solutions. First, Pa(V) ion preferentially forms hydrated complexes with a coordination number of 10. Through hydrogen bonding, water molecules in the second coordination sphere easily capture two protons on the same coordinated H₂O ligand to form [PaO(H₂O)₉]3+. Water dissociation then occurs to generate the final [PaO(H₂O)₆]3+, which is the thermodynamic product of Pa(V) in hydrous solutions.
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Affiliation(s)
- Jun Ma
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China.
| | - Chuting Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China.
| | - Jun Han
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China.
| | - Jie Yu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei 230601, China.
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China.
| | - Haizhu Yu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei 230601, China.
| | - Xinggui Long
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China.
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5
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Mishra L, Sawant PD, Sundararajan M, Bandyopadhyay T. Binding of Cm(III) and Th(IV) with Human Transferrin at Serum pH: Combined QM and MD Investigations. J Phys Chem B 2019; 123:2729-2744. [PMID: 30864809 DOI: 10.1021/acs.jpcb.8b09473] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human serum transferrin (sTf) can also function as a noniron metal transporter since only 30% of it is typically saturated with a ferric ion. While this function of sTf can be fruitfully utilized for targeted delivery of certain metal therapeutics, it also runs the risk of trafficking the lethal radionuclides into cells. A large number of actinide (An) ions are known to bind to the iron sites of sTf although molecular-level understanding of their binding is unclear. Understanding the radionuclide interaction with sTf is a primary step toward future design of their decorporating agents since irrespective of the means of contamination, the radionuclides are absorbed and transported by blood before depositing into target organs. Here, we report an extensive multiscale modeling approach of two An (curium(III) and thorium(IV)) ions' binding with sTf at serum physiological pH. We find that sTf binds both the heavy ions in a closed conformation with carbonate as synergistic anions and the An-loaded sTf maintains its closed conformation even after 100 ns of equilibrium molecular dynamics (MD) simulations. MD simulations are performed in a polarizable water environment, which also incorporates electronic continuum corrections for ions via charge rescaling. The molecular details of the An coordination and An exchange free energies with iron in the interdomain cleft of the protein are evaluated through a combination of quantum mechanical (QM) and MD studies. In line with reported experimental observations, well-tempered metadynamics results of the ions' binding energetics show that An-sTf complexes are less stable than Fe-sTf. Additionally, curium(III) is found to bind more weakly than thorium(IV). The latter result might suggest relative attenuation of thorium(IV) cytotoxicity when compared with curium(III).
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6
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Yu J, Ma J, Yang C, Yu H. Binding affinity of pyridines with Am III/Cm III elucidated by density functional theory calculations. Dalton Trans 2019; 48:1613-1623. [PMID: 30629054 DOI: 10.1039/c8dt04669g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In recent decades, N-heterocyclic ligands have been extensively used in the separation of lanthanides/actinides, whereas the selective extraction of amercium or curium has been very challenging. Using density functional theory calculations, this study is devoted to the investigation of the binding affinity of a series of modelling pyridine ligands with AmIII and CmIII. The structure-property correlations between the amercium and curium systems and the binding affinity were obtained, and promising strategies for efficient separation of AmIII/CmIII were proposed.
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Affiliation(s)
- Jie Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, PR China.
| | - Jun Ma
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China.
| | - Chuting Yang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China.
| | - Haizhu Yu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, PR China.
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7
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Spezia R, Migliorati V, D’Angelo P. On the development of polarizable and Lennard-Jones force fields to study hydration structure and dynamics of actinide(III) ions based on effective ionic radii. J Chem Phys 2017; 147:161707. [DOI: 10.1063/1.4989969] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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8
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Pacaud F, Delaye JM, Charpentier T, Cormier L, Salanne M. Structural study of Na2O–B2O3–SiO2 glasses from molecular simulations using a polarizable force field. J Chem Phys 2017; 147:161711. [DOI: 10.1063/1.4992799] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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9
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Montagna M, Spezia R, Bodo E. Solvation Properties of the Actinide Ion Th(IV) in DMSO and DMSO:Water Mixtures through Polarizable Molecular Dynamics. Inorg Chem 2017; 56:11929-11937. [DOI: 10.1021/acs.inorgchem.7b01900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maria Montagna
- Chemistry Department, University of Rome “La Sapienza”, P. A. Moro 5, 00185, Rome, Italy
| | - Riccardo Spezia
- LAMBE, Université d’Evry Val d’Essonne, CEA, CNRS, Université Paris Saclay, F-91025 Evry, France
| | - Enrico Bodo
- Chemistry Department, University of Rome “La Sapienza”, P. A. Moro 5, 00185, Rome, Italy
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10
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Skanthakumar S, Jin GB, Lin J, Vallet V, Soderholm L. Linking Solution Structures and Energetics: Thorium Nitrate Complexes. J Phys Chem B 2017; 121:8577-8584. [PMID: 28817281 DOI: 10.1021/acs.jpcb.7b06567] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seeking predictive insights into how metal-ion speciation impacts solution chemistry as well as the composition and structure of solid-precipitates, thorium correlations, with both solvent and other solute ions, were quantitatively probed in a series of acidic, nitrate/perchlorate solutions held at constant ionic strength. Difference pair-distribution functions (dPDF), obtained from high-energy X-ray scattering (HEXS) data, provide unprecedented structural information on the number of Th ligating ions in solution and how they change with increasing nitrate concentration. A fit of the end member solution, Th (4 m perchloric acid and no nitrate), reveals a homoleptic Th aqua ion with 10 waters in its first coordination shell. Analyses of the acidic solutions containing nitrate reveal exclusively bidentate NO3- complexation with Th, consistent with published solid-state MIV nitrate structures, where MIV = Ce, Th, U, Np, Pu. Metrical fits of Th coordination as a function of nitrate concentration are used to calculate Th-NO3 stability constants, information important to a molecular-scale description of reaction energetics. The coordination environments of Th in solution were compared with single-crystal structures obtained from their precipitates, Th(NO3)4(H2O)4 and Th(NO3)4(H2O)3·(H2O)2. Relative stabilities of the solid-state compounds, assessed based on the results of molecular quantum chemical calculations, reveal the importance of including an accurate description of complexed waters when predicting relative energetics of dissolved ions in aqueous solution.
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Affiliation(s)
- S Skanthakumar
- Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Geng Bang Jin
- Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Jian Lin
- Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Valérie Vallet
- Université de Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules , F-59000 Lille, France
| | - L Soderholm
- Chemical Sciences and Engineering Division, Argonne National Laboratory , 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
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11
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Atta-Fynn R, Bylaska EJ, de Jong WA. Strengthening of the Coordination Shell by Counter Ions in Aqueous Th4+ Solutions. J Phys Chem A 2016; 120:10216-10222. [DOI: 10.1021/acs.jpca.6b09878] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raymond Atta-Fynn
- Department
of Physics, The University of Texas at Arlington, Arlington, Texas 76006, United States
| | - Eric J. Bylaska
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Wibe A. de Jong
- Computational
Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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12
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Gorden AEV, McKee ML. Computational Study of Reduction Potentials of Th4+ Compounds and Hydrolysis of ThO2(H2O)n, n = 1, 2, 4. J Phys Chem A 2016; 120:8169-8183. [DOI: 10.1021/acs.jpca.6b08472] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anne E. V. Gorden
- Department
of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Michael L. McKee
- Department
of Chemistry and
Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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13
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Montagna M, Jeanvoine Y, Spezia R, Bodo E. Structure, Stability, and Electronic Properties of Dimethyl Sulfoxide and Dimethyl Formammide Clusters Containing Th(4.). J Phys Chem A 2016; 120:4778-88. [PMID: 26757255 DOI: 10.1021/acs.jpca.5b12007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By using accurate density functional theory calculations, we have studied the complexes of Th(4+) with dimethyl-sulfoxide (DMSO) and dimethyl-formammide (DMF) molecules. These solvents are prototypes for oxygen-donor organic environments in which the oxygen atom is connected to S and C atom, respectively. Extended structural, energetic, and electronic structure analysis has been performed to provide a complete picture of the physical properties at the basis of the interaction of Th(4+) with the two solvents. By using a cluster grow approach, we have found that, very likely, the first solvation shell contains nine molecules in the case of DMSO, while it contains eight molecules for DMF. The theoretical results shown here are in agreement with experimental data taken from the literature.
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Affiliation(s)
- Maria Montagna
- Department of Chemistry, University of Rome "La Sapienza" , 00185 Roma, Italy
| | - Yannick Jeanvoine
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, UMR 8587 CNRS, Université d'Evry-Val-d'Essonne , 91000 Évry, France
| | - Riccardo Spezia
- Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement, UMR 8587 CNRS, Université d'Evry-Val-d'Essonne , 91000 Évry, France
| | - Enrico Bodo
- Department of Chemistry, University of Rome "La Sapienza" , 00185 Roma, Italy
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14
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Banik NL, Vallet V, Réal F, Belmecheri RM, Schimmelpfennig B, Rothe J, Marsac R, Lindqvist-Reis P, Walther C, Denecke MA, Marquardt CM. First structural characterization of Pa(iv) in aqueous solution and quantum chemical investigations of the tetravalent actinides up to Bk(IV): the evidence of a curium break. Dalton Trans 2016; 45:453-7. [PMID: 26465740 DOI: 10.1039/c5dt03560k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
More than a century after its discovery the structure of the Pa(4+) ion in acidic aqueous solution has been investigated for the first time experimentally and by quantum chemistry. The combined results of EXAFS data and quantum chemically optimized structures suggest that the Pa(4+) aqua ion has an average of nine water molecules in its first hydration sphere at a mean Pa-O distance of 2.43 Å. The data available for the early tetravalent actinide (An) elements from Th(4+) to Bk(4+) show that the An-O bonds have a pronounced electrostatic character, with bond distances following the same monotonic decreasing trend as the An(4+) ionic radii, with a decrease of the hydration number from nine to eight for the heaviest ions Cm(4+) and Bk(4+). Being the first open-shell tetravalent actinide, Pa(4+) features a coordination chemistry very similar to its successors. The electronic configuration of all open-shell systems corresponds to occupation of the valence 5f orbitals, without contribution from the 6d orbitals. Our results thus demonstrate that Pa(iv) resembles its early actinide neighbors.
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Affiliation(s)
- Nidhu lal Banik
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
| | - Valérie Vallet
- Laboratoire PhLAM, UMR-CNRS 8523, Université Lille 1 (Sciences et Technologies), F-59655 Villeneuve d'Ascq, France
| | - Florent Réal
- Laboratoire PhLAM, UMR-CNRS 8523, Université Lille 1 (Sciences et Technologies), F-59655 Villeneuve d'Ascq, France
| | - Réda Mohamed Belmecheri
- Laboratoire de Thermodynamique et Modélisation Moléculaire, Faculté de Chimie, USTHB BP 32 El-Alia, 16111 Bab-Ezzouar, Algeria
| | - Bernd Schimmelpfennig
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
| | - Jörg Rothe
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
| | - Rémi Marsac
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
| | - Patric Lindqvist-Reis
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
| | - Clemens Walther
- Institut für Radioökologie und Strahlenschutz, Leibniz Universität Hannover, Hannover, Germany
| | - Melissa A Denecke
- Dalton Nuclear Institute, The University of Manchester, Manchester, UK
| | - Christian M Marquardt
- Institut für Nukleare Entsorgung, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
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15
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Kumar N, Seminario JM. Solvation of Actinide Salts in Water Using a Polarizable Continuum Model. J Phys Chem A 2015; 119:689-703. [DOI: 10.1021/jp507613a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Narendra Kumar
- Department of Chemical Engineering, ‡Department of Materials Science and Engineering, and §Department of Electrical and Computer Engineering Texas A&M University College Station, Texas 77843, United States
| | - Jorge M. Seminario
- Department of Chemical Engineering, ‡Department of Materials Science and Engineering, and §Department of Electrical and Computer Engineering Texas A&M University College Station, Texas 77843, United States
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16
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Bodo E, Chiricotto M, Spezia R. Structural, energetic, and electronic properties of La(III)-dimethyl sulfoxide clusters. J Phys Chem A 2014; 118:11602-11. [PMID: 25405769 DOI: 10.1021/jp507312y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By using accurate density functional theory calculations, we have studied the cluster complexes of a La(3+) ion interacting with a small number of dimethyl sulfoxide (DMSO) molecules of growing size (from 1 to 12). Extended structural, energetic, and electronic structure analyses have been performed to provide a complete picture of the physical properties that are the basis of the interaction of La(III) with DMSO. Recent experimental data in the solid and liquid phase have suggested a coordination number of 8 DMSO molecules with a square antiprism geometry arranged similarly in the liquid and crystalline phases. By using a cluster approach on the La(3+)(DMSO)n gas phase isolated structures, we have found that the 8-fold geometry, albeit less regular than in the crystal, is probably the most stable cluster. Furthermore, we provide new evidence of a 9-fold complexation geometric arrangement that is competitive (at least energetically) with the 8-fold one and that might suggest the existence of transient structures with higher coordination numbers in the liquid phase.
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Affiliation(s)
- Enrico Bodo
- Department of Chemistry, University of Rome "La Sapienza" , 00185 Rome, Italy
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17
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Heinz N, Zhang J, Dolg M. Actinoid(III) Hydration—First Principle Gibbs Energies of Hydration Using High Level Correlation Methods. J Chem Theory Comput 2014; 10:5593-8. [DOI: 10.1021/ct5007339] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Norah Heinz
- Institute for Theoretical
Chemistry, Universität zu Köln, Greinstraße 4, D-50939 Cologne, Germany
| | - Jun Zhang
- Institute for Theoretical
Chemistry, Universität zu Köln, Greinstraße 4, D-50939 Cologne, Germany
| | - Michael Dolg
- Institute for Theoretical
Chemistry, Universität zu Köln, Greinstraße 4, D-50939 Cologne, Germany
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18
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Spezia R, Jeanvoine Y, Vuilleumier R. Developing polarizable potential for molecular dynamics of Cm(III)-carbonate complexes in liquid water. J Mol Model 2014; 20:2398. [DOI: 10.1007/s00894-014-2398-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 07/23/2014] [Indexed: 11/24/2022]
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