1
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Yuan X, Severo Pereira Gomes A. Reassessing the potential of TlCl for laser cooling experiments via four-component correlated electronic structure calculations. J Chem Phys 2022; 157:074313. [DOI: 10.1063/5.0092620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The TlCl molecule has previously been investigated theoretically and proposed as promising candidates for laser cooling searches [X. Yuan et. al. J. Chem. Phys., 149, 094306, 2018]. From these results, the cooling process, which would proceed by transitions between a3Π+0 and X1Σ+0 states, had as potential bottleneck the long lifetime (6.04 μs) of the excited state a3Π+0 , that would prohibit experimentally control the slowing region. Here, we revisit this system by employing four-component Multireference Configuration Interaction (MRCI) calculations and investigate the effect of such approaches on the calculated transition momentsbetween a3Π+0 and a3Π1 excited states of TlCl as well as TlF, the latter serving as a benchmark between theory and experiment. Wherever possible, MRCI results have been cross-validated by, and turned out to be consistent with, four-component equation of motion coupled-cluster (EOM-CC) and polarization propagator (PP) calculations. We find that the results of TlF are very closed to experiment values, while for TlCl thelifetime of the a3Π+0 state is now estimated to be 175 ns, which is much shorter than previous calculations indicated, thus yielding a different, more favorable cooling dynamics. By solving the rate-equation numerically, we provide evidence that TlCl could have cooling properties similar to those of TlF. Our investigations also point to the potential benefits of enhancing the stimulated radiation in optical cycle to improve cooling efficiency.
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Affiliation(s)
- Xiang Yuan
- University of Lille 1 Faculty of Physics, France
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2
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Raposo-Hernández G, Martínez JM, Pappalardo RR, Den Auwer C, Sánchez Marcos E. A Coupled EXAFS-Molecular Dynamics Study on PuO 2+ and NpO 2+ Hydration: The Importance of Electron Correlation in Force-Field Building. Inorg Chem 2022; 61:8703-8714. [PMID: 35616567 PMCID: PMC9199009 DOI: 10.1021/acs.inorgchem.2c00461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The physicochemical properties of the monovalent actinyl cations, PuO2+ and NpO2+, in water have been studied by means of classical molecular dynamic simulations. A specific set of cation-water intermolecular potentials based on ab initio potential energy surfaces has been built on the basis of the hydrated ion concept. The TIP4P water model was adopted. Given the paramagnetic character of these actinyls, the cation-water interaction energies were computed from highly correlated wave functions using the NEVPT2 method. It is shown that the multideterminantal character of the wave function has a relevant effect on the main distances of the hydrated molecular cations. Several structural, dynamical, and energetic properties of the aqueous solutions have been obtained and analyzed. Structural RDF analysis gives An-Oyl distances of 1.82 and 1.84 Å and An-O(water) distances of 2.51 and 2.53 Å for PuO2+ and NpO2+ in water, respectively. Experimental EXAFS spectra from dilute aqueous solutions of PuO2+ and NpO2+ are revisited and analyzed, assuming tetra- and pentahydration of the actinyl cations. Simulated EXAFS spectra have been computed from the snapshots of the MD simulations. Good agreement with the experimental information available is found. The global analysis leads us to conclude that both PuO2+ and NpO2+ cations in water are stable pentahydrated aqua ions.
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Affiliation(s)
| | - José M Martínez
- Department of Physical Chemistry, University of Seville, 41012 Seville, Spain
| | - Rafael R Pappalardo
- Department of Physical Chemistry, University of Seville, 41012 Seville, Spain
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3
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Pototschnig JV, Dyall KG, Visscher L, Gomes ASP. Electronic spectra of ytterbium fluoride from relativistic electronic structure calculations. Phys Chem Chem Phys 2021; 23:22330-22343. [PMID: 34596656 PMCID: PMC8514048 DOI: 10.1039/d1cp03701c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/23/2021] [Indexed: 11/21/2022]
Abstract
We report an investigation of the low-lying excited states of the YbF molecule-a candidate molecule for experimental measurements of the electron electric dipole moment-with 2-component based multi-reference configuration interaction (MRCI), equation of motion coupled cluster (EOM-CCSD) and the extrapolated intermediate Hamiltonian Fock-space coupled cluster (XIHFS-CCSD). Specifically, we address the question of the nature of these low-lying states in terms of configurations containing filled or partially-filled Yb 4f shells. We show that while it does not appear possible to carry out calculations with both kinds of configurations contained in the same active space, reliable information can be extracted from different sectors of Fock space-that is, by performing electron attachment and detachment IHFS-CCSD and EOM-CCSD calculation on the closed-shell YbF+ and YbF- species, respectively. From these calculations we predict Ω = 1/2, 3/2 states, arising from the 4f13σ26s, 4f145d1/6p1, and 4f135d1σ16s configurations to be able to interact as they appear in the same energy range around the ground-state equilibrium geometry. As these states are generated from different sectors of Fock space, they are almost orthogonal and provide complementary descriptions of parts of the excited state manifold. To obtain a comprehensive picture, we introduce a simple adiabatization model to extract energies of interacting Ω = 1/2, 3/2 states that can be compared to experimental observations.
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Affiliation(s)
- Johann V Pototschnig
- Institut für Experimentalphysik, Technische Universität Graz, Petersgasse 16, 8010 Graz, Austria.
- Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands.
| | - Kenneth G Dyall
- Dirac Solutions, 10527 NW Lost Park Drive, Portland, OR 97229, USA.
| | - Lucas Visscher
- Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands.
| | - André Severo Pereira Gomes
- Université de Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers, Atomes et Molécules, F-59000 Lille, France.
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4
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Ryzhkov MV, Enyashin AN, Delley B. Plutonium complexes in water: new approach to ab initio modeling. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Geometry optimization and the electronic structure calculations of Pu
Z+ complexes (Z = 3–6) in water solution have been performed, within the framework of the DMol3 and Relativistic Discrete-Variational (RDV) methods. For the simulation of Pu
Z+ molecular environment in aqueous solution we used 22 and 32 water molecules randomly distributed around cation. To model the effect of bulk solvent environment we used COSMO (Conductor-like Screening Model) potential for water (ε = 78.54). The obtained results showed that this approach allows the modeling of water dissociation and the formation of hydrolysis products. Our previously suggested scheme for the calculation of interaction energies between selected fragments of multi-molecular systems provides the quantitative estimation of the interaction strengths between plutonium in various oxidation states and each ligand in the first and second coordination shells in water solution.
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Affiliation(s)
- Mikhail V. Ryzhkov
- Institute of Solid State Chemistry, Ural Division of the Russian Academy of Science , Ekaterinburg , Russia
| | - Andrei N. Enyashin
- Institute of Solid State Chemistry, Ural Division of the Russian Academy of Science , Ekaterinburg , Russia
| | - Bernard Delley
- Paul Scherrer Institut WHGA 123 , CH-5232 , Villigen PSI , Switzerland
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5
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Sergentu DC, Duignan TJ, Autschbach J. Ab Initio Study of Covalency in the Ground versus Core-Excited States and X-ray Absorption Spectra of Actinide Complexes. J Phys Chem Lett 2018; 9:5583-5591. [PMID: 30180572 DOI: 10.1021/acs.jpclett.8b02412] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Relativistic multireference ab initio wave function calculations within the restricted active space (RAS) framework were performed to calculate metal and ligand X-ray absorption (XAS) near-edge spectroscopy (XANES) intensities for the metal M4,5 edges of [PuO2(H2O)5]2+, [AnVIO2]2+ (An = U, Np, Pu), and [AmCl6]3- and the Cl K edge of the Am complex. The extent of An(5f)-ligand bonding was determined via natural localized molecular orbital analyses of the relevant spin-orbit coupled multireference states. The calculated spectra are in good agreement with experiments and allow a detailed assignment of the observed spectral features. The XANES M4,5-edge spectra are representative of the actinide orbital covalency in the probed core-excited states, which may be different from the ground-state covalency. An assignment of ground-state An orbital covalency based on XAS spectra should therefore be made with caution.
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Affiliation(s)
- Dumitru-Claudiu Sergentu
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Thomas J Duignan
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
| | - Jochen Autschbach
- Department of Chemistry , University at Buffalo, The State University of New York , Buffalo , New York 14260-3000 , United States
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6
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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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7
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Gendron F, Autschbach J. Puzzling Lack of Temperature Dependence of the PuO 2 Magnetic Susceptibility Explained According to Ab Initio Wave Function Calculations. J Phys Chem Lett 2017; 8:673-678. [PMID: 28112941 DOI: 10.1021/acs.jpclett.6b02968] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The electronic structure and the magnetic properties of solid PuO2 are investigated by wave function theory calculations, using a relativistic complete active space (CAS) approach including spin-orbit coupling. The experimental magnetic susceptibility is well reproduced by calculations for an embedded PuO812- cluster model. The calculations indicate that the surprising lack of temperature dependence of the magnetic susceptibility χ of solid PuO2 can be rationalized based on the properties of a single Pu4+ ion in the cubic ligand field of the surrounding oxygen ions. Below ∼300 K, the only populated state is the nonmagnetic ground state, leading to standard temperature-independent paramagnetism (TIP). Above 300 K, there is an almost perfect cancellation of temperature-dependent contributions to χ that depends delicately on the mixing of ion levels in the electronic states, their relative energies, and the magnetic coupling between them.
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Affiliation(s)
- Frédéric Gendron
- Department of Chemistry, University at Buffalo, State University of New York , Buffalo, New York 14260-3000, United States
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York , Buffalo, New York 14260-3000, United States
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8
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Autillo M, Guerin L, Guillaumont D, Moisy P, Bolvin H, Berthon C. Paramagnetism of Aqueous Actinide Cations. Part II: Theoretical Aspects and New Measurements on An(IV). Inorg Chem 2016; 55:12149-12157. [DOI: 10.1021/acs.inorgchem.6b01449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthieu Autillo
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, Service de modélisation et de chimie des procédés et de Séparation, SMCS LILA, F-30207 Bagnols sur Cèze, France
| | - Laetitia Guerin
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, Service de modélisation et de chimie des procédés et de Séparation, SMCS LILA, F-30207 Bagnols sur Cèze, France
| | - Dominique Guillaumont
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, Service de modélisation et de chimie des procédés et de Séparation, SMCS LILA, F-30207 Bagnols sur Cèze, France
| | - Philippe Moisy
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, Service de modélisation et de chimie des procédés et de Séparation, SMCS LILA, F-30207 Bagnols sur Cèze, France
| | - Hélène Bolvin
- Laboratoire
de Physique et de Chimie Quantiques, Université Toulouse 3, 118 Route
de Narbonne, 31062 Toulouse, France
| | - Claude Berthon
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, Service de modélisation et de chimie des procédés et de Séparation, SMCS LILA, F-30207 Bagnols sur Cèze, France
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9
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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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10
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Edelstein NM. Reanalysis of the Aqueous Spectrum of the Neptunyl(V) [NpO2+] Ion. J Phys Chem A 2015; 119:11146-53. [DOI: 10.1021/acs.jpca.5b08576] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Norman M. Edelstein
- Chemical Sciences Division,
MS 70A-1150, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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11
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Kovács A, Infante I. Theoretical study of the electronic spectra of neutral and cationic NpO and NpO2. J Chem Phys 2015; 143:074305. [PMID: 26298132 DOI: 10.1063/1.4928588] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The electronic spectra of neutral NpO and NpO2 as well as of their mono- (NpO(+), NpO2(+)) and dications (NpO(2+), NpO2(2+)) were studied using multiconfigurational relativistic quantum chemical calculations at the complete active space self-consistent field/CASPT2 level of theory taking into account spin-orbit coupling. The active space included 16 orbitals: all the 7s, 6d, and 5f orbitals of neptunium together with selected orbitals of oxygen. The vertical excitation energies on the ground state geometries have been computed up to ca. 35,000 cm(-1). The gas-phase electronic spectra were evaluated on the basis of the computed Einstein coefficients at 298 K and 3000 K. The computed vertical transition energies show good agreement with previous condensed-phase results on NpO2(+) and NpO2(2+).
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Affiliation(s)
- Attila Kovács
- European Commission, Joint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125 Karlsruhe, Germany
| | - Ivan Infante
- Department of Theoretical Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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12
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13
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Gendron F, Pritchard B, Bolvin H, Autschbach J. Magnetic Resonance Properties of Actinyl Carbonate Complexes and Plutonyl(VI)-tris-nitrate. Inorg Chem 2014; 53:8577-92. [DOI: 10.1021/ic501168a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Frédéric Gendron
- Department
of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
| | - Ben Pritchard
- Department
of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
| | - Hélène Bolvin
- Laboratoire
de Physique et de Chimie Quantiques, Universite Toulouse 3, 118 Route
de Narbonne, 31062 Toulouse, France
| | - Jochen Autschbach
- Department
of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
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14
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Hashem E, Platts JA, Hartl F, Lorusso G, Evangelisti M, Schulzke C, Baker RJ. Thiocyanate complexes of uranium in multiple oxidation states: a combined structural, magnetic, spectroscopic, spectroelectrochemical, and theoretical study. Inorg Chem 2014; 53:8624-37. [PMID: 25072532 DOI: 10.1021/ic501236j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A comprehensive study of the complexes A4[U(NCS)8] (A = Cs, Et4N, (n)Bu4N) and A3[UO2(NCS)5] (A = Cs, Et4N) is described, with the crystal structures of [(n)Bu4N]4[U(NCS)8]·2MeCN and Cs3[UO2(NCS)5]·O0.5 reported. The magnetic properties of square antiprismatic Cs4[U(NCS)8] and cubic [Et4N]4[U(NCS)8] have been probed by SQUID magnetometry. The geometry has an important impact on the low-temperature magnetic moments: at 2 K, μeff = 1.21 μB and 0.53 μB, respectively. Electronic absorption and photoluminescence spectra of the uranium(IV) compounds have been measured. The redox chemistry of [Et4N]4[U(NCS)8] has been explored using IR and UV-vis spectroelectrochemical methods. Reversible 1-electron oxidation of one of the coordinated thiocyanate ligands occurs at +0.22 V vs Fc/Fc(+), followed by an irreversible oxidation to form dithiocyanogen (NCS)2 which upon back reduction regenerates thiocyanate anions coordinating to UO2(2+). NBO calculations agree with the experimental spectra, suggesting that the initial electron loss of [U(NCS)8](4-) is delocalized over all NCS(-) ligands. Reduction of the uranyl(VI) complex [Et4N]3[UO2(NCS)5] to uranyl(V) is accompanied by immediate disproportionation and has only been studied by DFT methods. The bonding in [An(NCS)8](4-) (An = Th, U) and [UO2(NCS)5](3-) has been explored by a combination of DFT and QTAIM analysis, and the U-N bonds are predominantly ionic, with the uranyl(V) species more ionic that the uranyl(VI) ion. Additionally, the U(IV)-NCS ion is more ionic than what was found for U(IV)-Cl complexes.
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Affiliation(s)
- Emtithal Hashem
- School of Chemistry, University of Dublin, Trinity College , College Green, Dublin 2, Ireland
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15
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Su J, Wang Z, Pan D, Li J. Excited States and Luminescent Properties of UO2F2 and Its Solvated Complexes in Aqueous Solution. Inorg Chem 2014; 53:7340-50. [DOI: 10.1021/ic5006852] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing Su
- Division
of Nuclear Materials Science and Engineering, Shanghai Institute of
Applied Physics, and Key Laboratory of Nuclear Radiation and Nuclear
Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China
- Department
of Chemistry and Laboratory of Organic Optoelectronics and Molecular
Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Zheming Wang
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest
National Laboratory, P. O. Box 999, Richland, Washington 99352, United States
| | - Duoqiang Pan
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest
National Laboratory, P. O. Box 999, Richland, Washington 99352, United States
- Radiochemistry
Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, Gansu, China
| | - Jun Li
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest
National Laboratory, P. O. Box 999, Richland, Washington 99352, United States
- Department
of Chemistry and Laboratory of Organic Optoelectronics and Molecular
Engineering of the Ministry of Education, Tsinghua University, Beijing 100084, China
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16
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Autillo M, Kaden P, Geist A, Guerin L, Moisy P, Berthon C. The influence of radioactive decay on actinide magnetic susceptibility measurements obtained using the Evans method. Phys Chem Chem Phys 2014; 16:8608-14. [PMID: 24675919 DOI: 10.1039/c4cp00724g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to explain the higher magnetic susceptibility of some aquo actinide ions than predicted by Hund's rules, the molar magnetic susceptibilities of two americium isotopes ((241)Am and (243)Am) were measured using the Evans method. The results obtained show a growing change in the magnetic susceptibility with α and also a β(-) activity increase in solution. β(-) particle effects appear to be stronger than radicals formed by α particles on the experimental values. The temperature dependence of Am(iii) magnetic susceptibility has been observed but from experiments carried out here, it appears to be difficult to prove whether this effect arises from radicals or β(-). Finally, magnetic susceptibilities of americium recorded in different media (HClO4, HCl, and HNO3) have been compared to alpha and beta emissions' impact.
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Affiliation(s)
- Matthieu Autillo
- CEA, Nuclear Energy Division, Radio Chemistry & Processes Department, DRCP, BP 17171, F-30207 Bagnols sur Cèze, France.
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17
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Wall TF, Jan S, Autillo M, Nash KL, Guerin L, Naour CL, Moisy P, Berthon C. Paramagnetism of Aqueous Actinide Cations. Part I: Perchloric Acid Media. Inorg Chem 2014; 53:2450-9. [DOI: 10.1021/ic402371x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas F. Wall
- Department
of Chemistry, Washington State University, Pullman, Washington 99163, United States
| | - Steve Jan
- Nuclear Energy Division, RadioChemistry & Processes Department, Modelisation and Chemistry of Separation Processes Service, Ligand Actinide Interaction Laboratory, CEA, F-30207 Bagnols-sur-Cèze, France
| | - Matthieu Autillo
- Nuclear Energy Division, RadioChemistry & Processes Department, Modelisation and Chemistry of Separation Processes Service, Ligand Actinide Interaction Laboratory, CEA, F-30207 Bagnols-sur-Cèze, France
| | - Kenneth L. Nash
- Department
of Chemistry, Washington State University, Pullman, Washington 99163, United States
| | - Laetitia Guerin
- Nuclear Energy Division, RadioChemistry & Processes Department, Modelisation and Chemistry of Separation Processes Service, Ligand Actinide Interaction Laboratory, CEA, F-30207 Bagnols-sur-Cèze, France
| | - Claire Le Naour
- IPN Orsay, University Paris XI, rue Georges
Clemenceau, 91406 Orsay CEDEX, France
| | - Philippe Moisy
- Nuclear Energy Division, RadioChemistry & Processes Department, CEA, F-30207 Bagnols-sur-Cèze, France
| | - Claude Berthon
- Nuclear Energy Division, RadioChemistry & Processes Department, Modelisation and Chemistry of Separation Processes Service, Ligand Actinide Interaction Laboratory, CEA, F-30207 Bagnols-sur-Cèze, France
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18
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Gomes ASP, Jacob CR, Réal F, Visscher L, Vallet V. Towards systematically improvable models for actinides in condensed phase: the electronic spectrum of uranyl in Cs2UO2Cl4 as a test case. Phys Chem Chem Phys 2013; 15:15153-62. [DOI: 10.1039/c3cp52090k] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Hashem E, Swinburne AN, Schulzke C, Evans RC, Platts JA, Kerridge A, Natrajan LS, Baker RJ. Emission spectroscopy of uranium(iv) compounds: a combined synthetic, spectroscopic and computational study. RSC Adv 2013. [DOI: 10.1039/c3ra22712j] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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D'Angelo P, Spezia R. Hydration of Lanthanoids(III) and Actinoids(III): An Experimental/Theoretical Saga. Chemistry 2012; 18:11162-78. [DOI: 10.1002/chem.201200572] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Indexed: 11/06/2022]
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21
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Natrajan LS. Developments in the photophysics and photochemistry of actinide ions and their coordination compounds. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.029] [Citation(s) in RCA: 175] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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