1
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Romeu JGF, Hunt ARE, de Melo GF, Peterson KA, Dixon DA. Energetic and Electronic Properties of UO 0/± and UF 0/±. J Phys Chem A 2024; 128:5586-5604. [PMID: 38954748 DOI: 10.1021/acs.jpca.4c02845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
High-level electronic structure calculations were conducted to examine the bonding and spectroscopic properties of the UO0/± and UF0/± diatomic molecules. The low-lying Ω states were described by using multireference SO-CASPT2 calculations. The adiabatic electronic affinity (AEA), adiabatic ionization energy (IE), and bond dissociation energy (BDE) were calculated at the Feller-Peterson-Dixon (FPD) level. The ground state of UO is predicted to be 5I4, and that of UF is 4I9/2. The calculated AEAs of UO and UF are 1.123 and 0.453 eV, respectively, and the corresponding IEs are 5.976 and 6.278 eV. The BDE of UO (749.5 kJ/mol) is predicted to be considerably higher than that of UF (627.2 kJ/mol), and both are higher than those predicted for UB, UC, and UN. NBO calculations show strong ionic character for the ground states of UO and UF and bond orders that range from 2 to 3 and from 1 to 2, respectively. Comparisons of the calculated properties to those of the series comprising UB, UC, and UN diatomic molecules are given.
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Affiliation(s)
- João G F Romeu
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Ashley R E Hunt
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
| | - Gabriel F de Melo
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Kirk A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
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2
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Andriola DM, Peterson KA. Coupled Cluster Study of the Heats of Formation of UF 6 and the Uranium Oxyhalides, UO 2X 2 (X = F, Cl, Br, I, and At). J Phys Chem A 2023; 127:7579-7585. [PMID: 37657073 DOI: 10.1021/acs.jpca.3c04420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
The atomization enthalpies of the U(VI) species UF6 and the uranium oxyhalides UO2X2 (X = F, Cl, Br, I, and At) were calculated using a composite relativistic Feller-Peterson-Dixon (FPD) approach based on scalar relativistic DKH3-CCSD(T) with extrapolations to the CBS limit. The inherent multideterminant nature of the U atom was mitigated by utilizing the singly charged atomic cation in all calculations with correction back to the neutral asymptote via the accurate ionization energy of the U atom. The effects of SO coupling were recovered using full 4-component CCSD(T) with contributions due to the Gaunt Hamiltonian calculated using Dirac-Hartree-Fock. The final atomization enthalpy for UF6 (752.2 kcal/mol) was within 2.5 kcal/mol of the experimental value, but unfortunately the latter carries a ±2.4 kcal/mol uncertainty that is predominantly due to the experimental uncertainty in the formation enthalpy of the U atom. The analogous value for UO2F2 (607.6 kcal/mol) was in nearly exact agreement with the experiment, but the latter has a stated experimental uncertainty of ±4.3 kcal/mol. The FPD atomization enthalpy for UO2Cl2 (540.4 kcal/mol) was within the experimental error limit of ±5.5 kcal/mol. FPD atomization energies for the non-U-containing molecules (used for reaction enthalpies) H2O and HX (X = F, Cl, Br, I, and At) were within at most 0.3 kcal/mol of their experimental values where available. The FPD atomization enthalpies, together with FPD reaction enthalpies for two different reactions, were used to determine heats of formation for all species of this work, with estimated uncertainties of ±4 kcal/mol. The calculated heat of formation for UF6 (-511.0 kcal/mol) is within 2.5 kcal/mol of the accurately known (±0.45 kcal/mol) experimental value.
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Affiliation(s)
- Devon M Andriola
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
| | - Kirk A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
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3
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de Melo GF, Dixon DA. Energetic and Electronic Properties of NpH 0/+/- and PuH 0/+/. J Phys Chem A 2023; 127:3179-3189. [PMID: 36988907 DOI: 10.1021/acs.jpca.3c00891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
High-level correlated molecular orbital theory calculations have been performed to predict the thermodynamic and electronic properties of diatomic NpH0/+/- and PuH0/+/-. The excited states up to ∼10,000 cm-1 were predicted for these molecules at the multireference SO-CASPT2 level. The inclusion of spin-orbit effects is fundamental to predict the low-lying state ordering. NpH is predicted to have a 5Π0 ground state, and PuH has a 6Π1/2 ground state at the SO-CASPT2 level. The adiabatic electron affinities (AEAs) and ionization energies (IEs) of NpH and PuH were calculated to be 0.389 and 6.156 and 0.396 and 6.296 eV, respectively, using the Feller-Peterson-Dixon approach. The AEA increases going from AcH (0.425 eV) to ThH (0.820 eV) and decreases from ThH to PuH. The IEs of Pa-Np hydrides are close to ∼6.2 eV followed by an increase of 0.14 eV to PuH (6.296 eV). The An-H bond dissociation energy (BDE) decreases from 276.4 (AcH) to 107.1 (PuH) kJ/mol; the BDE(NpH) is ∼80 kJ/mol higher than that of PuH. Natural bond orbital calculations show that the bond character for these molecules is mainly ionic, An+H-. The additional electron in NpH- and PuH- populates the 6d orbital, and NpH+ and PuH+ are formed by the removal of a 7s electron. The current work in conjunction with prior work on the AcH to UH in different charge states provides insights into how these properties change across the actinide series.
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Affiliation(s)
- Gabriel F de Melo
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35401, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35401, United States
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4
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Bross DH, Bacskay GB, Peterson KA, Ruscic B. Active Thermochemical Tables: Enthalpies of Formation of Bromo- and Iodo-Methanes, Ethenes and Ethynes. J Phys Chem A 2023; 127:704-723. [PMID: 36635235 DOI: 10.1021/acs.jpca.2c07897] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The thermochemistry of halocarbon species containing iodine and bromine is examined through an extensive interplay between new Feller-Peterson-Dixon (FPD) style composite methods and a detailed analysis of all available experimental and theoretical determinations using the thermochemical network that underlies the Active Thermochemical Tables (ATcT). From the computational viewpoint, a slower convergence of the components of composite thermochemistry methods is observed relative to species that solely contain first row elements, leading to a higher computational expense for achieving comparable levels of accuracy. Potential systematic sources of computational uncertainty are investigated, and, not surprisingly, spin-orbit coupling is found to be a critical component, particularly for iodine containing molecular species. The ATcT analysis of available experimental and theoretical determinations indicates that prior theoretical determinations have significantly larger uncertainties than originally reported, particularly in cases where molecular spin-orbit effects were ignored. Accurate and reliable heats of formation are reported for 38 halogen containing systems, based on combining the current computations with previous experimental and theoretical work via the ATcT approach.
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Affiliation(s)
- David H Bross
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - George B Bacskay
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Kirk A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Branko Ruscic
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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5
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Theoretical investigation of the structure and spectroscopy of uranium oxide species. Theor Chem Acc 2023. [DOI: 10.1007/s00214-022-02947-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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6
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Zhang C, Cheng L. Route to Chemical Accuracy for Computational Uranium Thermochemistry. J Chem Theory Comput 2022; 18:6732-6741. [PMID: 36206308 DOI: 10.1021/acs.jctc.2c00812] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Benchmark spinor-based relativistic coupled-cluster calculations for the ionization energies of the uranium atom, the uranium monoxide molecule (UO), and the uranium dioxide molecule (UO2) and for the bond dissociation energies of UO and UO2 are reported. The accuracy of these calculations in the treatments of relativistic, electron-correlation, and basis-set effects is analyzed. The intrinsic convergence of the computed results and the favorable comparison with the experimental values demonstrate the unique applicability of the spinor representation of quantum-chemical methods to open-shell uranium-containing atomic and molecular species with uranium oxidation states ranging from U(0) to U(V).
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Affiliation(s)
- Chaoqun Zhang
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Lan Cheng
- Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, United States
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7
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Almeida NMS, Melin TRL, Wilson AK. Multireference calculations on the ground and lowest excited states and dissociation energy of LuF. J Chem Phys 2021; 154:244304. [PMID: 34241349 DOI: 10.1063/5.0052312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
High level multireference calculations were performed for LuF for a total of 132 states, including four dissociation channels Lu(2D) + F(2P), Lu(2P) + F(2P), and two Lu(4F) + F(2P). The 6s, 5d, and 6p orbitals of lutetium, along with the valence 2p and 3p orbitals of fluorine, were included in the active space, allowing for the accurate description of static and dynamic correlation. The Lu(4F) + F(2P) channel has intersystem spin crossings with the Lu(2P) + F(2P) and Lu(2D) + F(2P) channels, which are discussed herein. To obtain spectroscopic constants, bond lengths, and excited states, multi-reference configuration interaction (MRCI) was used at a quadruple-ζ basis set level, correlating also the 4f electrons and corresponding orbitals. Core spin-orbit (C-MRCI) calculations were performed, revealing that 13Π0- is the first excited state closely followed by 13Π0+. In addition, the dissociation energy of LuF was determined at different levels of theory, with a range of basis sets. A balance between core correlation and a relativistic treatment of electrons is fundamental to obtain an accurate description of the dissociation energy. The best prediction was obtained with a combination of coupled-cluster single, double, and perturbative triple excitations /Douglas-Kroll-Hess third order Hamiltonian methods at a complete basis set level with a zero-point energy correction, which yields a dissociation value of 170.4 kcal mol-1. Dissociation energies using density functional theory were calculated using a range of functionals and basis sets; M06-L and B3LYP provided the closest predictions to the best ab initio calculations.
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Affiliation(s)
- Nuno M S Almeida
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48864, USA
| | - Timothé R L Melin
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48864, USA
| | - Angela K Wilson
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48864, USA
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8
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Vasiliu M, Peterson KA, Dixon DA. Calculated Ionization Potentials of MO3 and MO2 for M = U, Mo, W, and Nd. J Phys Chem A 2020; 124:6913-6919. [DOI: 10.1021/acs.jpca.0c05925] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Monica Vasiliu
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35401, United States
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - David A. Dixon
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35401, United States
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9
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Battey SR, Bross DH, Peterson KA, Persinger TD, VanGundy RA, Heaven MC. Spectroscopic and theoretical studies of UN and UN . J Chem Phys 2020; 152:094302. [PMID: 33480743 DOI: 10.1063/1.5144299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The low-energy electronic states of UN and UN+ have been examined using high-level electronic structure calculations and two-color photoionization techniques. The experimental measurements provided an accurate ionization energy for UN (IE = 50 802 ± 5 cm-1). Spectra for UN+ yielded ro-vibrational constants and established that the ground state has the electronic angular momentum projection Ω = 4. Ab initio calculations were carried out using the spin-orbit state interacting approach with the complete active space second-order perturbation theory method. A series of correlation consistent basis sets were used in conjunction with small-core relativistic pseudopotentials on U to extrapolate to the complete basis set limits. The results for UN correctly obtained an Ω = 3.5 ground state and demonstrated a high density of configurationally related excited states with closely similar ro-vibrational constants. Similar results were obtained for UN+, with reduced complexity owing to the smaller number of outer-shell electrons. The calculated IE for UN was in excellent agreement with the measured value. Improved values for the dissociation energies of UN and UN+, as well as their heats of formation, were obtained using the Feller-Peterson-Dixon composite thermochemistry method, including corrections up through coupled cluster singles, doubles, triples and quadruples. An analysis of the ab initio results from the perspective of the ligand field theory shows that the patterns of electronic states for both UN and UN+ can be understood in terms of the underlying energy level structure of the atomic metal ion.
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Affiliation(s)
- S R Battey
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - D H Bross
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - K A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - T D Persinger
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - R A VanGundy
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - M C Heaven
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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10
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Marks JH, Kahn P, Vasiliu M, Dixon DA, Duncan MA. Photodissociation and Theory to Investigate Uranium Oxide Cluster Cations. J Phys Chem A 2020; 124:1940-1953. [DOI: 10.1021/acs.jpca.0c00453] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joshua H. Marks
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Paula Kahn
- Department of Chemistry & Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Monica Vasiliu
- Department of Chemistry & Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - David A. Dixon
- Department of Chemistry & Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Michael A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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11
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Kervazo S, Réal F, Virot F, Severo Pereira Gomes A, Vallet V. Accurate Predictions of Volatile Plutonium Thermodynamic Properties. Inorg Chem 2019; 58:14507-14521. [DOI: 10.1021/acs.inorgchem.9b02096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sophie Kervazo
- Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton L8S 4M1, Canada
| | - Florent Réal
- Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France
| | - François Virot
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN) PSN-RES, Cadarache, Saint Paul Lez Durance 13115, France
| | | | - Valérie Vallet
- Univ. Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France
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12
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Minenkova I, Sliznev VV, Cavallo L, Minenkov Y. Gas Phase Silver Thermochemistry from First Principles. Inorg Chem 2019; 58:7873-7885. [PMID: 31185536 DOI: 10.1021/acs.inorgchem.9b00556] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Domain-based local pair natural orbital coupled cluster approach with single, double, and perturbative triple excitations, DLPNO-CCSD(T), has been applied within a framework of a reduced version of the reaction-based Feller-Peterson-Dixon (FPD) scheme to predict gas phase heats of formation and absolute entropies of silver inorganic and organometallic compounds. First, we evaluated all existing experimental data currently limited by thermodynamic functions of 10 silver substances (AgH, AgF, AgBr, AgI, Ag2, Ag2S, Ag2Se, Ag2Te, AgCN, AgPO2). The mean average deviation between computed and experimental heats of formation was found to be 1.9 kcal/mol. Notably, all predicted heats of formation turned out to be within the error bounds of their experimental counterparts. Second, we predicted heats of formation and entropies for additional 90 silver species with no experimental data available, substantially enriching silver thermochemistry. Combination of gas phase heats of formation Δ Hf and entropies S° of AgNO2, AgSCN, Ag2SO4, and Ag2SeO4 obtained in this work, with respective solid-state information, resulted in accurate sublimation thermochemistry of these compounds. Complementation of predicted Δ Hf with heats of formation of some neutrals and positive ions produced 33 silver bond strengths of high reliability. Obtained thermochemical data are promising for developing the concepts of silver chemistry. In addition, derived heats of formation and bond dissociation enthalpies, due to their high diversity, are found to be relevant for testing and training of computational chemistry methods.
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Affiliation(s)
- Irina Minenkova
- Moscow Institute of Physics and Technology , Institutskiy Pereulok 9 , Dolgoprudny , Moscow Region 141700 , Russian Federation.,A.N. Frumkin Institute of Physical Chemistry and Electrochemistry , Russian Academy of Sciences , 31 Leninsky Prospect , Moscow , GSP-1, 119071 , Russian Federation
| | - Valery V Sliznev
- Research Institute for Thermodynamics and Kinetics of Chemical Processes , Ivanovo State University of Chemistry and Technology , 153460 Ivanovo , Russian Federation
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC) , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Saudi Arabia
| | - Yury Minenkov
- Moscow Institute of Physics and Technology , Institutskiy Pereulok 9 , Dolgoprudny , Moscow Region 141700 , Russian Federation
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13
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Penchoff DA, Peterson CC, Camden JP, Bradshaw JA, Auxier JD, Schweitzer GK, Jenkins DM, Harrison RJ, Hall HL. Structural Analysis of the Complexation of Uranyl, Neptunyl, Plutonyl, and Americyl with Cyclic Imide Dioximes. ACS OMEGA 2018; 3:13984-13993. [PMID: 31458094 PMCID: PMC6645112 DOI: 10.1021/acsomega.8b02068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/11/2018] [Indexed: 05/21/2023]
Abstract
Knowledge-based design of extracting agents for selective binding of actinides is essential in stock-pile stewardship, environmental remediation, separations, and nuclear fuel disposal. Robust computational protocols are critical for in depth understanding of structural properties and to further advance the design of selective ligands. In particular, rapid radiochemical separations require predictive capabilities for binding in the gas phase. This study focuses on gas-phase binding preferences of cyclic imide dioximes to uranyl, neptunyl, plutonyl, and americyl. Structural properties, electron withdrawing effects, and their effects on binding preferences are studied with natural bond-order population analysis. The aromatic amidoximes are found to have a larger electron-donation effect than the aliphatic amidoximes. It is also found that plutonyl is more electron withdrawing than uranyl, neptunyl, and americyl when bound to the cyclic imide dioximes studied.
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Affiliation(s)
- Deborah A. Penchoff
- Institute
for Nuclear Security, University of Tennessee, 1640 Cumberland Avenue, Knoxville, Tennessee 37996, United States
- Joint
Institute for Computational Sciences, Oak
Ridge National Laboratory, 1 Bethel Valley Rd., Bldg. 5100, Oak Ridge, Tennessee 37831, United States
- E-mail: (D.A.P)
| | - Charles C. Peterson
- Research
Information Technology Services, University
of North Texas, 225 S. Avenue B, Denton, Texas 76201, United
States
| | - Jon P. Camden
- Department
of Chemistry and Biochemistry, University
of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - James A. Bradshaw
- Y-12
National Security
Complex, 602 Scarboro Rd, Oak Ridge, Tennessee 37830, United States
| | - John D. Auxier
- Department
of Nuclear Engineering, University of Tennessee, 301 Middle Dr., Pasqua Nuclear Engineering
Bldg., Knoxville, Tennessee 37996, United States
- Radiochemistry
Center of Excellence (RCOE), University
of Tennessee, 1508 Middle
Dr., Ferris Hall, Knoxville, Tennessee 37996, United States
| | - George K. Schweitzer
- Department
of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - David M. Jenkins
- Department
of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Robert J. Harrison
- Institute
for Advanced Computational Science, Stony
Brook University, 100 Nicolls Road, Stony Brook, New York 11790, United
States
- Brookhaven
National Laboratory, Computational Science, Building 725, Upton, New York 11973, United States
- E-mail: (R.J.H.)
| | - Howard L. Hall
- Institute
for Nuclear Security, University of Tennessee, 1640 Cumberland Avenue, Knoxville, Tennessee 37996, United States
- Y-12
National Security
Complex, 602 Scarboro Rd, Oak Ridge, Tennessee 37830, United States
- Department
of Nuclear Engineering, University of Tennessee, 301 Middle Dr., Pasqua Nuclear Engineering
Bldg., Knoxville, Tennessee 37996, United States
- E-mail: (H.L.H)
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14
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Minenkov Y, Cavallo L. Ground-State Gas-Phase Structures of Inorganic Molecules Predicted by Density Functional Theory Methods. ACS OMEGA 2017; 2:8373-8387. [PMID: 31457376 PMCID: PMC6645218 DOI: 10.1021/acsomega.7b01203] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 11/01/2017] [Indexed: 06/10/2023]
Abstract
We tested a battery of density functional theory (DFT) methods ranging from generalized gradient approximation (GGA) via meta-GGA to hybrid meta-GGA schemes as well as Møller-Plesset perturbation theory of the second order and a single and double excitation coupled-cluster (CCSD) theory for their ability to reproduce accurate gas-phase structures of di- and triatomic molecules derived from microwave spectroscopy. We obtained the most accurate molecular structures using the hybrid and hybrid meta-GGA approximations with B3PW91, APF, TPSSh, mPW1PW91, PBE0, mPW1PBE, B972, and B98 functionals, resulting in lowest errors. We recommend using these methods to predict accurate three-dimensional structures of inorganic molecules when intramolecular dispersion interactions play an insignificant role. The structures that the CCSD method predicts are of similar quality although at considerably larger computational cost. The structures that GGA and meta-GGA schemes predict are less accurate with the largest absolute errors detected with BLYP and M11-L, suggesting that these methods should not be used if accurate three-dimensional molecular structures are required. Because of numerical problems related to the integration of the exchange-correlation part of the functional and large scattering of errors, most of the Minnesota models tested, particularly MN12-L, M11, M06-L, SOGGA11, and VSXC, are also not recommended for geometry optimization. When maintaining a low computational budget is essential, the nonseparable gradient functional N12 might work within an acceptable range of error. As expected, the DFT-D3 dispersion correction had a negligible effect on the internuclear distances when combined with the functionals tested on nonweakly bonded di- and triatomic inorganic molecules. By contrast, the dispersion correction for the APF-D functional has been found to shorten the bonds significantly, up to 0.064 Å (AgI), in Ag halides, BaO, BaS, BaF, BaCl, Cu halides, and Li and Na halides and hydrides. These results do not agree well with very accurate structures derived from microwave spectroscopy; we therefore believe that the dispersion correction in the APF-D method should be reconsidered. Finally, we found that inaccurate structures can easily lead to errors of few kcal/mol in single-point energies.
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Affiliation(s)
- Yury Minenkov
- Physical Science and Engineering Division
(PSE), KAUST Catalysis Center (KCC), King
Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Luigi Cavallo
- Physical Science and Engineering Division
(PSE), KAUST Catalysis Center (KCC), King
Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
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15
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Permanent electric dipole moments of PtX (X = H, F, Cl, Br, and I) by the composite approach. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.09.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Feng R, Peterson KA. Correlation consistent basis sets for actinides. II. The atoms Ac and Np–Lr. J Chem Phys 2017; 147:084108. [DOI: 10.1063/1.4994725] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Rulin Feng
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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17
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Minenkov Y, Wang H, Wang Z, Sarathy SM, Cavallo L. Heats of Formation of Medium-Sized Organic Compounds from Contemporary Electronic Structure Methods. J Chem Theory Comput 2017. [DOI: 10.1021/acs.jctc.7b00335] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yury Minenkov
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), KAUST
Catalysis Center (KCC), 23955-6900 Thuwal, Saudi Arabia
| | - Heng Wang
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), Clean
Combustion Research Center (CCRC), 23955-6900 Thuwal, Saudi Arabia
| | - Zhandong Wang
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), Clean
Combustion Research Center (CCRC), 23955-6900 Thuwal, Saudi Arabia
| | - S. Mani Sarathy
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), Clean
Combustion Research Center (CCRC), 23955-6900 Thuwal, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), KAUST
Catalysis Center (KCC), 23955-6900 Thuwal, Saudi Arabia
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18
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VanGundy RA, Bartlett JH, Heaven MC, Battey SR, Peterson KA. Spectroscopic and theoretical studies of ThCl and ThCl+. J Chem Phys 2017; 146:054307. [DOI: 10.1063/1.4975070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | - Michael C. Heaven
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - Samuel R. Battey
- Department of Chemistry, Washington State University, Pullman, Washington 99164, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164, USA
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19
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Minenkov Y, Sliznev VV, Cavallo L. Accurate Gas Phase Formation Enthalpies of Alloys and Refractories Decomposition Products. Inorg Chem 2017; 56:1386-1401. [DOI: 10.1021/acs.inorgchem.6b02441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yury Minenkov
- Physical Sciences
and Engineering Division, King Abdullah University of Science and Technology, KAUST Catalysis Center, Thuwal 23955-6900, Saudi Arabia
| | - Valery V. Sliznev
- Ivanovo State University of Chemistry and Technology, Research Institute for Thermodynamics
and Kinetics of Chemical Processes, 153460 Ivanovo, Russian Federation
| | - Luigi Cavallo
- Physical Sciences
and Engineering Division, King Abdullah University of Science and Technology, KAUST Catalysis Center, Thuwal 23955-6900, Saudi Arabia
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20
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Lu Q, Peterson KA. Correlation consistent basis sets for lanthanides: The atoms La–Lu. J Chem Phys 2016; 145:054111. [DOI: 10.1063/1.4959280] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Qing Lu
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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21
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Roy SK, Jian T, Lopez GV, Li WL, Su J, Bross DH, Peterson KA, Wang LS, Li J. A combined photoelectron spectroscopy and relativistic ab initio studies of the electronic structures of UFO and UFO(-). J Chem Phys 2016; 144:084309. [PMID: 26931704 DOI: 10.1063/1.4942188] [Citation(s) in RCA: 4] [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 observation of the gaseous UFO(-) anion is reported, which is investigated using photoelectron spectroscopy and relativisitic ab initio calculations. Two strong photoelectron bands are observed at low binding energies due to electron detachment from the U-7sσ orbital. Numerous weak detachment bands are also observed due to the strongly correlated U-5f electrons. The electron affinity of UFO is measured to be 1.27(3) eV. High-level relativistic quantum chemical calculations have been carried out on the ground state and many low-lying excited states of UFO to help interpret the photoelectron spectra and understand the electronic structure of UFO. The ground state of UFO(-) is linear with an O-U-F structure and a (3)H4 spectral term derived from a U 7sσ(2)5fφ(1)5fδ(1) electron configuration, whereas the ground state of neutral UFO has a (4)H(7/2) spectral term with a U 7sσ(1)5fφ(1)5fδ(1) electron configuration. Strong electron correlation effects are found in both the anionic and neutral electronic configurations. In the UFO neutral, a high density of electronic states with strong configuration mixing is observed in most of the scalar relativistic and spin-orbit coupled states. The strong electron correlation, state mixing, and spin-orbit coupling of the electronic states make the excited states of UFO very challenging for accurate quantum chemical calculations.
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Affiliation(s)
- Soumendra K Roy
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Tian Jian
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Gary V Lopez
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Wei-Li Li
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Jing Su
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - David H Bross
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Kirk A Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Lai-Sheng Wang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA
| | - Jun Li
- Department of Chemistry and Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
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22
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Karton A. A computational chemist's guide to accurate thermochemistry for organic molecules. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1249] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Amir Karton
- School of Chemistry and Biochemistry; The University of Western Australia; Perth WA Australia
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23
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Su J, Li WL, Lopez GV, Jian T, Cao GJ, Li WL, Schwarz WHE, Wang LS, Li J. Probing the Electronic Structure and Chemical Bonding of Mono-Uranium Oxides with Different Oxidation States: UOx(-) and UOx (x = 3-5). J Phys Chem A 2016; 120:1084-96. [PMID: 26825216 DOI: 10.1021/acs.jpca.5b11354] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Uranium oxide clusters UOx(-) (x = 3-5) were produced by laser vaporization and characterized by photoelectron spectroscopy and quantum theory. Photoelectron spectra were obtained for UOx(-) at various photon energies with well-resolved detachment transitions and vibrational resolution for x = 3 and 4. The electron affinities of UOx were measured as 1.12, 3.60, and 4.02 eV for x = 3, 4, and 5, respectively. The geometric and electronic structures of both the anions and the corresponding neutrals were investigated by quasi-relativistic electron-correlation quantum theory to interpret the photoelectron spectra and to provide insight into their chemical bonding. For UOx clusters with x ≤ 3, the O atoms appear as divalent closed-shell anions around the U atom, which is in various oxidation states from U(II)(fds)(4) in UO to U(VI)(fds)(0) in UO3. For x > 3, there are no longer sufficient valence electrons from the U atom to fill the O(2p) shell, resulting in fractionally charged and multicenter delocalized valence states for the O ligands as well as η(1)- or η(2)-bonded O2 units, with unusual spin couplings and complicated electron correlations in the unfilled poly oxo shell. The present work expands our understanding of both the bonding capacities of actinide elements with extended spdf valence shells as well as the multitude of oxygen's charge and bonding states.
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Affiliation(s)
- Jing Su
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University , Beijing 100084, China.,Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Wei-Li Li
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Gary V Lopez
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Tian Jian
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Guo-Jin Cao
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University , Beijing 100084, China
| | - Wan-Lu Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University , Beijing 100084, China
| | - W H Eugen Schwarz
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University , Beijing 100084, China.,Physical and Theoretical Chemistry, University of Siegen , Siegen 57068, Germany
| | - Lai-Sheng Wang
- Department of Chemistry, Brown University , Providence, Rhode Island 02912, United States
| | - Jun Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Tsinghua University , Beijing 100084, China
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24
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Bross DH, Parmar P, Peterson KA. Multireference configuration interaction calculations of the first six ionization potentials of the uranium atom. J Chem Phys 2015; 143:184308. [DOI: 10.1063/1.4935375] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- David H. Bross
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Payal Parmar
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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25
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Bross DH, Peterson KA. Theoretical spectroscopy study of the low-lying electronic states of UX and UX+, X = F and Cl. J Chem Phys 2015; 143:184313. [DOI: 10.1063/1.4935492] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- David H. Bross
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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26
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Peterson KA. Correlation consistent basis sets for actinides. I. The Th and U atoms. J Chem Phys 2015; 142:074105. [DOI: 10.1063/1.4907596] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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