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Yang Y, Wei S, Zhao Z, Chen J, Wang J, Hu H, Minasian SG, Sun T. Synthesis, Structure, and Theoretical Calculations on NpO 2Br 42. Inorg Chem 2023; 62:13953-13963. [PMID: 37584949 DOI: 10.1021/acs.inorgchem.3c01891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
The actinide-halogen complexes (AnO2X42-, X = Cl, Br, and I) are the simplest and most representative compounds for studying the bonding nature of actinides with ligands. In this work, we attempted to synthesize the crystals of NpO2X42- (X = Cl, Br, and I). The crystals of NpO2Cl42- and NpO2Br42- were successfully synthesized, in which the structure of NpO2Br42- was obtained for the first time. The crystal of NpO2I42- could not be obtained due to the rapid reduction of Np(VI) to Np(V) by I-. The molecular structures of NpO2Cl42- and NpO2Br42- were characterized by single-crystal X-ray diffraction and infrared, Raman, and UV-Vis-NIR absorption spectroscopy. The complexes of NpO2X42- (X = Cl, Br, and I) were also investigated by density functional theory calculations, and the calculated vibration frequencies and absorption features were comparable to the experimental results. Both the experimental results and theoretical calculations demonstrate the strengthened Np-O bonds and the weakened Np-X bonds across the NpO2X42- series; however, the population analysis on the frontier molecular orbitals (MOs) of NpO2X42- indicates a slight reduction in the Np-O bonding covalency and an enhancement in the Np-X bonding covalency from NpO2Cl42- to NpO2I42-. Results in this work have enriched the crystal database of the AnO2X42- family and provided insights into the bonding nature in the actinide complexes with soft- and hard-donor ligands.
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Affiliation(s)
- Yuning Yang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shiru Wei
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Zhijin Zhao
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Jing Chen
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Jianchen Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Hanshi Hu
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Stefan G Minasian
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Taoxiang Sun
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
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2
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Zhang Y, Duan W, Yang Y, Jian T, Qiao Y, Ren G, Zhang N, Zheng L, Yan W, Wang J, Chen J, Minasian SG, Sun T. Involvement of 5f Orbitals in the Covalent Bonding between the Uranyl Ion and Trialkyl Phosphine Oxide: Unraveled by Oxygen K-Edge X-ray Absorption Spectroscopy and Density Functional Theory. Inorg Chem 2021; 61:92-104. [PMID: 34817979 DOI: 10.1021/acs.inorgchem.1c02236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Monodentate organophosphorus ligands have been used for the extraction of the uranyl ion (UO22+) for over half a century and have exhibited exceptional extractability and selectivity toward the uranyl ion due to the presence of the phosphoryl group (O═P). Tributyl phosphate (TBP) is the extractant of the world-renowned PUREX process, which selectively recovers uranium from spent nuclear fuel. Trialkyl phosphine oxide (TRPO) shows extractability toward the uranyl ion that far exceeds that for other metal ions, and it has been used in the TRPO process. To date, however, the mechanism of the high affinity of the phosphoryl group for UO22+ remains elusive. We herein investigate the bonding covalency in a series of complexes of UO22+ with TRPO by oxygen K-edge X-ray absorption spectroscopy (XAS) in combination with density functional theory (DFT) calculations. Four TRPO ligands with different R substituents are examined in this work, for which both the ligands and their uranyl complexes are crystallized and investigated. The study of the electronic structure of the TRPO ligands reveals that the two TRPO molecules, irrespective of their substituents, can engage in σ- and π-type interactions with U 5f and 6d orbitals in the UO2Cl2(TRPO)2 complexes. Although both the axial (Oyl) and equatorial (Oeq) oxygen atoms in the UO2Cl2(TRPO)2 complexes contribute to the X-ray absorption, the first pre-edge feature in the O K-edge XAS with a small intensity is exclusively contributed by Oeq and is assigned to the transition from Oeq 1s orbitals to the unoccupied molecular orbitals of 1b1u + 1b2u + 1b3u symmetries resulting from the σ- and π-type mixing between U 5f and Oeq 2p orbitals. The small intensity in the experimental spectra is consistent with the small amount of Oeq 2p character in these orbitals for the four UO2Cl2(TRPO)2 complexes as obtained by Mulliken population analysis. The DFT calculations demonstrate that the U 6d orbitals are also involved in the U-TRPO bonding interactions in the UO2Cl2(TRPO)2 complexes. The covalent bonding interactions between TRPO and UO22+, especially the contributions from U 5f orbitals, while appearing to be small, are sufficiently responsible for the exceptional extractability and selectivity of monodentate organophosphorus ligands for the uranyl ion. Our results provide valuable insight into the fundamental actinide chemistry and are expected to directly guide actinide separation schemes needed for the development of advanced nuclear fuel cycle technologies.
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Affiliation(s)
- Yusheng Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Wuhua Duan
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Yuning Yang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Tian Jian
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Yusen Qiao
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Guoxi Ren
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Nian Zhang
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Lei Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Wensheng Yan
- University of Science and Technology of China, National Synchrotron Radiation Laboratory, Hefei 230029, China
| | - Jianchen Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Jing Chen
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Stefan G Minasian
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Taoxiang Sun
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
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3
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Karaghiosoff K, Klapötke TM, Kunz T, Mayer P, Beck W. Uranyl Complexes with Selenium or Tellurium Containing Chelate Ligands. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202000445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Konstantin Karaghiosoff
- Department of Chemistry and Biochemistry Ludwig-Maximilians University Butenandtstraße 5-13 (Haus D) D-81377 Munich Germany
| | - Thomas M. Klapötke
- Department of Chemistry and Biochemistry Ludwig-Maximilians University Butenandtstraße 5-13 (Haus D) D-81377 Munich Germany
| | - Thomas Kunz
- Department of Chemistry and Biochemistry Ludwig-Maximilians University Butenandtstraße 5-13 (Haus D) D-81377 Munich Germany
| | - Peter Mayer
- Department of Chemistry and Biochemistry Ludwig-Maximilians University Butenandtstraße 5-13 (Haus D) D-81377 Munich Germany
| | - Wolfgang Beck
- Department of Chemistry and Biochemistry Ludwig-Maximilians University Butenandtstraße 5-13 (Haus D) D-81377 Munich Germany
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4
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Warzecha E, Celis-Barros C, Dilbeck T, Hanson K, Albrecht-Schmitt TE. High-Pressure Studies of Cesium Uranyl Chloride. Inorg Chem 2018; 58:228-233. [DOI: 10.1021/acs.inorgchem.8b02300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Evan Warzecha
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Cristian Celis-Barros
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Tristan Dilbeck
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Thomas E. Albrecht-Schmitt
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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5
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Qu N, Zhong YX, Schreckenbach G, Pan QJ. A computational investigation of polypyrrolic macrocyclic actinyl complexes: effects of explicit solvent coordination on structure, vibrational spectra and redox property. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1959-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Yao J, Zheng XJ, Pan QJ, Schreckenbach G. Highly Valence-Diversified Binuclear Uranium Complexes of a Schiff-Base Polypyrrolic Macrocycle: Prediction of Unusual Structures, Electronic Properties, and Formation Reactions. Inorg Chem 2015; 54:5438-49. [DOI: 10.1021/acs.inorgchem.5b00483] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jun Yao
- Key Laboratory of
Functional Inorganic Material Chemistry of Education Ministry, School
of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Xiu-Jun Zheng
- Key Laboratory of
Functional Inorganic Material Chemistry of Education Ministry, School
of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Qing-Jiang Pan
- Key Laboratory of
Functional Inorganic Material Chemistry of Education Ministry, School
of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
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7
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Lv CM, Wang YM, Bai FQ, Zhang HX, Pan QJ. Tuning electronic structures of uranyl fluorides via increasing equatorial pyridyl number and extending pyridyl conjugation. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2014.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Schnaars DD, Wilson RE. Lattice Solvent and Crystal Phase Effects on the Vibrational Spectra of UO2Cl42–. Inorg Chem 2014; 53:11036-45. [DOI: 10.1021/ic501553m] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- David D. Schnaars
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Richard E. Wilson
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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9
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Kharissova OV, Méndez-Rojas MA, Kharisov BI, Méndez UO, Martínez PE. Metal complexes containing natural and and artificial radioactive elements and their applications. Molecules 2014; 19:10755-802. [PMID: 25061724 PMCID: PMC6272025 DOI: 10.3390/molecules190810755] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/09/2014] [Accepted: 07/11/2014] [Indexed: 12/13/2022] Open
Abstract
Recent advances (during the 2007–2014 period) in the coordination and organometallic chemistry of compounds containing natural and artificially prepared radionuclides (actinides and technetium), are reviewed. Radioactive isotopes of naturally stable elements are not included for discussion in this work. Actinide and technetium complexes with O-, N-, N,O, N,S-, P-containing ligands, as well π-organometallics are discussed from the view point of their synthesis, properties, and main applications. On the basis of their properties, several mono-, bi-, tri-, tetra- or polydentate ligands have been designed for specific recognition of some particular radionuclides, and can be used in the processes of nuclear waste remediation, i.e., recycling of nuclear fuel and the separation of actinides and fission products from waste solutions or for analytical determination of actinides in solutions; actinide metal complexes are also usefulas catalysts forcoupling gaseous carbon monoxide, as well as antimicrobial and anti-fungi agents due to their biological activity. Radioactive labeling based on the short-lived metastable nuclide technetium-99m (99mTc) for biomedical use as heart, lung, kidney, bone, brain, liver or cancer imaging agents is also discussed. Finally, the promising applications of technetium labeling of nanomaterials, with potential applications as drug transport and delivery vehicles, radiotherapeutic agents or radiotracers for monitoring metabolic pathways, are also described.
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Affiliation(s)
- Oxana V Kharissova
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Miguel A Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas Puebla, Sta. Catarina Mártir, Cholula, Puebla. C.P. 72810, Mexico
| | - Boris I Kharisov
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico.
| | - Ubaldo Ortiz Méndez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Perla Elizondo Martínez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
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10
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Structural/electronic properties and reaction energies of a series of mono- and bis-uranyl dihalides equatorially coordinated by N/O ligands. J Mol Model 2014; 20:2305. [PMID: 24869781 DOI: 10.1007/s00894-014-2305-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 05/12/2014] [Indexed: 10/25/2022]
Abstract
Monometallic (UO2)(X)2(L)3 (L = pyridine (py), X = F (1), Cl (2), Br (3) and I (4); L = tetrahydrofuran (thf), X = Cl (5); L = pyrrole (pl), X = Cl (6)) as well as bimetallic [(UO2)(μ2-X)(X)(L)2]2 (L = py, X = F (7), Cl (8), Br (9) and I (10); L = thf, X = Cl (11); L = pl, X = Cl (12); μ 2 = doubly bridged) were examined using relativistic density functional theory. With changing from F, Cl, Br to I irregardless of in mono- or bis-uranyl complexes, bond lengths of U = O were calculated to be decreasing, resulting from strengthening of axial U = O bonds while weakening equatorial X → U coordination. This is further evidenced by calculated bond orders of U = O and stretching vibrational frequencies. A similar situation was is found in 2, 5 and 6 as well as in 8, 11 and 12, where N/O ligands are varied but the chlorine atoms are retained. The present study reveals that all these complexes have U(f)-character low-lying unoccupied orbitals, and their π*(U = O) antibonds are located on higher-energy orbitals. Complex 1 was calculated to show σ(U = O) bonding character for HOMO, and pyridine-character for other occupied orbitals; the fluorine ligand occurs in a relatively low-energy region. In contrast, the π(p) characters of heavier halogen atoms significantly contribute to most frontier molecular orbitals of 2, 3 and 4. Unlike this electronic feature of 2, complexes 5 and 6 exhibit mainly thf and pyrrole characters, respectively, for their high-lying occupied orbitals. Electronic structures of bisuranyl complexes 7-12, albeit a little more complicated, are revealed to be similar to those of the corresponding monouranyl complexes. Finally, energies of formation reactions of the above complexes were calculated and compared with available experimental results.
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11
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Hashem E, McCabe T, Schulzke C, Baker RJ. Synthesis, structure and photophysical properties of [UO2X2(OPPh3)2] (X = Cl, Br, I). Dalton Trans 2014; 43:1125-31. [DOI: 10.1039/c3dt52480a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Su J, Dau PD, Qiu YH, Liu HT, Xu CF, Huang DL, Wang LS, Li J. Probing the Electronic Structure and Chemical Bonding in Tricoordinate Uranyl Complexes UO2X3– (X = F, Cl, Br, I): Competition between Coulomb Repulsion and U–X Bonding. Inorg Chem 2013; 52:6617-26. [DOI: 10.1021/ic4006482] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jing Su
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Phuong Diem Dau
- Department
of Chemistry, Brown University, Providence,
Rhode Island 02912, United States
| | - Yi-Heng Qiu
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Hong-Tao Liu
- Department
of Chemistry, Brown University, Providence,
Rhode Island 02912, United States
| | - Chao-Fei Xu
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Dao-Ling Huang
- Department
of Chemistry, Brown University, Providence,
Rhode Island 02912, United States
| | - 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 of Ministry of Education, Tsinghua University, Beijing 100084, China
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13
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Spencer LP, Yang P, Minasian SG, Jilek RE, Batista ER, Boland KS, Boncella JM, Conradson SD, Clark DL, Hayton TW, Kozimor SA, Martin RL, MacInnes MM, Olson AC, Scott BL, Shuh DK, Wilkerson MP. Tetrahalide complexes of the [U(NR)2]2+ ion: synthesis, theory, and chlorine K-edge X-ray absorption spectroscopy. J Am Chem Soc 2013; 135:2279-90. [PMID: 23320417 DOI: 10.1021/ja310575j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Synthetic routes to salts containing uranium bis-imido tetrahalide anions [U(NR)(2)X(4)](2-) (X = Cl(-), Br(-)) and non-coordinating NEt(4)(+) and PPh(4)(+) countercations are reported. In general, these compounds can be prepared from U(NR)(2)I(2)(THF)(x) (x = 2 and R = (t)Bu, Ph; x = 3 and R = Me) upon addition of excess halide. In addition to providing stable coordination complexes with Cl(-), the [U(NMe)(2)](2+) cation also reacts with Br(-) to form stable [NEt(4)](2)[U(NMe)(2)Br(4)] complexes. These materials were used as a platform to compare electronic structure and bonding in [U(NR)(2)](2+) with [UO(2)](2+). Specifically, Cl K-edge X-ray absorption spectroscopy (XAS) and both ground-state and time-dependent hybrid density functional theory (DFT and TDDFT) were used to probe U-Cl bonding interactions in [PPh(4)](2)[U(N(t)Bu)(2)Cl(4)] and [PPh(4)](2)[UO(2)Cl(4)]. The DFT and XAS results show the total amount of Cl 3p character mixed with the U 5f orbitals was roughly 7-10% per U-Cl bond for both compounds, which shows that moving from oxo to imido has little effect on orbital mixing between the U 5f and equatorial Cl 3p orbitals. The results are presented in the context of recent Cl K-edge XAS and DFT studies on other hexavalent uranium chloride systems with fewer oxo or imido ligands.
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Affiliation(s)
- Liam P Spencer
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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14
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Takao K, Takao S, Ikeda Y, Bernhard G, Hennig C. Uranyl–halide complexation in N,N-dimethylformamide: halide coordination trend manifests hardness of [UO2]2+. Dalton Trans 2013; 42:13101-11. [DOI: 10.1039/c3dt51191j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Andrews MB, Cahill CL. Uranyl Bearing Hybrid Materials: Synthesis, Speciation, and Solid-State Structures. Chem Rev 2012; 113:1121-36. [PMID: 22881287 DOI: 10.1021/cr300202a] [Citation(s) in RCA: 310] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Michael B. Andrews
- Department of Chemistry,
The George Washington University,
Washington, DC 20052, United States
| | - Christopher L. Cahill
- Department of Chemistry,
The George Washington University,
Washington, DC 20052, United States
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16
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Andrews MB, Cahill CL. Utilizing hydrogen bonds and halogen–halogen interactions in the design of uranyl hybrid materials. Dalton Trans 2012; 41:3911-4. [PMID: 22159331 DOI: 10.1039/c2dt11985d] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Michael B Andrews
- Department of Chemistry, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA
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17
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Tsushima S, Götz C, Fahmy K. Photoluminescence of Uranium(VI): Quenching Mechanism and Role of Uranium(V). Chemistry 2010; 16:8029-33. [DOI: 10.1002/chem.201000408] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Ruipérez F, Wahlgren U. Charge Transfer in Uranyl(VI) Halides [UO2X4]2− (X = F, Cl, Br, and I). A Quantum Chemical Study of the Absorption Spectra. J Phys Chem A 2010; 114:3615-21. [DOI: 10.1021/jp911271q] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fernando Ruipérez
- Department of Physics, Stockholm University, AlbaNova University Centre, 106 91 Stockholm, Sweden, and NORDITA, AlbaNova University Centre, 106 91 Stockholm, Sweden
| | - Ulf Wahlgren
- Department of Physics, Stockholm University, AlbaNova University Centre, 106 91 Stockholm, Sweden, and NORDITA, AlbaNova University Centre, 106 91 Stockholm, Sweden
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19
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Uranium(VI) Bis(imido) Chalcogenate Complexes: Synthesis and Density Functional Theory Analysis. Inorg Chem 2009; 48:2693-700. [DOI: 10.1021/ic802212m] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Graves CR, Schelter EJ, Cantat T, Scott BL, Kiplinger JL. A Mild Protocol To Generate Uranium(IV) Mixed-Ligand Metallocene Complexes using Copper(I) Iodide. Organometallics 2008. [DOI: 10.1021/om800622g] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Thibault Cantat
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - Brian L. Scott
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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21
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Graves CR, Yang P, Kozimor SA, Vaughn AE, Clark DL, Conradson SD, Schelter EJ, Scott BL, Thompson JD, Hay PJ, Morris DE, Kiplinger JL. Organometallic Uranium(V)−Imido Halide Complexes: From Synthesis to Electronic Structure and Bonding. J Am Chem Soc 2008; 130:5272-85. [DOI: 10.1021/ja711010h] [Citation(s) in RCA: 168] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ping Yang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | | | | | - David L. Clark
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | | | | | - Brian L. Scott
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - J. D. Thompson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - P. Jeffrey Hay
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - David E. Morris
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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22
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Ephritikhine M. The vitality of uranium molecular chemistry at the dawn of the XXIst century. Dalton Trans 2006:2501-16. [PMID: 16718334 DOI: 10.1039/b603463b] [Citation(s) in RCA: 264] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intent of this Dalton Perspective is to highlight the recent advances in uranium molecular chemistry, with the results reported during the 2000-2006 period. This discipline is currently witnessing an impressive development, together with the theoretical chemistry and solid-state chemistry of the f-elements, and its face has profoundly changed, revealing unsuspected structural and reactivity features. This progress required and was facilitated by the use of new precursors. Studies of low-valent compounds gave a better insight into lanthanide(III)/actinide(III) differentiation and led to the discovery of unusual reactions, including activation of small molecules. A number of tetravalent uranium complexes, in particular polynuclear compounds, have been synthesized, which exhibit exciting structures and physicochemical properties. The potential of uranium(III) and uranium(IV) complexes in catalysis has been confirmed. The uranyl complexes, from mononuclear species to supramolecular assemblies, reveal a variety of novel structures, changing the generally accepted ideas on the coordination geometry and the stability of the UO2(2+) ion.
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Affiliation(s)
- Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, Laboratoire Claude Fréjacques (CNRS URA 331), CEA/Saclay, 91191, Gif-sur-Yvette, France.
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