51
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Gardner BM, King DM, Tuna F, Wooles AJ, Chilton NF, Liddle ST. Assessing crystal field and magnetic interactions in diuranium-μ-chalcogenide triamidoamine complexes with U IV-E-U IV cores (E = S, Se, Te): implications for determining the presence or absence of actinide-actinide magnetic exchange. Chem Sci 2017; 8:6207-6217. [PMID: 28989654 PMCID: PMC5628351 DOI: 10.1039/c7sc01998j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/04/2017] [Indexed: 12/17/2022] Open
Abstract
We report the synthesis and characterisation of a family of diuranium(iv)-μ-chalcogenide complexes including a detailed examination of their electronic structures and magnetic behaviours. Treatment of [U(TrenTIPS)] [1, TrenTIPS = N(CH2CH2NSiPri3)3] with Ph3PS, selenium or tellurium affords the diuranium(iv)-sulfide, selenide, and telluride complexes [{U(TrenTIPS)}2(μ-E)] (E = S, 2; Se, 5; Te, 6). Complex 2 is also formed by treatment of [U(TrenTIPS){OP(NMe2)3}] (3) with Ph3PS, whereas treatment of 3 with elemental sulfur gives the diuranium(iv)-persulfido complex [{U(TrenTIPS)}2(μ-η2:η2-S2)] (4). Complexes 2-6 have been variously characterised by single crystal X-ray diffraction, NMR, IR, and optical spectroscopies, room temperature Evans and variable temperature SQUID magnetometry, elemental analyses, and complete active space self consistent field spin orbit calculations. The combined characterisation data present a self-consistent picture of the electronic structure and magnetism of 2, 5, and 6, leading to the conclusion that single-ion crystal field effects, and not diuranium magnetic coupling, are responsible for features in their variable-temperature magnetisation data. The presence of magnetic coupling is often implied and sometimes quantified by such data, and so this study highlights the importance of evaluating other factors, such as crystal field effects, that can produce similar magnetic observables, and to thus avoid misassignments of such phenomena.
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Affiliation(s)
- Benedict M Gardner
- School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK . ;
| | - David M King
- School of Chemistry , The University of Nottingham , University Park , Nottingham , NG7 2RD , UK
| | - Floriana Tuna
- School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK . ;
| | - Ashley J Wooles
- School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK . ;
| | - Nicholas F Chilton
- School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK . ;
| | - Stephen T Liddle
- School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK . ;
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52
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Qu N, Su DM, Wu QY, Shi WQ, Pan QJ. Metal-metal multiple bond in low-valent diuranium porphyrazines and its correlation with metal oxidation state: A relativistic DFT study. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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53
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Zhao HB, Zheng M, Schreckenbach G, Pan QJ. Interfacial Interaction of Titania Nanoparticles and Ligated Uranyl Species: A Relativistic DFT Investigation. Inorg Chem 2017; 56:2763-2776. [DOI: 10.1021/acs.inorgchem.6b02927] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hong-Bo Zhao
- Key Laboratory of
Functional Inorganic Material Chemistry of Education Ministry, School
of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Ming Zheng
- 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 R3T 2N2, MB, Canada
| | - Qing-Jiang Pan
- Key Laboratory of
Functional Inorganic Material Chemistry of Education Ministry, School
of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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54
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Hohloch S, Pankhurst JR, Jaekel EE, Parker BF, Lussier DJ, Garner ME, Booth CH, Love JB, Arnold J. Benzoquinonoid-bridged dinuclear actinide complexes. Dalton Trans 2017; 46:11615-11625. [PMID: 28831470 DOI: 10.1039/c7dt02728a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the coordination chemistry of benzoquinonoid-bridged dinluclear thorium(iv) and uranium(iv) complexes with the tripodal ligand tris[2-amido(2-pyridyl)ethyl]amine ligand,L.
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Affiliation(s)
- Stephan Hohloch
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - James R. Pankhurst
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | | | - Bernard F. Parker
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - Daniel J. Lussier
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - Mary E. Garner
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - Corwin H. Booth
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Jason B. Love
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - John Arnold
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
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55
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King DM, Cleaves PA, Wooles AJ, Gardner BM, Chilton NF, Tuna F, Lewis W, McInnes EJL, Liddle ST. Molecular and electronic structure of terminal and alkali metal-capped uranium(V) nitride complexes. Nat Commun 2016; 7:13773. [PMID: 27996007 PMCID: PMC5187438 DOI: 10.1038/ncomms13773] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/31/2016] [Indexed: 12/18/2022] Open
Abstract
Determining the electronic structure of actinide complexes is intrinsically challenging because inter-electronic repulsion, crystal field, and spin-orbit coupling effects can be of similar magnitude. Moreover, such efforts have been hampered by the lack of structurally analogous families of complexes to study. Here we report an improved method to U≡N triple bonds, and assemble a family of uranium(V) nitrides. Along with an isoelectronic oxo, we quantify the electronic structure of this 5f1 family by magnetometry, optical and electron paramagnetic resonance (EPR) spectroscopies and modelling. Thus, we define the relative importance of the spin-orbit and crystal field interactions, and explain the experimentally observed different ground states. We find optical absorption linewidths give a potential tool to identify spin-orbit coupled states, and show measurement of UV···UV super-exchange coupling in dimers by EPR. We show that observed slow magnetic relaxation occurs via two-phonon processes, with no obvious correlation to the crystal field.
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Affiliation(s)
- David M. King
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Peter A. Cleaves
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Ashley J. Wooles
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Benedict M. Gardner
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Nicholas F. Chilton
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Floriana Tuna
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Eric J. L. McInnes
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Stephen T. Liddle
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK
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56
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Pankhurst JR, Bell NL, Zegke M, Platts LN, Lamfsus CA, Maron L, Natrajan LS, Sproules S, Arnold PL, Love JB. Inner-sphere vs. outer-sphere reduction of uranyl supported by a redox-active, donor-expanded dipyrrin. Chem Sci 2016; 8:108-116. [PMID: 28451154 PMCID: PMC5304617 DOI: 10.1039/c6sc02912d] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 10/11/2016] [Indexed: 11/21/2022] Open
Abstract
The uranyl(vi) complex UO2Cl(L) of the redox-active, acyclic diimino-dipyrrin anion, L- is reported and its reaction with inner- and outer-sphere reductants studied. Voltammetric, EPR-spectroscopic and X-ray crystallographic studies show that chemical reduction by the outer-sphere reagent CoCp2 initially reduces the ligand to a dipyrrin radical, and imply that a second equivalent of CoCp2 reduces the U(vi) centre to form U(v). Cyclic voltammetry indicates that further outer-sphere reduction to form the putative U(iv) trianion only occurs at strongly cathodic potentials. The initial reduction of the dipyrrin ligand is supported by emission spectra, X-ray crystallography, and DFT; the latter also shows that these outer-sphere reactions are exergonic and proceed through sequential, one-electron steps. Reduction by the inner-sphere reductant [TiCp2Cl]2 is also likely to result in ligand reduction in the first instance but, in contrast to the outer-sphere case, reduction of the uranium centre becomes much more favoured, allowing the formation of a crystallographically characterised, doubly-titanated U(iv) complex. In the case of inner-sphere reduction only, ligand-to-metal electron-transfer is thermodynamically driven by coordination of Lewis-acidic Ti(iv) to the uranyl oxo, and is energetically preferable over the disproportionation of U(v). Overall, the involvement of the redox-active dipyrrin ligand in the reduction chemistry of UO2Cl(L) is inherent to both inner- and outer-sphere reduction mechanisms, providing a new route to accessing a variety of U(vi), U(v), and U(iv) complexes.
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Affiliation(s)
- James R Pankhurst
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Nicola L Bell
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Markus Zegke
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Lucy N Platts
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Carlos Alvarez Lamfsus
- LPCNO , INSA , Université de Toulouse , 135, avenue de Rangueil , 31077 Toulouse cedex 4 , France
| | - Laurent Maron
- LPCNO , INSA , Université de Toulouse , 135, avenue de Rangueil , 31077 Toulouse cedex 4 , France
| | - Louise S Natrajan
- Centre for Radiochemisty Research , School of Chemistry , The University of Manchester , Oxford Road , Manchester , M13 9PL , UK
| | - Stephen Sproules
- WestCHEM School of Chemistry , University of Glasgow , Glasgow , G12 8QQ , UK
| | - Polly L Arnold
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Jason B Love
- EaStCHEM School of Chemistry , The University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
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57
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Chatelain L, White S, Scopelliti R, Mazzanti M. Isolation of a Star-Shaped Uranium(V/VI) Cluster from the Anaerobic Photochemical Reduction of Uranyl(VI). Angew Chem Int Ed Engl 2016; 55:14325-14329. [PMID: 27739649 DOI: 10.1002/anie.201608754] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Indexed: 11/09/2022]
Abstract
Actinide oxo clusters are an important class of compounds due to their impact on actinide migration in the environment. The photolytic reduction of uranyl(VI) has potential application in catalysis and spent nuclear fuel reprocessing, but the intermediate species involved in this reduction have not yet been elucidated. Here we show that the photolysis of partially hydrated uranyl(VI) in anaerobic conditions leads to the reduction of uranyl(VI), and to the incorporation of the resulting UV species into the stable mixed-valent star-shaped UVI /UV oxo cluster [U(UO2 )5 (μ3 -O)5 (PhCOO)5 (Py)7 ] (1). This cluster is only the second example of a UVI /UV cluster and the first one associating uranyl groups to a non-uranyl(V) center. The UV center in 1 is stable, while the reaction of uranyl(V) iodide with potassium benzoate leads to immediate disproportionation and formation of the U12IV U4V O24 cluster {[K(Py)2 ]2 [K(Py)]2 [U16 O24 (PhCOO)24 (Py)2 ]} (5).
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Affiliation(s)
- Lucile Chatelain
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-, 1015, Lausanne, Switzerland
| | - Sarah White
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-, 1015, Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-, 1015, Lausanne, Switzerland
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-, 1015, Lausanne, Switzerland.
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58
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Chatelain L, White S, Scopelliti R, Mazzanti M. Isolation of a Star-Shaped Uranium(V/VI) Cluster from the Anaerobic Photochemical Reduction of Uranyl(VI). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608754] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lucile Chatelain
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-; 1015 Lausanne Switzerland
| | - Sarah White
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-; 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-; 1015 Lausanne Switzerland
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques; Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-; 1015 Lausanne Switzerland
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59
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Mei L, Wu QY, Yuan LY, Wang L, An SW, Xie ZN, Hu KQ, Chai ZF, Burns PC, Shi WQ. An Unprecedented Two-Fold Nested Super-Polyrotaxane: Sulfate-Directed Hierarchical Polythreading Assembly of Uranyl Polyrotaxane Moieties. Chemistry 2016; 22:11329-38. [PMID: 27389048 DOI: 10.1002/chem.201601506] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Indexed: 12/25/2022]
Abstract
The hierarchical assembly of well-organized submoieties could lead to more complicated superstructures with intriguing properties. We describe herein an unprecedented polyrotaxane polythreading framework containing a two-fold nested super-polyrotaxane substructure, which was synthesized through a uranyl-directed hierarchical polythreading assembly of one-dimensional polyrotaxane chains and two-dimensional polyrotaxane networks. This special assembly mode actually affords a new way of supramolecular chemistry instead of covalently linked bulky stoppers to construct stable interlocked rotaxane moieties. An investigation of the synthesis condition shows that sulfate can assume a vital role in mediating the formation of different uranyl species, especially the unique trinuclear uranyl moiety [(UO2 )3 O(OH)2 ](2+) , involving a notable bent [O=U=O] bond with a bond angle of 172.0(9)°. Detailed analysis of the coordination features, the thermal stability as well as a fluorescence, and electrochemical characterization demonstrate that the uniqueness of this super-polyrotaxane structure is mainly closely related to the trinuclear uranyl moiety, which is confirmed by quantum chemical calculations.
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Affiliation(s)
- Lei Mei
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Li-Yong Yuan
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Lin Wang
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Shu-Wen An
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Zhen-Ni Xie
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Kong-Qiu Hu
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China.,School of Radiological and Interdisciplinary Sciences and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, P.R. China
| | - Peter C Burns
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA.
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry and Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P.R. China.
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60
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61
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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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62
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Chen L, Zheng T, Bao S, Zhang L, Liu H, Zheng L, Wang J, Wang Y, Diwu J, Chai Z, Albrecht‐Schmitt TE, Wang S. A Mixed‐Valent Uranium Phosphonate Framework Containing U
IV
, U
V
, and U
VI. Chemistry 2016; 22:11954-7. [DOI: 10.1002/chem.201602863] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Lanhua Chen
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
| | - Tao Zheng
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
| | - Songsong Bao
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China
| | - Linjuan Zhang
- Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology Chinese Academy of Sciences 201800 Shanghai P. R. China
| | - Hsin‐Kuan Liu
- Department of Chemistry National Central University Jhongli 320 Taiwan
| | - Limin Zheng
- State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China
| | - Jianqiang Wang
- Shanghai Institute of Applied Physics and Key Laboratory of Nuclear Radiation and Nuclear Energy Technology Chinese Academy of Sciences 201800 Shanghai P. R. China
| | - Yaxing Wang
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
| | - Juan Diwu
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
| | - Zhifang Chai
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
| | - Thomas E. Albrecht‐Schmitt
- Department of Chemistry and Biochemistry Florida State University 95 Chieftain Way Tallahassee Florida 32306 USA
| | - Shuao Wang
- School for Radiological and interdisciplinary Sciences (RAD-X) Soochow University 199 Renai Road Suzhou 215123 China
- Collaborative Innovation Center of Radiation Medicine Jiangsu Higher Education Institutions 199 Renai Road Suzhou 215123 China
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63
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Organometallic neptunium(III) complexes. Nat Chem 2016; 8:797-802. [PMID: 27442286 DOI: 10.1038/nchem.2520] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/25/2016] [Indexed: 11/08/2022]
Abstract
Studies of transuranic organometallic complexes provide a particularly valuable insight into covalent contributions to the metal-ligand bonding, in which the subtle differences between the transuranium actinide ions and their lighter lanthanide counterparts are of fundamental importance for the effective remediation of nuclear waste. Unlike the organometallic chemistry of uranium, which has focused strongly on U(III) and has seen some spectacular advances, that of the transuranics is significantly technically more challenging and has remained dormant. In the case of neptunium, it is limited mainly to Np(IV). Here we report the synthesis of three new Np(III) organometallic compounds and the characterization of their molecular and electronic structures. These studies suggest that Np(III) complexes could act as single-molecule magnets, and that the lower oxidation state of Np(II) is chemically accessible. In comparison with lanthanide analogues, significant d- and f-electron contributions to key Np(III) orbitals are observed, which shows that fundamental neptunium organometallic chemistry can provide new insights into the behaviour of f-elements.
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64
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Pedrick EA, Schultz JW, Wu G, Mirica LM, Hayton TW. Perturbation of the O–U–O Angle in Uranyl by Coordination to a 12-Membered Macrocycle. Inorg Chem 2016; 55:5693-701. [DOI: 10.1021/acs.inorgchem.6b00799] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elizabeth A. Pedrick
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Jason W. Schultz
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Liviu M. Mirica
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
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65
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Tsoureas N, Kilpatrick AFR, Inman CJ, Cloke FGN. Steric control of redox events in organo-uranium chemistry: synthesis and characterisation of U(v) oxo and nitrido complexes. Chem Sci 2016; 7:4624-4632. [PMID: 30155110 PMCID: PMC6013772 DOI: 10.1039/c6sc00632a] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/08/2016] [Indexed: 12/16/2022] Open
Abstract
Controlling the steric environment in U(η8-C8H6(1,4-SiR3)2)(η5-Cp*)] enables selective formation of either mononuclear U(v) or dinuclear U(iv) oxo and nitrido complexes.
The synthesis and molecular structures of a U(v) neutral terminal oxo complex and a U(v) sodium uranium nitride contact ion pair are described. The synthesis of the former is achieved by the use of tBuNCO as a mild oxygen transfer reagent, whilst that of the latter is via the reduction of NaN3. Both mono-uranium complexes are stabilised by the presence of bulky silyl substituents on the ligand framework that facilitate a 2e– oxidation of a single U(iii) centre. In contrast, when steric hindrance around the metal centre is reduced by the use of less bulky silyl groups, the products are di-uranium, U(iv) bridging oxo and (anionic) nitride complexes, resulting from 1e– oxidations of two U(iii) centres. SQUID magnetometry supports the formal oxidation states of the reported complexes. Electrochemical studies show that the U(v) terminal oxo complex can be reduced and the [U(iv)O]– anion was accessed via reduction with K/Hg, and structurally characterised. Both the nitride complexes display complex electrochemical behaviour but each exhibits a quasi-reversible oxidation at ca. –1.6 V vs. Fc+/0.
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Affiliation(s)
- Nikolaos Tsoureas
- School of Life Sciences , Division of Chemistry , University of Sussex , Falmer , Brighton , BN1 9QJ , UK .
| | - Alexander F R Kilpatrick
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , 12 Mansfield Road , OX1 3TA , Oxford , UK
| | - Christopher J Inman
- School of Life Sciences , Division of Chemistry , University of Sussex , Falmer , Brighton , BN1 9QJ , UK .
| | - F Geoffrey N Cloke
- School of Life Sciences , Division of Chemistry , University of Sussex , Falmer , Brighton , BN1 9QJ , UK .
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66
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Hlina JA, Pankhurst JR, Kaltsoyannis N, Arnold PL. Metal-Metal Bonding in Uranium-Group 10 Complexes. J Am Chem Soc 2016; 138:3333-45. [PMID: 26942560 PMCID: PMC4796865 DOI: 10.1021/jacs.5b10698] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
![]()
Heterobimetallic
complexes containing short uranium–group
10 metal bonds have been prepared from monometallic IUIV(OArP-κ2O,P)3 (2) {[ArPO]− = 2-tert-butyl-4-methyl-6-(diphenylphosphino)phenolate}.
The U–M bond in IUIV(μ-OArP-1κ1O,2κ1P)3M0, M = Ni (3–Ni), Pd (3–Pd), and Pt (3–Pt), has been
investigated by experimental and DFT computational methods. Comparisons
of 3–Ni with two further U–Ni complexes
XUIV(μ-OArP-1κ1O,2κ1P)3Ni0, X = Me3SiO (4) and F (5), was also possible via iodide substitution. All complexes were
characterized by variable-temperature NMR spectroscopy, electrochemistry,
and single crystal X-ray diffraction. The U–M bonds are significantly
shorter than any other crystallographically characterized d–f-block
bimetallic, even though the ligand flexes to allow a variable U–M
separation. Excellent agreement is found between the experimental
and computed structures for 3–Ni and 3–Pd. Natural population analysis and natural localized molecular orbital
(NLMO) compositions indicate that U employs both 5f and 6d orbitals
in covalent bonding to a significant extent. Quantum theory of atoms-in-molecules
analysis reveals U–M bond critical point properties typical
of metallic bonding and a larger delocalization index (bond order)
for the less polar U–Ni bond than U–Pd. Electrochemical
studies agree with the computational analyses and the X-ray structural
data for the U–X adducts 3–Ni, 4, and 5. The data show a trend in uranium–metal
bond strength that decreases from 3–Ni down to 3–Pt and suggest that exchanging the iodide for a fluoride
strengthens the metal–metal bond. Despite short U–TM
(transition metal) distances, four other computational approaches
also suggest low U–TM bond orders, reflecting highly transition
metal localized valence NLMOs. These are more so for 3–Pd than 3–Ni, consistent with slightly larger U–TM
bond orders in the latter. Computational studies of the model systems
(PH3)3MU(OH)3I (M = Ni, Pd) reveal
longer and weaker unsupported U–TM bonds vs 3.
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Affiliation(s)
- Johann A Hlina
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U.K
| | - James R Pankhurst
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U.K
| | - Nikolas Kaltsoyannis
- Department of Chemistry, University College London , 20 Gordon Street, London, WC1H 0AJ, U.K.,School of Chemistry, University of Manchester , Oxford Road, Manchester, M13 9PL, U.K
| | - Polly L Arnold
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U.K
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67
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Teyar B, Belkhiri L, Costuas K, Boucekkine A, Meyer K. Electronic Structure and Magnetic Properties of Dioxo-Bridged Diuranium Complexes with Diamond-Core Structural Motifs: A Relativistic DFT Study. Inorg Chem 2016; 55:2870-81. [PMID: 26930424 DOI: 10.1021/acs.inorgchem.5b02704] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Electronic structures and magnetic properties of the binuclear bis(μ-oxo) U(IV)/U(IV) K2[{(((nP,Me)ArO)3tacn)U(IV)}2(μ-O)2] and U(V)/U(V) [{(((nP,Me)ArO)3tacn)U(V)}2(μ-O)2] (tacn = triazacyclononane, nP = neopentyl) complexes, exhibiting [U(μ-O)2U] diamond-core structural motifs, have been investigated computationally using scalar relativistic Density Functional Theory (DFT) combined with the Broken Symmetry (BS) approach for their magnetic properties. Using the B3LYP hybrid functional, the BS ground state of the pentavalent [U(V)(μ-O)2U(V)] 5f(1)-5f(1) complex has been found of lower energy than the high spin (HS) triplet state, thus confirming the antiferromagnetic character in agreement with experimental magnetic susceptibility measurements. The nonmagnetic character observed for the tetravalent K2[U(IV)(μ-O)2U(IV)] 5f(2)-5f(2) species is also predicted by our DFT calculations, which led practically to the same energy for the HS and BS states. As reported for related dioxo diuranium(V) systems, superexchange is likely to be responsible for the antiferromagnetic coupling through the π-network orbital pathway within the (μ-O)2 bridge, the dissymmetrical structure of the U2O2 core playing a determining role. In the case of the U(IV) species, our computations indicate that the K(+) counterions are likely to play a role for the observed magnetic property. Finally, the MO analysis, in conjunction with NPA and QTAIM analyses, clarify the electronic structures of the studied complexes. In particular, the fact that the experimentally attempted chemical oxidation of the U(V) species does not lead straightforwardly to binuclear complexes U(VI) is clarified by the MO analysis.
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Affiliation(s)
- Billel Teyar
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , Campus de Beaulieu, F-35042 Cedex Rennes, France.,URCHEMS, Département de Chimie, Université des Frères Mentouri , 25017 Constantine, Algeria.,Université Ziane Achour de Djelfa , 17000 Djelfa, Algeria
| | - Lotfi Belkhiri
- URCHEMS, Département de Chimie, Université des Frères Mentouri , 25017 Constantine, Algeria
| | - Karine Costuas
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , Campus de Beaulieu, F-35042 Cedex Rennes, France
| | - Abdou Boucekkine
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , Campus de Beaulieu, F-35042 Cedex Rennes, France
| | - Karsten Meyer
- Department of Chemistry & Pharmacy, Friedrich-Alexander University of Erlangen - Nürnberg (FAU) , Egerlandstrasse 1, D-91058 Erlangen, Germany
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68
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Batrice RJ, Kefalidis CE, Maron L, Eisen MS. Actinide-Catalyzed Intermolecular Addition of Alcohols to Carbodiimides. J Am Chem Soc 2016; 138:2114-7. [DOI: 10.1021/jacs.5b12731] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Rami J. Batrice
- Schulich
Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, 3200008, Israel
| | - Christos E. Kefalidis
- LPCNO, CNRS, & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, Toulouse, 31077, France
| | - Laurent Maron
- LPCNO, CNRS, & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, Toulouse, 31077, France
| | - Moris S. Eisen
- Schulich
Faculty of Chemistry, Technion − Israel Institute of Technology, Technion City, 3200008, Israel
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69
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Herasymchuk K, Chiang L, Hayes CE, Brown ML, Ovens JS, Patrick BO, Leznoff DB, Storr T. Synthesis and electronic structure determination of uranium(vi) ligand radical complexes. Dalton Trans 2016; 45:12576-86. [DOI: 10.1039/c6dt02089e] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pentagonal bipyramidal uranyl (UO22+) complexes of salen ligands were prepared and the electronic structure of the one-electron oxidized species[1a–c]+were investigated in solution.
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Affiliation(s)
| | - Linus Chiang
- Department of Chemistry
- Simon Fraser University
- Burnaby
- Canada
| | | | | | | | - Brian O. Patrick
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | | | - Tim Storr
- Department of Chemistry
- Simon Fraser University
- Burnaby
- Canada
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70
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Bao Z, Zhao HB, Qu N, Schreckenbach G, Pan QJ. Theoretical investigation of low-valent uranium and transuranium complexes of a flexible small-cavity macrocycle: structural, formation reaction and redox properties. Dalton Trans 2016; 45:15970-15982. [DOI: 10.1039/c6dt01930g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Size matching of a flexible macrocycle with low-valent actinide(III/IV) ions as well as their bonding determines different coordination modes.
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Affiliation(s)
- Zhe Bao
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China 150080
| | - Hong-Bo Zhao
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China 150080
| | - Ning Qu
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China 150080
| | | | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China 150080
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71
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Zheng XJ, Bell NL, Stevens CJ, Zhong YX, Schreckenbach G, Arnold PL, Love JB, Pan QJ. Relativistic DFT and experimental studies of mono- and bis-actinyl complexes of an expanded Schiff-base polypyrrole macrocycle. Dalton Trans 2016; 45:15910-15921. [DOI: 10.1039/c6dt01625a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Relativistic DFT calculations present accurate geometries of complexes and redox properties, confirmed by the newly-developed experimental syntheses.
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Affiliation(s)
- Xiu-Jun Zheng
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- China
| | - Nicola L. Bell
- EaStCHEM School of Chemistry
- University of Edinburgh
- Edinburgh
- UK
| | | | - Yu-Xi Zhong
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- China
| | | | - Polly L. Arnold
- EaStCHEM School of Chemistry
- University of Edinburgh
- Edinburgh
- UK
| | - Jason B. Love
- EaStCHEM School of Chemistry
- University of Edinburgh
- Edinburgh
- UK
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry of Education Ministry
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- China
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72
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Chatelain L, Pécaut J, Tuna F, Mazzanti M. Heterometallic Fe2II-UVand Ni2II-UVExchange-Coupled Single-Molecule Magnets: Effect of the 3 d Ion on the Magnetic Properties. Chemistry 2015; 21:18038-42. [DOI: 10.1002/chem.201503637] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Indexed: 11/10/2022]
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73
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Su DM, Zheng XJ, Schreckenbach G, Pan QJ. Highly Diverse Bonding between Two U3+ Ions When Ligated by a Flexible Polypyrrolic Macrocycle. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00649] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong-Mei Su
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
| | - Xiu-Jun Zheng
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
| | - Georg Schreckenbach
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada, R3T 2N2
| | - Qing-Jiang Pan
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China 150080
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74
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A relativistic DFT probe of energetics and structural properties of catalytically important macrocyclic diuranium(III) complexes. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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75
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Batrice RJ, McKinven J, Arnold PL, Eisen MS. Selective Oligomerization and [2 + 2 + 2] Cycloaddition of Terminal Alkynes from Simple Actinide Precatalysts. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00455] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rami J. Batrice
- Schulich
Faculty of Chemistry, Institute of Catalysis Science and Technology, Technion − Israel Institute of Technology, Technion City, 32000, Haifa, Israel
| | - Jamie McKinven
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Building, Edinburgh EH9 3FJ, United Kingdom
| | - Polly L. Arnold
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Building, Edinburgh EH9 3FJ, United Kingdom
| | - Moris S. Eisen
- Schulich
Faculty of Chemistry, Institute of Catalysis Science and Technology, Technion − Israel Institute of Technology, Technion City, 32000, Haifa, Israel
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76
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Anderson NH, Yin H, Kiernicki JJ, Fanwick PE, Schelter EJ, Bart SC. Investigation of Uranium Tris(imido) Complexes: Synthesis, Characterization, and Reduction Chemistry of [U(NDIPP)
3
(thf)
3
]. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nickolas H. Anderson
- H.C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, IN 47907 (USA)
| | - Haolin Yin
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104 (USA)
| | - John J. Kiernicki
- H.C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, IN 47907 (USA)
| | - Phillip E. Fanwick
- H.C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, IN 47907 (USA)
| | - Eric J. Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104 (USA)
| | - Suzanne C. Bart
- H.C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, IN 47907 (USA)
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77
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Anderson NH, Yin H, Kiernicki JJ, Fanwick PE, Schelter EJ, Bart SC. Investigation of Uranium Tris(imido) Complexes: Synthesis, Characterization, and Reduction Chemistry of [U(NDIPP)3(thf)3]. Angew Chem Int Ed Engl 2015; 54:9386-9. [DOI: 10.1002/anie.201503771] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 05/15/2015] [Indexed: 11/07/2022]
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78
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Liddle ST. The Renaissance of Non-Aqueous Uranium Chemistry. Angew Chem Int Ed Engl 2015; 54:8604-41. [PMID: 26079536 DOI: 10.1002/anie.201412168] [Citation(s) in RCA: 338] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/29/2015] [Indexed: 12/11/2022]
Abstract
Prior to the year 2000, non-aqueous uranium chemistry mainly involved metallocene and classical alkyl, amide, or alkoxide compounds as well as established carbene, imido, and oxo derivatives. Since then, there has been a resurgence of the area, and dramatic developments of supporting ligands and multiply bonded ligand types, small-molecule activation, and magnetism have been reported. This Review 1) introduces the reader to some of the specialist theories of the area, 2) covers all-important starting materials, 3) surveys contemporary ligand classes installed at uranium, including alkyl, aryl, arene, carbene, amide, imide, nitride, alkoxide, aryloxide, and oxo compounds, 4) describes advances in the area of single-molecule magnetism, and 5) summarizes the coordination and activation of small molecules, including carbon monoxide, carbon dioxide, nitric oxide, dinitrogen, white phosphorus, and alkanes.
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Affiliation(s)
- Stephen T Liddle
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (UK).
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79
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80
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Pankhurst JR, Cadenbach T, Betz D, Finn C, Love JB. Towards dipyrrins: oxidation and metalation of acyclic and macrocyclic Schiff-base dipyrromethanes. Dalton Trans 2015; 44:2066-70. [PMID: 25563854 DOI: 10.1039/c4dt03592e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of acyclic Schiff-base dipyrromethanes cleanly results in dipyrrins, whereas the macrocyclic 'Pacman' analogues either decompose or form new dinuclear copper(ii) complexes that are inert to ligand oxidation; the unhindered hydrogen substituent at the meso-carbon allows new structural motifs to form.
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Affiliation(s)
- James R Pankhurst
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK.
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81
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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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82
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Chen F, Wang CZ, Li ZJ, Lan JH, Ji YQ, Chai ZF. New Three-Fold Interpenetrated Uranyl Organic Framework Constructed by Terephthalic Acid and Imidazole Derivative. Inorg Chem 2015; 54:3829-34. [DOI: 10.1021/acs.inorgchem.5b00013] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fei Chen
- China CDC Key Laboratory of Radiological
Pretection and Nuclear Emergency, National Institute for Radiological Protection, China CDC, Beijing 100088, People’s Republic of China
- Key Lab of Nuclear Radiation
and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Cong-zhi Wang
- Key Lab of Nuclear Radiation
and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zi-jie Li
- Key Lab of Nuclear Radiation
and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jian-hui Lan
- Key Lab of Nuclear Radiation
and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yan-qin Ji
- China CDC Key Laboratory of Radiological
Pretection and Nuclear Emergency, National Institute for Radiological Protection, China CDC, Beijing 100088, People’s Republic of China
| | - Zhi-fang Chai
- Key Lab of Nuclear Radiation
and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
- School of Radiological&Interdisciplinary Sciences, Soochow University, Suzhou 215123, People’s Republic of China
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83
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Arnold PL, Pécharman AF, Lord RM, Jones GM, Hollis E, Nichol GS, Maron L, Fang J, Davin T, Love JB. Control of oxo-group functionalization and reduction of the uranyl ion. Inorg Chem 2015; 54:3702-10. [PMID: 25799215 DOI: 10.1021/acs.inorgchem.5b00420] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Uranyl complexes of a large, compartmental N8-macrocycle adopt a rigid, "Pacman" geometry that stabilizes the U(V) oxidation state and promotes chemistry at a single uranyl oxo-group. We present here new and straightforward routes to singly reduced and oxo-silylated uranyl Pacman complexes and propose mechanisms that account for the product formation, and the byproduct distributions that are formed using alternative reagents. Uranyl(VI) Pacman complexes in which one oxo-group is functionalized by a single metal cation are activated toward single-electron reduction. As such, the addition of a second equivalent of a Lewis acidic metal complex such as MgN″2 (N″ = N(SiMe3)2) forms a uranyl(V) complex in which both oxo-groups are Mg functionalized as a result of Mg-N bond homolysis. In contrast, reactions with the less Lewis acidic complex [Zn(N″)Cl] favor the formation of weaker U-O-Zn dative interactions, leading to reductive silylation of the uranyl oxo-group in preference to metalation. Spectroscopic, crystallographic, and computational analysis of these reactions and of oxo-metalated products isolated by other routes have allowed us to propose mechanisms that account for pathways to metalation or silylation of the exo-oxo-group.
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Affiliation(s)
- Polly L Arnold
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Anne-Frédérique Pécharman
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Rianne M Lord
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Guy M Jones
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Emmalina Hollis
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Gary S Nichol
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
| | - Laurent Maron
- ‡INSA, UPS, LPCNO, University of Toulouse, and CNRS, LPCNO UMR 5215, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Jian Fang
- ‡INSA, UPS, LPCNO, University of Toulouse, and CNRS, LPCNO UMR 5215, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Thomas Davin
- ‡INSA, UPS, LPCNO, University of Toulouse, and CNRS, LPCNO UMR 5215, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Jason B Love
- †EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, Edinburgh EH9 3FJ, U. K
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84
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Zegke M, Nichol GS, Arnold PL, Love JB. Catalytic one-electron reduction of uranyl(VI) to Group 1 uranyl(V) complexes via Al(III) coordination. Chem Commun (Camb) 2015; 51:5876-9. [PMID: 25727815 DOI: 10.1039/c5cc00867k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Reactions between the uranyl(VI) Pacman complex [(UO2)(py)(H2L)] of the Schiff-base polypyrrolic macrocycle L and Tebbe's reagent or DIBAL result in the first selective reductive functionalisation of the uranyl oxo by Al to form [(py)(R2AlOUO)(py)(H2L)] (R = Me or (i)Bu). The clean displacement of the oxo-coordinated Al(III) by Group 1 cations has enabled the development of a one-pot, DIBAL-catalysed reduction of the U(VI) uranyl complexes to a series of new, mono-oxo alkali-metal-functionalised uranyl(V) complexes [(py)3(MOUO)(py)(H2L)] (M = Li, Na, K).
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Affiliation(s)
- Markus Zegke
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK.
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85
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Cadenbach T, Pankhurst JR, Hofmann TA, Curcio M, Arnold PL, Love JB. Macrocyclic Platforms for the Construction of Tetranuclear Oxo and Hydroxo Zinc Clusters. Organometallics 2015. [DOI: 10.1021/om501244n] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Thomas Cadenbach
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, U.K
| | - James R. Pankhurst
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, U.K
| | - Tommy A. Hofmann
- Department
of Chemistry, Technische Universität München, Lichtenbergstraße
4, D-85747 Garching, Germany
| | - Massimiliano Curcio
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, U.K
| | - Polly L. Arnold
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, U.K
| | - Jason B. Love
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh EH9 3FJ, U.K
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86
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Das RK, Barnea E, Andrea T, Kapon M, Fridman N, Botoshansky M, Eisen MS. Group 4 Lanthanide and Actinide Organometallic Inclusion Complexes. Organometallics 2015. [DOI: 10.1021/om501103v] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Raj K. Das
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Eyal Barnea
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Tamer Andrea
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Moshe Kapon
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Mark Botoshansky
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Moris S. Eisen
- Schulich Faculty of Chemistry
and Institute of Catalysis Science and Technology, Technion-Israel Institute of Technology, Haifa 32000, Israel
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87
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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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88
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Tecmer P, Boguslawski K, Ayers PW. Singlet ground state actinide chemistry with geminals. Phys Chem Chem Phys 2015; 17:14427-36. [DOI: 10.1039/c4cp05293e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the first application of the variationally orbital optimized antisymmetric product of 1-reference orbital geminals (vOO-AP1roG) method to singlet-state actinide chemistry.
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Affiliation(s)
- Paweł Tecmer
- Department of Chemistry and Chemical Biology
- McMaster University
- Canada
| | | | - Paul W. Ayers
- Department of Chemistry and Chemical Biology
- McMaster University
- Canada
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89
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Abstract
This review highlights fundamental concepts and synthetic strategies of SMMs and selected examples of 3d, 4f, 5f and mixed 3d–4f, 4d–5d and 3d–5f based SMMs are discussed.
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Affiliation(s)
| | | | - Sanjit Konar
- Department of Chemistry
- IISER Bhopal
- Bhopal 462066
- India
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90
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Abstract
Actinide single-molecule magnets compose a small yet complex consortium, presenting new design and characterization challenges for magnetochemists and physicists.
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91
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Schmidt AC, Heinemann FW, Maron L, Meyer K. A Series of Uranium (IV, V, VI) Tritylimido Complexes, Their Molecular and Electronic Structures and Reactivity with CO2. Inorg Chem 2014; 53:13142-53. [DOI: 10.1021/ic5023517] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Anna-Corina Schmidt
- Department
of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Egerlandstr. 1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department
of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Egerlandstr. 1, 91058 Erlangen, Germany
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Karsten Meyer
- Department
of Chemistry and Pharmacy, Inorganic Chemistry, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Egerlandstr. 1, 91058 Erlangen, Germany
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92
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Karmel ISR, Fridman N, Tamm M, Eisen MS. Mono(imidazolin-2-iminato) Actinide Complexes: Synthesis and Application in the Catalytic Dimerization of Aldehydes. J Am Chem Soc 2014; 136:17180-92. [DOI: 10.1021/ja5091436] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isabell S. R. Karmel
- Schulich
Faculty of Chemistry, Institute of Catalysis Science and Technology, Technion − Israel Institute of Technology, Technion City, 32000 Israel
| | - Natalia Fridman
- Schulich
Faculty of Chemistry, Institute of Catalysis Science and Technology, Technion − Israel Institute of Technology, Technion City, 32000 Israel
| | - Matthias Tamm
- Institut
für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Moris S. Eisen
- Schulich
Faculty of Chemistry, Institute of Catalysis Science and Technology, Technion − Israel Institute of Technology, Technion City, 32000 Israel
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93
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Pedrick EA, Wu G, Hayton TW. Reductive silylation of the uranyl ion with Ph3SiOTf. Inorg Chem 2014; 53:12237-9. [PMID: 25434504 DOI: 10.1021/ic502267t] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The reaction of 2 equiv of Ph3SiOTf with UO2(dbm)2(THF) (dbm = OC(Ph)CHC(Ph)O) and UO2((Ar)acnac)2 ((Ar)acnac = ArNC(Ph)CHC(Ph)O; Ar = 3,5-(t)Bu2C6H3) results in the formation of U(OSiPh3)2(dbm)2(OTf) (1) and [U(OSiPh3)2((Ar)acnac)2][OTf] (2), respectively, in good yield.
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Affiliation(s)
- Elizabeth A Pedrick
- Department of Chemistry and Biochemistry, University of California, Santa Barbara , Santa Barbara, California 93106, United States
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94
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Arnold PL, McMullon MW, Rieb J, Kühn FE. CH Bond Activation by f‐Block Complexes. Angew Chem Int Ed Engl 2014; 54:82-100. [DOI: 10.1002/anie.201404613] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (UK)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Max W. McMullon
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (UK)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Julia Rieb
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Germany)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Fritz E. Kühn
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Germany)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
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95
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Arnold PL, McMullon MW, Rieb J, Kühn FE. C‐H‐Aktivierung mit Komplexen der f‐Block‐Elemente. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404613] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (Großbritannien)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Max W. McMullon
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (Großbritannien)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Julia Rieb
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Deutschland)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Fritz E. Kühn
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Deutschland)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
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96
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Self-Assembly of a 3d-5f Trinuclear Single-Molecule Magnet from a Pentavalent Uranyl Complex. Angew Chem Int Ed Engl 2014; 53:13434-8. [DOI: 10.1002/anie.201407334] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 08/26/2014] [Indexed: 11/07/2022]
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97
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Chatelain L, Walsh JPS, Pécaut J, Tuna F, Mazzanti M. Self-Assembly of a 3d-5f Trinuclear Single-Molecule Magnet from a Pentavalent Uranyl Complex. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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98
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Affiliation(s)
- Douglas R Kindra
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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99
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Affiliation(s)
- Cory J. Windorff
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
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100
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Arnold PL, Stevens CJ, Farnaby JH, Gardiner MG, Nichol GS, Love JB. New Chemistry from an Old Reagent: Mono- and Dinuclear Macrocyclic Uranium(III) Complexes from [U(BH4)3(THF)2]. J Am Chem Soc 2014; 136:10218-21. [DOI: 10.1021/ja504835a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Charlotte J. Stevens
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Joy H. Farnaby
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Michael G. Gardiner
- School
of Physical Sciences (Chemistry), University of Tasmania, Private
Bag 75, Hobart, Tasmania 7001, Australia
| | - Gary S. Nichol
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
| | - Jason B. Love
- EaStCHEM
School of Chemistry, University of Edinburgh, The King’s Buildings, Edinburgh EH9 3JJ, U. K
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