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Tarlton M, Carpenter SH, Tondreau AM. Alkyl Coordination in meso-(ONO) 2- Supported Uranium(IV) Complexes. Organometallics 2024; 43:1329-1333. [PMID: 38938898 PMCID: PMC11203667 DOI: 10.1021/acs.organomet.4c00069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 06/29/2024]
Abstract
A series of U(IV) complexes bearing alkyl and chloride ligands in the trans configuration was synthesized and characterized. Starting with the diastereopure U(IV) trans-dichloride complex meso-( tBu2PONO)UCl2(dtbpy) (1, tBu2PONO = 2,6-bis((di-tert-butylphosphino)methanolato)pyridine), four distinct alkyl groups were employed to prepare ( tBu2PONO)U(R)Cl(dtbpy), where R = (trimethylsilyl)methyl (neosilyl), 2a, R = 2,2-dimethyl propyl (neopentyl), 2b, and R = 2-methyl-2-phenyl propyl (neophyl), 2c. Alkylation occurs with specificity but generates a predominant species and a minor species corresponding to anti/syn regioisomers relative to the tBu2P groups of the ligand. For synthesis using R = methyl, the dimethyl complex ( tBu2PONO)U(Me)2(dtbpy), 2d, was prepared; the addition of 1 equiv of MeLi produced a mixture of products. Complexes 2a-2d were characterized using single crystal X-ray diffraction (SC-XRD), UV-vis-nIR, and 1H and 31P NMR spectroscopies.
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Affiliation(s)
- Michael
L. Tarlton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
| | | | - Aaron M. Tondreau
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States
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Du J, Dollberg K, Seed JA, Wooles AJ, von Hänisch C, Liddle ST. Thorium(IV)-antimony complexes exhibiting single, double, and triple polar covalent metal-metal bonds. Nat Chem 2024; 16:780-790. [PMID: 38378948 DOI: 10.1038/s41557-024-01448-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 01/11/2024] [Indexed: 02/22/2024]
Abstract
There is continued burgeoning interest in metal-metal multiple bonding to further our understanding of chemical bonding across the periodic table. However, although polar covalent metal-metal multiple bonding is well known for the d and p blocks, it is relatively underdeveloped for actinides. Homometallic examples are found in spectroscopic or fullerene-confined species, and heterometallic variants exhibiting a polar covalent σ bond supplemented by up to two dative π bonds are more prevalent. Hence, securing polar covalent actinide double and triple metal-metal bonds under normal experimental conditions has been a fundamental target. Here we exploit the protonolysis and dehydrocoupling chemistry of the parent dihydrogen-antimonide anion, to report one-, two- and three-fold thorium-antimony bonds, thus introducing polar covalent actinide-metal multiple bonding under normal experimental conditions between some of the heaviest ions in the periodic table with little or no bulky-substituent protection at the antimony centre. This provides fundamental insights into heavy element multiple bonding, in particular the tension between orbital-energy-driven and overlap-driven covalency for the actinides in a relativistic regime.
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Affiliation(s)
- Jingzhen Du
- Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Manchester, UK
- College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Kevin Dollberg
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Marburg, Germany
| | - John A Seed
- Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Manchester, UK
| | - Ashley J Wooles
- Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Manchester, UK
| | - Carsten von Hänisch
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Marburg, Germany.
| | - Stephen T Liddle
- Department of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Manchester, UK.
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Andreychuk NR, Vidjayacoumar B, Price JS, Kervazo S, Peeples CA, Emslie DJH, Vallet V, Gomes ASP, Réal F, Schreckenbach G, Ayers PW, Vargas-Baca I, Jenkins HA, Britten JF. Uranium(iv) alkyl cations: synthesis, structures, comparison with thorium(iv) analogues, and the influence of arene-coordination on thermal stability and ethylene polymerization activity. Chem Sci 2022; 13:13748-13763. [PMID: 36544741 PMCID: PMC9710223 DOI: 10.1039/d2sc04302e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/31/2022] [Indexed: 11/12/2022] Open
Abstract
Reaction of [(XA2)U(CH2SiMe3)2] (1; XA2 = 4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene) with 1 equivalent of [Ph3C][B(C6F5)4] in arene solvents afforded the arene-coordinated uranium alkyl cations, [(XA2)U(CH2SiMe3)(η n -arene)][B(C6F5)4] {arene = benzene (2), toluene (3), bromobenzene (4) and fluorobenzene (5)}. Compounds 2, 3, and 5 were crystallographically characterized, and in all cases the arene is π-coordinated. Solution NMR studies of 2-5 suggest that the binding preferences of the [(XA2)U(CH2SiMe3)]+ cation follow the order: toluene ≈ benzene > bromobenzene > fluorobenzene. Compounds 2-4 generated in C6H5R (R = H, Me or Br, respectively) showed no polymerization activity under 1 atm of ethylene. By contrast, 5 and 5-Th (the thorium analogue of 5) in fluorobenzene at 20 and 70 °C achieved ethylene polymerization activities between 16 800 and 139 200 g mol-1 h-1 atm-1, highlighting the extent to which common arene solvents such as toluene can suppress ethylene polymerization activity in sterically open f-element complexes. However, activation of [(XA2)An(CH2SiMe3)2] {M = U (1) or Th (1-Th)} with [Ph3C][B(C6F5)4] in n-alkane solvents did not afford an active polymerization catalyst due to catalyst decomposition, illustrating the critical role of PhX (X = H, Me, Br or F) coordination for alkyl cation stabilization. Gas phase DFT calculations, including fragment interaction calculations with energy decomposition and ETS-NOCV analysis, were carried out on the cationic portion of 2'-Th, 2', 3' and 5' (analogues of 2-Th, 2, 3 and 5 with hydrogen atoms in place of ligand backbone methyl and tert-butyl groups), providing insight into the nature of actinide-arene bonding, which decreases in strength in the order 2'-Th > 2' ≈ 3' > 5'.
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Affiliation(s)
- Nicholas R. Andreychuk
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | | | - Jeffrey S. Price
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | - Sophie Kervazo
- Université Lille, UMR 8523 – Physique des Lasers Atoms et MoleculesF-59000 LilleFrance
| | - Craig A. Peeples
- Department of Chemistry, University of ManitobaWinnipegR3T 2N2ManitobaCanada
| | - David J. H. Emslie
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | - Valérie Vallet
- Université Lille, UMR 8523 – Physique des Lasers Atoms et MoleculesF-59000 LilleFrance
| | - André S. P. Gomes
- Université Lille, UMR 8523 – Physique des Lasers Atoms et MoleculesF-59000 LilleFrance
| | - Florent Réal
- Université Lille, UMR 8523 – Physique des Lasers Atoms et MoleculesF-59000 LilleFrance
| | - Georg Schreckenbach
- Department of Chemistry, University of ManitobaWinnipegR3T 2N2ManitobaCanada
| | - Paul W. Ayers
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | - Ignacio Vargas-Baca
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | - Hilary A. Jenkins
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
| | - James F. Britten
- Department of Chemistry, McMaster University1280 Main St. WestHamiltonL8S 4M1OntarioCanada
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Zhu Q, Fang W, Maron L, Zhu C. Heterometallic Clusters with Uranium-Metal Bonds Supported by Double-Layer Nitrogen-Phosphorus Ligands. Acc Chem Res 2022; 55:1718-1730. [PMID: 35617335 DOI: 10.1021/acs.accounts.2c00180] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
ConspectusHeterometallic clusters with M-M bonds have significantly interested chemists because of their attractive structures and synergistic effects in small-molecule activation and catalysis. However, reports of the isolation of heterometallic clusters with uranium-transition metal (U-TM) bonds remain very limited. In this Account, we describe our research in the construction of heterometallic molecular clusters with multiple U-TM single or multiple bonds supported by novel double-layer N-P ligands. Multimetallic synergistic catalysis and small-molecule activation with these species are also summarized.First, according to the hard-soft acid-base theory, we employed a three-armed N-P ligand, which can be used to construct heterometallic clusters with four or six U-Ni bonds. This strategy was also effective in the construction of complexes with direct rare earth metal-TM bonding. The similar two-armed N-P ligands also are effective platforms for the synthesis of heterometallic complexes with U-Ni, U-Pd, and U-Pt bonds.Second, a set of heterometallic clusters featuring U≡Rh, U≡Co, and U≡Fe triple bonds were constructed under routine experimental conditions. X-ray diffraction analysis of these clusters exhibits the shortest U-TM bond distance (1.9693(4) Å for the U≡Fe triple bond) in these complexes. Theoretical studies reveal that the nature of the triple bond is one covalent σ bond and two TM → U dative π bonds. A large Wiberg bond index (WBI) of 2.93 and a significant degree of covalency for the U≡TM triple bonds were also found in these complexes.Third, these uranium complexes supported by the double-layer N-P ligands exhibit great potential in small-molecule activation. For instance, N2 cleavage without an external reducing agent was achieved by a U(III)-P(III) synergistic six-electron reduction. The synergism between U(III) and P(III) enables the activation of other small molecules, such as O2, P4, and As0(nano), and highlights the importance of the P atom in the double-layer N-P ligand for the activation of small molecules. A heterometallic cluster with U-Rh bonds can break the strong N≡N triple bond in N2 in the presence of potassium graphite, suggesting a synergistic effect between U and Rh. This multimetallic synergistic effect was also observed in catalytic processes. A heterometallic cluster with U≡Co triple bonds shows excellent selectivity and activity in the hydroboration of a series of alkynes under mild conditions. These results lead to effective methods for the construction of heterometallic molecular clusters with U-TM single or multiple bonds and could promote the application of heterometallic clusters with U-TM bonds in catalysis and the activation of small molecules.
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Affiliation(s)
- Qin Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei Fang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Laurent Maron
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Congqing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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Selective hydroboration of terminal alkynes catalyzed by heterometallic clusters with uranium–metal triple bonds. Chem 2022. [DOI: 10.1016/j.chempr.2022.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Synthesis and Characterisation of Molecular Polarised-Covalent Thorium-Rhenium and -Ruthenium Bonds. INORGANICS 2021. [DOI: 10.3390/inorganics9050030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Separate reactions of [Th{N(CH2CH2NSiMe2But)2(CH2CH2NSi(Me)(But)(μ-CH2)]2 (1) with [Re(η5-C5H5)2(H)] (2) or [Ru(η5-C5H5)(H)(CO)2] (3) produced, by alkane elimination, [Th(TrenDMBS)Re(η5-C5H5)2] (ThRe, TrenDMBS = {N(CH2CH2NSiMe2But)3}3-), and [Th(TrenDMBS)Ru(η5-C5H5)(CO)2] (ThRu), which were isolated in crystalline yields of 71% and 62%, respectively. Complex ThRe is the first example of a molecular Th-Re bond to be structurally characterised, and ThRu is only the second example of a structurally authenticated Th-Ru bond. By comparison to isostructural U-analogues, quantum chemical calculations, which are validated by IR and Raman spectroscopic data, suggest that the Th-Re and Th-Ru bonds reported here are more ionic than the corresponding U-Re and U-Ru bonds.
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Feng G, McCabe KN, Wang S, Maron L, Zhu C. Construction of heterometallic clusters with multiple uranium-metal bonds by using dianionic nitrogen-phosphorus ligands. Chem Sci 2020; 11:7585-7592. [PMID: 34094135 PMCID: PMC8152682 DOI: 10.1039/d0sc00389a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Compared with the prevalent metal–metal bond in transition metals, examples of the actinide–metal bond in heterometallic clusters are rare. Herein, a series of heterometallic clusters with multiple uranium–metal bonds has been prepared based on two newly synthesized nitrogen–phosphorus ligands L1 {O[(CH2)2NHP(iPr)2]2} and L2 {[CH2O(CH2)2NHP(iPr)2]2}. Different P–P distances, 6.069 and 4.464 Å, are observed in the corresponding uranium complexes 1 {O[(CH2)2NP(iPr)2]2UCl2} and 2 {[CH2O(CH2)2NP(iPr)2]2UCl2}, respectively, and lead to the different coordination modes with transition metals. The reactions of zero-valent group 10 metal compounds with complex 1 generate heterometallic clusters (3-U2Ni2 and 4-U2Pd2) featuring four uranium–metal bonds; whereas reactions with 2 afford one-dimensional metal-chain 5-(UNi)n, bimetallic species 6-UPd, and a tri-platinum bridged diuranium molecular cluster 7-U2Pt3. Complex 5-(UNi)n represents the first infinite chain containing the U–M bond and 7-U2Pt3 is the first species with multiple U–Pt bonds. This study further highlights the important role of ligands in the construction of multiple uranium–metal bonds and may allow the synthesis of novel d–f heterometallic clusters and the investigation of their applications in catalysis and small-molecule activation. Compared with the prevalent metal–metal bond in transition metals, examples of the actinide–metal bond in heterometallic clusters are rare.![]()
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Affiliation(s)
- Genfeng Feng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing China
| | - Karl N McCabe
- LPCNO, CNRS & INSA, Université Paul Sabatier 135 Avenue de Rangueil Toulouse France
| | - Shuao Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University Suzhou China
| | - Laurent Maron
- LPCNO, CNRS & INSA, Université Paul Sabatier 135 Avenue de Rangueil Toulouse France
| | - Congqing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University Nanjing China
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Zhang YY, Lv JW, Dong XJ, Fang Q, Tan WF, Wu XY, Deng QW. Influence on Uranium(VI) migration in soil by iron and manganese salts of humic acid: Mechanism and behavior. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113369. [PMID: 31662254 DOI: 10.1016/j.envpol.2019.113369] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 09/23/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
Soil contains large amounts of humic acid (HA), iron ions and manganese ions, all of which affect U(VI) migration in the soil. HA interacts with iron and manganese ions to form HA salts (called HA-Fe and HA-Mn in this paper); however, the effects of HA-Fe and HA-Mn on the migration of U(VI) is not fully understood. In this study, HA-Fe and HA-Mn were compounded by HA interactions with ferric chloride hexahydrate and manganese chloride tetrahydrate, respectively. The influence of HA, HA-Fe and HA-Mn on U(VI) immobilization and migration was investigated by bath adsorption experiments and adsorption-desorption experiments using soil columns. The results showed that the presence of HA, HA-Fe and HA-Mn retarded the migration of U(VI) in soil. Supported by X-ray photoelectron spectroscopy (XPS) and BCR sequential extraction analyses, a plausible explanation for the retardation was that HA-Fe and HA-Mn could reduce hexavalent uranium to stable tetravalent uranium and increase the specific gravity of Fe/Mn oxide-bound uranium and organic/sulfide-bound uranium, which made it difficult for them to longitudinally migrate in soil. Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and surface area and pore size analyses indicated that the complex formed between the hydroxyl, amino and carboxyl groups of HA-Fe and U(VI) increased the crystallinity of HA-Fe. The reaction between U(VI) and the hydroxyl, amino, aldehyde, keto and chlorine-containing groups of HA-Mn had no effect on the crystallinity of HA-Mn. Notably, the column desorption experiment found that the U(VI) immobilized in the soil remigrated under the effect of rain leaching, and acid rain promoted uranium remigration better than neutral rain. The findings provide some guidance for the decommissioning disposal of uranium contaminated site and it's risk assessments.
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Affiliation(s)
- Yuan-Yuan Zhang
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Jun-Wen Lv
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China; Hengyang Key Laboratory of Contamination Control and Remediation, Hengyang 421001, China.
| | - Xue-Jie Dong
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qi Fang
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China; Hengyang Key Laboratory of Contamination Control and Remediation, Hengyang 421001, China
| | - Wen-Fa Tan
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China; Hengyang Key Laboratory of Contamination Control and Remediation, Hengyang 421001, China
| | - Xiao-Yan Wu
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China; Hengyang Key Laboratory of Contamination Control and Remediation, Hengyang 421001, China
| | - Qin-Wen Deng
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China; Hengyang Key Laboratory of Contamination Control and Remediation, Hengyang 421001, China
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Hatanaka T, Kusunose H, Kawaguchi H, Funahashi Y. Dinitrogen Activation by a Heterometallic VFe Complex Derived from 1,1'‐Bis(arylamido)vanadocene. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tsubasa Hatanaka
- Department of Chemistry Graduate School of Science Osaka University 1–1 Machikaneyama 560–0043 Toyonaka Osaka Japan
| | - Hinano Kusunose
- Department of Chemistry Graduate School of Science Osaka University 1–1 Machikaneyama 560–0043 Toyonaka Osaka Japan
| | - Hiroyuki Kawaguchi
- Department of Chemistry Graduate School of Science Tokyo Institute of Technology 2–12–1 Ookayama, Meguro‐ku 152–8551 Tokyo Japan
| | - Yasuhiro Funahashi
- Department of Chemistry Graduate School of Science Osaka University 1–1 Machikaneyama 560–0043 Toyonaka Osaka Japan
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10
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Qin G, Cheng J. Thorium(iv) trialkyl complexes of non-carbocyclic ligands as highly active isoprene polymerisation catalysts. Dalton Trans 2019; 48:11706-11714. [PMID: 31274141 DOI: 10.1039/c9dt01617a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of mono-anionic non-carbocyclic ligands, including bidentate benzamidinate [PhC(NDipp)2] (Dipp = C6H3-2,6-iPr2), iminophosphinamide [Ph2P(NDipp)2] and phosphinoamide [Ph2PNDipp], and tridentate hydrotris(3,5-dimethyl-1-pyrazolyl)borate (TpMe2) were used to stabilize the corresponding thorium(iv) trialkyl complexes [PhC(NDipp)2]Th(CH2SiMe3)3 (1), [Ph2P(NDipp)2]Th(CH2SiMe3)3 (2), [Ph2P(NDipp)]Th(p-CH2-C6H4-Me)3 (3) and (TpMe2)Th(CH2SiMe3)3 (4), which were characterized by NMR spectroscopy and single-crystal X-ray analysis. Complexes 1-4 in combination with [Ph3C][B(C6F5)4] and AliBu3 form non-Cp-ligated actinide catalyst systems to show high activity and high cis-1,4-selectivity (89.9%) or trans-1,4-selectivity (91.4%) for the polymerization of isoprene. The reaction rate and selectivity of complexes 1 and 2 were controlled by the crowded space around the thorium centre, corroborated by the kinetics of the polymerization and the steric maps.
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Affiliation(s)
- Guorui Qin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun, 130022 China.
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Teyar B, Boucenina S, Belkhiri L, Le Guennic B, Boucekkine A, Mazzanti M. Theoretical Investigation of the Electronic Structure and Magnetic Properties of Oxo-Bridged Uranyl(V) Dinuclear and Trinuclear Complexes. Inorg Chem 2019; 58:10097-10110. [PMID: 31287673 DOI: 10.1021/acs.inorgchem.9b01237] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The uranyl(V) complexes [UO2(dbm)2K(18C6)]2 (dbm = dibenzoylmethanate) and [UO2(L)]3(L = 2-(4-tolyl)-1,3-bis(quinolyl)malondiiminate), exhibiting diamond-shaped U2O2 and triangular-shaped U3O3 cores respectively with 5f1-5f1 and 5f1-5f1-5f1 configurations, have been investigated using relativistic density functional theory (DFT). The bond order and QTAIM analyses reveal that the covalent contribution to the bonding within the oxo cores is slightly more important for U3O3 than for U2O2, in line with the shorter U-O distances existing in the trinuclear complex in comparison to those in the binuclear complex. Using the broken symmetry (BS) approach combined with the B3LYP functional for the calculation of the magnetic exchange coupling constants (J) between the magnetic centers, the antiferromagnetic (AF) character of these complexes was confirmed, the estimated J values being respectively equal to -24.1 and -7.2 cm-1 for the dioxo and trioxo species. It was found that the magnetic exchange is more sensitive to small variations of the core geometry of the dioxo species in comparison to the trioxo species. Although the robust AF exchange coupling within the UxOx cores is generally maintained when small variations of the UOU angle are applied, a weak ferromagnetic character appears in the dioxo species when this angle is higher than 114°, its value for the actual structure being equal to 105.9°. The electronic factors driving the magnetic coupling are discussed.
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Affiliation(s)
- Billel Teyar
- Faculté des Sciences Exactes , Université des Frères Mentouri , Laboratoire de Physique Mathématique et Subatomique LPMS, 25017 Constantine , Algeria.,Université Ziane Achour de Djelfa , 17000 Djelfa , Algeria
| | - Seddik Boucenina
- Faculté des Sciences Exactes , Université des Frères Mentouri , Laboratoire de Physique Mathématique et Subatomique LPMS, 25017 Constantine , Algeria
| | - Lotfi Belkhiri
- Faculté des Sciences Exactes , Université des Frères Mentouri , Laboratoire de Physique Mathématique et Subatomique LPMS, 25017 Constantine , Algeria
| | | | | | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland
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Bacha RUS, Bi YT, Xuan LC, Pan QJ. Inverse Trans Influence in Low-Valence Actinide-Group 10 Metal Complexes of Phosphinoaryl Oxides: A Theoretical Study via Tuning Metals and Donor Ligands. Inorg Chem 2019; 58:10028-10037. [PMID: 31298034 DOI: 10.1021/acs.inorgchem.9b01193] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The recognition and in-depth understanding of inverse trans influence (ITI) have successfully guided the synthesis of novel actinide complexes and enriched actinide chemistry. Those complexes, however, are mainly limited to the involvement of high-valence actinide and/or metal-ligand multiple bonds. Examples containing both low oxidation state actinide and metal-metal single bond remain rare. Herein, more than 20 actinide-transition metal (An-TM) complexes of phosphinoaryl oxide ligands have been designed in accordance with several experimentally known analogs, by changing the metal atoms (An = Th, Pa, U, Np, and Pu; and TM = Ni, Pd, and Pt), actinide oxidation states (IV and III) and metal-metal axial donor ligands (X = Me3SiO, F, Cl, Br, and I). The relativistic density functional theory study of structural (trans-An-X and cis-An-O toward An-TM), bonding (topological electron/energy density), and electronic properties reveals the order of the ITI stabilizing actinide-metal bond. Computed electron affinity (EA) values, related to the electrochemical reduction, linearly correlate with experimentally measured reduction potentials. Although the same ITI order for the ligand donors was shown as in a previous study, the correlation between electrochemical reduction and the ITI was found to be weak when the actinide atoms were changed. For most complexes, the reduction is primarily of an actinide-based mechanism with minor participation of transition metal and phosphinoaryl oxide, whereas that of thorium-nickel complexes is different.
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Affiliation(s)
- Raza Ullah Shah Bacha
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , China
| | - Yan-Ting Bi
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , China
| | - Li-Chun Xuan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science , Heilongjiang University , Harbin 150080 , China
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Sharma P, Pahls DR, Ramirez BL, Lu CC, Gagliardi L. Multiple Bonds in Uranium-Transition Metal Complexes. Inorg Chem 2019; 58:10139-10147. [PMID: 31329432 DOI: 10.1021/acs.inorgchem.9b01264] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel heterobimetallic complexes featuring a uranium atom paired with a first-row transition metal have been computationally predicted and analyzed using density functional theory and multireference wave function based methods. The synthetically inspired metalloligands U{(iPr2PCH2NAr)3tacn} (1) and U(iPr2PCH2NPh)3 (2) are explored in this study. We report the presence of multiple bonds between uranium and chromium, uranium and manganese, and uranium and iron. The calculations predict a 5-fold bonding between uranium and manganese in the UMn(iPr2PCH2NPh)3 complex, which is unprecedented in the literature.
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14
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Mullane KC, Hrobárik P, Cheisson T, Manor BC, Carroll PJ, Schelter EJ. 13C NMR Shifts as an Indicator of U-C Bond Covalency in Uranium(VI) Acetylide Complexes: An Experimental and Computational Study. Inorg Chem 2019; 58:4152-4163. [PMID: 30848588 DOI: 10.1021/acs.inorgchem.8b03175] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of uranium(VI)-acetylide complexes of the general formula UVI(O)(C≡C-C6H4-R)[N(SiMe3)2]3, with variation of the para substituent (R = NMe2, OMe, Me, Ph, H, Cl) on the aryl(acetylide) ring, was prepared. These compounds were analyzed by 13C NMR spectroscopy, which showed that the acetylide carbon bound to the uranium(VI) center, U- C≡C-Ar, was shifted strongly downfield, with δ(13C) values ranging from 392.1 to 409.7 ppm for Cl and NMe2 substituted complexes, respectively. These extreme high-frequency 13C resonances are attributed to large negative paramagnetic (σpara) and relativistic spin-orbit (σSO) shielding contributions, associated with extensive U(5f) and C(2s) orbital contributions to the U-C bonding in title complexes. The trend in the 13C chemical shift of the terminal acetylide carbon is opposite that observed in the series of parent (aryl)acetylenes, due to shielding effects of the para substituent. The 13C chemical shifts of the acetylide carbon instead correlate with DFT computed U-C bond lengths and corresponding QTAIM delocalization indices or Wiberg bond orders. SQUID magnetic susceptibility measurements were indicative of the Van Vleck temperature independent paramagnetism (TIP) of the uranium(VI) complexes, suggesting a magnetic field-induced mixing of the singlet ground-state (f0) of the U(VI) ion with low-lying (thermally inaccessible) paramagnetic excited states (involved also in the perturbation-theoretical treatment of the unusually large paramagnetic and SO contributions to the 13C shifts). Thus, together with reported data, we demonstrate that the sensitive 13C NMR shifts serve as a direct, simple, and accessible measure of uranium(VI)-carbon bond covalency.
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Affiliation(s)
- Kimberly C Mullane
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Peter Hrobárik
- Department of Inorganic Chemistry, Faculty of Natural Sciences , Comenius University , SK-84215 Bratislava , Slovakia.,Institut für Chemie , Technische Universität Berlin , Straße des 17. Juni 135 , D-10623 Berlin , Germany
| | - Thibault Cheisson
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Brian C Manor
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Patrick J Carroll
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Eric J Schelter
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
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15
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Abstract
Over the past 25 years, magnetic actinide complexes have been the object of considerable attention, not only at the experimental level, but also at the theoretical one. Such systems are of great interest, owing to the well-known larger spin–orbit coupling for actinide ions, and could exhibit slow relaxation of the magnetization, arising from a large anisotropy barrier, and magnetic hysteresis of purely molecular origin below a given blocking temperature. Furthermore, more diffuse 5f orbitals than lanthanide 4f ones (more covalency) could lead to stronger magnetic super-exchange. On the other hand, the extraordinary experimental challenges of actinide complexes chemistry, because of their rarity and toxicity, afford computational chemistry a particularly valuable role. However, for such a purpose, the use of a multiconfigurational post-Hartree-Fock approach is required, but such an approach is computationally demanding for polymetallic systems—notably for actinide ones—and usually simplified models are considered instead of the actual systems. Thus, Density Functional Theory (DFT) appears as an alternative tool to compute magnetic exchange coupling and to explore the electronic structure and magnetic properties of actinide-containing molecules, especially when the considered systems are very large. In this paper, relevant achievements regarding DFT investigations of the magnetic properties of actinide complexes are surveyed, with particular emphasis on some representative examples that illustrate the subject, including actinides in Single Molecular Magnets (SMMs) and systems featuring metal-metal super-exchange coupling interactions. Examples are drawn from studies that are either entirely computational or are combined experimental/computational investigations in which the latter play a significant role.
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16
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Transition-metal-bridged bimetallic clusters with multiple uranium–metal bonds. Nat Chem 2019; 11:248-253. [DOI: 10.1038/s41557-018-0195-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 11/22/2018] [Indexed: 11/08/2022]
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17
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Bi YT, Li L, Guo YR, Pan QJ. Heterobimetallic Uranium–Nickel/Palladium/Platinum Complexes of Phosphinoaryl Oxide Ligands: A Theoretical Probe for Metal–Metal Bonding and Electronic Spectroscopy. Inorg Chem 2019; 58:1290-1300. [DOI: 10.1021/acs.inorgchem.8b02787] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan-Ting Bi
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Li Li
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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18
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Tondreau AM, Duignan TJ, Stein BW, Fleischauer VE, Autschbach J, Batista ER, Boncella JM, Ferrier MG, Kozimor SA, Mocko V, Neidig ML, Cary SK, Yang P. A Pseudotetrahedral Uranium(V) Complex. Inorg Chem 2018; 57:8106-8115. [DOI: 10.1021/acs.inorgchem.7b03139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aaron M. Tondreau
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Thomas J. Duignan
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
| | - Benjamin W. Stein
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Valerie E. Fleischauer
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
| | - Enrique R. Batista
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - James M. Boncella
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Maryline G. Ferrier
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Stosh A. Kozimor
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Veronika Mocko
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Michael L. Neidig
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Samantha K. Cary
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
| | - Ping Yang
- Los Alamos National Laboratory, MS J514, Los Alamos, New Mexico 87545, United States
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19
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20
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Camp C, Toniolo D, Andrez J, Pécaut J, Mazzanti M. A versatile route to homo- and hetero-bimetallic 5f-5f and 3d-5f complexes supported by a redox active ligand framework. Dalton Trans 2018. [PMID: 28650052 DOI: 10.1039/c7dt01993a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The salt-elimination reaction of the complex [Na2U(bis-salophen)] with metal halides provides an entry to the synthesis of well-defined homobimetallic uranium-uranium and rare heterobimetallic uranium-cobalt and uranium-nickel complexes supported by a redox-active dinucleating ligand.
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Affiliation(s)
- Clément Camp
- Univ. Grenoble Alpes, INAC-SyMMES, F-38000 Grenoble, France
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21
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Andreychuk NR, Dickie T, Emslie DJH, Jenkins HA. Thorium(iv) alkyl and allyl complexes of a rigid NON-donor pincer ligand with flanking 1-adamantyl substituents. Dalton Trans 2018. [DOI: 10.1039/c8dt00421h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rigid new pincer pro-ligand, 4,5-bis(1-adamantylamino)-2,7-di-tert-butyl-9,9-dimethylxanthene, is described, with deprotonation and complexation to afford thorium(iv) chloro, alkyl, and allyl derivatives.
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Affiliation(s)
| | - Tara Dickie
- Department of Chemistry & Chemical Biology
- McMaster University
- Hamilton
- Canada
| | - David J. H. Emslie
- Department of Chemistry & Chemical Biology
- McMaster University
- Hamilton
- Canada
| | - Hilary A. Jenkins
- Department of Chemistry & Chemical Biology
- McMaster University
- Hamilton
- Canada
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22
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Abubekerov M, Khan SI, Diaconescu PL. Ferrocene-bis(phosphinimine) Nickel(II) and Palladium(II) Alkyl Complexes: Influence of the Fe–M (M = Ni and Pd) Interaction on Redox Activity and Olefin Coordination. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00626] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Mark Abubekerov
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Saeed I. Khan
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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23
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Brosmer JL, Huang W, Diaconescu PL. Reduction of Diphenylacetylene Mediated by Rare-Earth Ferrocene Diamide Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00541] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jonathan L. Brosmer
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Wenliang Huang
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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24
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Fortier S, Aguilar-Calderón JR, Vlaisavljevich B, Metta-Magaña AJ, Goos AG, Botez CE. An N-Tethered Uranium(III) Arene Complex and the Synthesis of an Unsupported U–Fe Bond. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00429] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Bess Vlaisavljevich
- Department
of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
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25
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Chi C, Wang JQ, Qu H, Li WL, Meng L, Luo M, Li J, Zhou M. Preparation and Characterization of Uranium-Iron Triple-Bonded UFe(CO)3
−
and OUFe(CO)3
−
Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chaoxian Chi
- School of Chemistry, Biological and Materials Sciences; State Key Laboratory Breeding Base of Nuclear Resources and Environment; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Jia-Qi Wang
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Hui Qu
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 China
| | - Wan-Lu Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Luyan Meng
- School of Chemistry, Biological and Materials Sciences; State Key Laboratory Breeding Base of Nuclear Resources and Environment; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Mingbiao Luo
- School of Chemistry, Biological and Materials Sciences; State Key Laboratory Breeding Base of Nuclear Resources and Environment; East China University of Technology; Nanchang Jiangxi Province 330013 China
| | - Jun Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education; Tsinghua University; Beijing 100084 China
| | - Mingfei Zhou
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Fudan University; Shanghai 200433 China
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26
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Chi C, Wang JQ, Qu H, Li WL, Meng L, Luo M, Li J, Zhou M. Preparation and Characterization of Uranium-Iron Triple-Bonded UFe(CO) 3- and OUFe(CO) 3- Complexes. Angew Chem Int Ed Engl 2017; 56:6932-6936. [PMID: 28485836 DOI: 10.1002/anie.201703525] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Indexed: 11/07/2022]
Abstract
We report the preparation of UFe(CO)3- and OUFe(CO)3- complexes using a laser-vaporization supersonic ion source in the gas phase. These compounds were mass-selected and characterized by infrared photodissociation spectroscopy and state-of-the-art quantum chemical studies. There are unprecedented triple bonds between U 6d/5f and Fe 3d orbitals, featuring one covalent σ bond and two Fe-to-U dative π bonds in both complexes. The uranium and iron elements are found to exist in unique formal U(I or III) and Fe(-II) oxidation states, respectively. These findings suggest that there may exist a whole family of stable df-d multiple-bonded f-element-transition-metal compounds that have not been fully recognized to date.
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Affiliation(s)
- Chaoxian Chi
- School of Chemistry, Biological and Materials Sciences, State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Jia-Qi Wang
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Hui Qu
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China
| | - Wan-Lu Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Luyan Meng
- School of Chemistry, Biological and Materials Sciences, State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Mingbiao Luo
- School of Chemistry, Biological and Materials Sciences, State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi Province, 330013, China
| | - Jun Li
- Department of Chemistry & Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Mingfei Zhou
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, China
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27
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Settineri NS, Garner ME, Arnold J. A Thorium Chalcogenolate Series Generated by Atom Insertion into Thorium–Carbon Bonds. J Am Chem Soc 2017; 139:6261-6269. [DOI: 10.1021/jacs.7b02356] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas S. Settineri
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Mary E. Garner
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John Arnold
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
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28
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Ghanbari Niyaky S, Montazerozohori M, Masoudiasl A, White J. New five coordinated supramolecular structured cadmium complex as precursor for CdO nanoparticles: Synthesis, crystal structure, theoretical and 3D Hirshfeld surface analyses. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Affiliation(s)
- Wenliang Huang
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
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30
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Huang W, Diaconescu PL. Reactivity and Properties of Metal Complexes Enabled by Flexible and Redox-Active Ligands with a Ferrocene Backbone. Inorg Chem 2016; 55:10013-10023. [DOI: 10.1021/acs.inorgchem.6b01118] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Wenliang Huang
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E Young Drive East, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, 607 Charles
E Young Drive East, Los Angeles, California 90095, United States
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31
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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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32
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Pedrick EA, Seaman LA, Scott JC, Griego L, Wu G, Hayton TW. Synthesis and Reactivity of a U(IV) Dibenzyne Complex. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00929] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elizabeth A. Pedrick
- Department
of Chemistry and
Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Lani A. Seaman
- Department
of Chemistry and
Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Joshua C. Scott
- Department
of Chemistry and
Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Leonel Griego
- Department
of Chemistry and
Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Guang Wu
- Department
of Chemistry and
Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, 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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33
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Pedrick EA, Wu G, Hayton TW. Oxo Ligand Substitution in a Cationic Uranyl Complex: Synergistic Interaction of an Electrophile and a Reductant. Inorg Chem 2015; 54:7038-44. [PMID: 26136106 DOI: 10.1021/acs.inorgchem.5b01077] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of [U(VI)O2(dppmo)2(OTf)][OTf] (dppmo = Ph2P(O)CH2P(O)Ph2) with 4 equiv of Ph3SiOTf and 2 equiv of Cp2Co generates the U(IV) complex U(IV)(OTf)4(dppmo)2 (1), as a yellow-green crystalline solid in 83% yield, along with Ph3SiOSiPh3 and [Cp2Co][OTf]. This reaction proceeds via a U(IV) silyloxide intermediate, [U(IV)(OSiPh3)(dppmo)2(OTf)2][OTf] (2), which we have isolated and structurally characterized. Similarly, reaction of [U(VI)O2(TPPO)4][OTf]2 (TPPO = Ph3PO) with 6 equiv of Me3SiOTf and 2 equiv of Cp2Co generates the U(IV) complex, [Cp2Co][U(IV)(OTf)5(TPPO)2] (3), as a yellow-green crystalline solid in 76% yield, concomitant with formation of Me3SiOSiMe3, [Ph3POSiMe3][OTf], and [Cp2Co][OTf]. Complexes 1 and 3 have been fully characterized, including analysis by X-ray crystallography. The conversion of [U(VI)O2(dppmo)2(OTf)][OTf] and [U(VI)O2(TPPO)4][OTf]2 to complexes 1 and 3, respectively, represents rare examples of well-defined uranyl oxo ligand substitution.
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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
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, 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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34
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Camp C, Chatelain L, Mougel V, Pécaut J, Mazzanti M. Ferrocene-Based Tetradentate Schiff Bases as Supporting Ligands in Uranium Chemistry. Inorg Chem 2015; 54:5774-83. [DOI: 10.1021/acs.inorgchem.5b00467] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clément Camp
- Univ. Grenoble Alpes, INAC-LCIB,
RICC, and §CEA, INAC-LCIB F-38000 Grenoble, France
| | - Lucile Chatelain
- Univ. Grenoble Alpes, INAC-LCIB,
RICC, and §CEA, INAC-LCIB F-38000 Grenoble, France
- Institut des Sciences et
Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Victor Mougel
- Univ. Grenoble Alpes, INAC-LCIB,
RICC, and §CEA, INAC-LCIB F-38000 Grenoble, France
| | - Jacques Pécaut
- Univ. Grenoble Alpes, INAC-LCIB,
RICC, and §CEA, INAC-LCIB F-38000 Grenoble, France
| | - Marinella Mazzanti
- Institut des Sciences et
Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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35
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Brosmer JL, Diaconescu PL. Yttrium-Alkyl Complexes Supported by a Ferrocene-Based Phosphinimine Ligand. Organometallics 2015. [DOI: 10.1021/om501227t] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jonathan L. Brosmer
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry and
Biochemistry, University of California, Los Angeles, California 90095, United States
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36
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Johnson SA, Bart SC. Achievements in uranium alkyl chemistry: celebrating sixty years of synthetic pursuits. Dalton Trans 2015; 44:7710-26. [PMID: 25283733 DOI: 10.1039/c4dt01621a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This Perspective highlights the synthesis, characterization, and reactivity of significant organouranium complexes with σ-bonded alkyl ligands.
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Affiliation(s)
- Sara A. Johnson
- H.C. Brown Laboratory
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
| | - Suzanne C. Bart
- H.C. Brown Laboratory
- Department of Chemistry
- Purdue University
- West Lafayette
- USA
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37
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CH Bond Activation of Hydrocarbons Mediated by Rare-Earth Metals and Actinides. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2015. [DOI: 10.1016/bs.adomc.2015.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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38
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Smiles DE, Wu G, Hayton TW. Reactivity of [U(CH2SiMe2NSiMe3)(NR2)2] (R = SiMe3) with elemental chalcogens: towards a better understanding of chalcogen atom transfer in the actinides. NEW J CHEM 2015. [DOI: 10.1039/c5nj00739a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Addition of elemental chalcogens to [U(CH2SiMe2NSiMe3)(NR2)2] results in formation of [U(ECH2SiMe2NSiMe3)(NR2)2] (R = SiMe3; E = S, Se, Te) via chalcogen insertion into the U–C bond.
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Affiliation(s)
- Danil E. Smiles
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara
- USA
| | - Guang Wu
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara
- USA
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry
- University of California Santa Barbara
- Santa Barbara
- USA
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39
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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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40
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Smiles DE, Wu G, Hayton TW. Synthesis of Terminal Monochalcogenide and Dichalcogenide Complexes of Uranium Using Polychalcogenides, [En]2– (E = Te, n = 2; E = Se, n = 4), as Chalcogen Atom Transfer Reagents. Inorg Chem 2014; 53:10240-7. [DOI: 10.1021/ic501267f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Danil E. Smiles
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara California 93106, United States
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara California 93106, 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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41
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42
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Matson EM, Franke SM, Anderson NH, Cook TD, Fanwick PE, Bart SC. Radical Reductive Elimination from Tetrabenzyluranium Mediated by an Iminoquinone Ligand. Organometallics 2014. [DOI: 10.1021/om4012104] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ellen M. Matson
- H. C. Brown Laboratory, Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Sebastian M. Franke
- Department of Chemistry and Pharmacy, Inorganic
Chemistry, Friedrich Alexander University, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Nickolas H. Anderson
- H. C. Brown Laboratory, Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Timothy D. Cook
- H. C. Brown Laboratory, Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Phillip E. Fanwick
- H. C. Brown Laboratory, Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Suzanne C. Bart
- H. C. Brown Laboratory, Department
of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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43
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Kiernicki JJ, Newell BS, Matson EM, Anderson NH, Fanwick PE, Shores MP, Bart SC. Multielectron C-O bond activation mediated by a family of reduced uranium complexes. Inorg Chem 2014; 53:3730-41. [PMID: 24611564 DOI: 10.1021/ic500012x] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A family of cyclopentadienyl uranium complexes supported by the redox-active pyridine(diimine) ligand, (Mes)PDI(Me) ((Mes)PDI(Me) = 2,6-((Mes)N═CMe)2-C5H3N, Mes = 2,4,6-trimethylphenyl), has been synthesized. Using either Cp* or Cp(P) (Cp* = 1,2,3,4,5-pentamethylcyclopentadienide, Cp(P) = 1-(7,7-dimethylbenzyl)cyclopentadienide), uranium complexes of the type Cp(X)UI2((Mes)PDI(Me)) (1-Cp(X); X = * or P), Cp(X)UI((Mes)PDI(Me)) (2-Cp(X)), and Cp(X)U((Mes)PDI(Me))(THF)n (3-Cp(X); *, n = 1; P, n = 0) were isolated and characterized. The series was generated via ligand centered reduction events; thus the extent of (Mes)PDI(Me) reduction varies in each case, but the uranium(IV) oxidation state is maintained. Treating 2-Cp(X), which has a doubly reduced (Mes)PDI(Me), with furfural results in radical coupling between the substrate and (Mes)PDI(Me), leading to C-C bond formation to form Cp(X)UI((Mes)PDI(Me)-CHOC4H3O) (4-Cp(X)). Exposure of 3-Cp* and 3-Cp(P), which contain a triply reduced (Mes)PDI(Me) ligand, to benzaldehyde and benzophenone, respectively, results in the corresponding pinacolate complexes Cp*U(O2C2Ph2H2)((Mes)PDI(Me)) (5-Cp*) and Cp(P)U(O2C2Ph4)((Mes)PDI(Me)) (5-Cp(P)). The reducing equivalents required for this coupling are derived solely from the redox-active ligand, rather than the uranium center. Complexes 1-5 have been characterized by (1)H NMR and electronic absorption spectroscopies, and SQUID magnetometry was employed to confirm the mono(anionic) [(Mes)PDI(Me)](-) ligand in 1-Cp(P) and 5-Cp(P). Structural parameters of complexes 1-Cp(P), 2-Cp(X), 4-Cp*, and 5-Cp(X) have been elucidated by X-ray crystallography.
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Affiliation(s)
- John J Kiernicki
- H.C. Brown Laboratory, Department of Chemistry, Purdue University , West Lafayette, Indiana 47906, United States
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44
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Rare Earth Arene-Bridged Complexes Obtained by Reduction of Organometallic Precursors. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-444-63256-2.00266-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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45
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Smiles DE, Wu G, Hayton TW. Synthesis of Uranium–Ligand Multiple Bonds by Cleavage of a Trityl Protecting Group. J Am Chem Soc 2013; 136:96-9. [DOI: 10.1021/ja411423a] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Danil E. Smiles
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - Guang Wu
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - Trevor W. Hayton
- Department of Chemistry and
Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
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46
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Napoline JW, Kraft SJ, Matson EM, Fanwick PE, Bart SC, Thomas CM. Tris(phosphinoamide)-supported uranium-cobalt heterobimetallic complexes featuring Co → U dative interactions. Inorg Chem 2013; 52:12170-7. [PMID: 24111545 DOI: 10.1021/ic402343q] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A series of tris- and tetrakis(phosphinoamide) U/Co complexes has been synthesized. The uranium precursors, (η(2)-Ph2PN(i)Pr)4U (1), (η(2)-(i)Pr2PNMes)4U (2), (η(2)-Ph2PN(i)Pr)3UCl (3), and (η(2)-(i)Pr2PNMes)3UI (4), were easily accessed via addition of the appropriate stoichiometric equivalents of [Ph2PN(i)Pr]K or [(i)Pr2PNMes]K to UCl4 or UI4(dioxane)2. Although the phosphinoamide ligands in 1 and 4 have been shown to coordinate to U in an η(2)-fashion in the solid state, the phosphines are sufficiently labile in solution to coordinate cobalt upon addition of CoI2, generating the heterobimetallic Co/U complexes ICo(Ph2PN(i)Pr)3U[η(2)-Ph2PN(i)Pr] (5), ICo((i)Pr2PNMes)3U[η(2)-((i)Pr2PNMes)] (6), ICo(Ph2PN(i)Pr)3UI (7), and ICo((i)Pr2PNMes)3UI (8). Structural characterization of complexes 5 and 7 reveals reasonably short Co-U interatomic distances, with 7 exhibiting the shortest transition metal-uranium distance ever reported (2.874(3) Å). Complexes 7 and 8 were studied by cyclic voltammetry to examine the influence of the metal-metal interaction on the redox properties compared with both monometallic Co and heterobimetallic Co/Zr complexes. Theoretical studies are used to further elucidate the nature of the transition metal-actinide interaction.
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Affiliation(s)
- J Wesley Napoline
- Department of Chemistry, Brandeis University , 415 South Street, Waltham, Massachusetts 02454, United States
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47
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Abdulmalic MA, Aliabadi A, Petr AK, Krupskaya Y, Kataev V, Büchner B, Hahn T, Kortus J, Yèche N, Klauss HH, Rüffer T. Redox-Active Ferrocene as a Tuning Functionality for Magnetic Superexchange Interactions of Bis(oxamato) Type Complexes. Organometallics 2013. [DOI: 10.1021/om4005115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad A. Abdulmalic
- Technische Universität Chemnitz, Institut
für Chemie, Strasse
der Nationen 62, Chemnitz, D-09107 Germany
| | - Azar Aliabadi
- IFW Dresden, Leibniz Institute for Solid
State and Materials Research, Dresden, D-01171 Germany
| | - Andreas Kurt Petr
- Leibniz Institute for Solid State and Materials Research, Institute for Solid State Research, Helmholtzstrasse 20, Dresden, D-01069 Germany
| | | | | | - Bernd Büchner
- IFW Dresden, P.O. Box 270116, Dresden, D-01171 Germany
| | - Torsten Hahn
- Institut für Theoretische Physik, Technische Universität Bergakademie Freiberg, Freiberg, D-09596 Germany
| | - Jens Kortus
- Institut für Theoretische Physik, Technische Universität Bergakademie Freiberg, Freiberg, D-09596 Germany
| | - Nicolas Yèche
- Institut für Festkörperphysik, TU Dresden, Dresden, D-01062 Germany
| | | | - Tobias Rüffer
- Technische Universität Chemnitz, Institut
für Chemie, Strasse
der Nationen 62, Chemnitz, D-09107 Germany
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48
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Duhović S, Oria JV, Odoh SO, Schreckenbach G, Batista ER, Diaconescu PL. Investigation of the Electronic Structure of Mono(1,1′-Diamidoferrocene) Uranium(IV) Complexes. Organometallics 2013. [DOI: 10.1021/om400521k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Selma Duhović
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Jeremy V. Oria
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Samuel O. Odoh
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Georg Schreckenbach
- Department
of Chemistry, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Enrique R. Batista
- Los Alamos National Laboratory, Los
Alamos, New Mexico 87545, United States
| | - Paula L. Diaconescu
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
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49
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Higgins JA, Cloke FGN, Roe SM. Synthesis and CO2 Insertion Chemistry of Uranium(IV) Mixed-Sandwich Alkyl and Hydride Complexes. Organometallics 2013. [DOI: 10.1021/om400720m] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jessica A. Higgins
- Department
of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, United Kingdom
| | - F. Geoffrey N. Cloke
- Department
of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, United Kingdom
| | - S. Mark Roe
- Department
of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, United Kingdom
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50
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Klapp LRR, Bruhn C, Leibold M, Siemeling U. Ferrocene-Based Bis(guanidines): Superbases for Tridentate N,Fe,N-Coordination. Organometallics 2013. [DOI: 10.1021/om400454v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lutz R. R. Klapp
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Clemens Bruhn
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Michael Leibold
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
| | - Ulrich Siemeling
- Institute of Chemistry, University of Kassel, Heinrich-Plett-Straße
40, 34132 Kassel, Germany
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