1
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Pugliese ER, Benner F, Demir S. From an Isolable Bismolyl Anion to an Yttrium-Bismolyl Complex with μ-Bridging Bismuth(I) Centers and Polar Covalent Y-Bi Bonds. Chemistry 2023; 29:e202302687. [PMID: 37650379 DOI: 10.1002/chem.202302687] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/01/2023]
Abstract
The synthesis and first structural characterization of the [K(18-crown-6)] bismolyl Bitet (C4 Me4 Bi) contact ion pair (1) is presented. Notably, according to Natural Resonance Theory calculations, the Bitet anion of 1 features two types of leading mesomeric structures with localized anionic charge and two lone pairs of electrons at the BiI center, as well as delocalized anionic charge in the π-conjugated C4 Bi ring. The lone pairs at Bi enable a unique bridging coordination mode of the bismolyl ligand, as shown for the first rare earth metal bismolyl complex (Cptet 2 Y)2 (μ-η1 -Bitet )2 (2). The latter results from the salt metathesis reaction of KBitet with Cptet 2 Y(BPh4 ) (Cptet =C5 Me4 H). The Y-Bi bonding interaction in 2 of 16.6 % covalency at yttrium is remarkably large.
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Affiliation(s)
| | - Florian Benner
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Selvan Demir
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
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2
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Jain A, Karmakar H, Roesky PW, Panda TK. Role of Bis(phosphinimino)methanides as Universal Ligands in the Coordination Sphere of Metals across the Periodic Table. Chem Rev 2023. [PMID: 38048165 DOI: 10.1021/acs.chemrev.3c00336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
The coordination chemistry of bis(phosphinimino)methanide ligands is widespread and accompanies a large number of metal ions in the periodic table ranging from lithium to neptunium. This unique class of ligand systems show copious coordination chemistry with the main-group, transition, rare-earth, and actinide metals and are considered to be among the most attractive ligand systems to researchers. The bis(phosphinimino)methanide metal complexes offer an extensive range of applications in various fields and have been demonstrated as one of the universal ligand systems to stabilize the metal ions in not only their usual but also their unusual oxidation states. The main-group and transition metal chemistry using bis(phosphinimino)methanides as ligands was last updated almost a decade ago. In this review, we provide a comprehensive overview of various state-of-the-art bis(phosphinimino)methanide-supported metal complexes by dealing with their synthesis, characterization, reactivity, and catalytic studies which were not included in the last critical reviews.
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Affiliation(s)
- Archana Jain
- Department of Physics and Chemistry, Mahatma Gandhi Institute of Technology (MGIT), Gandipet-500075, Hyderabad, Telangana, India
| | - Himadri Karmakar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502284, Sangareddy, Telangana, India
| | - Peter W Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15 Geb. 30.45, 76131 Karlsruhe, Germany
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502284, Sangareddy, Telangana, India
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3
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Ward RJ, Rungthanaphatsophon P, Huang P, Kelley SP, Walensky JR. Cooperative dihydrogen activation with unsupported uranium-metal bonds and characterization of a terminal U(iv) hydride. Chem Sci 2023; 14:12255-12263. [PMID: 37969582 PMCID: PMC10631237 DOI: 10.1039/d3sc04857h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/13/2023] [Indexed: 11/17/2023] Open
Abstract
Cooperative chemistry between two or more metal centres can show enhanced reactivity compared to the monometallic fragments. Given the paucity of actinide-metal bonds, especially those with group 13, we targeted uranium(iii)-aluminum(i) and -gallium(i) complexes as we envisioned the low-valent oxidation state of both metals would lead to novel, cooperative reactivity. Herein, we report the molecular structure of [(C5Me5)2(MesO)U-E(C5Me5)], E = Al, Ga, Mes = 2,4,6-Me3C6H2, and their reactivity with dihydrogen. The reaction of H2 with the U(iii)-Al(i) complex affords a trihydroaluminate complex, [(C5Me5)2(MesO)U(μ2-(H)3)-Al(C5Me5)] through a formal three-electron metal-based reduction, with concomitant formation of a terminal U(iv) hydride, [(C5Me5)2(MesO)U(H)]. Noteworthy is that neither U(iii) complexes nor [(C5Me5)Al]4 are capable of reducing dihydrogen on their own. To make the terminal hydride in higher yields, the reaction of [(C5Me5)2(MesO)U(THF)] with half an equivalent of diethylzinc generates [(C5Me5)2(MesO)U(CH2CH3)] or treatment of [(C5Me5)2U(i)(Me)] with KOMes forms [(C5Me5)2(MesO)U(CH3)], which followed by hydrogenation with either complex cleanly affords [(C5Me5)2(MesO)U(H)]. All complexes have been characterized by spectroscopic and structural methods and are rare examples of cooperative chemistry in f element chemistry, dihydrogen activation, and stable, terminal ethyl and hydride compounds with an f element.
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Affiliation(s)
- Robert J Ward
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | | | - Patrick Huang
- Department of Chemistry & Biochemistry, California State University East Bay Hayward CA 94542 USA
| | - Steven P Kelley
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
| | - Justin R Walensky
- Department of Chemistry, University of Missouri Columbia MO 65211 USA
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4
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Cemortan V, Simler T, Moutet J, Jaoul A, Clavaguéra C, Nocton G. Structure and bonding patterns in heterometallic organometallics with linear Ln-Pd-Ln motifs. Chem Sci 2023; 14:2676-2685. [PMID: 36908951 PMCID: PMC9993901 DOI: 10.1039/d2sc06933d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023] Open
Abstract
Complexes with short intermetallic distances between transition metal fragments and lanthanide (Ln) fragments are fascinating objects of study, owing to the ambiguity of the nature of the interaction. The addition of the divalent lanthanide fragments Cp*2Ln(OEt2) (Ln = Sm or Yb) to a Pd(ii) complex bearing the deprotonated form of the redox-active, non-symmetrical ligand, 2-pyrimidin-2-yl-1H-benzimidazole (Hbimpm), leads to two isostructural complexes, of the general formula (Cp*2Ln)2[μ-Pd(pyridyl)2] (Ln = Sm (4) and Yb (5)). These adducts have interesting features, such as unique linear Ln-Pd-Ln arrangements and short Ln-Pd distances, which deviate from the expected lanthanide contraction. A mixed computational and spectroscopic study into the formation of these adducts gathers important clues as to their formation. At the same time, thorough characterization of these complexes establishes the +3 oxidation state of all the involved Ln centers. Detailed theoretical computations demonstrate that the apparent deviation from lanthanide contraction is not due to any difference in the intermetallic interaction between the Pd and the Ln, but that the fragments are joined together by electrostatic interactions and dispersive forces. This conclusion contrasts with the findings about a third complex, Cp*2Yb(μ-Me)2PdCp* (6), formed during the reaction, which also possesses a short Yb-Pd distance. Studies at the CASSCF level of theory on this complex show several orbitals containing significant interactions between the 4f and 4d manifolds of the metals. This demonstrates the need for methodical and careful analyses in gauging the intermetallic interaction and the inadequacy of empirical metrics in describing such phenomena.
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Affiliation(s)
- Valeriu Cemortan
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France .,Université Paris-Saclay, CNRS, Institut de Chimie Physique UMR8000 Orsay 91405 France
| | - Thomas Simler
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Jules Moutet
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Arnaud Jaoul
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
| | - Carine Clavaguéra
- Université Paris-Saclay, CNRS, Institut de Chimie Physique UMR8000 Orsay 91405 France
| | - Grégory Nocton
- LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris Route de Saclay Palaiseau 91120 France
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5
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Réant BL, Wooles AJ, Liddle ST, Mills DP. Synthesis and Characterization of Yttrium Methanediide Silanide Complexes. Inorg Chem 2023; 62:137-146. [PMID: 36537859 PMCID: PMC9832533 DOI: 10.1021/acs.inorgchem.2c03053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The salt metathesis reactions of the yttrium methanediide iodide complex [Y(BIPM)(I)(THF)2] (BIPM = {C(PPh2NSiMe3)2}) with the group 1 silanide ligand-transfer reagents MSiR3 (M = Na, R3 = tBu2Me or tBu3; M = K, R3 = (SiMe3)3) gave the yttrium methanediide silanide complexes [Y(BIPM)(SitBu2Me)(THF)] (1), [Y(BIPM)(SitBu3)(THF)] (2), and [Y(BIPM){Si(SiMe3)3}(THF)] (3). Complexes 1-3 provide rare examples of structurally authenticated rare earth metal-silicon bonds and were characterized by single-crystal X-ray diffraction, multinuclear NMR and ATR-IR spectroscopies, and elemental analysis. Density functional theory calculations were performed on 1-3 to probe their electronic structures further, revealing predominantly ionic Y-Si bonding. The computed Y-Si bonds show lower covalency than Y═C bonds, which are in turn best represented by Y+-C- dipolar forms due to the strong σ-donor properties of the silanide ligands investigated; these observations are in accord with experimentally obtained 13C{1H} and 29Si{1H} NMR data for 1-3 and related Y(III) BIPM alkyl complexes in the literature. Preliminary reactivity studies were performed, with complex 1 treated separately with benzophenone, azobenzene, and N,N'-dicyclohexyl-carbodiimide. 29Si{1H} and 31P{1H} NMR spectra of these reaction mixtures indicated that 1,2-migratory insertion of the unsaturated substrate into the Y-Si bond is favored, while for the latter substrate, a [2 + 2]-cycloaddition reaction also occurs at the Y═C bond to afford [Y{C(PPh2NSiMe3)2[C(NCy)2]-κ4C,N,N',N'}{C(NCy)2(SitBu2Me)-κ2N,N'}] (4); these reactivity profiles complement and contrast with those of Y(III) BIPM alkyl complexes.
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6
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Abstract
The number of rare earth (RE) starting materials used in synthesis is staggering, ranging from simple binary metal-halide salts to borohydrides and "designer reagents" such as alkyl and organoaluminate complexes. This review collates the most important starting materials used in RE synthetic chemistry, including essential information on their preparations and uses in modern synthetic methodologies. The review is divided by starting material category and supporting ligands (i.e., metals as synthetic precursors, halides, borohydrides, nitrogen donors, oxygen donors, triflates, and organometallic reagents), and in each section relevant synthetic methodologies and applications are discussed.
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Affiliation(s)
- Fabrizio Ortu
- School of Chemistry, University of Leicester, LE1 7RH Leicester, U.K.
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7
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Hu SX, Zhang P, Zhang P. Electronic Structures and Properties of Bimetallic Plutonium Group 13 Carbonyl Compounds [XPuCO] (X = B, Al, and Ga). Inorg Chem 2021; 60:18794-18803. [PMID: 34841875 DOI: 10.1021/acs.inorgchem.1c02503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bonding features of heterobimetallic complexes containing f-block elements are fundamental content in actinide chemistry. In order to account for the structural periodicity of the X-Pu carbonyls and the formation of chemical bonds between bimetallic plutonium and group 13 carbonyl compounds, we report a comprehensively quantum-chemical study of the electronic structure and properties of XPuCO (X = B, Al, and Ga). With increasing atomic radii of the group 13 elements, the XPuCO structure alternates from cyclic [PuCBO] to linear [AlCPuO] and [GaCPuO]. The bonding analysis indicates that the donor-acceptor model is the best description for bonding interactions of metal and ligands with different donation patterns of CBO → Pu and XC → PuO (X = Al and Ga). The apparent XC ← PuO backdonation increases the C-Pu bond strength markedly and stabilizes the linear geometry of [AlCPuO] and [GaCPuO], while spin-orbit coupling is found to be significant in the stabilization of [PuCBO]. The ground electron configurations and natural orbital analysis indicate that cyclic [PuCBO] and linear [XCPuO] (X = Al and Ga) are considered as complexes of Pu(III) and Pu(V), respectively. The trend presents a valuable insight for the 5f/6d-np bonding interactions, especially for the fundamental understanding of transuranic elements.
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Affiliation(s)
- Shu-Xian Hu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China.,Beijing Computational Science Research Center, Beijing 100193, China
| | - Peng Zhang
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Ping Zhang
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
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8
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Kisu H, Kosai T, Iwamoto T, Yamashita M. Synthesis and Reduction of a Cyclic (Alkyl)(amino)bromoborane to Generate a Thermally Labile Cyclic (Alkyl)(amino)boryl Anion. CHEM LETT 2021. [DOI: 10.1246/cl.200749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Haruki Kisu
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Tomoyuki Kosai
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Takeaki Iwamoto
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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9
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Fayoumi A, Lyubov DM, Tolpygin AO, Shavyrin AS, Cherkasov AV, Ob'edkov AM, Trifonov AA. Sc and Y Heteroalkyl Complexes with a NC
sp3
N Pincer‐Type Diphenylmethanido Ligand: Synthesis, Structure, and Reactivity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ahmad Fayoumi
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Alexey O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Andrey S. Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Anatoly M. Ob'edkov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP‐445 603950 Nizhny Novgorod Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
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10
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Hu SX, Lu E, Liddle ST. Prediction of high bond-order metal-metal multiple-bonds in heterobimetallic 3d-4f/5f complexes [TM-M{N(o-[NCH 2P(CH 3) 2]C 6H 4) 3}] (TM = Cr, Mn, Fe; M = U, Np, Pu, and Nd). Dalton Trans 2019; 48:12867-12879. [PMID: 31389454 DOI: 10.1039/c9dt03086g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite continuing and burgeoning interest in f-block complexes and their bonding chemistry in recent years, investigations of the electronic structures and oxidation states of heterobimetallic complexes, and their bonding features between transition-metals (TMs) and f-elements remain relatively less explored. Here, we report a quantum chemical computational study on the series of TM-actinide and -neodymium complexes [TMAn(L)] and [TMNd(L)] [An = U, Np, Pu; TM = Cr, Mn, Fe; L = {N(o-[NCH2P(CH3)2]C6H4)3}3-] in order to explore periodic trend, generalities and differences in the electronic structure and metal-metal bonding between f-block and d-block elements. Based on the calculations, we find up to five-fold covalent multiple bonding between actinide and transition metal ions, which is in sharp contrast with a single bond between neodymium and transition metals. From a comparative study, a general trend of strength of the An-TM interaction emerges in accordance with the atomic number of the actinide metal, which relates to the nature, energy level, and spatial arrangement of their frontier orbitals. The trend presents a valuable insight for future experimental endeavour searching for isolable complexes with strong and multiple An-TM bonding interactions, especially for the experimentally challenging transuranic elements that require targeted research due to their radioactive nature.
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Affiliation(s)
- Shu-Xian Hu
- Department of Physics, University of Science and Technology Beijing, Beijing 100083, China. and Beijing Computational Science Research Center, Beijing 100193, China
| | - Erli Lu
- School of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Stephen T Liddle
- School of Chemistry and Centre for Radiochemistry Research, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
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11
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Li J, Zhao J, Ferguson MJ, McDonald R, Ma G, Cavell RG. Synthesis, structures and reactivity of bis(iminophosphorano)methanide chelate complexes with transition metal of cobalt, nickel, palladium and iridium. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Fustier-Boutignon M, Nebra N, Mézailles N. Geminal Dianions Stabilized by Main Group Elements. Chem Rev 2019; 119:8555-8700. [PMID: 31194516 DOI: 10.1021/acs.chemrev.8b00802] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This review is dedicated to the chemistry of stable and isolable species that bear two lone pairs at the same C center, i.e., geminal dianions, stabilized by main group elements. Three cases can thus be considered: the geminal-dilithio derivative, for which the two substituents at C are neutral, the yldiide derivatives, for which one substituent is neutral while the other is charged, and finally the geminal bisylides, for which the two substituents are positively charged. In this review, the syntheses and electronic structures of the geminal dianions are presented, followed by the studies dedicated to their reactivity toward organic substrates and finally to their coordination chemistry and applications.
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Affiliation(s)
- Marie Fustier-Boutignon
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
| | - Noel Nebra
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
| | - Nicolas Mézailles
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
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13
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Yan F, Li S, Li L, Zhang W, Cui D, Wang M, Dou Y. Lutetium‐Methanediide‐Alkyl Complexes: Unique Reactivity toward Carbodiimide and Pyridine. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900197] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fangbin Yan
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Lei Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Wanxi Zhang
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Meiyan Wang
- Institute of Theoretical Chemistry Jilin University Changchun 130021 P. R. China
| | - Yanli Dou
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
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14
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Synthesis and structures of bis(iminophosphorano)methanide chelate complexes with zinc and group 13. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.11.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Lu E, Wooles AJ, Gregson M, Cobb PJ, Liddle ST. A Very Short Uranium(IV)-Rhodium(I) Bond with Net Double-Dative Bonding Character. Angew Chem Int Ed Engl 2018; 57:6587-6591. [PMID: 29665209 PMCID: PMC6055764 DOI: 10.1002/anie.201803493] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Indexed: 11/08/2022]
Abstract
Reaction of [U{C(SiMe3 )(PPh2 )}(BIPM)(μ-Cl)Li(TMEDA)(μ-TMEDA)0.5 ]2 (BIPM=C(PPh2 NSiMe3 )2 ; TMEDA=Me2 NCH2 CH2 NMe2 ) with [Rh(μ-Cl)(COD)]2 (COD=cyclooctadiene) affords the heterotrimetallic UIV -RhI2 complex [U(Cl)2 {C(PPh2 NSiMe3 )(PPh[C6 H4 ]NSiMe3 )}{Rh(COD)}{Rh(CH(SiMe3 )(PPh2 )}]. This complex has a very short uranium-rhodium distance, the shortest uranium-rhodium bond on record and the shortest actinide-transition metal bond in terms of formal shortness ratio. Quantum-chemical calculations reveal a remarkable RhI→→ UIV net double dative bond interaction, involving RhI 4dz2 - and 4dxy/xz -type donation into vacant UIV 5f orbitals, resulting in a Wiberg/Nalewajski-Mrozek U-Rh bond order of 1.30/1.44, respectively. Despite being, formally, purely dative, the uranium-rhodium bonding interaction is the most substantial actinide-metal multiple bond yet prepared under conventional experimental conditions, as confirmed by structural, magnetic, and computational analyses.
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Affiliation(s)
- Erli Lu
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Ashley J. Wooles
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Matthew Gregson
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Philip J. Cobb
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Stephen T. Liddle
- School of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
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16
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Lu E, Wooles AJ, Gregson M, Cobb PJ, Liddle ST. A Very Short Uranium(IV)–Rhodium(I) Bond with Net Double‐Dative Bonding Character. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803493] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Erli Lu
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Ashley J. Wooles
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Matthew Gregson
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Philip J. Cobb
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Stephen T. Liddle
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
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17
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Ortu F, Gregson M, Wooles AJ, Mills DP, Liddle ST. Yttrium Methanide and Methanediide Bis(silyl)amide Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00394] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fabrizio Ortu
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Matthew Gregson
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Ashley J. Wooles
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - David P. Mills
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Stephen T. Liddle
- School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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18
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Birchall C, Moxey GJ, McMaster J, Blake AJ, Lewis W, Kays DL. A monomeric, heterobimetallic complex with an unsupported Mg–Fe bond. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.12.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Blake MP, Kaltsoyannis N, Mountford P. Probing the Limits of Alkaline Earth–Transition Metal Bonding: An Experimental and Computational Study. J Am Chem Soc 2015; 137:12352-68. [DOI: 10.1021/jacs.5b07866] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Matthew P. Blake
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Nikolas Kaltsoyannis
- Department
of Chemistry, Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Philip Mountford
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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20
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Cooper OJ, Mills DP, Lewis W, Blake AJ, Liddle ST. Reactivity of the uranium(IV) carbene complex [U(BIPM(TMS))(Cl)(μ-Cl)₂Li(THF)₂] (BIPM(TMS) = {C(PPh₂NSiMe₃)₂}) towards carbonyl and heteroallene substrates: metallo-Wittig, adduct formation, C-F bond activation, and [2 + 2]-cycloaddition reactions. Dalton Trans 2015; 43:14275-83. [PMID: 24798878 DOI: 10.1039/c4dt00909f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The reactivity of the uranium(IV) carbene complex [U(BIPM(TMS))(Cl)(μ-Cl)2Li(THF)2] (1, BIPM(TMS) = {C(PPh2NSiMe3)2}) towards carbonyl and heteroallene substrates is reported. Reaction of 1 with benzophenone proceeds to give the metallo-Wittig terminal alkene product Ph2C=C(PPh2NSiMe3)2 (2); the likely "UOCl2" byproduct could not be isolated. Addition of the bulky ketone PhCOBu(t) to 1 resulted in loss of LiCl, coordination of the ketone, and dimerisation to give [U(BIPM(TMS))(Cl)(μ-Cl){OC(Ph)(Bu(t))}]2 (3). The reaction of 1 with coumarin resulted in ring opening of the cyclic ester and a metallo-Wittig-type reaction to afford [U{BIPM(TMS)[C(O)(CHCHC6H4O-2)]-κ(3)-N,O,O'}(Cl)2(THF)] (4) where the enolate product remains coordinated to uranium. The reaction of PhCOF with 1 resulted in C-F bond activation and oxidation resulting in isolation of [U(O)2(Cl)2(μ-Cl)2{(μ-LiDME)OC(Ph)=C(PPh2NSiMe3)(PPh2NHSiMe3)}2] (5) along with [U(Cl)2(F)2(py)4] (6). The reactions of 1 with tert-butylisocyanate or dicyclohexylcarbodiimide resulted in the isolation of the [2 + 2]-cycloaddition products [U{BIPM(TMS)[C(NBu(t)){OLi(THF)2(μ-Cl)Li(THF)3}]-κ(4)-C,N,N',N''}(Cl)3] (7) and [U{BIPM(TMS)[C(NCy)2]-κ(4)-C,N,N',N''}(Cl)(μ-Cl)2Li(THF)2] (8). Complexes 2-8 have been variously characterised by single crystal X-ray diffraction, multi-nuclear NMR and FTIR spectroscopies, Evans method solution magnetic moments, variable temperature SQUID magnetometry, and elemental analyses.
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Affiliation(s)
- Oliver J Cooper
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
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21
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22
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Butovskii MV, Kempe R. Rare earth–metal bonding in molecular compounds: recent advances, challenges, and perspectives. NEW J CHEM 2015. [DOI: 10.1039/c5nj00802f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In this review, all structurally authenticated molecular compounds with direct bonds between rare earth metals and transition or main group metals are summarized. Novel aspects of their syntheses, properties and reactivities are highlighted.
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Affiliation(s)
| | - Rhett Kempe
- Lehrstuhl Anorganische Chemie II
- Universität Bayreuth
- 95440 Bayreuth
- Germany
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23
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Patel D, Wooles A, Cornish AD, Steven L, Davies ES, Evans DJ, McMaster J, Lewis W, Blake AJ, Liddle ST. Synthesis and characterisation of halide, separated ion pair, and hydride cyclopentadienyl iron bis(diphenylphosphino)ethane derivatives. Dalton Trans 2015; 44:14159-77. [DOI: 10.1039/c5dt00704f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The synthesis and structures of 25 halide, separated ion pair, and hydride cyclopentadienyl iron bis(diphenylphosphino)ethane complexes are described.
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Affiliation(s)
- Dipti Patel
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Ashley Wooles
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Andrew D. Cornish
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Lindsey Steven
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - E. Stephen Davies
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | | | - Jonathan McMaster
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | - William Lewis
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
| | | | - Stephen T. Liddle
- School of Chemistry
- University of Nottingham
- University Park
- Nottingham
- UK
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24
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Li S, Wang M, Liu B, Li L, Cheng J, Wu C, Liu D, Liu J, Cui D. Lutetium-methanediide-alkyl complexes: synthesis and chemistry. Chemistry 2014; 20:15493-8. [PMID: 25284379 DOI: 10.1002/chem.201404809] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Indexed: 11/11/2022]
Abstract
The first four-coordinate methanediide/alkyl lutetium complex (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -CHSiMe3 )(THF)2 (BODDI=ArNC(Me)CHCOCHC(Me)NAr, Ar=2,6-iPr2 C6 H3 ) (1) was synthesized by a thermolysis methodology through α-H abstraction from a Lu-CH2 SiMe3 group. Complex 1 reacted with equimolar 2,6-iPrC6 H3 NH2 and Ph2 C+O to give the corresponding lutetium bridging imido and oxo complexes (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -N-2,6-iPr2 C6 H3 )(THF)2 (2) and (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -O)(THF)2 (3). Treatment of 3 with Ph2 C=O (4 equiv) caused a rare insertion of Lu-μ2 -O bond into theC=O group to afford a diphenylmethyl diolate complex 4. Reaction of 1 with PhN=C=O (2 equiv) led to the migration of SiMe3 to the amido nitrogen atom to give complex (BODDI)Lu2 (CH2 SiMe3 )2 -μ-{PhNC(O)CHC(O)NPh(SiMe3 )-κ(3) N,O,O}(THF) (5). Reaction of 1 withtBuN=C formed an unprecedented product (BODDI)Lu2 (CH2 SiMe3 ){μ2 -[η(2) :η(2) -tBuN=C(=CH2 )SiMe2 CHC=NtBu-κ(1) N]}(tBuN=C)2 (6) through a cascade reaction of N=C bond insertion, sequential cyclometalative γ-(sp(3) )-H activation, C=C bond formation, and rearrangement of the newly formed carbene intermediate. The possible mechanistic pathways between 1, PhN=C=O, and tBuN=C were elucidated by DFT calculations.
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Affiliation(s)
- Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)
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25
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Stable Geminal Dianions as Precursors for Gem-Diorganometallic and Carbene Complexes. TOP ORGANOMETAL CHEM 2014. [DOI: 10.1007/3418_2014_74] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Normand AT, Massard A, Richard P, Canovas C, Balan C, Picquet M, Auffrant A, Le Gendre P. Titanium imido complexes stabilised by bis(iminophosphoranyl)methanide ligands: the influence of N-substituents on solution dynamics and reactivity. Dalton Trans 2014; 43:15098-110. [DOI: 10.1039/c4dt00746h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, structural study and assessment in catalytic hydroamination of Ti imido complexes with bis(iminophosphoranyl)methanide ligands are reported.
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Affiliation(s)
- Adrien T. Normand
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Alexandre Massard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Coline Canovas
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Cédric Balan
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Michel Picquet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
| | - Audrey Auffrant
- Laboratoire de Chimie Moléculaire
- École Polytechnique
- UMR CNRS 9168
- 91128 Palaiseau, France
| | - Pierre Le Gendre
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) – UMR CNRS 6302
- Université de Bourgogne
- UFR Sciences et Techniques
- BP 47870 21078 Dijon, France
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27
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Synthesis and Characterisation of Lanthanide N-Trimethylsilyl and -Mesityl Functionalised Bis(iminophosphorano)methanides and -Methanediides. INORGANICS 2013. [DOI: 10.3390/inorganics1010046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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28
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Cooper OJ, Mills DP, McMaster J, Tuna F, McInnes EJL, Lewis W, Blake AJ, Liddle ST. The Nature of the UC Double Bond: Pushing the Stability of High-Oxidation-State Uranium Carbenes to the Limit. Chemistry 2013; 19:7071-83. [DOI: 10.1002/chem.201300071] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 02/01/2013] [Indexed: 11/09/2022]
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29
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Mills DP, Lewis W, Blake AJ, Liddle ST. Reactivity Studies of a T-Shaped Yttrium Carbene: C–F and C–O Bond Activation and C═C Bond Formation Promoted by [Y(BIPM)(I)(THF)2] (BIPM = C(PPh2NSiMe3)2). Organometallics 2013. [DOI: 10.1021/om301016j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- David P. Mills
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - Stephen T. Liddle
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
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30
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Mills DP, Soutar L, Cooper OJ, Lewis W, Blake AJ, Liddle ST. Reactivity of the Yttrium Alkyl Carbene Complex [Y(BIPM)(CH2C6H5)(THF)] (BIPM = {C(PPh2NSiMe3)2})2–: From Insertions, Substitutions, and Additions to Nontypical Transformations. Organometallics 2012. [DOI: 10.1021/om3010178] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- David P. Mills
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Lyndsay Soutar
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Oliver J. Cooper
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - William Lewis
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Stephen T. Liddle
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
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31
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Oelkers B, Butovskii MV, Kempe R. f-Element-Metal Bonding and the Use of the Bond Polarity To Build Molecular Intermetalloids. Chemistry 2012; 18:13566-79. [DOI: 10.1002/chem.201200783] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Mills DP, Cooper OJ, Tuna F, McInnes EJL, Davies ES, McMaster J, Moro F, Lewis W, Blake AJ, Liddle ST. Synthesis of a uranium(VI)-carbene: reductive formation of uranyl(V)-methanides, oxidative preparation of a [R2C═U═O]2+ analogue of the [O═U═O]2+ uranyl ion (R = Ph2PNSiMe3), and comparison of the nature of U(IV)═C, U(V)═C, and U(VI)═C double bonds. J Am Chem Soc 2012; 134:10047-54. [PMID: 22621395 DOI: 10.1021/ja301333f] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
We report attempts to prepare uranyl(VI)- and uranium(VI) carbenes utilizing deprotonation and oxidation strategies. Treatment of the uranyl(VI)-methanide complex [(BIPMH)UO(2)Cl(THF)] [1, BIPMH = HC(PPh(2)NSiMe(3))(2)] with benzyl-sodium did not afford a uranyl(VI)-carbene via deprotonation. Instead, one-electron reduction and isolation of di- and trinuclear [UO(2)(BIPMH)(μ-Cl)UO(μ-O){BIPMH}] (2) and [UO(μ-O)(BIPMH)(μ(3)-Cl){UO(μ-O)(BIPMH)}(2)] (3), respectively, with concomitant elimination of dibenzyl, was observed. Complexes 2 and 3 represent the first examples of organometallic uranyl(V), and 3 is notable for exhibiting rare cation-cation interactions between uranyl(VI) and uranyl(V) groups. In contrast, two-electron oxidation of the uranium(IV)-carbene [(BIPM)UCl(3)Li(THF)(2)] (4) by 4-morpholine N-oxide afforded the first uranium(VI)-carbene [(BIPM)UOCl(2)] (6). Complex 6 exhibits a trans-CUO linkage that represents a [R(2)C═U═O](2+) analogue of the uranyl ion. Notably, treatment of 4 with other oxidants such as Me(3)NO, C(5)H(5)NO, and TEMPO afforded 1 as the only isolable product. Computational studies of 4, the uranium(V)-carbene [(BIPM)UCl(2)I] (5), and 6 reveal polarized covalent U═C double bonds in each case whose nature is significantly affected by the oxidation state of uranium. Natural Bond Order analyses indicate that upon oxidation from uranium(IV) to (V) to (VI) the uranium contribution to the U═C σ-bond can increase from ca. 18 to 32% and within this component the orbital composition is dominated by 5f character. For the corresponding U═C π-components, the uranium contribution increases from ca. 18 to 26% but then decreases to ca. 24% and is again dominated by 5f contributions. The calculations suggest that as a function of increasing oxidation state of uranium the radial contraction of the valence 5f and 6d orbitals of uranium may outweigh the increased polarizing power of uranium in 6 compared to 5.
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Affiliation(s)
- David P Mills
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
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33
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Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2009. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.01.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Sanden T, Gamer MT, Fagin AA, Chudakova VA, Konchenko SN, Fedushkin IL, Roesky PW. Synthesis of Unsupported Ln–Ga Bonds by Salt Metathesis and Ga–Ga Bond Reduction. Organometallics 2012. [DOI: 10.1021/om300309b] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Tanja Sanden
- Institut für
Anorganische
Chemie and Helmholtz Research School: Energy-Related Catalysis, Karlsruher Institut für Technologie (KIT), Engesserstraße
Geb. 30.45, 76128 Karlsruhe, Germany
| | - Michael T. Gamer
- Institut für
Anorganische
Chemie and Helmholtz Research School: Energy-Related Catalysis, Karlsruher Institut für Technologie (KIT), Engesserstraße
Geb. 30.45, 76128 Karlsruhe, Germany
| | - Anatoly A. Fagin
- G.A. Razuvaev Institute of Organometallic Chemistry of RAS, Tropinina Street
49, 603950 Nizhny Novgorod, Russia
| | - Valentina A. Chudakova
- G.A. Razuvaev Institute of Organometallic Chemistry of RAS, Tropinina Street
49, 603950 Nizhny Novgorod, Russia
| | - Sergey N. Konchenko
- A.V. Nikolaev Institute of Inorganic Chemistry SB RAS, Prospekt Lavrentieva
3, 630090 Novosibirsk, Russia
| | - Igor L. Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry of RAS, Tropinina Street
49, 603950 Nizhny Novgorod, Russia
| | - Peter W. Roesky
- Institut für
Anorganische
Chemie and Helmholtz Research School: Energy-Related Catalysis, Karlsruher Institut für Technologie (KIT), Engesserstraße
Geb. 30.45, 76128 Karlsruhe, Germany
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Dange D, Choong SL, Schenk C, Stasch A, Jones C. Synthesis and characterisation of anionic and neutral gallium(i) N-heterocyclic carbene analogues. Dalton Trans 2012; 41:9304-15. [DOI: 10.1039/c2dt30299c] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Fustier-Boutignon M, Heuclin H, Le Goff XF, Mézailles N. Transmetalation of a nucleophilic carbene fragment: from early to late transition metals. Chem Commun (Camb) 2012; 48:3306-8. [DOI: 10.1039/c2cc17934b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Wooles AJ, Gregson M, Cooper OJ, Middleton-Gear A, Mills DP, Lewis W, Blake AJ, Liddle ST. Group 1 Bis(iminophosphorano)methanides, Part 1: N-Alkyl and Silyl Derivatives of the Sterically Demanding Methanes H2C(PPh2NR)2 (R = Adamantyl and Trimethylsilyl). Organometallics 2011. [DOI: 10.1021/om200553s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ashley J. Wooles
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Matthew Gregson
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Oliver J. Cooper
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Amy Middleton-Gear
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - David P. Mills
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
| | - Stephen T. Liddle
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, U.K
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Gardner BM, Lewis W, Blake AJ, Liddle ST. Halide, amide, cationic, manganese carbonylate, and oxide derivatives of triamidosilylamine uranium complexes. Inorg Chem 2011; 50:9631-41. [PMID: 21879705 DOI: 10.1021/ic201372a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of the complex [U(Tren(TMS))(Cl)(THF)] [1, Tren(TMS) = N(CH(2)CH(2)NSiMe(3))(3)] with Me(3)SiI at room temperature afforded known crystalline [U(Tren(TMS))(I)(THF)] (2), which is reported as a new polymorph. Sublimation of 2 at 160 °C and 10(-6) mmHg afforded the solvent-free dimer complex [{U(Tren(TMS))(μ-I)}(2)] (3), which crystallizes in two polymorphic forms. During routine preparations of 1, an additional complex identified as [U(Cl)(5)(THF)][Li(THF)(4)] (4) was isolated in very low yield due to the presence of a slight excess of [U(Cl)(4)(THF)(3)] in one batch. Reaction of 1 with one equivalent of lithium dicyclohexylamide or bis(trimethylsilyl)amide gave the corresponding amide complexes [U(Tren(TMS))(NR(2))] (5, R = cyclohexyl; 6, R = trimethylsilyl), which both afforded the cationic, separated ion pair complex [U(Tren(TMS))(THF)(2)][BPh(4)] (7) following treatment of the respective amides with Et(3)NH·BPh(4). The analogous reaction of 5 with Et(3)NH·BAr(f)(4) [Ar(f) = C(6)H(3)-3,5-(CF(3))(2)] afforded, following addition of 1 to give a crystallizable compound, the cationic, separated ion pair complex [{U(Tren(TMS))(THF)}(2)(μ-Cl)][BAr(f)(4)] (8). Reaction of 7 with K[Mn(CO)(5)] or 5 or 6 with [HMn(CO)(5)] in THF afforded [U(Tren(TMS))(THF)(μ-OC)Mn(CO)(4)] (9); when these reactions were repeated in the presence of 1,2-dimethoxyethane (DME), the separated ion pair [U(Tren(TMS))(DME)][Mn(CO)(5)] (10) was isolated instead. Reaction of 5 with [HMn(CO)(5)] in toluene afforded [{U(Tren(TMS))(μ-OC)(2)Mn(CO)(3)}(2)] (11). Similarly, reaction of the cyclometalated complex [U{N(CH(2)CH(2)NSiMe(2)Bu(t))(2)(CH(2)CH(2)NSiMeBu(t)CH(2))}] with [HMn(CO)(5)] gave [{U(Tren(DMSB))(μ-OC)(2)Mn(CO)(3)}(2)] [12, Tren(DMSB) = N(CH(2)CH(2)NSiMe(2)Bu(t))(3)]. Attempts to prepare the manganocene derivative [U(Tren(TMS))MnCp(2)] from 7 and K[MnCp(2)] were unsuccessful and resulted in formation of [{U(Tren(TMS))}(2)(μ-O)] (13) and [MnCp(2)]. Complexes 3-13 have been characterized by X-ray crystallography, (1)H NMR spectroscopy, FTIR spectroscopy, Evans method magnetic moment, and CHN microanalyses.
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Affiliation(s)
- Benedict M Gardner
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
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Gardner BM, Patel D, Cornish AD, McMaster J, Lewis W, Blake AJ, Liddle ST. The Nature of Unsupported Uranium-Ruthenium Bonds: A Combined Experimental and Theoretical Study. Chemistry 2011; 17:11266-73. [DOI: 10.1002/chem.201101394] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 07/01/2011] [Indexed: 11/08/2022]
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40
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Vlaisavljevich B, Miró P, Cramer CJ, Gagliardi L, Infante I, Liddle ST. On the Nature of Actinide- and Lanthanide-Metal Bonds in Heterobimetallic Compounds. Chemistry 2011; 17:8424-33. [DOI: 10.1002/chem.201100774] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Indexed: 11/07/2022]
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41
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Fedushkin IL, Lukoyanov AN, Tishkina AN, Maslov MO, Ketkov SY, Hummert M. Compounds with Direct Gallium–Lanthanum and Gallium–Zinc Bonds. Organometallics 2011. [DOI: 10.1021/om200313u] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Igor L. Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Anton N. Lukoyanov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Alexandra N. Tishkina
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Maxim O. Maslov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Sergey Yu. Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Markus Hummert
- Institut für Angewandte Photophysik, Technische Universität Dresden, George-Bähr-Strasse 1, D-01062 Dresden, Germany
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42
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Li S, Cheng J, Chen Y, Nishiura M, Hou Z. Rare Earth Metal Boryl Complexes: Synthesis, Structure, and Insertion of a Carbodiimide and Carbon Monoxide. Angew Chem Int Ed Engl 2011; 50:6360-3. [DOI: 10.1002/anie.201101107] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Indexed: 11/06/2022]
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43
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Li S, Cheng J, Chen Y, Nishiura M, Hou Z. Rare Earth Metal Boryl Complexes: Synthesis, Structure, and Insertion of a Carbodiimide and Carbon Monoxide. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101107] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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Zhang WX, Wang Z, Nishiura M, Xi Z, Hou Z. Ln4(CH2)4 cubane-type rare-earth methylidene complexes consisting of "(C5Me4SiMe3)LnCH2" units (Ln = Tm, Lu). J Am Chem Soc 2011; 133:5712-5. [PMID: 21446751 DOI: 10.1021/ja200540b] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Tetranuclear cubane-type rare-earth methylidene complexes consisting of four "Cp'LnCH(2)" units, [Cp'Ln(μ(3)-CH(2))](4) (4-Ln; Ln = Tm, Lu; Cp' = C(5)Me(4)SiMe(3)), have been obtained for the first time through CH(4) elimination from the well-defined polymethyl complexes [Cp'Ln(μ(2)-CH(3))(2)](3) (2-Ln) or mixed methyl/methylidene precursors such as [Cp'(3)Ln(3)(μ(2)-Me)(3)(μ(3)-Me)(μ(3)-CH(2))] (3-Ln). The reaction of the methylidene complex 4-Lu with benzophenone leads to C═O bond cleavage and C═C bond formation to give the cubane-type oxo complex [Cp'Lu(μ(3)-O)](4) and CH(2)═CPh(2), while the methyl/methylidene complex 3-Tm undergoes sequential methylidene addition to the C═O group and ortho C-H activation of the two phenyl groups of benzophenone to afford the bis(benzo-1,2-diyl)ethoxy-chelated trinuclear complex [Cp'(3)Tm(3)(μ(2)-Me)(3){(C(6)H(4))(2)C(O)Me}] (6-Tm).
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Affiliation(s)
- Wen-Xiong Zhang
- Organometallic Chemistry Laboratory and Advanced Catalyst Research Team, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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45
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Saleh LMA, Birjkumar KH, Protchenko AV, Schwarz AD, Aldridge S, Jones C, Kaltsoyannis N, Mountford P. Group 3 and Lanthanide Boryl Compounds: Syntheses, Structures, and Bonding Analyses of Sc−B, Y−B, and Lu−B σ-Coordinated NHC Analogues. J Am Chem Soc 2011; 133:3836-9. [DOI: 10.1021/ja2007092] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liban M. A. Saleh
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Krishna Hassomal Birjkumar
- Department of Chemistry, University College London, Christopher Ingold Laboratories, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Andrey V. Protchenko
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Simon Aldridge
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Cameron Jones
- School of Chemistry, P.O. Box 23, Monash University, VIC 3800, Australia
| | - Nikolas Kaltsoyannis
- Department of Chemistry, University College London, Christopher Ingold Laboratories, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Philip Mountford
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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46
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Liddle ST, Mills DP, Wooles AJ. Early metal bis(phosphorus-stabilised)carbene chemistry. Chem Soc Rev 2011; 40:2164-76. [PMID: 21321726 DOI: 10.1039/c0cs00135j] [Citation(s) in RCA: 135] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since the discovery of covalently-bound mid- and late-transition metal carbenes there has been a spectacular explosion of interest in their chemistry, but their early metal counterparts have lagged behind. In recent years, bis(phosphorus-stabilised)carbenes have emerged as valuable ligands for metals across the periodic table, and their use has in particular greatly expanded covalently-bound early metal carbene chemistry. In this tutorial review we introduce the reader to bis(phosphorus-stabilised)carbenes, and cover general preparative methods, structure and bonding features, and emerging reactivity studies of early metal derivatives (groups 1-4 and the f-elements).
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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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47
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Cooper OJ, Mills DP, McMaster J, Moro F, Davies ES, Lewis W, Blake AJ, Liddle ST. Uranium-carbon multiple bonding: facile access to the pentavalent uranium carbene [U{C(PPh2NSiMe3)2}(Cl)2(I)] and comparison of U(V)=C and U(IV)=C bonds. Angew Chem Int Ed Engl 2011; 50:2383-6. [PMID: 21351360 DOI: 10.1002/anie.201007675] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 01/06/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Oliver J Cooper
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD UK
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48
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Cooper OJ, Mills DP, McMaster J, Moro F, Davies ES, Lewis W, Blake AJ, Liddle ST. Uranium-Carbon Multiple Bonding: Facile Access to the Pentavalent Uranium Carbene [U{C(PPh2NSiMe3)2}(Cl)2(I)] and Comparison of UVC and UIVC Bonds. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007675] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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49
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Mills DP, Soutar L, Lewis W, Blake AJ, Liddle ST. Regioselective C-H activation and sequential C-C and C-O bond formation reactions of aryl ketones promoted by an yttrium carbene. J Am Chem Soc 2011; 132:14379-81. [PMID: 20873758 DOI: 10.1021/ja107958u] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Rare earth carbenes exclusively exhibit Wittig-type reactivity with carbonyl compounds to afford alkenes. Here, we report that yttrium carbenes can effect regioselective ortho-C-H activation and sequential C-C and C-O bond formation reactions of aryl ketones to give iso-benzofurans and hydroxymethylbenzophenones. With MeCOPh, cyclotetramerization occurs giving a substituted cyclohexene. This demonstrates new rare earth carbene reactivity which complements existing Wittig-type reactivity.
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Affiliation(s)
- David P Mills
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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50
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Krinsky JL, Minasian SG, Arnold J. Covalent Lanthanide Chemistry Near the Limit of Weak Bonding: Observation of (CpSiMe3)3Ce−ECp* and a Comprehensive Density Functional Theory Analysis of Cp3Ln−ECp (E = Al, Ga). Inorg Chem 2010; 50:345-57. [DOI: 10.1021/ic102028d] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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