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Yi C, Wu L, Chen L, Ren W. Reactivity Studies on Lanthanum and Cerium Hydrido Metallocenes. Dalton Trans 2022; 51:9241-9246. [DOI: 10.1039/d2dt00996j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The alkyl complexes [5-1,3-(Me3C)2C5H3]2Ln(CH2C6H4-o-NMe2) (Ln = La 1, Ce 2) react with 9-borabicyclo[3.3.1]nonane (9-BBN) in THF to afford the lanthanum boroxide complex [5-1,3-(Me3C)2C5H3]2La(µ-OBC8H14)(THF) (3) and cerium boroxide complex [5-1,3-(Me3C)2C5H3]2Ce(µ-OBC8H14)(THF) (4)....
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2
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Xie SL, Sanz CA, Fryzuk MD. Heterobimetallic complexes stabilized by the P 2N 2 macrocyclic ligand system: synthesis and reactivity of a rhodium-copper system that activates molecular hydrogen. Dalton Trans 2021; 50:17140-17149. [PMID: 34779808 DOI: 10.1039/d1dt03129e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and reactivity of the bimetallic rhodium-copper complex, Rh(COE)[P2N2]Cu, which is stabilized by the P2N2 macrocycle, is reported. In the solid state, the rhodium and copper centers are on opposite sides of the macrocyclic ring with the Cu(I) in a linear environment and the Rh(I) in a square planar array. However, in solution a very symmetrical structure is suggested on the basis of the 1H NMR data, which is consistent with at least two separate fluxional processes, rotation of the cyclooctene unit and movement of the Rh(I) unit between the two amido donors. Addition of H2 to Rh(COE)[P2N2]Cu results in the formation of ([P2N2H]RhH(μ-H)2Cu)2via hydrogenation of the coordinated cyclooctene unit, oxidative addition of H2 to the rhodium center and hydrogenolysis of the copper amido unit. Monitoring the reaction of H2 by NMR spectroscopy indicated the formation of a number of intermediates which suggests hydrogenolysis of the copper amido linkage occurs to generate CuH in some form, along with Rh(COE)[P2N2H], which is converted to Rh(H)2[P2N2H] by hydrogenation of the cyclooctene, which then recombines with the CuH present to generate the final product. Deuteration studies indicate that there is considerable H/D scrambling in the cyclooctane produced that we attribute to reversible beta-elimination, migratory insertion steps.
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Affiliation(s)
- Siyuan L Xie
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada, V6 T 1Z1.
| | - Corey A Sanz
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada, V6 T 1Z1.
| | - Michael D Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada, V6 T 1Z1.
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3
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Richardson GM, Douair I, Cameron SA, Maron L, Anker MD. Ytterbium (II) Hydride as a Powerful Multielectron Reductant. Chemistry 2021; 27:13144-13148. [PMID: 34258796 DOI: 10.1002/chem.202102428] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Indexed: 11/11/2022]
Abstract
A dimeric β-diketiminato ytterbium(II) hydride affects both the two-electron aromatization of 1,3,5,7-cyclooctatetraene (COT) and the more challenging two-electron reduction of polyaromatic hydrocarbons, including naphthalene (E0 =-2.60 V). Confirmed by Density Functional Theory calculations, these reactions proceed via consecutive polarized Yb-H/C=C insertion and deprotonation steps to provide the respective ytterbium (II) inverse sandwich complexes and hydrogen gas. These observations highlight the ability of a simple ytterbium(II) hydride to act as a powerful two-electron reductant at room temperature without the necessity of an external electron to initiate the reaction and avoiding radicaloid intermediates.
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Affiliation(s)
- Georgia M Richardson
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Iskander Douair
- LPCNO, CNRS ( INSA, Université Paul Sabatier, Université de Toulouse et CNRS, 135 Avenue de Rangueil, 31077, Toulouse, France
| | - Scott A Cameron
- Ferrier Research Institute, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand
| | - Laurent Maron
- LPCNO, CNRS ( INSA, Université Paul Sabatier, Université de Toulouse et CNRS, 135 Avenue de Rangueil, 31077, Toulouse, France
| | - Mathew D Anker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
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4
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Anga S, Acharya J, Chandrasekhar V. An Unsymmetric Imino-Phosphanamidinate Ligand and its Y(III) Complex: Synthesis, Characterization, and Catalytic Hydroboration of Carbonyl Compounds. J Org Chem 2021; 86:2224-2234. [PMID: 33290079 DOI: 10.1021/acs.joc.0c02383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An imino-phosphanamide ligand, [NHIiPr2Me2P(Ph)NH-2,6-iPr2C6H3] (LH), containing two different N-substituents was prepared by the direct reaction of the lithium salt of N-heterocyclic imine (NHI) with phenylchloro-2,6-diisopropylphenyl phosphanamine, PhP(Cl)NH-2,6-iPr2-C6H3. Reaction of LH with Y(N(SiMe3)2)3 afforded the heteroleptic complex, [{L}Y(N(SiMe3)2)2] (1), by elimination of HN(SiMe3)2. Compound 1 was characterized by multinuclear NMR and X-ray crystallography. In the complex, the Y(III) center was found to be tetracoordinate in a distorted tetrahedral geometry. The ligand, imino-phosphanamidinate, [L]-, functions in a chelating manner, and its coordination to Y(III) results in a distorted 4-membered YPN2 ring. As a proof of principle of its activity, 1 was used as a precatalyst for the hydroboration of various aldehydes and ketones using HBpin as the hydrogen source. The hydroboration reaction was rapid and clean even with low catalyst loadings (0.01-0.1 mol %). In addition, a very good functional group tolerance was observed in these reactions.
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Affiliation(s)
- Srinivas Anga
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India
| | - Joydev Acharya
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
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5
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Sun X, Su W, Shi K, Xie Z, Zhu C. Triple Frustrated Lewis Pair-Type Reactivity on a Single Rare-Earth Metal Center. Chemistry 2020; 26:5354-5359. [PMID: 31950533 DOI: 10.1002/chem.201905629] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Indexed: 12/28/2022]
Abstract
Rare-earth metal cations have been used rarely as Lewis-acidic components in the chemistry of frustrated Lewis pairs (FLPs). Herein, we report the first cerium/phosphorus system (2) employing a heptadentate N4 P3 ligand, which exhibits triple FLP-type reactivity towards a series of organic substrates, including isocyanates, isothiocyanates, diazomethane, and azides on a single rare-earth Lewis acidic Ce center. This result shows that the Ce center and three P atoms in 2 could simultaneously activate three equivalents of small molecules under mild conditions. This study broadens the diversity of FLPs and demonstrates that rare earth based FLP exhibit unique properties compared with other FLP systems.
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Affiliation(s)
- Xiong Sun
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Wei Su
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Kaiying Shi
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Zhuoyi Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Congqing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China
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6
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Palumbo CT, Darago LE, Dumas MT, Ziller JW, Long JR, Evans WJ. Structure, Magnetism, and Multi-electron Reduction Reactivity of the Inverse Sandwich Reduced Arene La2+ Complex [{[C5H3(SiMe3)2]2La}2(μ-η6:η6-C6H6)]1–. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00523] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chad T. Palumbo
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Lucy E. Darago
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Megan T. Dumas
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Jeffrey R. Long
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697, United States
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Kelly RP, Toniolo D, Tirani FF, Maron L, Mazzanti M. A tetranuclear samarium(ii) inverse sandwich from direct reduction of toluene by a samarium(ii) siloxide. Chem Commun (Camb) 2018; 54:10268-10271. [DOI: 10.1039/c8cc04169e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The dinuclear SmII complex [Sm2L4(dme)] (L = OSi(OtBu)3) reacts slowly with toluene, resulting in the isolation of the triple decker arene-bridged SmII complex [{Sm2L3}2(μ-η6:η6-C7H8)] in 44% yield. This reactivity provides the first example of an unambiguous arene reduction by an isolated SmII species.
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Affiliation(s)
- Rory P. Kelly
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Davide Toniolo
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Farzaneh Fadaei Tirani
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Laurent Maron
- Université de Toulouse et CNRS INSA
- UPS
- CNRS
- UMR 5215
- LPCNO
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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Gajecki L, Berg DJ, Hoenisch J, Oliver AG. Variable coordination of carbazolyl-bis(tetrazole) ligands in lanthanide chemistry. Dalton Trans 2018; 47:15487-15496. [DOI: 10.1039/c8dt02757a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lanthanide complexes of 1,8-bis(2′-isopropyltetrazo-5′-yl)-3,6-di-tert-butylcarbazolide adopt geometries that include planar, buckled and tetrazolyl-bridged tridentate, as well as bidentate, bonding modes.
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Affiliation(s)
- Leah Gajecki
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - David J. Berg
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - Josh Hoenisch
- Department of Chemistry
- University of Victoria
- Victoria BC V8W 2Y2
- Canada
| | - Allen G. Oliver
- Department of Chemistry & Biochemistry
- University of Notre Dame
- Notre Dame
- USA
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9
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Mezzetti A. Iron Complexes with Chiral N/P Macrocycles as Catalysts for Asymmetric Transfer Hydrogenation. Isr J Chem 2017. [DOI: 10.1002/ijch.201700035] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Antonio Mezzetti
- Department of Chemistry and Applied Biosciences; HCI H 235; ETH Zürich; 8093 Zürich Switzerland
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10
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Carravetta M, Concistre M, Levason W, Reid G, Zhang W. Rare Neutral Diphosphine Complexes of Scandium(III) and Yttrium(III) Halides. Inorg Chem 2016; 55:12890-12896. [DOI: 10.1021/acs.inorgchem.6b02268] [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)
- Marina Carravetta
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Maria Concistre
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - William Levason
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Gillian Reid
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Wenjian Zhang
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
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11
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Shibata Y, Nagae H, Sumiya S, Rochat R, Tsurugi H, Mashima K. 2,2'-Bipyridyl formation from 2-arylpyridines through bimetallic diyttrium intermediate. Chem Sci 2015; 6:5394-5399. [PMID: 28757942 PMCID: PMC5510530 DOI: 10.1039/c5sc01599e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 07/17/2015] [Indexed: 11/21/2022] Open
Abstract
An alkylyttrium complex supported by an N,N'-bis(2,6-diisopropylphenyl)ethylenediamido ligand, (ArNCH2CH2NAr)Y(CH2SiMe3)(THF)2 (1, Ar = 2,6- i Pr2C6H3), activated an ortho-phenyl C-H bond of 2-phenylpyridine (2a) to form a (2-pyridylphenyl)yttrium complex (3a) containing a five-membered metallacycle. Subsequently, a unique C(sp2)-C(sp2) coupling of 2-phenylpyridine proceeded through a bimetallic yttrium intermediate, derived from an intramolecular shift of the yttrium center to an ortho-position of the pyridine ring in 3a, to yield a bimetallic yttrium complex (4a) bridged by two-electron reduced 6,6'-diphenyl-2,2'-bipyridyl. Aryl substituents at the ortho-position of the pyridine ring were key in order to destabilize the μ,κ2-(C,N)-pyridyldiyttrium intermediate prior to the C(sp2)-C(sp2) bond formation.
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Affiliation(s)
- Yu Shibata
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
| | - Haruki Nagae
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
| | - Shiki Sumiya
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
| | - Raphaël Rochat
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
| | - Hayato Tsurugi
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
| | - Kazushi Mashima
- Department of Chemistry , Graduate School of Engineering Science , Osaka University , Toyonaka , Osaka 560-8531 , Japan . ;
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12
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Kotyk CM, Fieser ME, Palumbo CT, Ziller JW, Darago LE, Long JR, Furche F, Evans WJ. Isolation of +2 rare earth metal ions with three anionic carbocyclic rings: bimetallic bis(cyclopentadienyl) reduced arene complexes of La 2+ and Ce 2+ are four electron reductants. Chem Sci 2015; 6:7267-7273. [PMID: 29861961 PMCID: PMC5947538 DOI: 10.1039/c5sc02486b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/18/2015] [Indexed: 12/30/2022] Open
Abstract
A new option for stabilizing unusual Ln2+ ions has been identified in the reaction of Cp'3Ln, 1-Ln (Ln = La, Ce; Cp' = C5H4SiMe3), with potassium graphite (KC8) in benzene in the presence of 2.2.2-cryptand. This generates [K(2.2.2-cryptand)]2[(Cp'2Ln)2(μ-η6:η6-C6H6)], 2-Ln, complexes that contain La and Ce in the formal +2 oxidation state. These complexes expand the range of coordination environments known for these ions beyond the previously established examples, (Cp''3Ln)1- and (Cp'3Ln)1- (Cp'' = C5H3(SiMe3)2-1,3), and generalize the viability of using three anionic carbocyclic rings to stabilize highly reactive Ln2+ ions. In 2-Ln, a non-planar bridging (C6H6)2- ligand shared between two metals takes the place of a cyclopentadienyl ligand in (Cp'3Ln)1-. The intensely colored (ε = ∼8000 M-1 cm-1) 2-Ln complexes react as four electron reductants with two equiv. of naphthalene to produce two equiv. of the reduced naphthalenide complex, [K(2.2.2-cryptand)][Cp'2Ln(η4-C10H8)].
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Affiliation(s)
- Christopher M Kotyk
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
| | - Megan E Fieser
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
| | - Chad T Palumbo
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
| | - Joseph W Ziller
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
| | - Lucy E Darago
- Department of Chemistry , University of California , Berkeley , California 94720 , USA .
| | - Jeffrey R Long
- Department of Chemistry , University of California , Berkeley , California 94720 , USA .
| | - Filipp Furche
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
| | - William J Evans
- Department of Chemistry , University of California , Irvine , California 92697 , USA . ; ; ; Tel: +1-949-824-5174
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13
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Levine DS, Tilley TD, Andersen RA. C–H Bond Activations by Monoanionic, PNP-Supported Scandium Dialkyl Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00213] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel S. Levine
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - T. Don Tilley
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - Richard A. Andersen
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
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14
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Kotyk CM, MacDonald MR, Ziller JW, Evans WJ. Reactivity of the Ln2+ Complexes [K(2.2.2-cryptand)][(C5H4SiMe3)3Ln]: Reduction of Naphthalene and Biphenyl. Organometallics 2015. [DOI: 10.1021/om501063h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Christopher M. Kotyk
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Matthew R. MacDonald
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
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15
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Bigler R, Mezzetti A. Isonitrile Iron(II) Complexes with Chiral N2P2 Macrocycles in the Enantioselective Transfer Hydrogenation of Ketones. Org Lett 2014; 16:6460-3. [DOI: 10.1021/ol503295c] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Raphael Bigler
- Department of Chemistry and
Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and
Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
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16
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Bigler R, Otth E, Mezzetti A. Chiral Macrocyclic N2P2 Ligands and Iron(II): A Marriage of Interest. Organometallics 2014. [DOI: 10.1021/om5005989] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Raphael Bigler
- Department of Chemistry and
Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Elisabeth Otth
- Department of Chemistry and
Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and
Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
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17
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Wang K, Luo G, Hong J, Zhou X, Weng L, Luo Y, Zhang L. Homometallic Rare-Earth Metal Phosphinidene Clusters: Synthesis and Reactivity. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307422] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Wang K, Luo G, Hong J, Zhou X, Weng L, Luo Y, Zhang L. Homometallic Rare-Earth Metal Phosphinidene Clusters: Synthesis and Reactivity. Angew Chem Int Ed Engl 2013; 53:1053-6. [DOI: 10.1002/anie.201307422] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/15/2013] [Indexed: 11/09/2022]
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19
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Halcovitch NR, Fryzuk MD. Synthesis of a Dinuclear Ferrocene-Linked Bis(phosphinoamide)scandium Hydride Complex. Organometallics 2013. [DOI: 10.1021/om400353h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Nathan R. Halcovitch
- Department of Chemistry, The University of British Columbia,
2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia,
2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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20
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Patel D, Tuna F, McInnes EJL, McMaster J, Lewis W, Blake AJ, Liddle ST. A triamido-uranium(v) inverse-sandwich 10π-toluene tetraanion arene complex. Dalton Trans 2013; 42:5224-7. [DOI: 10.1039/c3dt50255d] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Chapurina Y, Guillot R, Lyubov D, Trifonov A, Hannedouche J, Schulz E. LiCl-effect on asymmetric intramolecular hydroamination catalyzed by binaphthylamido yttrium complexes. Dalton Trans 2013; 42:507-20. [DOI: 10.1039/c2dt31265d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Henning J, Wesemann L. Side-On Coordinated Distannene: An Unprecedented Nickel(0) Complex. Angew Chem Int Ed Engl 2012; 51:12869-73. [DOI: 10.1002/anie.201206767] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 10/09/2012] [Indexed: 11/10/2022]
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Henning J, Wesemann L. η2-Koordinierendes Distannen - ein neuartiger Nickel(0)-Komplex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201206767] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Henning J, Schubert H, Eichele K, Winter F, Pöttgen R, Mayer HA, Wesemann L. Synthesis and Characterization of N-[2-P(i-Pr)2-4-methylphenyl]2– (PNP) Pincer Tin(IV) and Tin(II) Complexes. Inorg Chem 2012; 51:5787-94. [DOI: 10.1021/ic300324s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jens Henning
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Hartmut Schubert
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Klaus Eichele
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Florian Winter
- Institut für Anorganische
und Analytische Chemie, Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Rainer Pöttgen
- Institut für Anorganische
und Analytische Chemie, Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany
| | - Hermann A. Mayer
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Lars Wesemann
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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Halcovitch NR, Fryzuk MD. Synthesis and characterization of organo-scandium and yttrium complexes stabilized by phosphinoamide ligands. Dalton Trans 2012; 41:1524-8. [DOI: 10.1039/c1dt11501d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhu T, Wambach TC, Fryzuk MD. New Cyclopentenyl-Linked [NPN] Ligands and Their Coordination Chemistry with Zirconium: Synthesis of a Dinuclear Side-On-Bound Dinitrogen Complex. Inorg Chem 2011; 50:11212-21. [DOI: 10.1021/ic201762r] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting Zhu
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Truman C. Wambach
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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Cruz CA, Chu T, Emslie DJ, Jenkins HA, Harrington LE, Britten JF. Divergent reactivity of [(κ3-L)ThCl2(dme)] with Grignard reagents: Alkylation, ancillary ligand transfer to magnesium, and halide exchange caught in the act. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.08.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Trambitas AG, Panda TK, Jenter J, Roesky PW, Daniliuc C, Hrib CG, Jones PG, Tamm M. Rare-Earth Metal Alkyl, Amido, and Cyclopentadienyl Complexes Supported by Imidazolin-2-iminato Ligands: Synthesis, Structural Characterization, and Catalytic Application. Inorg Chem 2010; 49:2435-46. [DOI: 10.1021/ic9024052] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexandra G. Trambitas
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Tarun K. Panda
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Jelena Jenter
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76128 Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76128 Karlsruhe, Germany
| | - Constantin Daniliuc
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Cristian G. Hrib
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, 38106 Braunschweig, Germany
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30
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Luconi L, Lyubov DM, Bianchini C, Rossin A, Faggi C, Fukin GK, Cherkasov AV, Shavyrin AS, Trifonov AA, Giambastiani G. Yttrium‐Amidopyridinate Complexes: Synthesis and Characterization of Yttrium‐Alkyl and Yttrium‐Hydrido Derivatives. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200900934] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lapo Luconi
- Istituto di Chimica dei Composti Organometallici (ICCOM–CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy, Fax: +39‐055‐5225203
| | - Dmitrii M. Lyubov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP‐445, 603950 Nizhny Novgorod, Russia
| | - Claudio Bianchini
- Istituto di Chimica dei Composti Organometallici (ICCOM–CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy, Fax: +39‐055‐5225203
| | - Andrea Rossin
- Istituto di Chimica dei Composti Organometallici (ICCOM–CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy, Fax: +39‐055‐5225203
| | - Cristina Faggi
- Dipartimento di Chimica Organica “U. Schiff”, Universitàdegli Studi di Firenze, via della Lastruccia 13, 50019 Sesto Fiorentino (Firenze), Italy
| | - Georgii K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP‐445, 603950 Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP‐445, 603950 Nizhny Novgorod, Russia
| | - Andrei S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP‐445, 603950 Nizhny Novgorod, Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP‐445, 603950 Nizhny Novgorod, Russia
| | - Giuliano Giambastiani
- Istituto di Chimica dei Composti Organometallici (ICCOM–CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino (Firenze), Italy, Fax: +39‐055‐5225203
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31
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Wallasch MW, Weismann D, Riehn C, Ambrus S, Wolmershäuser G, Lagutschenkov A, Niedner-Schatteburg G, Sitzmann H. Reactive Sigma-Aryliron Complexes or Iron-Promoted Coupling of Two Phenyl Anions to One Bis(cyclohexadienylidene) Ligand: Synthesis, Structure, Mass Spectrometry, and DFT Calculations. Organometallics 2010. [DOI: 10.1021/om900870j] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark W. Wallasch
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | - Daniel Weismann
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | - Christoph Riehn
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | - Stefan Ambrus
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | - Gotthelf Wolmershäuser
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | - Anita Lagutschenkov
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
| | | | - Helmut Sitzmann
- FB Chemie der TU Kaiserslautern, Erwin-Schrödinger-Strasse 54, D-67663 Kaiserslautern, Germany
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32
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Mezzetti A. Ruthenium complexes with chiral tetradentate PNNP ligands: Asymmetric catalysis from the viewpoint of inorganic chemistry. Dalton Trans 2010; 39:7851-69. [DOI: 10.1039/c0dt00119h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Kenward AL, Piers WE, Parvez M. Low-Coordinate Organoyttrium Complexes Supported by β-Diketiminato Ligands. Organometallics 2009. [DOI: 10.1021/om900082d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alyson L. Kenward
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Warren E. Piers
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Masood Parvez
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
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Ranocchiari M, Mezzetti A. PNNP Macrocycles: A New Class of Ligands for Asymmetric Catalysis. Organometallics 2009. [DOI: 10.1021/om900028w] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marco Ranocchiari
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Antonio Mezzetti
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
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Lyubov DM, Fukin GK, Cherkasov AV, Shavyrin AS, Trifonov AA, Luconi L, Bianchini C, Meli A, Giambastiani G. Selective σ-Bond Metathesis in Alkyl−Aryl and Alkyl−Benzyl Yttrium Complexes. New Aryl− and Benzyl−Hydrido Yttrium Derivatives Supported by Amidopyridinate Ligands. Organometallics 2009. [DOI: 10.1021/om801044h] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D. M. Lyubov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - G. K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - A. V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - Andrei S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - A. A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - L. Luconi
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - C. Bianchini
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - A. Meli
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
| | - G. Giambastiani
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia, and Istituto di Chimica dei Composti Organometallici (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
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Aillaud I, Lyubov D, Collin J, Guillot R, Hannedouche J, Schulz E, Trifonov A. Chiral Amido Alkyl Rare Earth Complexes: A New Family of Asymmetric Intramolecular Hydroamination Catalysts. Organometallics 2008. [DOI: 10.1021/om800618k] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isabelle Aillaud
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Dmitrii Lyubov
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Jacqueline Collin
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Régis Guillot
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Jérôme Hannedouche
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Emmanuelle Schulz
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
| | - Alexander Trifonov
- Equipe de Catalyse Moléculaire, ICMMO, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France, ICMMO, Université Paris-Sud 11, 91405 Orsay, France, and G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinia 49, 603600 Nizhny Novgorod GSP-445, Russian Federation
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Trifonov AA. Non-metallocene rare-earth organometallic derivatives: synthesis, structure and application in the catalysis of transformations of unsaturated substrates. RUSSIAN CHEMICAL REVIEWS 2008. [DOI: 10.1070/rc2007v076n11abeh003693] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tsuchiya K, Ideta K, Mogi K, Sunada Y, Nagashima H. Experimental and theoretical aspects of the haptotropic rearrangement of diiron and diruthenium carbonyl complexes bound to 4,6,8-trimethylazulene. Dalton Trans 2008:2708-16. [DOI: 10.1039/b719331a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Arnold PL, Edworthy IS, Carmichael CD, Blake AJ, Wilson C. Magnesium amido N-heterocyclic carbene complexes. Dalton Trans 2008:3739-46. [DOI: 10.1039/b803253j] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Affiliation(s)
- Peter M. Zeimentz
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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41
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Li S, Miao W, Tang T, Cui D, Chen X, Jing X. Rare earth metal bis(alkyl) complexes bearing amino phosphine ligands: Synthesis and catalytic activity toward ethylene polymerization. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.07.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Catellani M, Motti E, Della Ca' N, Ferraccioli R. Recent Developments in Catalytic Aryl Coupling Reactions. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700312] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marta Catellani
- Dipartimento di Chimica Organica e Industriale and CIRCC, Università di Parma, V. le G.P. Usberti, 17/A, 43100 Parma, Italy, Fax: +39‐0521‐905472
| | - Elena Motti
- Dipartimento di Chimica Organica e Industriale and CIRCC, Università di Parma, V. le G.P. Usberti, 17/A, 43100 Parma, Italy, Fax: +39‐0521‐905472
| | - Nicola Della Ca'
- Dipartimento di Chimica Organica e Industriale and CIRCC, Università di Parma, V. le G.P. Usberti, 17/A, 43100 Parma, Italy, Fax: +39‐0521‐905472
| | - Raffaella Ferraccioli
- CNR‐Istituto di Scienze e Tecnologie Molecolari (ISTM), Via C. Golgi 19, 20133 Milano, Italy
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Pi C, Liu R, Zheng P, Chen Z, Zhou X. Selective Reaction Based on the Linked Diamido Ligands of Dinuclear Lanthanide Complexes. Inorg Chem 2007; 46:5252-9. [PMID: 17523630 DOI: 10.1021/ic070203p] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The dinuclear ytterbium pyridyl diamido complexes [Cp(2)Yb(THF)](2)[mu-eta(1):eta(2)-(NH)(2)(C(5)H(3)N-2,6)] (1a) and [Cp(2)Yb(THF)](2)[mu-eta(1):eta(2)-(NH)(2)(C(5)H(3)N-2,3)] (1b) are easily prepared by protonolysis of Cp(3)Yb with 0.5 equiv of the corresponding diaminopyridine in accepted yields, respectively. Treatment of 1a with 2 equiv of dicyclohexylcarbodiimide (CyN=C=NCy) in THF at low temperature leads to the isolation of the formal double N-H addition product (Cp(2)Yb)(2)[mu-eta(2):eta(2)-(CyN(CyNH)CN)(2)(C(5)H(3)N-2,6)] (2) in 42% yield. Compound 2 is unstable to heat and slowly isomerized to the mixed neutral/dianionic diguanidinate complex (Cp(2)Yb)(2)[mu-eta(2):eta(2)-(CyNH)(2)CN(C(5)H(3)N-2,6)NC(NCy)(2)](THF) (3) at room temperature. Similarly, treatment of 1b with 2 equiv of CyN=C=NCy gives the addition/ isomerization product (Cp(2)Yb)(2)[mu-eta(2):eta(2):eta(1)-(CyNH)(2)CN(C(5)H(3)N-2,3)NC(NCy)(2)] (4). Moreover, the reaction of various ytterbium aryl diamido complexes (prepared in situ from [Cp(2)YbMe](2) and aryldiamine, respectively) with CyN=C=NCy affords the corresponding addition products (Cp(2)Yb)(2)[mu-eta(2):eta(2)-{CyN(CyNH)CN}(2)(C(6)H(4)-1,4)] (5), (Cp(2)Yb)(2)[mu-eta(2):eta(2)-{CyN(CyNH)CN}(2)(C(6)H(4)-1,3)](6), and (Cp(2)Yb)(2)[mu-eta(2):eta(2)-{CyN(CyNH)CN}(2)(C(13)H(8)-2,7)] (7), respectively. In contrast to pyridyl-bridged bis(guanidinate monoanion) complexes, aryl-bridged bis(guanidinate monoanion) complexes 5-7 are stable even with prolonged heating at 110 degrees C. All the results not only demonstrate that the presence of the pyridyl bridge can impart the diamido complexes with a unique reactivity and initiate the unexpected reaction sequence but also indicate evidently that the number and distribution of negative charges of the diguanidinate ligand is tunable from double monoanionic units to mixed neutral/dianionic isomers. All the complexes are characterized by elemental analysis and IR spectroscopies. The structures of complexes 1a, 3, 5, 6, and 7 are also determined through X-ray single-crystal diffraction analysis.
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Affiliation(s)
- Chengfu Pi
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, People's Republic of China
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Riegert D, Collin J, Daran JC, Fillebeen T, Schulz E, Lyubov D, Fukin G, Trifonov A. Neutral Yttrium Tris(amide) and Ate Complexes Coordinated by an (R)-N,N′-Diisopropyl-1,1′-binaphthyl-2,2′-diamido Ligand as Enantioselective Catalysts for Intramolecular Hydroamination. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600872] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lanthanides and actinides: Annual survey of their organometallic chemistry covering the years 2001 and 2002. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2006.02.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cofone A, Niemeyer M. A Monomeric, Base-Free Samarium(II) Thiophenolate with a π-Encapsulated Rare-Earth Metal. Z Anorg Allg Chem 2006. [DOI: 10.1002/zaac.200600140] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Izod K, Liddle ST, Clegg W, Harrington RW. Amino-functionalised diarylphosphide complexes of the alkali metals and lanthanum. Dalton Trans 2006:3431-7. [PMID: 16832492 DOI: 10.1039/b601938b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The secondary phosphines Ar(C6H4-2-CH2NMe2)PH [Ar = mes (3), Tripp (4)] may be isolated in good yields from reactions between Li(C6H4-2-CH2NMe2) and the respective dichlorophosphine, followed by reduction with LiAlH4 [mes = 2,4,6-Me3C6H2, Tripp = 2,4,6-Pri3C6H2]. Metalation of either 3 or 4 with BunLi gives the corresponding lithium compound; the lithium derivative of 3 was isolated as the separated ion pair complex [Li(12-crown-4)2][(mes)(C6H4-2-CH2NMe2)P].THF (5). The lithium complexes Ar(C6H4-2-CH2NMe2)PLi undergo metathesis reactions with either NaOBut or KOBut to give the heavier alkali metal phosphides {Ar(C6H4-2-CH2NMe2)P}M.1/2OEt2 [Ar = mes, M = Na (8), K (9); Ar = Tripp, M = K (10)]. Metathesis reactions between 9 and LaI3(THF)4 give only intractable products; in contrast, a metathesis reaction between 10 and LaI3(THF)4 yields the heteroleptic complex {(Tripp)(C6H4-2-CH2NMe2)P}2LaI (11). Compound 11 reacts cleanly with K{N(SiMe3)2} to give {(Tripp)(C6H4-2-CH2NMe2)P}2La{N(SiMe3)2} (14). Compounds 3-5, 8-11 and 14 have been characterised by multi-element NMR spectroscopy; in addition, compounds 5, 11 and 14 have been studied by X-ray crystallography.
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Affiliation(s)
- Keith Izod
- Department of Chemistry, School of Natural Sciences, Bedson Building, University of Newcastle, Newcastle upon Tyne, UKNE1 7RU.
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Arndt S, Elvidge BR, Zeimentz PM, Spaniol TP, Okuda J. Formation of a Dicationic Yttrium η2-Pyridyl Complex from an Yttrium Methyl Dication by C−H Activation of Pyridine. Organometallics 2005. [DOI: 10.1021/om0509140] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefan Arndt
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Benjamin R. Elvidge
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Peter M. Zeimentz
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Thomas P. Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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Jantunen KC, Haftbaradaran F, Katz MJ, Batchelor RJ, Schatte G, Leznoff DB. Synthesis and structure of diamido ether uranium(iv) and thorium(iv) halide “ate” complexes and their conversion to salt-free bis(alkyl) complexes. Dalton Trans 2005:3083-91. [PMID: 16127504 DOI: 10.1039/b506180f] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The high-yield synthesis, spectroscopic and structural determination of three new uranium(IV) and thorium(IV)ate complexes supported by three different diamido ether ligands are reported. The reaction of Li2[2,6-iPr2PhN(CH2CH2)]2O (Li2[DIPPNCOCN]) with 1 equiv. of UCl4 in THF generates [DIPPNCOCN]UCl3Li(THF)2(1), while reaction in toluene/ether gives salt-free [DIPPNCOCN]UCl2.1/2C7H8(2), which was identified by paramagnetically shifted 1H NMR. Reaction of 0.5 equiv. of {[tBuNON]UCl2}2([tBuNON]=[(CH3)3CN(Si(CH3)2)]2O2-) with 3.5 equiv. LiI in toluene and a minimal amount of THF results in [tBuNON]UI3Li(THF)2(3) and is very similar in structure to 1. {[MesNON]ThCl3Li(THF)}2(4), a dimeric complex with a Th2Li2Cl6 core, is prepared by reaction of Li2[2,4,6-Me3PhN(Si(CH3)2)]2O (Li2[MesNON]) with ThCl4 in THF. The analogous reaction in toluene did not yield the salt-free complex but rather a sterically crowded diligated compound, [MesNON]2Th (5), which was also structurally characterized. Complex 5 was prepared rationally by reacting 2 equiv. Li2[MesNON] with ThCl4 in toluene. The reaction of 1 and 3 with 2 equiv. of LiCH2Si(CH3)3 generates the stable, salt-free organoactinides [DIPPNCOCN]U(CH2Si(CH3)3)2(6) and [tBuNON]U(CH2Si(CH3)3)2(7). Complex 6 was structurally characterized. These reactions illustrate the viability of ate complexes as useful synthetic precursors.
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Affiliation(s)
- Kimberly C Jantunen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, CanadaV5A 1S6
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50
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Izod K, Liddle ST, McFarlane W, Clegg W. Synthesis and Reactions of Sterically Encumbered, Heteroleptic Lanthanum Phosphides. Structural Characterization of [{(Me3Si)2CH}- (C6H4-2-CH2NMe2)P]2La(OR) and [{(Me3Si)2CH}- (C6H4-2-CH2NMe2)P]La(THF)[P(C6H4-2-CH2NMe2)- {CH(SiMe3)(SiMe2CH2)}] [R = i-Pr, t-Bu]. Organometallics 2004. [DOI: 10.1021/om0498798] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Keith Izod
- Department of Chemistry, School of Natural Sciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, U.K
| | - Stephen T. Liddle
- Department of Chemistry, School of Natural Sciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, U.K
| | - William McFarlane
- Department of Chemistry, School of Natural Sciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, U.K
| | - William Clegg
- Department of Chemistry, School of Natural Sciences, University of Newcastle, Newcastle upon Tyne, NE1 7RU, U.K
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