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Schwarz N, Sun X, Yadav R, Köppe R, Simler T, Roesky PW. Application of the Redox-Transmetalation Procedure to Access Divalent Lanthanide and Alkaline-Earth NHC Complexes*. Chemistry 2021; 27:12857-12865. [PMID: 34165229 PMCID: PMC8518399 DOI: 10.1002/chem.202101923] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Indexed: 11/10/2022]
Abstract
Divalent lanthanide and alkaline-earth complexes supported by N-heterocyclic carbene (NHC) ligands have been accessed by redox-transmetalation between air-stable NHC-AgI complexes and the corresponding metals. By using the small ligand 1,3-dimethylimidazol-2-ylidene (IMe), two series of isostructural complexes were obtained: the tetra-NHC complexes [LnI2 (IMe)4 ] (Ln=Eu and Sm) and the bis-NHC complexes [MI2 (IMe)2 (THF)2 ] (M=Yb, Ca and Sr). In the former, distortions in the NHC coordination were found to originate from intermolecular repulsions in the solid state. Application of the redox-transmetalation strategy with the bulkier 1,3-dimesitylimidazol-2-ylidene (IMes) ligand yielded [SrI2 (IMes)(THF)3 ], while using a similar procedure with Ca metal led to [CaI2 (THF)4 ] and uncoordinated IMes. DFT calculations were performed to rationalise the selective formation of the bis-NHC adduct in [SrI2 (IMe)2 (THF)2 ] and the tetra-NHC adduct in [SmI2 (IMe)4 ]. Since the results in the gas phase point towards preferential formation of the tetra-NHC complexes for both metal centres, the differences between both arrangements are a result of solid-state effects such as slightly different packing forces.
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Affiliation(s)
- Noah Schwarz
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Xiaofei Sun
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Ravi Yadav
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Ralf Köppe
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Thomas Simler
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
- Laboratoire de Chimie Moléculaire (LCM) CNRS, École PolytechniqueInstitut Polytechnique de Paris91120PalaiseauFrance
| | - Peter W. Roesky
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
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2
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Schneider C, Demeshko S, Meyer F, Werncke CG. A Molecular Low-Coordinate [Fe-S-Fe] Unit in Three Oxidation States. Chemistry 2021; 27:6348-6353. [PMID: 33512018 PMCID: PMC8048577 DOI: 10.1002/chem.202100336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 11/10/2022]
Abstract
A [Fe-S-Fe] subunit with a single sulfide bridging two low-coordinate iron ions is the supposed active site of the iron-molybdenum co-factor (FeMoco) of nitrogenase. Here we report a dinuclear monosulfido bridged diiron(II) complex with a similar complex geometry that can be oxidized stepwise to diiron(II/III) and diiron(III/III) complexes while retaining the [Fe-S-Fe] core. The series of complexes has been characterized crystallographically, and electronic structures have been studied using, inter alia, 57 Fe Mössbauer spectroscopy and SQUID magnetometry. Further, cleavage of the [Fe-S-Fe] unit by CS2 is presented.
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Affiliation(s)
- Christian Schneider
- Fachbereich ChemiePhilipps-UniversitätHans-Meerwein-Str. 435043MarburgGermany
| | - Serhiy Demeshko
- Institut für Anorganische ChemieUniversität GöttingenTammannstr. 437077GöttingenGermany
| | - Franc Meyer
- Institut für Anorganische ChemieUniversität GöttingenTammannstr. 437077GöttingenGermany
| | - C. Gunnar Werncke
- Fachbereich ChemiePhilipps-UniversitätHans-Meerwein-Str. 435043MarburgGermany
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3
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He Z, Xue X, Liu Y, Yu N, Krogman JP. Aminolysis of bis[bis(trimethylsilyl)amido]-manganese, -iron, and -cobalt for the synthesis of mono- and bis-silylene complexes. Dalton Trans 2020; 49:12586-12591. [PMID: 32856683 DOI: 10.1039/d0dt00570c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a method for the synthesis of amidinate stabilized silylene (NHSi) metal-halide complexes from M{N(SiMe3)2}2 (M = Mn, Fe, Co). The reported reactions can be used to make mono-silylene or bis-silylene complexes and the resulting products can be easily controlled by the reaction stoichiometry. Additionally, we apply this new synthetic protocol for the synthesis of a bis-iron complex derived from a bis-amidinate ligand having a terphenyl backbone.
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Affiliation(s)
- Zhiyuan He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. and Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaolian Xue
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Yilan Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Jeremy P Krogman
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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4
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Kneusels NJH, Münzer JE, Flosdorf K, Jiang D, Neumüller B, Zhao L, Eichhöfer A, Frenking G, Kuzu I. Double donation in trigonal planar iron-carbodiphosphorane complexes - a concise study on their spectroscopic and electronic properties. Dalton Trans 2020; 49:2537-2546. [PMID: 32022052 DOI: 10.1039/c9dt04725e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We present the syntheses of trigonal planar coordinated Fe(ii) carbodiphosphorane (CDPR) complexes, starting from iron(ii)-bis(trimethylsilylamide) [Fe{N(SiMe3)2}2] and hexaphenyl-(CDPPh) and sym-dimethyltetraphenyl-carbodiphosphoranes (CDPMe), respectively. Both complexes [CDPPh-Fe{N(SiMe3)2}2] (1) and [CDPMe-Fe{N(SiMe3)2}2] (2) were examined in solution and in the solid state. 1 shows a dissociation equilibrium in solution which we monitored by variable temperature 1H-NMR spectroscopy. Magnetic measurements of 1 and 2 yielded a high spin configuration (S = 2) for both complexes. Quantum chemical calculations were performed to analyze the bonding situation in compound 1.
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Affiliation(s)
- Nis-Julian H Kneusels
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany.
| | - Jörn E Münzer
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany.
| | - Kimon Flosdorf
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany.
| | - Dandan Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Bernhard Neumüller
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany.
| | - Lili Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Andreas Eichhöfer
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Campus Nord, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany. and Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Istemi Kuzu
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany.
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5
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Denisov MS, Dmitriev MV, Eroshenko DV, Slepukhin PA, Shavkunov SP, Glushkov VA. Cationic—Anionic Pd(II) Complexes with Adamantylimidazolium Cation: Synthesis, Structural Study, and MAO-Inhibiting Activity. RUSS J INORG CHEM+ 2019. [DOI: 10.1134/s0036023619010054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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6
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Danopoulos AA, Simler T, Braunstein P. N-Heterocyclic Carbene Complexes of Copper, Nickel, and Cobalt. Chem Rev 2019; 119:3730-3961. [PMID: 30843688 DOI: 10.1021/acs.chemrev.8b00505] [Citation(s) in RCA: 269] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The emergence of N-heterocyclic carbenes as ligands across the Periodic Table had an impact on various aspects of the coordination, organometallic, and catalytic chemistry of the 3d metals, including Cu, Ni, and Co, both from the fundamental viewpoint but also in applications, including catalysis, photophysics, bioorganometallic chemistry, materials, etc. In this review, the emergence, development, and state of the art in these three areas are described in detail.
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Affiliation(s)
- Andreas A Danopoulos
- Laboratory of Inorganic Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , Athens GR 15771 , Greece.,Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Thomas Simler
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Pierre Braunstein
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
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7
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Lindhorst AC, Kaspar M, Altmann PJ, Pöthig A, Kühn FE. Synthesis, characterization and derivatization of hydroxyl-functionalized iron(ii) bis(NHC) complexes. Dalton Trans 2018; 47:1857-1867. [PMID: 29337326 DOI: 10.1039/c7dt04774f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses of a novel hydroxyl-functionalized tetradentate NHC/pyridine hybrid ligand and the corresponding Ag(i) and Fe(ii) complexes are presented. Spectroscopic and X-ray diffraction techniques are used for structural investigations and cyclic voltammetry measurements reveal interesting electronic properties. Transmetalation of the trinuclear Ag(i) complex (C1) yields a mononuclear and a dinuclear iron(ii) bis(NHC) complex (C2 and C3), which can be separated by stepwise precipitation. The former is isostructural to iron(ii) bis(NHC) complex A, which is a versatile oxidation catalyst. Furthermore, suitable conditions for esterification reactions of the ligand precursor and iron(ii) bis(NHC) complex (C2) have been established, demonstrating the utility of the hydroxyl functionality for immobilization and derivatization purposes.
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Affiliation(s)
- Anja C Lindhorst
- Molecular Catalysis, Catalysis Research Center and Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, D-85747 Garching bei München, Germany.
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8
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Simler T, Choua S, Danopoulos AA, Braunstein P. Reactivity of a dearomatised pincer CoIIBr complex with PNCNHC donors: alkylation and Si–H bond activation via metal–ligand cooperation. Dalton Trans 2018; 47:7888-7895. [DOI: 10.1039/c8dt01279b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Whereas [Co(CyP*NaCNHC)Br] (1) with dearomatised pincer CyP*NaCNHC affords the CoII–alkyl complex 3, uncommon silane reduction yields the CoI complex 4.
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Affiliation(s)
- Thomas Simler
- Université de Strasbourg
- CNRS
- CHIMIE UMR 7177
- Laboratoire de Chimie de Coordination
- 67081 Strasbourg
| | - Sylvie Choua
- Université de Strasbourg
- CNRS
- CHIMIE UMR 7177
- Propriétés Optiques et Magnétiques des Architectures Moléculaires
- 67081 Strasbourg
| | - Andreas A. Danopoulos
- Université de Strasbourg
- CNRS
- CHIMIE UMR 7177
- Laboratoire de Chimie de Coordination
- 67081 Strasbourg
| | - Pierre Braunstein
- Université de Strasbourg
- CNRS
- CHIMIE UMR 7177
- Laboratoire de Chimie de Coordination
- 67081 Strasbourg
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9
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Johnson C, Albrecht M. Piano-stool N-heterocyclic carbene iron complexes: Synthesis, reactivity and catalytic applications. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.027] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Schneider H, Schmidt D, Eichhöfer A, Radius M, Weigend F, Radius U. Synthesis and Reactivity of NHC‐Stabilized Iron(II)–Mesityl Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Heidi Schneider
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - David Schmidt
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Andreas Eichhöfer
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
| | - Michael Radius
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Florian Weigend
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Udo Radius
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
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11
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Danopoulos AA, Braunstein P, Monakhov KY, van Leusen J, Kögerler P, Clémancey M, Latour JM, Benayad A, Tromp M, Rezabal E, Frison G. Heteroleptic, two-coordinate [M(NHC){N(SiMe 3) 2}] (M = Co, Fe) complexes: synthesis, reactivity and magnetism rationalized by an unexpected metal oxidation state. Dalton Trans 2017; 46:1163-1171. [PMID: 28054058 DOI: 10.1039/c6dt03565e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The linear, two-coordinate and isostructural heteroleptic [M(IPr){N(SiMe3)2}] (IPr = 1,3-bis(diisopropylphenyl)-imidazol-2-ylidene), formally MI complexes (M = Co, 3; Fe, 4) were obtained by the reduction of [M(IPr)Cl{N(SiMe3)2}] with KC8, or [Co(IPr){N(SiMe3)2}2] with mes*PH2, mes* = 2,4,6-tBu3C6H2. The magnetism of 3 and 4 implies CoII and FeII centres coupled to one ligand-delocalized electron, in line with XPS and XANES data; the ac susceptibility of 4 detected a pronounced frequency dependence due to slow magnetization relaxation. Reduction of [Fe(IPr)Cl{N(SiMe3)2}] with excess KC8 in toluene gave the heteronuclear 'inverse-sandwich' Fe-K complex 7, featuring η6-toluene sandwiched between one Fe0 and one K+ centre.
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Affiliation(s)
- Andreas A Danopoulos
- Institute for Advanced Study (USIAS), Université de Strasbourg, 67081 Strasbourg Cedex, France. and Université de Strasbourg, CNRS, CHIMIE UMR 7177, Laboratoire de Chimie de Coordination, Institut de Chimie, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France.
| | - Pierre Braunstein
- Université de Strasbourg, CNRS, CHIMIE UMR 7177, Laboratoire de Chimie de Coordination, Institut de Chimie, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France.
| | - Kirill Yu Monakhov
- Institut für Anorganische Chemie, RWTH Aachen University, 52074 Aachen, Germany.
| | - Jan van Leusen
- Institut für Anorganische Chemie, RWTH Aachen University, 52074 Aachen, Germany.
| | - Paul Kögerler
- Institut für Anorganische Chemie, RWTH Aachen University, 52074 Aachen, Germany. and Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute 6, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Martin Clémancey
- Laboratoire de Chimie et Biologie des Métaux, Equipe de Physicochimie des Métaux en Biologie, UMR 5249 CNRS/CEA-DRF-BIG/Université Grenoble-Alpes, 17 rue des Martyrs, Grenoble 38054, France
| | - Jean-Marc Latour
- Laboratoire de Chimie et Biologie des Métaux, Equipe de Physicochimie des Métaux en Biologie, UMR 5249 CNRS/CEA-DRF-BIG/Université Grenoble-Alpes, 17 rue des Martyrs, Grenoble 38054, France
| | - Anass Benayad
- CEA/DRT/LITEN/DTNM/SEN/L2N, 38054 Grenoble Cedex 9, France
| | - Moniek Tromp
- Van't Hoff Institute for Molecular Sciences, Sustainable Materials Characterisation, University of Amsterdam, Amsterdam, The Netherlands
| | - Elixabete Rezabal
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128 Palaiseau, France
| | - Gilles Frison
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128 Palaiseau, France
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12
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Luo Q, Dai Z, Cong H, Li R, Peng T, Zhang J. Oxidant-free synthesis of benzimidazoles from alcohols and aromatic diamines catalysed by new Ru(ii)-PNS(O) pincer complexes. Dalton Trans 2017; 46:15012-15022. [DOI: 10.1039/c7dt02584j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A greener method for synthesizing 2-substituted benzimidazole through the acceptorless dehydrogenative condensation of alcohols and ortho-arylenediamine is developed.
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Affiliation(s)
- Qi Luo
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Zengjin Dai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Renjie Li
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Tianyou Peng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Jing Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
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13
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Pranckevicius C, Iovan DA, Stephan DW. Three and four coordinate Fe carbodiphosphorane complexes. Dalton Trans 2016; 45:16820-16825. [PMID: 27711768 DOI: 10.1039/c6dt03453e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbodiphosphoranes (CDPs) are a family of divalent carbon ligands that are known for their exceptional electron donor properties. Herein, the preparation and reactivity of a family of three and four co-ordinate Fe carbodiphosphorane complexes is described. Hexaphenylcarbodiphosphorane (HCDP) [1] is shown to react with FeCl2(PPh3)2 to form the three coordinate adduct Fe(HCDP)Cl2 [2], which is equilibrium with its four coordinate dimer. Reaction of [2] with two equivalents of benzyl Grignard yields the corresponding dialkyl complex (HCDP)FeBn2 [3]. Combination of [2] with LiHMDS results in salt metathesis and the formation of the monosilylated derivative Fe(HCDP)Cl(N(SiMe3)2) [4]. Subsequent anion exchange leads to the three coordinate Fe(HCDP)(OTf)(N(SiMe3)2) [5] which was characterized crystallographically and in solution.
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Affiliation(s)
- Conor Pranckevicius
- Department of Chemistry, University of Toronto, 80 St George St., Toronto, ON, Canada M5S3H6.
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14
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Dunsford JJ, Evans DJ, Pugh T, Shah SN, Chilton NF, Ingleson MJ. Three-Coordinate Iron(II) Expanded Ring N-Heterocyclic Carbene Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00121] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jay J. Dunsford
- School
of Chemistry, University of Manchester, Brunswick Street, Manchester M13 9PL, U.K
| | - David J. Evans
- Department
of Chemistry, University of Hull, Cottingham Road, Hull HU6 7RX, U.K
| | - Thomas Pugh
- School
of Chemistry, University of Manchester, Brunswick Street, Manchester M13 9PL, U.K
| | - Sachin N. Shah
- Department
of Chemistry, University of Hull, Cottingham Road, Hull HU6 7RX, U.K
| | - Nicholas F. Chilton
- School
of Chemistry, University of Manchester, Brunswick Street, Manchester M13 9PL, U.K
| | - Michael J. Ingleson
- School
of Chemistry, University of Manchester, Brunswick Street, Manchester M13 9PL, U.K
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15
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Liang Q, Janes T, Gjergji X, Song D. Iron complexes of a bidentate picolyl-NHC ligand: synthesis, structure and reactivity. Dalton Trans 2016; 45:13872-80. [DOI: 10.1039/c6dt02792j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Reversible deprotonation–reprotonation of a bidentate picolyl-NHC ligand on Fe(ii).
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Affiliation(s)
- Qiuming Liang
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Trevor Janes
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Xhoana Gjergji
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Datong Song
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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16
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Reiners M, Baabe D, Harms K, Maekawa M, Daniliuc CG, Freytag M, Jones PG, Walter MD. N-Heterocyclic carbene adducts to [Cp′FeI]2: synthesis and molecular and electronic structure. Inorg Chem Front 2016. [DOI: 10.1039/c5qi00235d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Adducts [Cp′FeI(NHC)] exhibit a highly anisotropic magnetic Ms = ±2 ground state resulting in unusual large spin–lattice (Orbach) relaxation barriers observed by zero-field 57Fe Mössbauer spectroscopy.
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Affiliation(s)
- Matthias Reiners
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Dirk Baabe
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Kristoffer Harms
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Miyuki Maekawa
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Constantin G. Daniliuc
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
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17
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Simler T, Braunstein P, Danopoulos AA. Cobalt PNCNHC ‘pincers’: ligand dearomatisation, formation of dinuclear and N2 complexes and promotion of C–H activation. Chem Commun (Camb) 2016; 52:2717-20. [DOI: 10.1039/c5cc10121b] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Ligand dearomatisation in CoII phosphino-picoline NHC-type pincers and dicobalt complexes result from side-arm metalation or C–H activation at the NHC backbone; in the latter case, an ‘anionic dicarbene’ originates from a dearomatised CoI–N2 complex.
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Affiliation(s)
- Thomas Simler
- Laboratoire de Chimie de Coordination
- Institut de Chimie (UMR 7177 CNRS)
- Université de Strasbourg
- 67081 Strasbourg Cedex
- France
| | - Pierre Braunstein
- Laboratoire de Chimie de Coordination
- Institut de Chimie (UMR 7177 CNRS)
- Université de Strasbourg
- 67081 Strasbourg Cedex
- France
| | - Andreas A. Danopoulos
- Laboratoire de Chimie de Coordination
- Institut de Chimie (UMR 7177 CNRS)
- Université de Strasbourg
- 67081 Strasbourg Cedex
- France
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18
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Weiss DT, Anneser MR, Haslinger S, Pöthig A, Cokoja M, Basset JM, Kühn FE. NHC Versus Pyridine: How “Teeth” Change the Redox Behavior of Iron(II) Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00732] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel T. Weiss
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Markus R. Anneser
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Stefan Haslinger
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Alexander Pöthig
- Catalysis
Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße
1, D-85747 Garching
bei München, Germany
| | - Mirza Cokoja
- Chair of Inorganic & Organometallic Chemistry, Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Jean-Marie Basset
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Fritz E. Kühn
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
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19
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Al-Afyouni MH, Krishnan VM, Arman HD, Tonzetich ZJ. Synthesis and Reactivity of Manganese(II) Complexes Containing N-Heterocyclic Carbene Ligands. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00684] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Malik H. Al-Afyouni
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - V. Mahesh Krishnan
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department
of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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20
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Przyojski JA, Veggeberg KP, Arman HD, Tonzetich ZJ. Mechanistic Studies of Catalytic Carbon–Carbon Cross-Coupling by Well-Defined Iron NHC Complexes. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01445] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacob A. Przyojski
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Kevin P. Veggeberg
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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21
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Ouyang Z, Du J, Wang L, Kneebone JL, Neidig ML, Deng L. Linear and T-Shaped Iron(I) Complexes Supported by N-Heterocyclic Carbene Ligands: Synthesis and Structure Characterization. Inorg Chem 2015; 54:8808-16. [PMID: 26273996 PMCID: PMC4894307 DOI: 10.1021/acs.inorgchem.5b01522] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The use of the N-heterocyclic carbene (NHC) ligands 1,3-bis(2',6'-diethylphenyl)-4,5-(CH2)4-imidazol-2-ylidene (cyIDep), 1,3-bis(2',6'-diethylphenyl)-imidazolin-2-ylidene (sIDep), and its N-mesityl analogue sIMes enables the preparation of the two-coordinate homoleptic iron(I)-NHC complexes [(cyIDep)2Fe][BAr(F)4] (3, Ar(F) denoted for 3,5-di(trifluoromethyl)phenyl) and [(sIDep)2Fe][BAr(F)4] (4) and the T-shaped iron(I)-NHC complex [(sIMes)2Fe(THF)][BPh4] (5, THF = tetrahydrofuran). Complexes 3-5 were prepared via the sequential protocol of control reduction of iron(II) dihalides by KC8 in the presence of the corresponding NHC ligands followed by halide-abstraction with NaBAr4. Spectroscopic characterization, including single-crystal X-ray diffraction studies and (57)Fe Mössbauer spectroscopy, in combination with density functional theory calculations, suggest their high-spin nature. Solution property study (absorption spectroscopy and cyclic voltammetry) indicates that 3 and 5 keep their corresponding two- and three-coordinate nature in THF solution, and 4 might reversibly coordinate a THF molecule to form, presumably, the T-shaped species [(sIDep)2Fe(THF)][BAr(F)4]. The isolation of 3 and 4 demonstrates the accessibility of homoleptic two-coordinate iron(I)-NHC complexes.
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Affiliation(s)
- Zhenwu Ouyang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jingzhen Du
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Lei Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jared L. Kneebone
- Department of Chemistry, University of Rochester, New York 14627, United States
| | - Michael L. Neidig
- Department of Chemistry, University of Rochester, New York 14627, United States
| | - Liang Deng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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22
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Maddock LCH, Cadenbach T, Kennedy AR, Borilovic I, Aromí G, Hevia E. Accessing Sodium Ferrate Complexes Containing Neutral and Anionic N-Heterocyclic Carbene Ligands: Structural, Synthetic, and Magnetic Insights. Inorg Chem 2015; 54:9201-10. [DOI: 10.1021/acs.inorgchem.5b01638] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Lewis C. H. Maddock
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, U.K. G1 1XL
| | - Thomas Cadenbach
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, U.K. G1 1XL
| | - Alan R. Kennedy
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, U.K. G1 1XL
| | - Ivana Borilovic
- Departament
de Quı́mica Inorgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Guillem Aromí
- Departament
de Quı́mica Inorgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Eva Hevia
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, U.K. G1 1XL
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23
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Liu Y, Luo L, Xiao J, Wang L, Song Y, Qu J, Luo Y, Deng L. Four-Coordinate Iron(II) Diaryl Compounds with Monodentate N-Heterocyclic Carbene Ligation: Synthesis, Characterization, and Their Tetrahedral-Square Planar Isomerization in Solution. Inorg Chem 2015; 54:4752-60. [PMID: 25822256 DOI: 10.1021/acs.inorgchem.5b00138] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The salt elimination reactions of (IPr2Me2)2FeCl2 (IPr2Me2 = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) with the corresponding aryl Grignard reagents afford [(IPr2Me2)2FeAr2] (Ar = Ph, 3; C6H4-p-Me, 4; C6H4-p-(t)Bu, 5; C6H3-3,5-(CF3)2, 6) in good yields. X-ray crystallographic studies revealed the presence of both tetrahedral and trans square planar isomers for 3 and 6 and the tetrahedral structures for 4 and 5. Magnetic susceptibility and (57)Fe Mössbauer spectrum measurements on the solid samples indicated the high-spin (S = 2) and intermediate-spin (S = 1) nature of the tetrahedral and square planar structures, respectively. Solution property studies, including solution magnetic susceptibility measurement, variable-temperature (1)H and (19)F NMR, and absorption spectroscopy, on 3-6, as well as an (57)Fe Mössbauer spectrum study on a frozen tetrahydrofuran solution of tetrahedral [(IPr2Me2)2(57)FePh2] suggest the coexistence of tetrahedral and trans square planar structures in solution phase. Density functional theory calculations on (IPr2Me2)2FePh2 disclosed that the tetrahedral and trans square planar isomers are close in energy and that the geometry isomerization can occur by spin-change-coupled geometric transformation on four-coordinate iron(II) center.
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Affiliation(s)
- Yuesheng Liu
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - Lun Luo
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Jie Xiao
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - Lei Wang
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - You Song
- ∥State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China, 210093
| | - Jingping Qu
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Yi Luo
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Liang Deng
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
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24
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Hansen CB, Jordan RF, Hillhouse GL. Protonolysis and Amide Exchange Reactions of a Three-Coordinate Cobalt Amide Complex Supported by an N-Heterocyclic Carbene Ligand. Inorg Chem 2015; 54:4603-10. [DOI: 10.1021/ic502670x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Christopher B. Hansen
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Richard F. Jordan
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Gregory L. Hillhouse
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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25
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Anneser MR, Haslinger S, Pöthig A, Cokoja M, Basset JM, Kühn FE. Synthesis and Characterization of an Iron Complex Bearing a Cyclic Tetra-N-heterocyclic Carbene Ligand: An Artifical Heme Analogue? Inorg Chem 2015; 54:3797-804. [DOI: 10.1021/ic503043h] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Markus R. Anneser
- Chair of Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Ernst-Otto-Fischer-Strasse 1
and Faculty of Chemistry, Lichtenbergstrasse 4, Technische Universität München (TUM), D-85747 Garching bei München, Germany
| | - Stefan Haslinger
- Chair of Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Ernst-Otto-Fischer-Strasse 1
and Faculty of Chemistry, Lichtenbergstrasse 4, Technische Universität München (TUM), D-85747 Garching bei München, Germany
| | - Alexander Pöthig
- Chair of Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Ernst-Otto-Fischer-Strasse 1
and Faculty of Chemistry, Lichtenbergstrasse 4, Technische Universität München (TUM), D-85747 Garching bei München, Germany
| | - Mirza Cokoja
- Chair of Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Ernst-Otto-Fischer-Strasse 1
and Faculty of Chemistry, Lichtenbergstrasse 4, Technische Universität München (TUM), D-85747 Garching bei München, Germany
| | - Jean-Marie Basset
- KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Fritz E. Kühn
- Chair of Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Ernst-Otto-Fischer-Strasse 1
and Faculty of Chemistry, Lichtenbergstrasse 4, Technische Universität München (TUM), D-85747 Garching bei München, Germany
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26
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Nelson DJ. Accessible Syntheses of Late Transition Metal (Pre)Catalysts Bearing N-Heterocyclic Carbene Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500061] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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27
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Böttcher T, Röschenthaler GV. Highly reactive carbenes as ligands for main group element fluorides. Syntheses and applications. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2014.10.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Massard A, Braunstein P, Danopoulos AA, Choua S, Rabu P. Studies on Three-Coordinate [Co{N(SiMe3)2}2L] Complexes, L = N-Heterocyclic Carbene. Organometallics 2015. [DOI: 10.1021/om501178p] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Alexandre Massard
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, F-67081 Strasbourg Cedex, France
| | - Pierre Braunstein
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, F-67081 Strasbourg Cedex, France
| | - Andreas A. Danopoulos
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, F-67081 Strasbourg Cedex, France
- Université de Strasbourg Institute for Advanced Study (USIAS), F-67083 Strasbourg, France
| | - Sylvie Choua
- Institut
de Chimie, Université de Strasbourg, 1 rue Blaise Pascal, BP 296 R8, F-67008 Strasbourg Cedex, France
| | - Pierre Rabu
- Institut
de Physique et Chimie des Matériaux de Strasbourg (IPCMS) (UMR7504 CNRS - Université de Strasbourg), 23 rue du Loess, F-67034 Strasbourg, France
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29
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Fillman KL, Przyojski JA, Al-Afyouni MH, Tonzetich ZJ, Neidig ML. A combined magnetic circular dichroism and density functional theory approach for the elucidation of electronic structure and bonding in three- and four-coordinate iron(II)- N-heterocyclic carbene complexes. Chem Sci 2015; 6:1178-1188. [PMID: 25621143 PMCID: PMC4302958 DOI: 10.1039/c4sc02791d] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 11/07/2014] [Indexed: 01/30/2023] Open
Abstract
The combination of iron salts and N-heterocyclic carbene (NHC) ligands is a highly effective combination in catalysis, with observed catalytic activities being highly dependent on the nature of the NHC ligand. Detailed spectroscopic and electronic structure studies have been performed on both three- and four-coordinate iron(II)-NHC complexes using a combined magnetic circular dichroism (MCD) and density functional theory (DFT) approach that provide detailed insight into the relative ligation properties of NHCs compared to traditional phosphine and amine ligands as well as the effects of NHC backbone structural variations on iron(II)-NHC bonding. Near-infrared MCD studies indicate that 10Dq(Td) for (NHC)2FeCl2 complexes is intermediate between those for comparable amine and phosphine complexes, demonstrating that such iron(II)-NHC and iron(II)-phosphine complexes are not simply analogues of one another. Theoretical studies including charge decomposition analysis indicate that the NHC ligands are slightly stronger donor ligands than phosphines but also result in significant weakening of the Fe-Cl bonds compared to phosphine and amine ligands. The net result is significant differences in the d orbital energies in four-coordinate (NHC)2FeCl2 complexes relative to the comparable phosphine complexes, where such electronic structure differences are likely a significant contributing factor to the differing catalytic performances observed with these ligands. Furthermore, Mössbauer, MCD and DFT studies of the effects of NHC backbone structure variations (i.e. saturated, unsaturated, chlorinated) on iron-NHC bonding and electronic structure in both three- and four-coordinate iron(II)-NHC complexes indicate only small differences as a function of backbone structure, that are likely amplified at lower oxidation states of iron due to the resulting decrease in the energy separation between the occupied iron d orbitals and the unoccupied NHC π* orbitals.
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Affiliation(s)
- Kathlyn L. Fillman
- Department of Chemistry , University of Rochester , Rochester , New York 14627 , USA .
| | - Jacob A. Przyojski
- Department of Chemistry , University of Texas at San Antonio , San Antonio , Texas 78249 , USA
| | - Malik H. Al-Afyouni
- Department of Chemistry , University of Rochester , Rochester , New York 14627 , USA .
| | - Zachary J. Tonzetich
- Department of Chemistry , University of Texas at San Antonio , San Antonio , Texas 78249 , USA
| | - Michael L. Neidig
- Department of Chemistry , University of Rochester , Rochester , New York 14627 , USA .
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30
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Suzuki T, Matsumoto J, Kajita Y, Inomata T, Ozawa T, Masuda H. Nitrosyl and carbene iron complexes bearing a κ3-SNS thioamide pincer type ligand. Dalton Trans 2015; 44:1017-22. [DOI: 10.1039/c4dt03128h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The monochelate iron complex with κ3-SNS thioamide pincer ligand, [Fe(THF)2(κ3-LDPM)], gave novel complexes, [Fe(NHC)(κ3-LDPM)] and [Fe(NO)2(κ3-LDPM)], by substitution reactions with N heterocyclic carbene and NO molecules, respectively.
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Affiliation(s)
- Tatsuya Suzuki
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Jun Matsumoto
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Yuji Kajita
- Department of Applied Chemistry
- Aichi Institute of Technology
- Yakusa-cho
- Japan
| | - Tomohiko Inomata
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Tomohiro Ozawa
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Hideki Masuda
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
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31
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Zhang L, Liu Y, Deng L. Three-Coordinate Cobalt(IV) and Cobalt(V) Imido Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Structure, and Their Distinct Reactivity in C–H Bond Amination. J Am Chem Soc 2014; 136:15525-8. [DOI: 10.1021/ja509731z] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Long Zhang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Yuesheng Liu
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Liang Deng
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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32
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Rieb J, Raba A, Haslinger S, Kaspar M, Pöthig A, Cokoja M, Basset JM, Kühn FE. Synthesis, Characterization, and Reactivity of Furan- and Thiophene-Functionalized Bis(N-heterocyclic carbene) Complexes of Iron(II). Inorg Chem 2014; 53:9598-606. [DOI: 10.1021/ic500959m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Julia Rieb
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Andreas Raba
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Stefan Haslinger
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Manuel Kaspar
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Alexander Pöthig
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Mirza Cokoja
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Jean-Marie Basset
- Catalysis
Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Fritz E. Kühn
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
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33
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Tsui EY, Agapie T. Carbon Dioxide Cleavage by a Ni 2 Complex Supported by a Binucleating Bis(N-Heterocyclic Carbene) Framework. Polyhedron 2014; 84:103-110. [PMID: 30393421 DOI: 10.1016/j.poly.2014.06.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A binucleating bis(N-heterocyclic carbene) ligand was designed as a means to coordinate and proximally constrain two transition metal centers. Using an imidazopyridine-based NHC afforded a framework structurally related to previously reported para-terphenyl diphosphines. Bimetallic copper, cobalt, and nickel complexes supported by this framework were synthesized and structurally characterized. Strong interactions between the metal centers and the central arene were observed in all nickel complexes. Dinickel(0) complexes of this ligand framework were found to react with CO2 to form a dicarbonyl-bridged dinickel(0) product, demonstrating facile CO2 reduction.
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Affiliation(s)
- Emily Y Tsui
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 127-72 Pasadena, CA 91125
| | - Theodor Agapie
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 127-72 Pasadena, CA 91125
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34
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Riener K, Haslinger S, Raba A, Högerl MP, Cokoja M, Herrmann WA, Kühn FE. Chemistry of Iron N-Heterocyclic Carbene Complexes: Syntheses, Structures, Reactivities, and Catalytic Applications. Chem Rev 2014; 114:5215-72. [DOI: 10.1021/cr4006439] [Citation(s) in RCA: 329] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | - Manuel P. Högerl
- KAUST Catalysis Center, Division of Physical Sciences & Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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35
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Hashimoto T, Hoshino R, Hatanaka T, Ohki Y, Tatsumi K. Dinuclear Iron(0) Complexes of N-Heterocyclic Carbenes. Organometallics 2014. [DOI: 10.1021/om401039z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Takayoshi Hashimoto
- Department
of Chemistry, Graduate School of Science, and Research Center for
Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Ryoko Hoshino
- Department
of Chemistry, Graduate School of Science, and Research Center for
Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Tsubasa Hatanaka
- Department
of Chemistry, Graduate School of Science, and Research Center for
Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Yasuhiro Ohki
- Department
of Chemistry, Graduate School of Science, and Research Center for
Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Kazuyuki Tatsumi
- Department
of Chemistry, Graduate School of Science, and Research Center for
Materials Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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36
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Musgrave RA, Turbervill RSP, Irwin M, Herchel R, Goicoechea JM. Iron(ii) complexes of ditopic carbanionic carbenes. Dalton Trans 2014; 43:4335-44. [DOI: 10.1039/c3dt52638k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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37
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Pugh T, Layfield RA. Reactivity of three-coordinate iron–NHC complexes towards phenylselenol and lithium phenylselenide. Dalton Trans 2014; 43:4251-4. [DOI: 10.1039/c3dt53203h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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38
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Mo Z, Ouyang Z, Wang L, Fillman KL, Neidig ML, Deng L. Two- and three-coordinate formal iron(i) compounds featuring monodentate aminocarbene ligands. Org Chem Front 2014. [DOI: 10.1039/c4qo00175c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monodentate aminocarbene ligands, both NHC and cAAC, are capable of stabilizing low-coordinate iron(i) compounds.
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Affiliation(s)
- Zhenbo Mo
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, China
| | - Zhenwu Ouyang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, China
| | - Lei Wang
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, China
| | | | | | - Liang Deng
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, China
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39
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Ouyang Z, Deng L. Iron(II) Complexes Featuring Bidentate N-Heterocyclic Carbene–Silyl Ligands: Synthesis and Characterization. Organometallics 2013. [DOI: 10.1021/om4010274] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenwu Ouyang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
| | - Liang Deng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
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40
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Pelties S, Wolf R. Iron(II), Cobalt(II), and Nickel(II) Complexes of a Cyclic (Alkyl)(amino)carbene. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300395] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Bulky N-heterocyclic carbene and pyridine donor adducts of Co(II) bromide: Influence on reactivity of stoichiometry, sterics and donor capability. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.05.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Day BM, Pugh T, Hendriks D, Guerra CF, Evans DJ, Bickelhaupt FM, Layfield RA. Normal-to-Abnormal Rearrangement and NHC Activation in Three-Coordinate Iron(II) Carbene Complexes. J Am Chem Soc 2013; 135:13338-41. [DOI: 10.1021/ja408589p] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Benjamin M. Day
- School of Chemistry, The University of Manchester, Manchester, M13 9PL, U.K
| | - Thomas Pugh
- School of Chemistry, The University of Manchester, Manchester, M13 9PL, U.K
| | - Daniël Hendriks
- Department of
Theoretical Chemistry, Amsterdam Center for Multiscale Modeling, VU University Amsterdam, NL-1081 HV Amsterdam, The Netherlands
| | - Célia Fonseca Guerra
- Department of
Theoretical Chemistry, Amsterdam Center for Multiscale Modeling, VU University Amsterdam, NL-1081 HV Amsterdam, The Netherlands
| | - David J. Evans
- Department
of
Chemistry, University of Hull, Hull, HU6 7RX, U.K
| | - F. Matthias Bickelhaupt
- Department of
Theoretical Chemistry, Amsterdam Center for Multiscale Modeling, VU University Amsterdam, NL-1081 HV Amsterdam, The Netherlands
- Radboud University
Nijmegen, Institute for Molecules and Materials, NL-6525 AJ Nijmegen, The Netherlands
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43
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César V, Misal Castro LC, Dombray T, Sortais JB, Darcel C, Labat S, Miqueu K, Sotiropoulos JM, Brousses R, Lugan N, Lavigne G. (Cyclopentadienyl)iron(II) Complexes of N-Heterocyclic Carbenes Bearing a Malonate or Imidate Backbone: Synthesis, Structure, and Catalytic Potential in Hydrosilylation. Organometallics 2013. [DOI: 10.1021/om400625q] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vincent César
- CNRS, LCC (Laboratoire de Chimie de Coordination),
205 route de Narbonne,
31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Luis C. Misal Castro
- UMR 6226 CNRS-Université de Rennes 1, “Institut des Sciences Chimiques
de Rennes”, Centre for Catalysis and Green Chemistry-Team “Organometallics:
Materials and Catalysis”, Campus de Beaulieu, 35042 Rennes
Cedex, France
| | - Thomas Dombray
- UMR 6226 CNRS-Université de Rennes 1, “Institut des Sciences Chimiques
de Rennes”, Centre for Catalysis and Green Chemistry-Team “Organometallics:
Materials and Catalysis”, Campus de Beaulieu, 35042 Rennes
Cedex, France
| | - Jean-Baptiste Sortais
- UMR 6226 CNRS-Université de Rennes 1, “Institut des Sciences Chimiques
de Rennes”, Centre for Catalysis and Green Chemistry-Team “Organometallics:
Materials and Catalysis”, Campus de Beaulieu, 35042 Rennes
Cedex, France
| | - Christophe Darcel
- UMR 6226 CNRS-Université de Rennes 1, “Institut des Sciences Chimiques
de Rennes”, Centre for Catalysis and Green Chemistry-Team “Organometallics:
Materials and Catalysis”, Campus de Beaulieu, 35042 Rennes
Cedex, France
| | - Stéphane Labat
- Institut
des Sciences Analytiques
et de Physico-Chimie pour l’Environnement et les Matériaux
(UMR 5254), Equipe Chimie Physique, Université de Pau et des Pays de l’Adour, Hélioparc,
2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Karinne Miqueu
- Institut
des Sciences Analytiques
et de Physico-Chimie pour l’Environnement et les Matériaux
(UMR 5254), Equipe Chimie Physique, Université de Pau et des Pays de l’Adour, Hélioparc,
2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Jean-Marc Sotiropoulos
- Institut
des Sciences Analytiques
et de Physico-Chimie pour l’Environnement et les Matériaux
(UMR 5254), Equipe Chimie Physique, Université de Pau et des Pays de l’Adour, Hélioparc,
2 Avenue du Président Angot, 64053 Pau Cedex 09, France
| | - Rémy Brousses
- CNRS, LCC (Laboratoire de Chimie de Coordination),
205 route de Narbonne,
31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Noël Lugan
- CNRS, LCC (Laboratoire de Chimie de Coordination),
205 route de Narbonne,
31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
| | - Guy Lavigne
- CNRS, LCC (Laboratoire de Chimie de Coordination),
205 route de Narbonne,
31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, 31077 Toulouse, France
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44
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Demir S, Gökçe Y, Kaloğlu N, Sortais JB, Darcel C, Özdemir İ. Synthesis of new iron-NHC complexes as catalysts for hydrosilylation reactions. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.3006] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Serpil Demir
- Department of Chemistry, Faculty of Science and Art; Inönü University; 44280 Malatya Turkey
| | - Yasemin Gökçe
- Department of Chemistry, Faculty of Science and Art; Inönü University; 44280 Malatya Turkey
| | - Nazan Kaloğlu
- Department of Chemistry, Faculty of Science and Art; Inönü University; 44280 Malatya Turkey
| | - Jean-Baptiste Sortais
- Centre of Catalysis and Green Chemistry, Institut des Sciences Chimiques de Rennes; Université de Rennes 1 (UMR 6226 CNRS); 35042 Rennes Cedex France
| | - Christophe Darcel
- Centre of Catalysis and Green Chemistry, Institut des Sciences Chimiques de Rennes; Université de Rennes 1 (UMR 6226 CNRS); 35042 Rennes Cedex France
| | - İsmail Özdemir
- Department of Chemistry, Faculty of Science and Art; Inönü University; 44280 Malatya Turkey
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45
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Pranckevicius C, Stephan DW. Three-Coordinate, Cyclic Bent Allene Iron Complexes. Organometallics 2013. [DOI: 10.1021/om400166t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
| | - Douglas W. Stephan
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
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46
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Warratz S, Postigo L, Royo B. Direct Synthesis of Iron(0) N-Heterocyclic Carbene Complexes by Using Fe3(CO)12 and Their Application in Reduction of Carbonyl Groups. Organometallics 2013. [DOI: 10.1021/om3012085] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Svenja Warratz
- Instituto de Tecnologia Química
e Biológica, Universidade Nova de Lisboa, Avenida da República,
EAN, 2780-157 Oeiras, Portugal
| | - Lorena Postigo
- Instituto de Tecnologia Química
e Biológica, Universidade Nova de Lisboa, Avenida da República,
EAN, 2780-157 Oeiras, Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química
e Biológica, Universidade Nova de Lisboa, Avenida da República,
EAN, 2780-157 Oeiras, Portugal
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47
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Wu J, Dai W, Farnaby JH, Hazari N, Le Roy JJ, Mereacre V, Murugesu M, Powell AK, Takase MK. Synthesis and catalytic activity of iron complexes with bidentate NHC ligands. Dalton Trans 2013; 42:7404-13. [DOI: 10.1039/c3dt32551b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Danopoulos AA, Braunstein P. Mono-N-heterocyclic carbene amido and alkyl complexes. Cobalt-mediated C–H activation and C–C coupling reactions involving benzyl ligands on a putative 3-coordinate intermediate. Dalton Trans 2013; 42:7276-80. [DOI: 10.1039/c3dt50197c] [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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49
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Przyojski JA, Arman HD, Tonzetich ZJ. NHC Complexes of Cobalt(II) Relevant to Catalytic C–C Coupling Reactions. Organometallics 2012. [DOI: 10.1021/om3010756] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jacob A. Przyojski
- Department of Chemistry, University of Texas at San Antonio,
San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio,
San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department of Chemistry, University of Texas at San Antonio,
San Antonio, Texas 78249, United States
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50
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Wang X, Mo Z, Xiao J, Deng L. Monomeric Bis(anilido)iron(II) Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Characterization, and Redox Reactivity toward Aryl Halides. Inorg Chem 2012; 52:59-65. [DOI: 10.1021/ic301894e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xiaojie Wang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, P.
R. China, 200032
| | - Zhenbo Mo
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, P.
R. China, 200032
| | - Jie Xiao
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, P.
R. China, 200032
| | - Liang Deng
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, P.
R. China, 200032
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