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Perutz RN, Sabo‐Etienne S, Weller AS. Metathesis by Partner Interchange in σ‐Bond Ligands: Expanding Applications of the σ‐CAM Mechanism. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Sylviane Sabo‐Etienne
- CNRS LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
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2
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Perutz RN, Sabo-Etienne S, Weller AS. Metathesis by Partner Interchange in σ-Bond Ligands: Expanding Applications of the σ-CAM Mechanism. Angew Chem Int Ed Engl 2021; 61:e202111462. [PMID: 34694734 PMCID: PMC9299125 DOI: 10.1002/anie.202111462] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/13/2022]
Abstract
In 2007 two of us defined the σ‐Complex Assisted Metathesis mechanism (Perutz and Sabo‐Etienne, Angew. Chem. Int. Ed. 2007, 46, 2578–2592), that is, the σ‐CAM concept. This new approach to reaction mechanisms brought together metathesis reactions involving the formation of a variety of metal–element bonds through partner‐interchange of σ‐bond complexes. The key concept that defines a σ‐CAM process is a single transition state for metathesis that is connected by two intermediates that are σ‐bond complexes while the oxidation state of the metal remains constant in precursor, intermediates and product. This mechanism is appropriate in situations where σ‐bond complexes have been isolated or computed as well‐defined minima. Unlike several other mechanisms, it does not define the nature of the transition state. In this review, we highlight advances in the characterization and dynamic rearrangements of σ‐bond complexes, most notably alkane and zincane complexes, but also different geometries of silane and borane complexes. We set out a selection of catalytic and stoichiometric examples of the σ‐CAM mechanism that are supported by strong experimental and/or computational evidence. We then draw on these examples to demonstrate that the scope of the σ‐CAM mechanism has expanded to classes of reaction not envisaged in 2007 (additional σ‐bond ligands, agostic complexes, sp2‐carbon, surfaces). Finally, we provide a critical comparison to alternative mechanisms for metathesis of metal–element bonds.
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Affiliation(s)
- Robin N Perutz
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Sylviane Sabo-Etienne
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077, Toulouse Cedex 4, France
| | - Andrew S Weller
- Department of Chemistry, University of York, York, YO10 5DD, UK
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3
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Lin X, Wu W, Mo Y. A theoretical perspective of the agostic effect in early transition metal compounds. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213401] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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4
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Xu C, Li G, Etienne M, Leng X, Chen Y. α-C–C agostic interactions and C–H bond activation in scandium cyclopropyl complexes. Inorg Chem Front 2020. [DOI: 10.1039/d0qi01163k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Electron deficient scandium cyclopropyl complexes have been synthesized and fully characterized for the first time, and a combination of solid XRD, solution NMR and theoretical studies well demonstrated the α-C–C agostic interactions in the complexes.
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Affiliation(s)
- Cheng Xu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Guangyu Li
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Michel Etienne
- LCC-CNRS
- Université de Toulouse
- CNRS
- UPS
- 31077 Toulouse Cedex 4
| | - Xuebing Leng
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
| | - Yaofeng Chen
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Shanghai 200032
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Dufrois Q, Mallet‐Ladeira S, Dinoi C, Etienne M. Cyclopropylmagnesium Scorpionates: A Missing Member of the Series with Both Staggered and Eclipsed Rotamers in the Crystal. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Quentin Dufrois
- Laboratoire de Chimie de Coordination du CNRS (LCC) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse UPS, INPT, LCC 31077 France
| | - Sonia Mallet‐Ladeira
- Institut de Chimie de Toulouse (FR 2599) Université Paul Sabatier 118 route de Narbonne 31062 France
| | - Chiara Dinoi
- Laboratoire de Chimie de Coordination du CNRS (LCC) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse UPS, INPT, LCC 31077 France
| | - Michel Etienne
- Laboratoire de Chimie de Coordination du CNRS (LCC) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse UPS, INPT, LCC 31077 France
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6
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2018; 57:1786-1791. [PMID: 29205730 DOI: 10.1002/anie.201711426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 11/10/2022]
Abstract
Understanding and controlling the aggregation state is germane to alkyllithium chemistry. Lewis base-free alkyllithium compounds normally form tetrahedral tetramers or octahedral hexamers in the solid state with the lithium cations being three-coordinate. We report that the unsupported cyclopropyl derivative 1-(trimethylsilyl)cyclopropyllithium [{μ-c-C(SiMe3 )C2 H4 }Li]4 (1), synthesized by the reduction of 1-(phenylthio)-1-(trimethylsilyl)cyclopropane, crystallizes as a tetramer in the space group I-4 with the two-coordinate lithium atoms forming a square. CC agostic interactions complete the coordination sphere around each lithium. The aggregate is preserved in hydrocarbon solution. Furthermore, CC agostic interactions compete intra- and intermolecularly with Lewis base donation as in the unsaturated dimer of 1-(phenylthio)cyclopropyllithium [Li(thf)2 {μ-c-C(SPh)C2 H4 }2 Li (thf)] (3) which is also fully characterized.
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Affiliation(s)
- Quentin Dufrois
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, LCC, 31077, Toulouse Cedex 4, France
| | - Jean-Claude Daran
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, LCC, 31077, Toulouse Cedex 4, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, LCC, 31077, Toulouse Cedex 4, France
| | - Chiara Dinoi
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, LCC, 31077, Toulouse Cedex 4, France.,Current address: LPCNO INSA, 135 Avenue de Rangueil, 31077, Toulouse Cedex 4, France
| | - Michel Etienne
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, LCC, 31077, Toulouse Cedex 4, France
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7
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Dufrois Q, Daran JC, Vendier L, Dinoi C, Etienne M. Triangles and Squares for a Unique Molecular Crystal Structure: Unsupported Two-Coordinate Lithium Cations and CC Agostic Interactions in Cyclopropyllithium Derivatives. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201711426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Quentin Dufrois
- Laboratoire de Chimie de Coordination du CNRS (LCC); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse, UPS, INPT, LCC; 31077 Toulouse Cedex 4 France
| | - Jean-Claude Daran
- Laboratoire de Chimie de Coordination du CNRS (LCC); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse, UPS, INPT, LCC; 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS (LCC); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse, UPS, INPT, LCC; 31077 Toulouse Cedex 4 France
| | - Chiara Dinoi
- Laboratoire de Chimie de Coordination du CNRS (LCC); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse, UPS, INPT, LCC; 31077 Toulouse Cedex 4 France
- Current address: LPCNO INSA; 135 Avenue de Rangueil 31077 Toulouse Cedex 4 France
| | - Michel Etienne
- Laboratoire de Chimie de Coordination du CNRS (LCC); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse, UPS, INPT, LCC; 31077 Toulouse Cedex 4 France
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Affiliation(s)
- Benjamin G. Harvey
- US Navy Naval Air Warfare Center Weapons Division (NAWCWD) Research Department Chemistry Division 93555 China Lake California USA
| | - Richard D. Ernst
- Inorganic Chemistry Department of Chemistry University of Utah 84112 Salt Lake City Utah USA
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Dufrois Q, Vendier L, Etienne M. α-CC agostic structures and aggregation diversity in cyclopropyllithium derivatives. Chem Commun (Camb) 2016; 52:6781-4. [PMID: 27100363 DOI: 10.1039/c6cc02638a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In the presence of thf or tmeda and depending on experimental conditions, 1-phenylcyclopropyllithium may be crystallised as either dinuclear or tetranuclear species both exhibiting α-CC agostic distortions towards tricoordinate lithium cations. In thf solution, deaggregation of the dinuclear complex takes place to yield a well-defined mononuclear species [Li(thf)3(c-CPhC2H4)].
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Affiliation(s)
- Quentin Dufrois
- Laboratoire de Chimie de Coordination du CNRS (LCC), 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France.
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Rekhroukh F, Estévez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Experimental and Theoretical Evidence for an Agostic Interaction in a Gold(III) Complex. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511111] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Laura Estévez
- 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
- Departamento de Química Física; Universidade de Vigo, Facultade de Química Lagoas-Marcosende s/n; 36310 Vigo, Galicia Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241); 205 Route de Narbonne 31077 Toulouse 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
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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11
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Rekhroukh F, Estévez L, Bijani C, Miqueu K, Amgoune A, Bourissou D. Experimental and Theoretical Evidence for an Agostic Interaction in a Gold(III) Complex. Angew Chem Int Ed Engl 2016; 55:3414-8. [DOI: 10.1002/anie.201511111] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Indexed: 01/30/2023]
Affiliation(s)
- Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Laura Estévez
- 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
- Departamento de Química Física; Universidade de Vigo, Facultade de Química Lagoas-Marcosende s/n; 36310 Vigo, Galicia Spain
| | - Christian Bijani
- Laboratoire de Chimie de Coordination (CNRS UPR 8241); 205 Route de Narbonne 31077 Toulouse 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
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/ CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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Pugh T, Kerridge A, Layfield RA. Yttrium complexes of arsine, arsenide, and arsinidene ligands. Angew Chem Int Ed Engl 2015; 54:4255-8. [PMID: 25655652 PMCID: PMC4672686 DOI: 10.1002/anie.201500173] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Indexed: 11/22/2022]
Abstract
Deprotonation of the yttrium-arsine complex [Cp'3Y{As(H)2Mes}] (1) (Cp'=η(5)-C5H4Me, Mes=mesityl) by nBuLi produces the μ-arsenide complex [{Cp'2Y[μ-As(H)Mes]}3] (2). Deprotonation of the As-H bonds in 2 by nBuLi produces [Li(thf)4]2[{Cp'2Y(μ3-AsMes)}3Li], [Li(thf)4]2[3], in which the dianion 3 contains the first example of an arsinidene ligand in rare-earth metal chemistry. The molecular structures of the arsine, arsenide, and arsinidene complexes are described, and the yttrium-arsenic bonding is analyzed by density functional theory.
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Affiliation(s)
- Thomas Pugh
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL (UK)
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Pugh T, Kerridge A, Layfield RA. Yttrium Complexes of Arsine, Arsenide, and Arsinidene Ligands. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500173] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Hu Y, Romero N, Dinoi C, Vendier L, Mallet-Ladeira S, McGrady JE, Locati A, Maseras F, Etienne M. β-H Abstraction/1,3-CH Bond Addition as a Mechanism for the Activation of CH Bonds at Early Transition Metal Centers. Organometallics 2014. [DOI: 10.1021/om501056b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yimu Hu
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France
| | - Nuria Romero
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France
| | - Chiara Dinoi
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France
| | - Laure Vendier
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France
| | - Sonia Mallet-Ladeira
- Institut
de Chimie de Toulouse (FR 2599), Université Paul Sabatier, 118, route
de Narbonne, F-31062 Toulouse Cedex 9, France
| | - John E. McGrady
- Department
of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Abel Locati
- Institute of Chemical Research of Catalonia (ICIQ), Av. Paisos Catalans, 16, 43007 Tarragona, Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ), Av. Paisos Catalans, 16, 43007 Tarragona, Spain
- Departament
de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Michel Etienne
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse Cedex 4, France
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15
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Edelmann FT. Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2013.11.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Etienne M, Weller AS. Intramolecular C–C agostic complexes: C–C sigma interactions by another name. Chem Soc Rev 2014; 43:242-59. [DOI: 10.1039/c3cs60295h] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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The influence of phosphine cone angle on the synthesis and structures of [Rh(PR3)(Binor–S)]+ complexes that show C–C sigma interactions. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.09.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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