1
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Talbi F, Castro L, Kias F, Elkechai A, Boucekkine A, Ephritikhine M. Theoretical investigation of the reactivity of bispentamethylcyclopentadienyl uranium(IV) bisthiolate complexes with the heteroallene molecules CS2 and CO2. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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2
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Kelly RP, Toniolo D, Tirani FF, Maron L, Mazzanti M. A tetranuclear samarium(ii) inverse sandwich from direct reduction of toluene by a samarium(ii) siloxide. Chem Commun (Camb) 2018; 54:10268-10271. [DOI: 10.1039/c8cc04169e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The dinuclear SmII complex [Sm2L4(dme)] (L = OSi(OtBu)3) reacts slowly with toluene, resulting in the isolation of the triple decker arene-bridged SmII complex [{Sm2L3}2(μ-η6:η6-C7H8)] in 44% yield. This reactivity provides the first example of an unambiguous arene reduction by an isolated SmII species.
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Affiliation(s)
- Rory P. Kelly
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Davide Toniolo
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Farzaneh Fadaei Tirani
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Laurent Maron
- Université de Toulouse et CNRS INSA
- UPS
- CNRS
- UMR 5215
- LPCNO
| | - Marinella Mazzanti
- Institut des Sciences et Ingénierie Chimiques Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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3
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Kefalidis CE, Castro L, Perrin L, Rosal ID, Maron L. New perspectives in organolanthanide chemistry from redox to bond metathesis: insights from theory. Chem Soc Rev 2016; 45:2516-43. [DOI: 10.1039/c5cs00907c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A fifteen year contribution of computational studies carried out in close synergy with experiments is summarized.
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4
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On the Dehydrocoupling of Alkenylacetylenes Mediated by Various Samarocene Complexes: A Charming Story of Metal Cooperativity Revealing a Novel Dual Metal σ-Bond Metathesis Type of Mechanism (DM|σ-BM). INORGANICS 2015. [DOI: 10.3390/inorganics3040573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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5
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Kefalidis CE, Essafi S, Perrin L, Maron L. Qualitative Estimation of the Single-Electron Transfer Step Energetics Mediated by Samarium(II) Complexes: A “SOMO–LUMO Gap” Approach. Inorg Chem 2014; 53:3427-33. [DOI: 10.1021/ic402837n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Christos E. Kefalidis
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
| | - Stéphanie Essafi
- School of Chemistry and
Centre for Computational Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Lionel Perrin
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
| | - Laurent Maron
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
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6
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Castro L, Kefalidis CE, McKay D, Essafi S, Perrin L, Maron L. Theoretical treatment of one electron redox transformation of a small molecule using f-element complexes. Dalton Trans 2014; 43:12124-34. [DOI: 10.1039/c4dt01002g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations can provide useful insights into low-valent f-element single electron transfer reactivity.
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Affiliation(s)
| | | | - David McKay
- Institute of Chemical Sciences
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh, UK
| | - Stéphanie Essafi
- School of Chemistry and Centre for Computational Chemistry
- University of Bristol
- Bristol BS8 1TS, UK
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7
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Tsoureas N, Castro L, Kilpatrick AFR, Cloke FGN, Maron L. Controlling selectivity in the reductive activation of CO2 by mixed sandwich uranium(iii) complexes. Chem Sci 2014. [DOI: 10.1039/c4sc01401d] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The uranium complexes [U(η8-C8H6(1,4-SiMe3)2)(η5-CpMe4R)] can be tuned to selectively reduce CO2, giving U(iv) complexes incorporating bridging oxo, carbonate, or oxalate groups.
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Affiliation(s)
- Nikolaos Tsoureas
- Department of Chemsitry
- School of Life Sciences
- University of Sussex
- Brighton BN1 9QJ, UK
| | - Ludovic Castro
- LPCNO
- Université de Toulouse
- INSA Toulouse
- 31077 Toulouse, France
| | | | - F. Geoffey N. Cloke
- Department of Chemsitry
- School of Life Sciences
- University of Sussex
- Brighton BN1 9QJ, UK
| | - Laurent Maron
- LPCNO
- Université de Toulouse
- INSA Toulouse
- 31077 Toulouse, France
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8
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Kefalidis CE, Perrin L, Maron L. Preliminary Theoretical Insights into SmI2-Mediated Reactions: Activation of Ketones in THF. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300288] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2011. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.12.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Labouille S, Clavaguéra C, Nief F. Theoretical Insights into the Nature of Divalent Lanthanide–Ligand Interactions. Organometallics 2012. [DOI: 10.1021/om301018u] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stéphanie Labouille
- Laboratoire
Hétéroéléments et Coordination and ‡Laboratoire des
Mécanismes Réactionnels, Department of
Chemistry, Ecole Polytechnique, CNRS, 91128
Palaiseau, France
| | - Carine Clavaguéra
- Laboratoire
Hétéroéléments et Coordination and ‡Laboratoire des
Mécanismes Réactionnels, Department of
Chemistry, Ecole Polytechnique, CNRS, 91128
Palaiseau, France
| | - François Nief
- Laboratoire
Hétéroéléments et Coordination and ‡Laboratoire des
Mécanismes Réactionnels, Department of
Chemistry, Ecole Polytechnique, CNRS, 91128
Palaiseau, France
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11
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Szostak M, Procter DJ. Jenseits von Samariumdiiodid: Perspektiven für Lanthanoid(II)-vermittelte Reduktionen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201065] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Szostak M, Procter DJ. Beyond Samarium Diiodide: Vistas in Reductive Chemistry Mediated by Lanthanides(II). Angew Chem Int Ed Engl 2012; 51:9238-56. [DOI: 10.1002/anie.201201065] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 04/03/2012] [Indexed: 11/11/2022]
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13
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Kosog B, Kefalidis CE, Heinemann FW, Maron L, Meyer K. Uranium(III)-Mediated C–C-Coupling of Terminal Alkynes: Formation of Dinuclear Uranium(IV) Vinyl Complexes. J Am Chem Soc 2012; 134:12792-7. [DOI: 10.1021/ja3047393] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Boris Kosog
- Department of Chemistry and
Pharmacy, Inorganic Chemistry, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Christos E. Kefalidis
- CNRS and INSA, UPS, LPCNO, Université de Toulouse, 135 Avenue de Rangueil,
F-31077 Toulouse, France
| | - Frank W. Heinemann
- Department of Chemistry and
Pharmacy, Inorganic Chemistry, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Laurent Maron
- CNRS and INSA, UPS, LPCNO, Université de Toulouse, 135 Avenue de Rangueil,
F-31077 Toulouse, France
| | - Karsten Meyer
- Department of Chemistry and
Pharmacy, Inorganic Chemistry, University of Erlangen-Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
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14
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Spontaneous reduction and C-H borylation of arenes mediated by uranium(III) disproportionation. Nat Chem 2012; 4:668-74. [PMID: 22824900 DOI: 10.1038/nchem.1392] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 05/24/2012] [Indexed: 11/09/2022]
Abstract
Transition-metal-arene complexes such as bis(benzene)chromium Cr(η(6)-C(6)H(6))(2) are historically important to d-orbital bonding theory and have modern importance in organic synthesis, catalysis and organic spintronics. In investigations of f-block chemistry, however, arenes are invariably used as solvents rather than ligands. Here, we show that simple uranium complexes UX(3) (X = aryloxide, amide) spontaneously disproportionate, transferring an electron and X-ligand, allowing the resulting UX(2) to bind and reduce arenes, forming inverse sandwich molecules [X(2)U(µ-η(6):η(6)-arene)UX(2)] and a UX(4) by-product. Calculations and kinetic studies suggest a 'cooperative small-molecule activation' mechanism involving spontaneous arene reduction as an X-ligand is transferred. These mild reaction conditions allow functionalized arenes such as arylsilanes to be incorporated. The bulky UX(3) are also inert to reagents such as boranes that would react with the traditional harsh reaction conditions, allowing the development of a new in situ arene C-H bond functionalization methodology converting C-H to C-B bonds.
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15
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Labouille S, Nief F, Le Goff XF, Maron L, Kindra DR, Houghton HL, Ziller JW, Evans WJ. Ligand Influence on the Redox Chemistry of Organosamarium Complexes: Experimental and Theoretical Studies of the Reactions of (C5Me5)2Sm(THF)2 and (C4Me4P)2Sm with Pyridine and Acridine. Organometallics 2012. [DOI: 10.1021/om300573z] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Stéphanie Labouille
- Laboratoire Hétéroéléments
et Coordination, CNRS, Ecole Polytechnique, Route de Saclay, F-91128 Palaiseau, France
| | - François Nief
- Laboratoire Hétéroéléments
et Coordination, CNRS, Ecole Polytechnique, Route de Saclay, F-91128 Palaiseau, France
| | - Xavier-Frédéric Le Goff
- Laboratoire Hétéroéléments
et Coordination, CNRS, Ecole Polytechnique, Route de Saclay, F-91128 Palaiseau, France
| | - Laurent Maron
- University of Toulouse, INSA, UPS, LPCNO, 135 Avenue de Rangueil, F-31077 Toulouse, France,
and CNRS, LPCNO UMR 5215, F-31077 Toulouse,
France
| | - Douglas R. Kindra
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
| | - Heidi L. Houghton
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025,
United States
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16
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Prikhod'ko A, Walter O, Zevaco TA, Garcia-Rodriguez J, Mouhtady O, Py S. Synthesis of α-Amino Acids through Samarium(II) Iodide Promoted Reductive Coupling of Nitrones with CO2. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200440] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Castro L, Labouille S, Kindra DR, Ziller JW, Nief F, Evans WJ, Maron L. Insights into the mechanism of reaction of [(C5Me5)2Sm(II)(thf)2] with CO2 and COS by DFT studies. Chemistry 2012; 18:7886-95. [PMID: 22573516 DOI: 10.1002/chem.201103192] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Indexed: 11/05/2022]
Abstract
Reaction mechanisms for the oxidative reactions of CO(2) and COS with [(C(5)Me(5))(2)Sm] have been investigated by means of DFT methods. The experimental formation of oxalate and dithiocarbonate complexes is explained. Their formation involve the samarium(III) bimetallic complexes [(C(5)Me(5))(2)Sm-CO(2)-Sm(C(5)Me(5))(2)] and [(C(5)Me(5))(2)Sm-COS-Sm(C(5)Me(5))(2)] as intermediates, respectively, ruling out radical coupling for the formation of the oxalate complex.
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Affiliation(s)
- Ludovic Castro
- Université de Toulouse, INSA, UPS, LPCNO, 135 avenue de Rangueil, 31077 Toulouse, France
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18
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Castro L, Maron L. Insight into the Reaction Mechanisms of (MeC5H4)3U with Isoelectronic Heteroallenes CS2, COS, PhN3, and PhNCO by DFT Studies: A Unique Pathway that Involves Bimetallic Complexes. Chemistry 2012; 18:6610-5. [DOI: 10.1002/chem.201103754] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Indexed: 11/10/2022]
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19
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Camp C, Guidal V, Biswas B, Pécaut J, Dubois L, Mazzanti M. Multielectron redox chemistry of lanthanide Schiff-base complexes. Chem Sci 2012. [DOI: 10.1039/c2sc20476b] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have developed a new way to introduce redox events at lanthanide centers which should lead to further expansion of the reductive chemistry of lanthanides.
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Affiliation(s)
- Clément Camp
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Valentin Guidal
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Biplab Biswas
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Jacques Pécaut
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Lionel Dubois
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
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McKay D, Frey ASP, Green JC, Cloke FGN, Maron L. Computational insight into the reductive oligomerisation of CO at uranium(iii) mixed-sandwich complexes. Chem Commun (Camb) 2012; 48:4118-20. [DOI: 10.1039/c2cc30864a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Iftner C, Bonnet F, Nief F, Visseaux M, Maron L. Mechanistic Insights of the Initiation Process of the Ring-Opening Polymerization of ε-Caprolactone by Divalent Sm(BH4)2(THF)2 with DFT: Concerted or Oxidative Reaction? Organometallics 2011. [DOI: 10.1021/om200512g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christophe Iftner
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), UMR 5215, Université de Toulouse-CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse Cedex 4, France
| | - Fanny Bonnet
- Université Lille Nord de France, F-59000 Lille, France
- USTL, UCCS, CNRS, F-59650 Villeneuve d’Ascq, France
- UMR 8181, F-59650 Villeneuve d’Ascq, France
| | - François Nief
- Laboratoire Hétéroéléments et Coordination, CNRS, Ecole Polytechnique, Route de Saclay, F-91128 Palaiseau, France
| | - Marc Visseaux
- Université Lille Nord de France, F-59000 Lille, France
- USTL, UCCS, CNRS, F-59650 Villeneuve d’Ascq, France
- UMR 8181, F-59650 Villeneuve d’Ascq, France
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nano-objets (LPCNO), UMR 5215, Université de Toulouse-CNRS, INSA, UPS, 135 Avenue de Rangueil, 31077 Toulouse Cedex 4, France
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