1
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Brackbill IJ, Rajeshkumar T, Douair I, Maron L, Boreen MA, Bergman RG, Arnold J. Covalency-Driven Differences in the Hydrogenation Chemistry of Lanthanide- and Actinide-Based Frustrated Lewis Pairs. J Am Chem Soc 2024; 146:21932-21947. [PMID: 39051942 DOI: 10.1021/jacs.4c06777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
The electronic organization of Frustrated Lewis Pairs (FLPs) allows them to activate strong bonds in mechanisms that are usually free of redox events at the Lewis acidic site. The unique 6d/5f manifold of uranium could serve as an interesting FLP acceptor site, but to date FLP-like catalysis with actinide ions is unknown. In this paper, the catalytic, FLP-like hydrogenation reactivity of trivalent uranium complexes is explored in the presence of base-stabilized silylenes. Comparison to isoelectronic, isostructural lanthanide and thorium complexes lends insight into the electronic factors governing dihydrogen activation. Mechanistic studies of the uranium- and lanthanide-catalyzed hydrogenations are presented, including discussion of likely intermediates. Computational modeling of the f-element complexes, combined with experimental comparison to p-block Lewis acids, elucidates the relevance of steric hindrance to productive reactivity with dihydrogen. Consideration of the complete experimental and theoretical evidence provides a clear picture of the electronic and steric factors governing dihydrogen activation by these FLPs.
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Affiliation(s)
- I Joseph Brackbill
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, United States
| | - Thayalan Rajeshkumar
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Iskander Douair
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Michael A Boreen
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, United States
| | - Robert G Bergman
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - John Arnold
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, United States
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2
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Zhu H, Hanusch F, Inoue S. Facile Bond Activation of Small Molecules by an Acyclic Imino(silyl)silylene. Isr J Chem 2023. [DOI: 10.1002/ijch.202300012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Huaiyuan Zhu
- School of Natural Sciences Department of Chemistry Catalysis Research Center and Institute of Silicon Chemistry Technische Universität München Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Franziska Hanusch
- School of Natural Sciences Department of Chemistry Catalysis Research Center and Institute of Silicon Chemistry Technische Universität München Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Shigeyoshi Inoue
- School of Natural Sciences Department of Chemistry Catalysis Research Center and Institute of Silicon Chemistry Technische Universität München Lichtenbergstraße 4 85748 Garching bei München Germany
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3
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Takahashi S, Frutos M, Baceiredo A, Madec D, Saffon‐Merceron N, Branchadell V, Kato T. Synthesis, Characterization and Reactivity of a σ‐Donating Ni
0
‐Stabilized Silyliumylidene Ion. Angew Chem Int Ed Engl 2022; 61:e202208202. [PMID: 35880424 PMCID: PMC9541621 DOI: 10.1002/anie.202208202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Indexed: 11/09/2022]
Abstract
The synthesis of a silyliumylidene cation complex 2 stabilized by a Ni0‐based donating ligand is reported. Experimental and theoretical studies demonstrate that the highly electrophilic SiII center is stabilized by a dative Ni→Si σ‐interaction and π‐donations from the amino‐ and Ni‐moieties. Due to the energetically close frontier orbitals localized on the Si and Ni atoms, complex 2 presents a competitive reactivity at Si and Ni sites.
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Affiliation(s)
- Shintaro Takahashi
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France) (Equipe—ECOIH
| | - María Frutos
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France) (Equipe—ECOIH
| | - Antoine Baceiredo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France) (Equipe—ECOIH
| | - David Madec
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France) (Equipe—ECOIH
| | - Nathalie Saffon‐Merceron
- Institut de Chimie de Toulouse (FR 2599) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
| | - Vicenç Branchadell
- Departament de Química Universitat Autònoma de Barcelona 08193 Bellaterra Spain
| | - Tsuyoshi Kato
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France) (Equipe—ECOIH
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4
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Takahashi S, Frutos M, Baceiredo A, Madec D, Saffon-Merceron N, Branchadell V, Kato T. Synthesis, Characterization and Reactivity of a σ‐Donating Ni(0)‐Stabilized Silyliumylidene Ion. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shintaro Takahashi
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier LHFA FRANCE
| | - María Frutos
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier LHFA FRANCE
| | - Antoine Baceiredo
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier LHFA FRANCE
| | - David Madec
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier LHFA FRANCE
| | - Nathalie Saffon-Merceron
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier Institut de Chimie de Toulouse FRANCE
| | - Vicenç Branchadell
- Universitat Autònoma de Barcelona: Universitat Autonoma de Barcelona Chemistry SPAIN
| | - Tsuyoshi Kato
- Universite de Toulouse 3: Universite Toulouse III Paul Sabatier Laboratoire de Hétérochimie Fondamentale et Appliquée UMR5069 118, route de NarbonneCedex 9 31062 Toulouse FRANCE
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5
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Gour K, Bisai MK, Sen SS. Hypersilyl Substituent in Heavier Low‐valent Group 14 Chemistry. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kritika Gour
- CSIR-NCL: National Chemical Laboratory CSIR Inorganic Chemistry and Catalysis INDIA
| | - Milan Kumar Bisai
- CSIR-NCL: National Chemical Laboratory CSIR Inorganic Chemistry and Catalysis INDIA
| | - Sakya S. Sen
- National Chemical Laboraotry Catalysis Division Dr. Homi Bhabha RoadPashan 411008 Pune INDIA
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6
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Keuter J, Hepp A, Massolle A, Neugebauer J, Mück‐Lichtenfeld C, Lips F. Synthese und Reaktivität eines Neutralen Homozyklischen Silylens. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jan Keuter
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
| | - Anja Massolle
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut und Center for Multiscale Theory and Computation Corrensstraße 36 48149 Münster Deutschland
| | - Johannes Neugebauer
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut und Center for Multiscale Theory and Computation Corrensstraße 36 48149 Münster Deutschland
| | - Christian Mück‐Lichtenfeld
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut und Center for Multiscale Theory and Computation Corrensstraße 36 48149 Münster Deutschland
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster Institut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
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7
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Luecke M, Giarrana L, Kostenko A, Gensch T, Yao S, Driess M. A Striking Mode of Activation of Carbon Disulfide with a Cooperative Bis(silylene). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marcel‐Philip Luecke
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
| | - Luisa Giarrana
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
| | - Arseni Kostenko
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
| | - Tobias Gensch
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
| | - Shenglai Yao
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin Strasse des 17. Juni 115, Sekr. C2 10623 Berlin Germany
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8
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Keuter J, Hepp A, Massolle A, Neugebauer J, Mück-Lichtenfeld C, Lips F. Synthesis and Reactivity of a Neutral Homocyclic Silylene. Angew Chem Int Ed Engl 2021; 61:e202114485. [PMID: 34797603 PMCID: PMC9299817 DOI: 10.1002/anie.202114485] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Indexed: 12/31/2022]
Abstract
Isolation of the neutral homocyclic silylene 2 is possible via amine ligand abstraction with potassium graphite (KC8) and subsequent reaction with SiMe3Cl from a bicyclic silicon(I) amide J. This reaction proceeds via an anionic homoaromatic silicon ring compound 1 as an intermediate. The twofold‐coordinated silicon atom in the homocyclic silylene 2 is stabilized by an allyl‐type π‐electron delocalization. 2 reacts in an oxidative addition with two equivalents of MeOH and in cycloadditions with ethene, phenylacetylene, diphenylacetylene and with 2,3‐dimethyl‐1,3‐butadiene to afford novel functionalized ring compounds.
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Affiliation(s)
- Jan Keuter
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Anja Massolle
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Johannes Neugebauer
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Christian Mück-Lichtenfeld
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
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9
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Luecke MP, Giarrana L, Kostenko A, Gensch T, Yao S, Driess M. A Striking Mode of Activation of Carbon Disulfide with a Cooperative Bis(silylene). Angew Chem Int Ed Engl 2021; 61:e202110398. [PMID: 34670015 PMCID: PMC9298776 DOI: 10.1002/anie.202110398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Indexed: 11/10/2022]
Abstract
The reactivity of the 1,4-substituted bis(silylenyl)terphenylene 1, 1,4-[ortho-(LSi)C6 H4 ]2 C6 H4 , (L=RC(NtBu)2 , R=Ph, Mes) towards CS2 is reported. It results in a dearomatization of the phenylene ring, affording the 1,3-substituted cyclohexadiene derivative 2. According to DFT calculations, a transient silene containing a Si=C bond capable of π(C=C) addition at the aromatic phenylene ring is a key intermediate. In contrast, addition of CS2 to the biphenyl-substituted mono-silylene ortho-(LSi)C6 H4 -C6 H5 3 leaves the aromatic π-system intact and forms, in a [1+2] cycloaddition reaction, the corresponding thiasilirane 4 with a three-membered SiSC ring. Further experimental studies led to the isolation of the novel mesoionic five-membered Si2 S2 C heterocycle 6, which reacts with CS2 under C-C bond formation. All isolated new compounds were fully characterized and their molecular structures determined by single-crystal X-ray diffraction analyses.
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Affiliation(s)
- Marcel-Philip Luecke
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
| | - Luisa Giarrana
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
| | - Arseni Kostenko
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
| | - Tobias Gensch
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
| | - Shenglai Yao
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität Berlin, Strasse des 17. Juni 115, Sekr. C2, 10623, Berlin, Germany
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10
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Bisai MK, Das T, Vanka K, Gonnade RG, Sen SS. Unsymmetrical sp
2
‐sp
3
Disilenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Milan Kumar Bisai
- Inorganic Chemistry and Catalysis Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Tamal Das
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Physical and Material Chemistry Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Physical and Material Chemistry Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Physical and Material Chemistry Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India
| | - Sakya S. Sen
- Inorganic Chemistry and Catalysis Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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11
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Bisai MK, Das T, Vanka K, Gonnade RG, Sen SS. Unsymmetrical sp 2 -sp 3 Disilenes. Angew Chem Int Ed Engl 2021; 60:20706-20710. [PMID: 34288335 DOI: 10.1002/anie.202107847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Indexed: 11/08/2022]
Abstract
Disilenes with differently coordinated silicon atoms are not known. Here, we have shown the high yield synthesis of a range of disilenes (2-4 and 6) upon reaction of a hypersilyl silylene PhC(NtBu)2 SiSi(SiMe3 )3 (1) with aliphatic chlorophosphines. The most striking characteristic of these disilenes is the presence of two differently coordinated Si atoms (one is three-coordinated, the other four-coordinated). The analogous reaction with Ph2 PCl did not afford the desired disilene, but, surprisingly, led to the first tetraphosphinosilane (8). DFT calculations were performed to understand the bonding in disilenes and differences in reactivity of the complexes.
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Affiliation(s)
- Milan Kumar Bisai
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Tamal Das
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Rajesh G Gonnade
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Sakya S Sen
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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12
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Roy MMD, Baird SR, Dornsiepen E, Paul LA, Miao L, Ferguson MJ, Zhou Y, Siewert I, Rivard E. A Stable Homoleptic Divinyl Tetrelene Series. Chemistry 2021; 27:8572-8579. [PMID: 33848023 PMCID: PMC8252546 DOI: 10.1002/chem.202100969] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Indexed: 12/16/2022]
Abstract
The synthesis of the new bulky vinyllithium reagent (Me IPr=CH)Li, (Me IPr=[(MeCNDipp)2 C]; Dipp=2,6-iPr2 C6 H3 ) is reported. This vinyllithium precursor was found to act as a general source of the anionic 2σ, 2π-electron donor ligand [Me IPr=CH]- . Furthermore, a high-yielding route to the degradation-resistant SiII precursor Me IPr⋅SiBr2 is presented. The efficacy of (Me IPr=CH)Li in synthesis was demonstrated by the generation of a complete inorganic divinyltetrelene series (Me IPrCH)2 E: (E=Si to Pb). (Me IPrCH)2 Si: represents the first two-coordinate acyclic silylene not bound by heteroatom donors, with dual electrophilic and nucleophilic character at the SiII center noted. Cyclic voltammetry shows this electron-rich silylene to be a potent reducing agent, rivalling the reducing power of the 19-electron complex cobaltocene (Cp2 Co).
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Affiliation(s)
- Matthew M. D. Roy
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Samuel R. Baird
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Eike Dornsiepen
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Lucas A. Paul
- Universität GöttingenInstitut für Anorganische ChemieTammannstr. 437077GöttingenGermany
| | - Linkun Miao
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Michael J. Ferguson
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Yuqiao Zhou
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
| | - Inke Siewert
- Universität GöttingenInstitut für Anorganische ChemieTammannstr. 437077GöttingenGermany
| | - Eric Rivard
- Department of ChemistryUniversity of Alberta11227 Saskatchewan Dr.EdmontonAlbertaT6G 2G2Canada
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13
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Lainer T, Pillinger M, Fischer RC, Jones C, Haas M. New Strategies towards Bulky Bis(alkyl)‐ and Bis(silyl)‐ Substituted Polysilanes as Precursor Molecules for Desilylation and Dechlorination Experiments. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas Lainer
- Institute of Inorganic Chemistry Graz University of Technology Stremayrgasse 9 8010 Graz Austria
| | - Michael Pillinger
- Institute of Inorganic Chemistry Graz University of Technology Stremayrgasse 9 8010 Graz Austria
| | - Roland C. Fischer
- Institute of Inorganic Chemistry Graz University of Technology Stremayrgasse 9 8010 Graz Austria
| | - Cameron Jones
- School of Chemistry Monash University PO Box 23, Clayton VIC, 3800 Australia
| | - Michael Haas
- Institute of Inorganic Chemistry Graz University of Technology Stremayrgasse 9 8010 Graz Austria
- School of Chemistry Monash University PO Box 23, Clayton VIC, 3800 Australia
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14
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Tiessen N, Keßler M, Neumann B, Stammler H, Hoge B. Nachweis des Lewis‐amphoteren Charakters von Tris(pentafluorethyl)silanid, [Si(C
2
F
5
)
3
]
−. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Natalia Tiessen
- Universität Bielefeld Fakultät für Chemie Centrum für Molekulare Materialien Universitätsstraße 25 33615 Bielefeld Deutschland
| | - Mira Keßler
- Universität Bielefeld Fakultät für Chemie Centrum für Molekulare Materialien Universitätsstraße 25 33615 Bielefeld Deutschland
| | - Beate Neumann
- Universität Bielefeld Fakultät für Chemie Centrum für Molekulare Materialien Universitätsstraße 25 33615 Bielefeld Deutschland
| | - Hans‐Georg Stammler
- Universität Bielefeld Fakultät für Chemie Centrum für Molekulare Materialien Universitätsstraße 25 33615 Bielefeld Deutschland
| | - Berthold Hoge
- Universität Bielefeld Fakultät für Chemie Centrum für Molekulare Materialien Universitätsstraße 25 33615 Bielefeld Deutschland
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15
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Tiessen N, Keßler M, Neumann B, Stammler H, Hoge B. Evidence of the Lewis-Amphoteric Character of Tris(pentafluoroethyl)silanide, [Si(C 2 F 5 ) 3 ] . Angew Chem Int Ed Engl 2021; 60:12124-12131. [PMID: 33617080 PMCID: PMC8252080 DOI: 10.1002/anie.202016455] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/09/2021] [Indexed: 12/16/2022]
Abstract
According to a first view on the geometrical and electronic structure of the tris(pentafluoroethyl)silanide, this anion appears as a Lewis base. Quantum chemical calculations on perfluoroalkylated silanides show significantly lower HOMO and LUMO energy levels in comparison to their non-fluorinated counterparts, which implies reduced Lewis basicity and increased Lewis acidity of the [Si(C2 F5 )3 ]- ion. With these findings and a HOMO-LUMO gap of 4.80 eV similar to N-heterocyclic silylenes (NHSis), perfluoroalkyl silanides are predestined to exhibit Lewis-amphoteric character similar to silylenes. Deprotonation of Si(C2 F5 )3 H with sterically demanding phosphazene bases afforded thermally stable phosphazenium salts of the [Si(C2 F5 )3 ]- anion, which add to benzaldehyde, benzophenone, CS2 , and CO2 in various manners. This behavior also mirrors the reactivity of silylenes towards ketones as well as heterocumulenes and is rationalized by Lewis amphotericity being inherent in these silanides.
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Affiliation(s)
- Natalia Tiessen
- Universität BielefeldFakultät für ChemieCentrum für Molekulare MaterialienUniversitätsstrasse 2533615BielefeldGermany
| | - Mira Keßler
- Universität BielefeldFakultät für ChemieCentrum für Molekulare MaterialienUniversitätsstrasse 2533615BielefeldGermany
| | - Beate Neumann
- Universität BielefeldFakultät für ChemieCentrum für Molekulare MaterialienUniversitätsstrasse 2533615BielefeldGermany
| | - Hans‐Georg Stammler
- Universität BielefeldFakultät für ChemieCentrum für Molekulare MaterialienUniversitätsstrasse 2533615BielefeldGermany
| | - Berthold Hoge
- Universität BielefeldFakultät für ChemieCentrum für Molekulare MaterialienUniversitätsstrasse 2533615BielefeldGermany
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16
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Nazish M, Siddiqui MM, Kumar Sarkar S, Münch A, Legendre CM, Herbst‐Irmer R, Stalke D, Roesky HW. Synthesis and Coordination Behavior of a New Hybrid Bidentate Ligand with Phosphine and Silylene Donors. Chemistry 2021; 27:1744-1752. [PMID: 33022783 PMCID: PMC7898821 DOI: 10.1002/chem.202003513] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/17/2020] [Indexed: 01/10/2023]
Abstract
This work describes the synthesis and coordination behavior of a new mixed-donor ligand PhC(NtBu)2 SiC6 H4 PPh2 (1) containing both silylene and phosphine donor sites. Ligand 1 was synthesized from a reaction of ortho-lithiated diphenylphosphinobenzene (LiC6 H4 PPh2 ) with chlorosilylene (PhC(NtBu)2 SiCl). Treatment of 1 with Se and GeCl2 resulted in SiIV compounds 2 and 3 by selective oxidation of the silylene donor. This strong σ-donor ligand induces dissociation of CuCl and PhBCl2 leading to formation of ionic complexes 4 and 5 respectively. The reaction of 1 with ZnCl2 and AlCl3 resulted in the formation of chelate complexes 5 and 7, respectively, while treatment with EtAlCl2 and GaCl3 forms monodentate complexes 8 and 9. X-ray analysis of 4 showed that the copper is in the spiro center of the two five-membered rings. Moreover, the copper(I)chloride has not been oxidized but dissociates to Cu+ and [CuCl2 ]- . All the compounds are well characterized by mass spectrometry, elemental analysis, NMR spectroscopy, and single-crystal X-ray diffraction studies.
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Affiliation(s)
- Mohd Nazish
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Mujahuddin M. Siddiqui
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Samir Kumar Sarkar
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Annika Münch
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Christina M. Legendre
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Regine Herbst‐Irmer
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Dietmar Stalke
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
| | - Herbert W. Roesky
- Institut für Anorganische ChemieUniversität GöttingenTammannstraße 437077GöttingenGermany
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17
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Fujimori S, Inoue S. Small Molecule Activation by Two-Coordinate Acyclic Silylenes. Eur J Inorg Chem 2020; 2020:3131-3142. [PMID: 32999589 PMCID: PMC7507849 DOI: 10.1002/ejic.202000479] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Indexed: 02/05/2023]
Abstract
In recent decades, the chemistry of stable silylenes (R2Si:) has evolved significantly. The first major development in this chemistry was the isolation of a silicocene which is stabilized by the Cp* (Cp* = η5-C5Me5) ligand in 1986 and subsequently the isolation of a first N-heterocyclic silylene (NHSi:) in 1994. Since the groundbreaking discoveries, a large number of isolable cyclic silylenes and higher coordinated silylenes, i.e. Si(II) compounds with coordination number greater than two, have been prepared and the properties investigated. However, the first isolable two-coordinate acyclic silylene was finally reported in 2012. The achievements in the synthesis of acyclic silylenes have allowed for the utilization of silylenes in small molecule activation including inert H2 activation, a process previously exclusive to transition metals. This minireview highlights the developments in silylene chemistry, specifically two-coordinate acyclic silylenes, including experimental and computational studies which investigate the extremely high reactivity of the acyclic silylenes.
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Affiliation(s)
- Shiori Fujimori
- Department of ChemistryWACKER‐Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - Shigeyoshi Inoue
- Department of ChemistryWACKER‐Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
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18
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Mangan RJ, Rit A, Sindlinger CP, Tirfoin R, Campos J, Hicks J, Christensen KE, Niu H, Aldridge S. Activation of Protic, Hydridic and Apolar E-H Bonds by a Boryl-Substituted Ge II Cation. Chemistry 2019; 26:306-315. [PMID: 31660651 DOI: 10.1002/chem.201904171] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 11/07/2022]
Abstract
The synthesis of a boryl-substituted germanium(II) cation, [Ge{B(NDippCH)2 }(IPrMe)]+ , (Dipp=2,6-diisopropylphenyl) featuring a supporting N-heterocyclic carbene (NHC) donor, has been explored through chloride abstraction from the corresponding (boryl)(NHC)GeCl precursor. Crystallographic studies in the solid state and UV/Vis spectra in fluorobenzene solution show that this species dimerizes under such conditions to give [(IPrMe){(HCNDipp)2 B}Ge=Ge{B(NDippCH)2 }(IPrMe)]2+ (IPrMe = 1,3-diisopropyl-4,5-dimethylimidazolin-2-ylidene), which can be viewed as an imidazolium-functionalized digermene. The dimer is cleaved in the presence of donor solvents such as [D8 ]thf or [D5 ]pyridine, to give monomeric adducts of the type [Ge{B(NDippCH)2 }(IPrMe)(L)]+ . In the case of the thf adduct, the additional donor is shown to be sufficiently labile that it can act as a convenient in situ source of the monomeric complex [Ge{B(NDippCH)2 }(IPrMe)]+ for oxidative bond-activation chemistry. Thus, [Ge{B(NDippCH)2 }(IPrMe)(thf)]+ reacts with silanes and dihydrogen, leading to the formation of GeIV products, whereas the cleavage of the N-H bond in ammonia ultimately yields products containing C-H and B-N bonds. The facile reactivity observed in E-H bond activation is in line with the very small calculated HOMO-LUMO gap (132 kJ mol-1 ).
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Affiliation(s)
- Robert J Mangan
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Arnab Rit
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Christian P Sindlinger
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Rémi Tirfoin
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Jesús Campos
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Jamie Hicks
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Kirsten E Christensen
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Haoyu Niu
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
| | - Simon Aldridge
- Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford, OX1 3QR, UK
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19
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Takahashi S, Bellan E, Baceiredo A, Saffon‐Merceron N, Massou S, Nakata N, Hashizume D, Branchadell V, Kato T. A Stable N‐Hetero
‐Rh
‐Metallacyclic Silylene. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904594] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Shintaro Takahashi
- Department of ChemistryGraduate School of Science and EngineeringSaitama University, Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Ekaterina Bellan
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069)Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
| | - Antoine Baceiredo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069)Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
| | - Nathalie Saffon‐Merceron
- Institut de Chimie de Toulouse (FR 2599)Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
| | - Stéphane Massou
- Institut de Chimie de Toulouse (FR 2599)Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
| | - Norio Nakata
- Department of ChemistryGraduate School of Science and EngineeringSaitama University, Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS) 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Vicenç Branchadell
- Departament de QuímicaUniversitat Autònoma de Barcelona 08193 Bellaterra Spain
| | - Tsuyoshi Kato
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069)Université de Toulouse, CNRS 118 route de Narbonne 31062 Toulouse France
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20
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Takahashi S, Bellan E, Baceiredo A, Saffon-Merceron N, Massou S, Nakata N, Hashizume D, Branchadell V, Kato T. A Stable N-Hetero-Rh-Metallacyclic Silylene. Angew Chem Int Ed Engl 2019; 58:10310-10314. [PMID: 31132319 DOI: 10.1002/anie.201904594] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/27/2019] [Indexed: 01/07/2023]
Abstract
A cyclic (amino)metal-substituted dicoordinated silylene derivative has been synthesized and fully characterized. Of particular interest is that the N-hetero-RhI -metallacyclic silylene exhibits a distorted tetrahedral geometry around the rhodium atom and a considerably shortened Si-Rh bond (2.138 Å) compared to classical Si-Rh single bonds (ca. 2.30-2.35 Å). A theoretical investigation reveals that the geometrical deviation around the rhodium center from the classical square-planar to a tetrahedral geometry increases the π-donating and σ-accepting character of the rhodium atom, thereby efficiently stabilizing the silylene moiety.
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Affiliation(s)
- Shintaro Takahashi
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Ekaterina Bellan
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Antoine Baceiredo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse (FR 2599), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Stéphane Massou
- Institut de Chimie de Toulouse (FR 2599), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Tsuyoshi Kato
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
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21
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Ayoubi‐Chianeh M, Kassaee MZ, Ashenagar S, Cummings PT. Nucleophilicity of cyclic conjugated silylenes using DFT method. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.3956] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | - Mohamad Z. Kassaee
- Department of ChemistryTarbiat Modares University Tehran Iran
- Chemical and Biomolecular EngineeringVanderbilt University Nashville TN USA
- Visiting Scholar (sabbatical) at Vanderbilt University Nashville TN USA
| | | | - Peter T. Cummings
- Chemical and Biomolecular EngineeringVanderbilt University Nashville TN USA
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22
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Loh YK, Ying L, Ángeles Fuentes M, Do DCH, Aldridge S. An N-Heterocyclic Boryloxy Ligand Isoelectronic with N-Heterocyclic Imines: Access to an Acyclic Dioxysilylene and its Heavier Congeners. Angew Chem Int Ed Engl 2019; 58:4847-4851. [PMID: 30677206 DOI: 10.1002/anie.201812058] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/23/2019] [Indexed: 01/30/2023]
Abstract
Introduced here is a new type of strongly donating N-heterocyclic boryloxy (NHBO) ligand, [(HCDippN)2 BO]- (Dipp=2,6-diisopropylphenyl), which is isoelectronic with the well-known N-heterocyclic iminato (NHI) donor class. This 1,3,2-diazaborole functionalized oxy ligand has been used to stabilize the first acyclic two-coordinate dioxysilylene and its Ge, Sn, and Pb congeners, thereby presenting the first complete series of heavier group 14 dioxycarbene analogues. All four compounds have been characterized by X-ray crystallography and density-functional theory, enabling analysis of periodic trends: the potential for the [(HCDippN)2 BO]- ligand to subtly vary its electronic-donor capabilities is revealed by snapshots showing the gradual evolution of arene π coordination on going from Si to Pb.
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Affiliation(s)
- Ying Kai Loh
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Lu Ying
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - M Ángeles Fuentes
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Dinh Cao Huan Do
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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23
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Keuter J, Hepp A, Mück‐Lichtenfeld C, Lips F. Synthese einer NHC‐koordinierten Siliciumringverbindung mit Si=N‐Gruppe und einem zweifachkoordinierten Siliciumatom. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813674] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jan Keuter
- Westfälische Wilhelms-Universität MünsterInstitut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
| | - Alexander Hepp
- Westfälische Wilhelms-Universität MünsterInstitut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
| | - Christian Mück‐Lichtenfeld
- Westfälische Wilhelms-Universität MünsterOrganisch-Chemisches Institut und Center for Multiscale Theory and Computation Corrensstraße 40 48149 Münster Deutschland
| | - Felicitas Lips
- Westfälische Wilhelms-Universität MünsterInstitut für Anorganische und Analytische Chemie Corrensstraße 28–30 48149 Münster Deutschland
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24
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Zhou Y, Driess M. Isolable Silylene Ligands Can Boost Efficiencies and Selectivities in Metal‐Mediated Catalysis. Angew Chem Int Ed Engl 2019; 58:3715-3728. [DOI: 10.1002/anie.201811088] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Yu‐Peng Zhou
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
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25
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Keuter J, Hepp A, Mück-Lichtenfeld C, Lips F. Facile Access to an NHC-Coordinated Silicon Ring Compound with a Si=N Group and a Two-Coordinate Silicon Atom. Angew Chem Int Ed Engl 2019; 58:4395-4399. [PMID: 30604915 DOI: 10.1002/anie.201813674] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 01/07/2023]
Abstract
Reaction of the bicyclo[1.1.0]tetrasilatetraamide Si4 {N(SiMe3 )Dipp}4 1 (Dipp=2,6-diisopropylphenyl) with 5 equiv of the N-heterocyclic carbene NHCMe4 (1,3,4,5-tetramethylimidazol-2-ylidene) affords a bifunctional carbene-coordinated four-membered-ring compound with a Si=N group and a two-coordinate silicon atom Si4 {N(SiMe3 )Dipp}2 (NHCMe4 )2 (NDipp) 2. When 2 reacts with 0.25 equiv sulfur (S8 ), two sulfur atoms add to the divalent silicon atom in plane and perpendicular to the plane of the Si4 ring, which confirms the silylone character of the two-coordinate silicon atom in 2.
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Affiliation(s)
- Jan Keuter
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
| | - Christian Mück-Lichtenfeld
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 40, 48149, Münster, Germany
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, 48149, Münster, Germany
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26
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Diab F, Aicher FSW, Sindlinger CP, Eichele K, Schubert H, Wesemann L. Reductive Elimination and Oxidative Addition of Hydrogen at Organostannylium and Organogermylium Cations. Chemistry 2019; 25:4426-4434. [PMID: 30706972 DOI: 10.1002/chem.201805770] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 01/31/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Fatima Diab
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Frederik S. W. Aicher
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Christian P. Sindlinger
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
- Institut für Anorganische ChemieGeorg-August Universität Göttingen Tammannstr. 4 37077 Göttingen Germany
| | - Klaus Eichele
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Hartmut Schubert
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Lars Wesemann
- Institut für Anorganische ChemieEberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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27
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Loh YK, Ying L, Ángeles Fuentes M, Do DCH, Aldridge S. An N‐Heterocyclic Boryloxy Ligand Isoelectronic with N‐Heterocyclic Imines: Access to an Acyclic Dioxysilylene and its Heavier Congeners. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ying Kai Loh
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Lu Ying
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - M. Ángeles Fuentes
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Dinh Cao Huan Do
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Simon Aldridge
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
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28
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Stanford MW, Schweizer JI, Menche M, Nichol GS, Holthausen MC, Cowley MJ. Intercepting the Disilene-Silylsilylene Equilibrium. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Martin W. Stanford
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
| | - Julia I. Schweizer
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Maximilian Menche
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Gary S. Nichol
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
| | - Max C. Holthausen
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Michael J. Cowley
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
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29
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Zhou Y, Driess M. Isolable Silylene Ligands Can Boost Efficiencies and Selectivities in Metal‐Mediated Catalysis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811088] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yu‐Peng Zhou
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic MaterialsTechnische Universität Berlin Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
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30
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Stanford MW, Schweizer JI, Menche M, Nichol GS, Holthausen MC, Cowley MJ. Intercepting the Disilene-Silylsilylene Equilibrium. Angew Chem Int Ed Engl 2019; 58:1329-1333. [DOI: 10.1002/anie.201810056] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/25/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Martin W. Stanford
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
| | - Julia I. Schweizer
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Maximilian Menche
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Gary S. Nichol
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
| | - Max C. Holthausen
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Michael J. Cowley
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ UK
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31
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Protchenko AV, Vasko P, Do DCH, Hicks J, Fuentes MÁ, Jones C, Aldridge S. Reduction of Carbon Oxides by an Acyclic Silylene: Reductive Coupling of CO. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812675] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Andrey V. Protchenko
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Petra Vasko
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Dinh Cao Huan Do
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Jamie Hicks
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - M. Ángeles Fuentes
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
| | - Cameron Jones
- School of ChemistryMonash University PO Box 23 Melbourne VIC 3800 Australia
| | - Simon Aldridge
- Inorganic Chemistry LaboratoryDepartment of ChemistryUniversity of Oxford South Parks Road Oxford OX1 3QR UK
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Protchenko AV, Vasko P, Do DCH, Hicks J, Fuentes MÁ, Jones C, Aldridge S. Reduction of Carbon Oxides by an Acyclic Silylene: Reductive Coupling of CO. Angew Chem Int Ed Engl 2019; 58:1808-1812. [PMID: 30537262 DOI: 10.1002/anie.201812675] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Indexed: 11/08/2022]
Abstract
Reactions of a boryl-substituted acyclic silylene with carbon dioxide and monoxide are reported. The former proceeds through oxygen atom abstraction, generating CO (with rearrangement of the putative silanone product through silyl-group transfer). The latter is characterized by reductive coupling of CO to give an ethynediolate fragment, which undergoes formal insertion into the Si-B bond. The net conversion of carbon dioxide with two equivalents of silylene offers a route for the three-electron reduction of CO2 to [C2 O2 ]2- .
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Affiliation(s)
- Andrey V Protchenko
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Petra Vasko
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Dinh Cao Huan Do
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Jamie Hicks
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - M Ángeles Fuentes
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Cameron Jones
- School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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33
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Kelly JA, Juckel M, Hadlington TJ, Fernández I, Frenking G, Jones C. Synthesis and Reactivity Studies of Amido-Substituted Germanium(I)/Tin(I) Dimers and Clusters. Chemistry 2018; 25:2773-2785. [PMID: 30370947 DOI: 10.1002/chem.201804770] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Indexed: 11/10/2022]
Abstract
Three amide ligands of varying steric bulk and electronic properties were utilized to prepare a series of amido-germanium(II)/tin(II) halide compounds, (LEX)n , (L= -N{B(DipNCH)2 }(SiMe3 ), TBo L; -N{B(DipNCH)2 }(SiPh3 ), PhBo L; -N(Dip)(tBu), DBu L; Dip=C6 H3 iPr2 -2,6; E=Ge or Sn; X=Cl or Br; n=1 or 2). Reductions of these with a magnesium(I) dimer, {(Mes Nacnac)Mg}2 (Mes Nacnac=[(MesNCMe)2 CH]- , Mes=mesityl), afforded singly bonded amido-digermynes (TBo LGe-GeTBo L and PhBo LGe-GePhBo L), and an amido-distannyne (PhBo LSn-SnPhBo L), in addition to several low-valent, amido stabilized tetrel-tetrel bonded cluster compounds, (DBu LGe)4 , (DBu LSn)6 and Sn5 (TBo L)4 . The nature of the products resulting from these reactions was largely dependent on the steric bulk of the amide ligand employed. Cluster (DBu LGe)4 possessed an unusual folded butterfly structure, the bonding and electronic of which were examined using DFT calculations. Reactions of the amido-germanium(I) compounds with H2 were explored, and gave rise to the amido-digermene, TBo L(H)Ge=Ge(H)TBo L and the cyclotetragermane, {DBu L(H)Ge}4 . Reactions of (DBu LGe)4 with a series of unsaturated small molecule substrates yielded DBu LGeOGeDBu L, DBu LGe(μ-C2 H4 )2 GeDBu L and DBu LGe(μ-1,4-C6 H8 )(μ-1,2-C6 H8 )GeDBu L. The latter results imply that (DBu LGe)4 can act as a masked source of the digermyne DBu LGeGeDBu L in these reactions. All further reactivity studies indicated that the germanium(I) compounds exhibit a "transition-metal-like" behavior, which is closely related to that previously described for bulky digermynes and related compounds.
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Affiliation(s)
- John A Kelly
- Monash Centre for Catalysis, School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
| | - Martin Juckel
- Monash Centre for Catalysis, School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
| | - Terrance J Hadlington
- Monash Centre for Catalysis, School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en, Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität Marburg, 35032, Marburg, Germany.,Donostia International Physics Center (DIPC), P.K. 1072, 20080, Donostia, Euskadi, Spain
| | - Cameron Jones
- Monash Centre for Catalysis, School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
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34
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[4‐(Ph
3
B)‐2,6‐Mes
2
Py]
−
: A Sterically Demanding Anionic Pyridine. Chemistry 2018; 24:16851-16856. [DOI: 10.1002/chem.201803626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Indexed: 11/07/2022]
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35
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Marro EA, Press EM, Purkait TK, Jimenez D, Siegler MA, Klausen RS. Cooperative Noncovalent Interactions Induce Ion Pair Separation in Diphenylsilanides. Chemistry 2017; 23:15633-15637. [PMID: 28940844 DOI: 10.1002/chem.201704217] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Eric A. Marro
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
| | - Eric M. Press
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
| | - Tapas K. Purkait
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
| | - Daniel Jimenez
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
| | - Maxime A. Siegler
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
| | - Rebekka S. Klausen
- Department of Chemistry Johns Hopkins University 3400 N. Charles St Baltimore MD 21218 USA
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36
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Schröder J, Himmel D, Böttcher T. 2,6-Bis(diazaboryl)pyridine: A Superbasic Sterically Demanding Pyridine Ligand. Chemistry 2017. [PMID: 28643874 DOI: 10.1002/chem.201702890] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Herein a convenient one-pot route to a sterically demanding superbasic pyridine is presented. Functionalization of the 2- and 6-positions with the strongly σ-donating boryl-groups shifts the calculated gas phase basicity of the pyridine nitrogen atom to 1012 kJ mol-1 , which outperforms the "proton sponge" 1,8-bis(dimethylamino)naphthalene (996 kJ mol-1 ). The diazaboryl groups are oriented orthogonally to the pyridine ring and do not block the N-position, which resembles the geometry of commonly used N-heterocyclic carbenes. This allows the substituted pyridine to be used as a neutral N-donor ligand in coordination chemistry that is demonstrated herein with the Lewis adducts of haloboranes. Contrary to NHCs, which can form extraordinarily stable adducts, the pyridine ligand is intended to act as a weaker-coordinating alternative and could allow for alternative ligand chemistry.
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Affiliation(s)
- Jan Schröder
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
| | - Daniel Himmel
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
| | - Tobias Böttcher
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
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37
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Exceptionally Strong Electron-Donating Ability of Bora-Ylide Substituent vis-à-vis Silylene and Silylium Ion. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705302] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Rosas-Sánchez A, Alvarado-Beltran I, Baceiredo A, Saffon-Merceron N, Massou S, Branchadell V, Kato T. Exceptionally Strong Electron-Donating Ability of Bora-Ylide Substituent vis-à-vis Silylene and Silylium Ion. Angew Chem Int Ed Engl 2017; 56:10549-10554. [PMID: 28731275 DOI: 10.1002/anie.201705302] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Indexed: 11/11/2022]
Abstract
Electropositive boron-based substituent (phosphonium bora-ylide) with an exceptionally strong π- and σ-electron donating character dramatically increases the stability of a new type of N-heterocyclic silylene 2 featuring amino- and bora-ylide-substituents. Moreover, the related silylium ion 4 and transition-metal-silylene complexes, with trigonal-planar geometries around the silicon center, are also well stabilized. Therefore, the N,B-heterocyclic silylene 2 can be used as a strongly electron-donating innocent ligand in coordination chemistry similarly to N-heterocyclic carbenes.
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Affiliation(s)
- Alfredo Rosas-Sánchez
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse, France
| | - Isabel Alvarado-Beltran
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse, France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse, France
| | - Nathalie Saffon-Merceron
- Université de Toulouse, UPS, and CNRS, ICT FR2599, 118 route de Narbonne, 31062, Toulouse, France
| | - Stéphane Massou
- Université de Toulouse, UPS, and CNRS, ICT FR2599, 118 route de Narbonne, 31062, Toulouse, France
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse, France
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39
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Hadlington TJ, Szilvási T, Driess M. Silylene-Nickel Promoted Cleavage of B−O Bonds: From Catechol Borane to the Hydroborylene Ligand. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702772] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Terrance J. Hadlington
- Department of Chemistry, Metalorganics and Inorganic Materials; Technische Universität Berlin; Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering; University of Wisconsin-Madison; 1415 Engineering Drive Madison WI 53706 USA
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials; Technische Universität Berlin; Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
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40
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Hadlington TJ, Szilvási T, Driess M. Silylene-Nickel Promoted Cleavage of B−O Bonds: From Catechol Borane to the Hydroborylene Ligand. Angew Chem Int Ed Engl 2017; 56:7470-7474. [DOI: 10.1002/anie.201702772] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Terrance J. Hadlington
- Department of Chemistry, Metalorganics and Inorganic Materials; Technische Universität Berlin; Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering; University of Wisconsin-Madison; 1415 Engineering Drive Madison WI 53706 USA
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials; Technische Universität Berlin; Strasse des 17. Juni 135, Sekr. C2 10623 Berlin Germany
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41
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Dong Z, Li Z, Liu X, Yan C, Wei N, Kira M, Müller T. Dihydrogen Splitting Using Dialkylsilylene-Based Frustrated Lewis Pairs. Chem Asian J 2017; 12:1204-1207. [DOI: 10.1002/asia.201700143] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Zhaowen Dong
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
- Institute of Chemistry; Carl von Ossietzky Universität Oldenburg; Carl-von-Ossietzky-Str. 9-11 26129 Oldenburg Germany
| | - Zhifang Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
| | - Xupeng Liu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
| | - Chenting Yan
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
| | - Ningka Wei
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
| | - Mitsuo Kira
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; No. 2318 Yuhangtang Rd. Hangzhou 311121 Zhejiang China
| | - Thomas Müller
- Institute of Chemistry; Carl von Ossietzky Universität Oldenburg; Carl-von-Ossietzky-Str. 9-11 26129 Oldenburg Germany
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42
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Mo Z, Szilvási T, Zhou Y, Yao S, Driess M. An Intramolecular Silylene Borane Capable of Facile Activation of Small Molecules, Including Metal‐Free Dehydrogenation of Water. Angew Chem Int Ed Engl 2017; 56:3699-3702. [DOI: 10.1002/anie.201700625] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Zhenbo Mo
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706 USA
| | - Yu‐Peng Zhou
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Shenglai Yao
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Matthias Driess
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
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43
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Mo Z, Szilvási T, Zhou Y, Yao S, Driess M. An Intramolecular Silylene Borane Capable of Facile Activation of Small Molecules, Including Metal‐Free Dehydrogenation of Water. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700625] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhenbo Mo
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706 USA
| | - Yu‐Peng Zhou
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Shenglai Yao
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
| | - Matthias Driess
- Technische Universität Berlin Department of Chemistry: Metalorganics and Inorganic Materials, Sekr. C2 Strasse des 17. Juni 135 10623 Berlin Germany
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44
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Alvarado-Beltran I, Baceiredo A, Saffon-Merceron N, Branchadell V, Kato T. Cyclic Amino(Ylide) Silylene: A Stable Heterocyclic Silylene with Strongly Electron-Donating Character. Angew Chem Int Ed Engl 2016; 55:16141-16144. [PMID: 27885787 DOI: 10.1002/anie.201609899] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 10/28/2016] [Indexed: 11/12/2022]
Abstract
An isolable heterocyclic silylene (4) with two different π-donating substituents, namely a classical amino group and a more electropositive and stronger carbon-based π-donating phosphonium ylide, was synthesized and fully characterized. The combination of these two different π-donating substituents confers high thermal stability and an unusual nucleophilic character on silylene 4. Therefore, silylene 4 behaves as a strong donor ligand toward transition metals with a donating character comparable to N-heterocyclic carbenes, in contrast to classical N-heterocyclic silylenes, which generally present a weak donating character.
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Affiliation(s)
- Isabel Alvarado-Beltran
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse cedex 9, France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse cedex 9, France
| | | | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 route de Narbonne, 31062, Toulouse cedex 9, France
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45
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Walewska M, Baumgartner J, Marschner C, Albers L, Müller T. Alkyne Addition and Insertion Reactions of [(Me 3 Si) 3 Si] 2 Ge⋅PMe 3. Chemistry 2016; 22:18512-18521. [PMID: 27862421 DOI: 10.1002/chem.201603317] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Indexed: 11/12/2022]
Abstract
Silylated germylene-PMe3 adducts exchange their phosphane moiety smoothly for an N-heterocyclic carbene or isocyanide species to form their respective base adducts. Reaction of the silylated germylene-PMe3 adducts with monosubstituted alkynes produce germylene adducts with the alkyne inserted into a Ge-Si bond. A computational study of this process provides evidence for the initial formation of a germirene, which rearranges to a vinylgermylene species. The thermodynamic driving force for this reaction is provided by subsequent adduct formation with PMe3 . Reaction of the PMe3 adduct of bis[(trimethylsilyl)silyl]germylene with disubstituted alkynes leads to the formation of stable germirenes, which can be isomerized further to silagermetes.
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Affiliation(s)
- Małgorzata Walewska
- Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Judith Baumgartner
- Institut für Chemie, Karl Franzens Universität Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Christoph Marschner
- Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010, Graz, Austria
| | - Lena Albers
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Straße 1-3, 26211, Oldenburg, Germany
| | - Thomas Müller
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Straße 1-3, 26211, Oldenburg, Germany
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46
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Alvarado-Beltran I, Baceiredo A, Saffon-Merceron N, Branchadell V, Kato T. Cyclic Amino(Ylide) Silylene: A Stable Heterocyclic Silylene with Strongly Electron-Donating Character. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609899] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Isabel Alvarado-Beltran
- Université de Toulouse; UPS, and CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse cedex 9 France
| | - Antoine Baceiredo
- Université de Toulouse; UPS, and CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse cedex 9 France
| | | | - Vicenç Branchadell
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Tsuyoshi Kato
- Université de Toulouse; UPS, and CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse cedex 9 France
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47
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Kosai T, Ishida S, Iwamoto T. A Two-Coordinate Cyclic (Alkyl)(amino)silylene: Balancing Thermal Stability and Reactivity. Angew Chem Int Ed Engl 2016; 55:15554-15558. [DOI: 10.1002/anie.201608736] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/11/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Tomoyuki Kosai
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
| | - Shintaro Ishida
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
| | - Takeaki Iwamoto
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
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48
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Kosai T, Ishida S, Iwamoto T. A Two-Coordinate Cyclic (Alkyl)(amino)silylene: Balancing Thermal Stability and Reactivity. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608736] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomoyuki Kosai
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
| | - Shintaro Ishida
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
| | - Takeaki Iwamoto
- Department of Chemistry, Graduate School of Science; Tohoku University; Aoba-ku Sendai 980-8578 Japan
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49
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Reversible Silylene Insertion Reactions into Si−H and P−H σ-Bonds at Room Temperature. Angew Chem Int Ed Engl 2016; 55:14355-14358. [DOI: 10.1002/anie.201606728] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/01/2016] [Indexed: 11/07/2022]
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50
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Rodriguez R, Contie Y, Nougué R, Baceiredo A, Saffon-Merceron N, Sotiropoulos JM, Kato T. Reversible Silylene Insertion Reactions into Si−H and P−H σ-Bonds at Room Temperature. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606728] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ricardo Rodriguez
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 188 route de Narbonne 31062 Toulouse France
- CSIC-Universidad de Zaragoza; Departamento de Quımica Inorgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); 50009 Zaragoza Spain
| | - Yohan Contie
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 188 route de Narbonne 31062 Toulouse France
| | - Raphael Nougué
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 188 route de Narbonne 31062 Toulouse France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 188 route de Narbonne 31062 Toulouse France
| | | | - Jean-Marc Sotiropoulos
- UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM, ECP, UMR 5254; 64053 Pau France
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 188 route de Narbonne 31062 Toulouse France
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