1
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Zhao X, Szilvási T, Hanusch F, Kelly JA, Fujimori S, Inoue S. Isolation and Reactivity of Tetrylene-Tetrylone-Iron Complexes Supported by Bis(N-Heterocyclic Imine) Ligands. Angew Chem Int Ed Engl 2022; 61:e202208930. [PMID: 35925668 PMCID: PMC9804675 DOI: 10.1002/anie.202208930] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 01/09/2023]
Abstract
The germanium iron carbonyl complex 3 was prepared by the reaction of dimeric chloro(imino)germylene [IPrNGeCl]2 (IPrN=bis(2,6-diisopropylphenyl)imidazolin-2-iminato) with one equivalent of Collman's reagent (Na2 Fe(CO)4 ) at room temperature. Similarly, the reaction of chloro(imino)stannylene [IPrNSnCl]2 with Na2 Fe(CO)4 (1 equiv) resulted in the Fe(CO)4 -bridged bis(stannylene) complex 4. We observed reversible formation of bis(tetrylene) and tetrylene-tetrylone character in complexes 3 vs. 5 and 4 vs. 6, which was supported by DFT calculations. Moreover, the Li/Sn/Fe trimetallic complex 12 has been isolated from the reaction of [IPrNSnCl]2 with cyclopentadienyl iron dicarbonyl anion. The computational analysis further rationalizes the reduction pathway from these chlorotetrylenes to the corresponding complexes.
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Affiliation(s)
- Xuan‐Xuan Zhao
- School of Natural SciencesDepartment of ChemistryWACKER-Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - Tibor Szilvási
- Department of Chemical and Biological EngineeringUniversity of AlabamaTuscaloosaAL 35487USA
| | - Franziska Hanusch
- School of Natural SciencesDepartment of ChemistryWACKER-Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - John A. Kelly
- School of Natural SciencesDepartment of ChemistryWACKER-Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - Shiori Fujimori
- School of Natural SciencesDepartment of ChemistryWACKER-Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
| | - Shigeyoshi Inoue
- School of Natural SciencesDepartment of ChemistryWACKER-Institute of Silicon Chemistry and Catalysis Research CenterTechnische Universität MünchenLichtenbergstraße 485748Garching bei MünchenGermany
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2
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Zhao XX, Szilvási T, Hanusch F, Kelly J, Fujimori S, Inoue S. Isolation and Reactivity of Tetrylene‐Tetrylone‐Iron Complexes Supported by Bis(N‐Heterocyclic Imine) Ligands. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xuan-Xuan Zhao
- Technische Universität München: Technische Universitat Munchen Department of Chemistry GERMANY
| | - Tibor Szilvási
- The University of Alabama Department of Chemical and Biological Engineering UNITED STATES
| | - Franziska Hanusch
- Technische Universität München: Technische Universitat Munchen Department of Chemistry GERMANY
| | - John Kelly
- Technische Universität München: Technische Universitat Munchen Department of Chemistry GERMANY
| | - Shiori Fujimori
- Technische Universität München: Technische Universitat Munchen Department of Chemistry GERMANY
| | - Shigeyoshi Inoue
- Technische Universität München Fakultät für Chemie Lichtenbergstraße 485748 Garching 85748 Garching bei München GERMANY
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3
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Zhao XX, Kelly JA, Kostenko A, Fujimori S, Inoue S. N‐Heterocyclic Imine‐Stabilized Binuclear Tin(II) Cations: Synthesis, Reactivity, and Catalytic Application. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200220] [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)
| | | | | | | | - Shigeyoshi Inoue
- Technische Universität München Fakultät für Chemie Lichtenbergstraße 485748 Garching 85748 Garching bei München GERMANY
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4
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Biswas S, Patel N, Deb R, Majumdar M. Chemistry of the Bis(imine)-Based Tetradentate Ligand Stabilized Group 14 E(II) Cations (E=Ge and Sn). CHEM REC 2022; 22:e202200003. [PMID: 35253982 DOI: 10.1002/tcr.202200003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 11/10/2022]
Abstract
The ambiphilic Ge(II) and Sn(II) cationic species have been reported to be isolated through kinetic or thermodynamic stabilizations. Nonetheless, steric congestion or excessive coordination of donor atoms to the cationic center concurrently disfavors its prompt reactivity. Our research in this field revolves around the utilization of structurally non-rigid bis(imine) based tetradentate supporting ligands for the stabilization of Ge(II) and Sn(II) cationic species. Such E(II) cationic systems have been advantaged due to inherent flexibility present at the ligand backbone allowing disposal of E(II) orbitals through geometric rearrangements for further reactivity. The bifunctionality present in the ligand enables the first examples of Ge(II) bis-monocations. Furthermore, the redox-active nature of the ligand encourages participation in chemical transformations. In this personal account we have provided a detailed discussion of our published work in this direction in the last five years.
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Affiliation(s)
- Swastik Biswas
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Niranjan Patel
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Rahul Deb
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
| | - Moumita Majumdar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, Maharashtra, India
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5
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Mohapatra C, Darmandeh H, Steinert H, Mallick B, Feichtner K, Gessner VH. Synthesis of Low-Valent Dinuclear Group 14 Compounds with Element-Element Bonds by Transylidation. Chemistry 2020; 26:15145-15149. [PMID: 32954596 PMCID: PMC7756224 DOI: 10.1002/chem.202004242] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Indexed: 12/04/2022]
Abstract
Dinuclear low-valent compounds of the heavy main group elements are rare species owing to their intrinsic reactivity. However, they represent desirable target molecules due to their unusual bonding situations as well as applications in bond activations and materials synthesis. The isolation of such compounds usually requires the use of substituents that provide sufficient stability and synthetic access. Herein, we report on the use of strongly donating ylide-substituents to access low-valent dinuclear group 14 compounds. The ylides not only impart steric and electronic stabilization, but also allow facile synthesis via transfer of an ylide from tetrylene precursors of type R Y2 E to ECl2 (E=Ge, Sn; R Y=TolSO2 (PR3 )C with R=Ph, Cy). This method allowed the isolation of dinuclear complexes amongst a germanium analogue of a vinyl cation, [(Ph Y)2 GeGe(Ph Y)]+ with an electronic structure best described as a germylene-stabilized GeII cation and a ylide(chloro)digermene [Cy Y(Cl)GeGe(Cl)Cy Y] with an unusually unsymmetrical structure.
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Affiliation(s)
- Chandrajeet Mohapatra
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Heidar Darmandeh
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Henning Steinert
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Bert Mallick
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Kai‐Stephan Feichtner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and BiochemistryRuhr-University BochumUniversitätsstraße 15044801BochumGermany
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6
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Wagner C, Kreis F, Popp D, Hübner O, Kaifer E, Himmel H. 1,2,4,5‐Tetrakis(tetramethylguanidino)‐3,6‐diethynyl‐benzenes: Fluorescent Probes, Redox‐Active Ligands and Strong Organic Electron Donors. Chemistry 2020; 26:10336-10347. [PMID: 32368816 PMCID: PMC7497081 DOI: 10.1002/chem.202001557] [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: 03/31/2020] [Revised: 04/30/2020] [Indexed: 11/25/2022]
Abstract
In this work, the change of reactivity induced by the introduction of two para‐ethynyl substituents (CCSi(iPr)3 or CCH) to the organic electron‐donor 1,2,4,5‐tetrakis(tetramethylguanidino)‐benzene is evaluated. The redox‐properties and redox‐state dependent fluorescence are evaluated, and dinuclear CuI and CuII complexes synthesized. The Lewis‐acidic B(C6F5)3 substitutes the proton of the ethynyl −CCH groups to give new anionic −CCB(C6F5)3− substituents, leading eventually to a novel dianionic strong electron donor in its diprotonated form. Its two‐electron oxidation with dioxygen in the presence of a copper catalyst yields the first redox‐active guanidine that is neutral (instead of cationic) in its oxidized form.
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Affiliation(s)
- Conrad Wagner
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Franka Kreis
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Dennis Popp
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Olaf Hübner
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Elisabeth Kaifer
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Hans‐Jörg Himmel
- Anorganisch-Chemisches Institut Ruprecht-Karls-Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
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7
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Goettel JT, Gao H, Dotzauer S, Braunschweig H. Me CAAC=N - : A Cyclic (Alkyl)(Amino)Carbene Imino Ligand. Chemistry 2020; 26:1136-1143. [PMID: 31777982 PMCID: PMC7027825 DOI: 10.1002/chem.201904715] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Indexed: 12/27/2022]
Abstract
A cyclic (alkyl)(amino)carbene (CAAC) has been shown to react with a covalent azide similar to the Staudinger reaction. The reaction of Me CAAC with trimethylsilyl azide afforded the N-silylated 2-iminopyrrolidine (Me CAAC=NSiMe3 ), which was fully characterized. This compound undergoes hydrolysis to afford the 2-iminopyrrolidine and trimethylsiloxane which co-crystallize as a hydrogen-bonded adduct. The N-silylated 2-iminopyrrolidine was used to transfer the novel pyrrolidine-2-iminato ligand onto both main-group and transition-metal centers. The reaction of the tetrabromodiborane bis(dimethyl sulfide) adduct with two equivalents of Me CAAC=NSiMe3 afforded the disubstituted diborane. The reaction of Me CAAC=NSiMe3 with TiCl4 and CpTiCl3 afforded Me CAAC=NTiCl3 and Me CAAC=NTiCl2 Cp, respectively.
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Affiliation(s)
- James T. Goettel
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Haopeng Gao
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Simon Dotzauer
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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8
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Franz D, Szilvási T, Pöthig A, Inoue S. Isolation of an N‐Heterocyclic Carbene Complex of a Borasilene. Chemistry 2019; 25:11036-11041. [DOI: 10.1002/chem.201902877] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Daniel Franz
- Department of ChemistryCatalysis Research Center and Institute of Silicon ChemistryTechnische Universität München Lichtenbergstrasse 4 85748 Garching bei München Germany
| | - Tibor Szilvási
- Department of Chemical and Biological EngineeringUniversity of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Alexander Pöthig
- Department of ChemistryCatalysis Research Center and Institute of Silicon ChemistryTechnische Universität München Lichtenbergstrasse 4 85748 Garching bei München Germany
| | - Shigeyoshi Inoue
- Department of ChemistryCatalysis Research Center and Institute of Silicon ChemistryTechnische Universität München Lichtenbergstrasse 4 85748 Garching bei München Germany
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9
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Mohapatra C, Scharf LT, Scherpf T, Mallick B, Feichtner K, Schwarz C, Gessner VH. Isolierung eines diylidstabilisierten Stannylens und Germylens: Erhöhte Donorstärke durch coplanare Anordnung freier Elektronenpaare. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902831] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chandrajeet Mohapatra
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Lennart T. Scharf
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Thorsten Scherpf
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Bert Mallick
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Kai‐Stephan Feichtner
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Christopher Schwarz
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Viktoria H. Gessner
- Lehrstuhl für Anorganische Chemie IIFakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
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10
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Mohapatra C, Scharf LT, Scherpf T, Mallick B, Feichtner KS, Schwarz C, Gessner VH. Isolation of a Diylide-Stabilized Stannylene and Germylene: Enhanced Donor Strength through Coplanar Lone Pair Alignment. Angew Chem Int Ed Engl 2019; 58:7459-7463. [PMID: 30901140 PMCID: PMC6563488 DOI: 10.1002/anie.201902831] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 11/17/2022]
Abstract
The preparation of the first stable diylide‐substituted stannylene and germylene (Y2E, with E=Ge, Sn and Y=[PPh3‐C‐SO2Tol]−) is reported. The synthesis is easily accomplished in one step from the sulfonyl‐substituted metalated ylide YNa and the corresponding ECl2 precursors. Y2Ge and Y2Sn exhibit unusual structures in the solid state and in solution, in which the three adjacent lone pairs in the C‐E‐C linkage are arranged coplanar to each other. As shown by DFT studies, this bonding situation is preferred over the typical π‐donation from the ligands into the empty p‐orbital at the metal due to the strong anion‐stabilizing ability of the sulfonyl groups in the ylide backbone and their additional coordination to the metal. The alignment of the three lone pairs leads to a remarkable boost of the HOMO energy and thus of the donor strengths of the tetrylenes. Hence, Y2Ge and Y2Sn become stronger donors than their diamino or diaryl congeners and comparable to cyclic alkyl(amino)carbenes. First reactivity studies confirm the high reactivity of Y2Ge and Y2Sn, which for example undergo an intramolecular C−H activation reaction via metal–ligand cooperation.
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Affiliation(s)
- Chandrajeet Mohapatra
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Lennart T Scharf
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Thorsten Scherpf
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Bert Mallick
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Kai-Stephan Feichtner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Christopher Schwarz
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Viktoria H Gessner
- Chair of Inorganic Chemistry II, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
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11
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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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12
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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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13
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Rao B, Wang L, Kinjo R. Borane-Catalyzed Cross-Metathesis Strategy for Facile Transformation of Cyclic (Alkyl)(Amino)Germylenes. Angew Chem Int Ed Engl 2019; 58:231-235. [PMID: 30447043 DOI: 10.1002/anie.201811574] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Indexed: 11/11/2022]
Abstract
A borane B(C6 F5 )3 -catalyzed metathesis reaction between the Si-C bond in the cyclic (alkyl)(amino)germylene (CAAGe) 1 and the Si-H bond in a silane (R3 SiH; 2) is reported. Mechanistic studies propose that the initial step of the reaction involves Si-H bond activation to furnish an ionic species [1-SiR3 ]+ [HB(C6 F5 )3 ]- , from which [Me3 Si]+ [HB(C6 F5 )3 ]- and an azagermole intermediate are generated. The former yields Me3 SiH concomitant with the regeneration of B(C6 F5 )3 whereas the latter undergoes isomerization to afford CAAGes bearing various silyl groups on the carbon atom next to the germylene center. This strategy allows the straightforward synthesis of eight new CAAGes starting from 1.
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Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Liliang Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
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14
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Rao B, Wang L, Kinjo R. Borane-Catalyzed Cross-Metathesis Strategy for Facile Transformation of Cyclic (Alkyl)(Amino)Germylenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Liliang Wang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
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15
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Roy MMD, Fujimori S, Ferguson MJ, McDonald R, Tokitoh N, Rivard E. Neutral, Cationic and Hydride-substituted Siloxygermylenes. Chemistry 2018; 24:14392-14399. [DOI: 10.1002/chem.201802958] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/06/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Matthew M. D. Roy
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton Alberta T6G 2G2 Canada
| | - Shiori Fujimori
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton Alberta T6G 2G2 Canada
- Institute for Chemical Research; Kyoto University; Uji Kyoto, 611-0011 Japan
| | - Michael J. Ferguson
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton Alberta T6G 2G2 Canada
| | - Robert McDonald
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton Alberta T6G 2G2 Canada
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Uji Kyoto, 611-0011 Japan
| | - Eric Rivard
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton Alberta T6G 2G2 Canada
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16
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Franz D, Szilvási T, Pöthig A, Deiser F, Inoue S. Three-Coordinate Boron(III) and Diboron(II) Dications. Chemistry 2018; 24:4283-4288. [DOI: 10.1002/chem.201800609] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Daniel Franz
- Department of Chemistry, Catalysis Research Center; Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching bei München Germany
| | - Tibor Szilvási
- Department of Chemical and Biological Engineering; University of Wisconsin-Madison; 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Alexander Pöthig
- Department of Chemistry, Catalysis Research Center; Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching bei München Germany
| | - Franziska Deiser
- Department of Chemistry, Catalysis Research Center; Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching bei München Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, Catalysis Research Center; Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching bei München Germany
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17
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Su Y, Li Y, Ganguly R, Kinjo R. Isolation and Reactivity of a Chlorogermyliumylidene Featuring Two Ge-Cl Units. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanting Su
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 637371 Singapore Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 637371 Singapore Singapore
| | - Rakesh Ganguly
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 637371 Singapore Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 637371 Singapore Singapore
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18
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Benedek Z, Orbán B, Szilvási T. Theoretical Evidence for the Utilization of Low-Valent Main-Group Complexes as Rare-Synthon Equivalents. Chemistry 2017; 23:17908-17914. [DOI: 10.1002/chem.201703636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Zsolt Benedek
- Department of Inorganic and Analytical Chemistry; Budapest University of Technology and Economics; Szent Gellért tér 4 1111 Budapest Hungary
| | - Balázs Orbán
- Department of Inorganic and Analytical Chemistry; Budapest University of Technology and Economics; Szent Gellért tér 4 1111 Budapest Hungary
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering; University of Wisconsin-Madison; 1415 Engineering Drive Madison Wisconsin 53706 USA
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19
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Lebedev YN, Das U, Schnakenburg G, Filippou AC. Coordination Chemistry of [E(Idipp)]2+ Ligands (E = Ge, Sn): Metal Germylidyne [Cp*(CO)2W≡Ge(Idipp)]+ and Metallotetrylene [Cp*(CO)3W–E(Idipp)]+ Cations. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00110] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yury N. Lebedev
- Institut für Anorganische
Chemie, Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Ujjal Das
- Institut für Anorganische
Chemie, Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Gregor Schnakenburg
- Institut für Anorganische
Chemie, Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Alexander C. Filippou
- Institut für Anorganische
Chemie, Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
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20
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ADUC Prizes: R. Langer, B. Morandi, R. D. Costa / Carl Duisberg Memorial Prize: S. Inoue / Horst Pracejus Prize: T. Bach / Elisabeth Lutz Prize: N. Maulide. Angew Chem Int Ed Engl 2017; 56:2835-2836. [DOI: 10.1002/anie.201700971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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ADUC-Preise: R. Langer, B. Morandi, R. D. Costa / Carl-Duisberg-Gedächtnispreis: S. Inoue / Horst-Pracejus-Preis: T. Bach / Elisabeth-Lutz-Preis: N. Maulide. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Hering-Junghans C, Andreiuk P, Ferguson MJ, McDonald R, Rivard E. Der Einsatz von N-heterocyclischen Vinylliganden zur Isolierung stabiler Divinylgermylene und eines Germylium-Kations. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609100] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Christian Hering-Junghans
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Kanada
| | - Patricia Andreiuk
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Kanada
| | - Michael J. Ferguson
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Kanada
| | - Robert McDonald
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Kanada
| | - Eric Rivard
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Drive Edmonton Alberta T6G 2G2 Kanada
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23
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Hering-Junghans C, Andreiuk P, Ferguson MJ, McDonald R, Rivard E. Using N-Heterocyclic Vinyl Ligands to Access Stable Divinylgermylenes and a Germylium Cation. Angew Chem Int Ed Engl 2016; 56:6272-6275. [PMID: 28510351 DOI: 10.1002/anie.201609100] [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: 09/16/2016] [Indexed: 11/11/2022]
Abstract
Two efficient methods are presented to install σ- and π-electron-donating N-heterocyclic vinyl groups onto main-group elements (E): halosilane elimination and base-induced E-C bond formation. Placement of two NHC=CH- ligands (NHC=N-heterocyclic carbene) onto a GeII center affords a two-coordinate germylene, a heavy congener of the elusive divinyl carbenes. The π-donating ability of this vinylic ligand scaffold was further demonstrated by the synthesis of a three-coordinate germylium cation R3 Ge+ .
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Affiliation(s)
- Christian Hering-Junghans
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, T6G 2G2, Canada
| | - Patricia Andreiuk
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, T6G 2G2, Canada
| | - Michael J Ferguson
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, T6G 2G2, Canada
| | - Robert McDonald
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, T6G 2G2, Canada
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, T6G 2G2, Canada
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24
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Franz D, Sirtl L, Pöthig A, Inoue S. Aluminum Hydrides Stabilized by N-Heterocyclic Imines as Catalysts for Hydroborations with Pinacolborane. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201600313] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniel Franz
- Department of Chemistry; Catalysis Research Center and Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
| | - Lorenz Sirtl
- Department of Chemistry; Catalysis Research Center and Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
| | - Alexander Pöthig
- Department of Chemistry; Catalysis Research Center and Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
| | - Shigeyoshi Inoue
- Department of Chemistry; Catalysis Research Center and Institute of Silicon Chemistry; Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
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