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Uchida K, Ishida S, Iwamoto T. Dearomative Cycloaddition of an Isolable Dialkylsilylene with Diaryl Ketones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200522] [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)
- Kenya Uchida
- Tohoku University: Tohoku Daigaku Chemistry 6-3 Aramakiazaaoba, Aoba-ku 9808578 Sendai JAPAN
| | - Shintaro Ishida
- Tohoku University: Tohoku Daigaku Chemistry 6-3 Aramakiazaaoba, Aoba-ku 9808578 Sendai JAPAN
| | - Takeaki Iwamoto
- Tohoku University Department of Chemistry, Graduate School of Science 6-3 Aramaki-aza-aoba, Aoba-ku 980-8578 Sendai JAPAN
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2
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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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3
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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; 61:e202110398. [PMID: 34670015 PMCID: PMC9298776 DOI: 10.1002/anie.202110398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [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 BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
| | - Luisa Giarrana
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
| | - Arseni Kostenko
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
| | - Tobias Gensch
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
| | - Shenglai Yao
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Technische Universität BerlinStrasse des 17. Juni 115, Sekr. C210623BerlinGermany
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4
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Pan Y, Morisako S, Aoyagi S, Sasamori T. Generation of Bis(ferrocenyl)silylenes from Siliranes. Molecules 2020; 25:molecules25245917. [PMID: 33327589 PMCID: PMC7765056 DOI: 10.3390/molecules25245917] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/16/2022] Open
Abstract
Divalent silicon species, the so-called silylenes, represent attractive organosilicon building blocks. Isolable stable silylenes remain scarce, and in most hitherto reported examples, the silicon center is stabilized by electron-donating substituents (e.g., heteroatoms such as nitrogen), which results in electronic perturbation. In order to avoid such electronic perturbation, we have been interested in the chemistry of reactive silylenes with carbon-based substituents such as ferrocenyl groups. Due to the presence of a divalent silicon center and the redox-active transition metal iron, ferrocenylsilylenes can be expected to exhibit interesting redox behavior. Herein, we report the design and synthesis of a bis(ferrocenyl)silirane as a precursor for a bis(ferrocenyl)silylene, which could potentially be used as a building block for redox-active organosilicon compounds. It was found that the isolated bis(ferrocenyl)siliranes could be a bottleable precursor for the bis(ferrocenyl)silylene under mild conditions.
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Affiliation(s)
- Yang Pan
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
| | - Shogo Morisako
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan;
| | - Shinobu Aoyagi
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
| | - Takahiro Sasamori
- Graduate School of Science, Nagoya City University, Nagoya, Aichi 467-8501, Japan; (Y.P.); (S.A.)
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan;
- Correspondence: ; Tel.: +81-29-853-4412
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5
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Ishida S, Uchida K, Mori M, Iwamoto T. Structures and Properties of Phenylene-Bridged 1,3-Diaza-2-silole and Related 2H
-Azasilirenes Obtained by the Reactions of a Dialkylsilylene with Arylnitriles. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shintaro Ishida
- Department of Chemistry; Graduate School of Science; Tohoku University; 980-8578 Aoba-ku Sendai Japan
| | - Kenya Uchida
- Department of Chemistry; Graduate School of Science; Tohoku University; 980-8578 Aoba-ku Sendai Japan
| | - Maiko Mori
- Department of Chemistry; Graduate School of Science; Tohoku University; 980-8578 Aoba-ku Sendai Japan
| | - Takeaki Iwamoto
- Department of Chemistry; Graduate School of Science; Tohoku University; 980-8578 Aoba-ku Sendai Japan
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6
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Baus JA, Tacke R. Neutral six-coordinate bis(dithiocarbamato)silicon(iv) complexes with an SiCl 2S 4 skeleton. Dalton Trans 2017; 46:8751-8755. [PMID: 27713941 DOI: 10.1039/c6dt03264h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of SiCl4 with lithium dithiocarbamates of the formula type Li[R2NCS2] (R = Ph, iPr) in a molar ratio of 1 : 2 afforded the respective six-coordinate silicon(iv) complexes [Ph2NCS2]2SiCl2 (3) and [iPr2NCS2]2SiCl2 (4), which were isolated as the solvates 3·MeCN and 4·MeCN. Compounds 3·MeCN and 4·MeCN were structurally characterised by single-crystal X-ray diffraction and multinuclear NMR spectroscopic studies in the solid state and in solution. In this study, dithiocarbamato ligands were implemented in silicon coordination chemistry for the first time. Compounds 3 and 4 represent the first six-coordinate silicon(iv) complexes with an SiCl2S4 skeleton.
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Affiliation(s)
- Johannes A Baus
- Universität Würzburg, Institut für Anorganische Chemie, Am Hubland, 97074 Würzburg, Germany.
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7
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Evidence of covalent synergy in silicon-sulfur-graphene yielding highly efficient and long-life lithium-ion batteries. Nat Commun 2015; 6:8597. [PMID: 26497228 PMCID: PMC4639807 DOI: 10.1038/ncomms9597] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 09/09/2015] [Indexed: 12/24/2022] Open
Abstract
Silicon has the potential to revolutionize the energy storage capacities of lithium-ion batteries to meet the ever increasing power demands of next generation technologies. To avoid the operational stability problems of silicon-based anodes, we propose synergistic physicochemical alteration of electrode structures during their design. This capitalizes on covalent interaction of Si nanoparticles with sulfur-doped graphene and with cyclized polyacrylonitrile to provide a robust nanoarchitecture. This hierarchical structure stabilized the solid electrolyte interphase leading to superior reversible capacity of over 1,000 mAh g−1 for 2,275 cycles at 2 A g−1. Furthermore, the nanoarchitectured design lowered the contact of the electrolyte to the electrode leading to not only high coulombic efficiency of 99.9% but also maintaining high stability even with high electrode loading associated with 3.4 mAh cm−2. The excellent performance combined with the simplistic, scalable and non-hazardous approach render the process as a very promising candidate for Li-ion battery technology. Silicon anodes are promising for lithium-ion battery development, but suffer from problems such as undesired volume expansion and solid-electrolyte interface formation. Here, the authors report a hierarchical silicon-sulfur-graphene composite anode which mitigates the problems leading to high performance.
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8
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Ciborska A, Conterosito E, Milanesio M, Kazimierczuk K, Rzymowska K, Brzozowski K, Dołęga A. The Syntheses and Crystal Structures of the First Disiloxane-1,3-dithiol and Its Cadmium Complex. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Kosai T, Ishida S, Iwamoto T. Transformation of azulenes to bicyclic [4]dendralene and heptafulvene derivatives via photochemical cycloaddition of dialkylsilylene. Chem Commun (Camb) 2015; 51:10707-9. [DOI: 10.1039/c5cc03424h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Regioselective cycloaddition of dialkylsilylene upon irradiation converts azulene and guaiazulene to bicyclic [4]dendralene and heptafulvene derivatives, respectively.
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Affiliation(s)
- Tomoyuki Kosai
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Shintaro Ishida
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Takeaki Iwamoto
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
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10
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Junold K, Sinner K, Baus JA, Burschka C, Fonseca Guerra C, Bickelhaupt FM, Tacke R. Reactions of the Donor-Stabilized Silylene Bis[N,N′-diisopropyl-benzamidinato(−)]silicon(II) with Brønsted Acids. Chemistry 2014; 20:16462-6. [DOI: 10.1002/chem.201404667] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/10/2022]
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11
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Junold K, Baus JA, Burschka C, Finze M, Tacke R. Selective C-H Bond Activation of 1,2-Dicarba-closo-dodecaborane by the Donor-Stabilized Silylene Bis[N,N′-diisopropylbenzamidinato(-)]silicon(II). Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402685] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Kämpfe A, Brendler E, Kroke E, Wagler J. 2-Acylpyrroles as mono-anionic O,N-chelating ligands in silicon coordination chemistry. Chemistry 2014; 20:9409-18. [PMID: 25043769 DOI: 10.1002/chem.201402803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/07/2022]
Abstract
Kryptopyrrole (2,4-dimethyl-3-ethylpyrrole) was acylated with, for example, benzoyl chloride to afford 2-benzoyl-3,5-dimethyl-4-ethylpyrrole (L(1)H). With SiCl4 this ligand reacts under liberation of HCl and formation of the complex L(1)2SiCl2. In related reactions with HSiCl3 or H2SiCl2, the same chlorosilicon complex is formed under liberation of HCl and H2 or liberation of H2, respectively. The chlorine atoms of L(1)2SiCl2 can be replaced by fluoride and triflate using ZnF2 and Me3Si-OTf, respectively. The use of a supporting base (triethylamine) is required for the complexation of phenyltrichlorosilane and diphenyldichlorosilane. The complexes L(1)2SiCl2, L(1)2SiF2, L(1)2Si(OTf)2, L(1)2SiPhCl, and L(1)2SiPh2 exhibit various configurations of the octahedral silicon coordination spheres (i.e. cis or trans configuration of the monodentate substituents, different orientations of the bidentate chelating ligands relative to each other). Furthermore, cationic silicon complexes L(1)3Si(+) and L(1) SiPh(+) were synthesized by chloride abstraction with GaCl3. In contrast, reaction of L(1)2SiCl2 with a third equivalent of L(1)H in the presence of excess triethylamine produced a charge-neutral hexacoordinate Si complex with a new tetradentate chelating ligand which formed by Si-templated C-C coupling of two ligands L(1).
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Affiliation(s)
- Alexander Kämpfe
- Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, 09596 Freiberg (Germany), Fax: (+49) 3731394058
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13
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Azhakar R, Ghadwal RS, Roesky HW, Hey J, Krause L, Stalke D. Mixed valence η6-arene cobalt(I) and cobalt(II) compound. Dalton Trans 2014; 42:10277-81. [PMID: 23732516 DOI: 10.1039/c3dt50939g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first carbonyl free mixed valence cobalt(I)/cobalt(II) compound [2{L2Co(I)(η(6)-C7H8)}](2+) [Co(II)2Cl6](2-) (1) [L = PhC(N(t)Bu)2SiCl] was obtained by the reaction of four equivalents of anhydrous CoCl2 with five equivalents of N-heterocyclic chlorosilylene L. In contrast, the reaction of L with CoBr2 yielded [L2CoBr2] (2). Compound 1 was formed by the cleavage of Co-Cl bonds, the reduction of Co(II) to Co(I) and by the coordination of a toluene molecule. The chlorosilylene (L) functions as a reducing agent as well as a neutral σ-donor ligand. The toluene molecule coordinates to the Co(I) atom in an η(6)-fashion.
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Affiliation(s)
- Ramachandran Azhakar
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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14
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Weiß J, Theis B, Baus JA, Burschka C, Bertermann R, Tacke R. Neutral Pentacoordinate Silicon(IV) Complexes with a Tridentate DianionicO,N,OorN,N,OLigand, an Anionic PhX Ligand (X = O, S, Se), and a Phenyl Group: Synthesis and Structural Characterization in the Solid State and in Solution. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300523] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Weicker SA, Dube JW, Ragogna PJ. Synthesis of Zwitterionic Group 14 Centered Complexes: Traditional Coordination and Unusual Insertion Chemistry. Organometallics 2013. [DOI: 10.1021/om400186m] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sarah A. Weicker
- Department of Chemistry and The Centre for Advanced
Materials and Biomaterials Research (CAMBR), The University of Western Ontario, 1151 Richmond Street, London, Ontario,
Canada N6A 5B7
| | - Jonathan W. Dube
- Department of Chemistry and The Centre for Advanced
Materials and Biomaterials Research (CAMBR), The University of Western Ontario, 1151 Richmond Street, London, Ontario,
Canada N6A 5B7
| | - Paul J. Ragogna
- Department of Chemistry and The Centre for Advanced
Materials and Biomaterials Research (CAMBR), The University of Western Ontario, 1151 Richmond Street, London, Ontario,
Canada N6A 5B7
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16
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Azhakar R, Roesky HW, Wolf H, Stalke D. On the Reactivity of the Silylene PhC(NtBu)2SiNPh2toward Organic Substrates. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300138] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Azhakar R, Roesky HW, Holstein JJ, Dittrich B. Reaction of the Silylene PhC(N
t
Bu)
2
Si
t
Bu with 4,4′‐Bis(dimethylamino)thiobenzophenone and Treatment of the Silylene PhC(N
t
Bu)
2
SiC(SiMe
3
)
3
with 3,5‐Di‐
tert
‐butyl‐
o
‐benzoquinone. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, http://www.uni‐goettingen.de/en/46240.html http://www.uni‐goettingen.de/de/71797.html
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, http://www.uni‐goettingen.de/en/46240.html http://www.uni‐goettingen.de/de/71797.html
| | - Julian J. Holstein
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, http://www.uni‐goettingen.de/en/46240.html http://www.uni‐goettingen.de/de/71797.html
| | - Birger Dittrich
- Institut für Anorganische und Angewandte Chemie, Universität Hamburg Martin‐Luther‐King‐Platz 6, 20146 Hamburg, Germany
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