1
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Dodonov VA, Kushnerova OA, Rumyantsev RV, Novikov AS, Osmanov VK, Fedushkin IL. Cycloaddition of isoselenocyanates to sodium and magnesium metallacycles. Dalton Trans 2022; 51:4113-4121. [PMID: 35187552 DOI: 10.1039/d1dt04366h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Heterocumulenes SeCNR (R = C6H4OMe-2, C6H4Me-2) undergo facile cycloaddition to [(H-dpp-bian)Na(Et2O)2] (1) (H-dpp-bian = N-protonated 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) resulting in cycloadducts [(H-dpp-bian)Na(SeCNR)(DME)] (2, 3), which are the first cycloadducts derived from a sodium metallacycle reported so far. A comparative reaction of [(dpp-bian)Mg(THF)3] (10) with SeCNR gives magnesium cycloadducts [(dpp-bian)Mg(SeCNR)(Solv)2] (11, 12), which undergo fast decomposition at room temperature. New compounds are characterized by NMR, EPR, and IR spectroscopy, and elemental and X-ray diffraction analysis. Their electronic structures and reaction pathways were probed using DFT calculations.
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Affiliation(s)
- Vladimir A Dodonov
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences. Tropinina str. 49, N. Novgorod 603137, Russia.
| | - Olga A Kushnerova
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences. Tropinina str. 49, N. Novgorod 603137, Russia.
| | - Roman V Rumyantsev
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences. Tropinina str. 49, N. Novgorod 603137, Russia.
| | - Alexander S Novikov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab., 7/9, Saint Petersburg 199034, Russia.
| | - Vladimir K Osmanov
- Nizhny Novgorod State Technical University. Minina str. 24, N. Novgorod 603155, Russia.
| | - Igor L Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences. Tropinina str. 49, N. Novgorod 603137, Russia.
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2
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Bourque JL, Nanni RA, Biesinger MC, Baines KM. Synthesis and Reactivity of Cationic Gallium(I) [12]Crown-4 Complexes. Inorg Chem 2021; 60:14713-14720. [PMID: 34542994 DOI: 10.1021/acs.inorgchem.1c01801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis and reactivity of a gallium(I) cationic complex using [12]crown-4 as a stabilizing ligand were explored. The synthesis of [Ga([12]crown-4)][GaCl4] was achieved in one step from commercially available starting materials. Anion exchange was utilized to replace the reactive tetrachlorogallate anion for the perfluorophenylborate anion. [Ga([12]crown-4)][B(C6F5)4] was analyzed using XPS, which allowed for the classification of the gallium(I)-crown ether complex as electron-deficient. Reactions of the gallium(I)-crown ether complex with Cp*K and cryptand[2.2.2] demonstrated the facile synthesis of a known gallium(I) compound as well as the generation of new gallium(I) complexes, highlighting the use of the gallium(I)-crown ether complex as an effective starting material for new gallium(I) complexes.
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Affiliation(s)
- Jeremy L Bourque
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
| | - Robert A Nanni
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
| | - Mark C Biesinger
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7.,Surface Science Western, University of Western Ontario, London, Ontario, Canada N6G 0J3
| | - Kim M Baines
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
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3
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Dodonov VA, Chen W, Liu L, Sokolov VG, Baranov EV, Skatova AA, Zhao Y, Wu B, Yang XJ, Fedushkin IL. Reactions of Iso(thio)cyanates with Dialanes: Cycloaddition, Reductive Coupling, or Cleavage of the C═S or C═O Bond. Inorg Chem 2021; 60:14602-14612. [PMID: 34551514 DOI: 10.1021/acs.inorgchem.1c01581] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The dialanes [(dpp-Bian)Al-Al(dpp-Bian)] (1) and [(dpp-dad)Al(THF)-(THF)Al(dpp-dad)] (2) (dpp-Bian = 1,2-[(2,6-iPr2C6H3)NC]2C12H6, dpp-dad = [(2,6-iPr2C6H3)NC(CH3)]2) react with some isothiocyanates, isocyanates, and diphenylketene via [2 + 4] cycloaddition of the C═O or C═S bond across the C═C-N-Al fragment to afford complexes [L(X═C-Y)Al-Al(X═C-Y)L] with an intact Al-Al single bond (3, L = dpp-Bian, X = PhN, Y = O; 4, L = dpp-Bian, X = Ph2C, Y = O; 6, L = dpp-dad, X = BnN, Y = S; 7, L = dpp-dad, X = tBuN, Y = O; 8, L = dpp-dad, X = iPrN, Y = S; and 9, L = dpp-dad, X = CyN, Y = S). A mixed C═N and C═O mode cycloadduct, [(dpp-Bian)(TosN═C-O)Al-Al(TosN-C═O)(dpp-Bian)] 5, was obtained in the reaction of 1 with tosylisocyanate. Heating the solution of 3 resulted in a thermal transformation and a change of the cycloaddition mode from C═O to C═N to give the product [(dpp-Bian)(PhN-C═O)Al(O)Al(PhN-C═O)(dpp-Bian)] 10. The reduction of 7 and 8 with Na yielded the products [Na(THF)n]2[(dpp-dad-H)(X═C-Y)Al]2 (12, X = iPrN, Y = S, n = 2 and 13, X = tBuN, Y = O, n = 3) in which one of the methyl groups of the backbone of the initial dpp-dad ligand was dehydrogenated. When 2 was reacted with the bulky adamantyl isocyanate AdNCO, the C-C coupling of two substrates occurred to form 14 [(dpp-dad)Al(O═C-NAd)2Al(dpp-dad)] in which the coupled dianionic oxamide ligand bridged two Al atoms in a μ,η4-N,O/N,O mode. Moreover, in the presence of 2.0 equiv of Na metal, precursor 2 reacts with tBuNCS, p-TolylNCS, or Me3SiNCO, possibly through the reduced AlI intermediate, to yield the sulfur- or oxygen-bridged dimer [Na(solv)n]2[(dpp-dad)Al(μ-E)]2 (15, E = S, solv = THF, n = 3 and 16, E = O, solv = DME, n = 2) upon C═S or C═O bond cleavage. Dialane 1 reacts with dimethylsulfone to give a Lewis adduct [(dpp-Bian)(Me2SO2)Al]2 (17), which releases dimethylsulfone upon heating. The diamagnetic compounds 3-10 and 12-17 were characterized by NMR and IR spectroscopy. The molecular structures of 3-17 were established by single-crystal X-ray diffraction analysis. Electronic structures of the compounds and possible isomers have been examined by DFT calculations.
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Affiliation(s)
- Vladimir A Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Weixing Chen
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Li Liu
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Vladimir G Sokolov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Evgeny V Baranov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Alexandra A Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation
| | - Yanxia Zhao
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Biao Wu
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Xiao-Juan Yang
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences (IOMC RAS), Tropinina 49, Nizhny Novgorod 603950, Russian Federation.,College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
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4
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Sharma MK, Wölper C, Haberhauer G, Schulz S. Reversible and Irreversible [2+2] Cycloaddition Reactions of Heteroallenes to a Gallaphosphene. Angew Chem Int Ed Engl 2021; 60:21784-21788. [PMID: 34324782 PMCID: PMC8519123 DOI: 10.1002/anie.202108370] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/28/2021] [Indexed: 12/11/2022]
Abstract
[2+2] Cycloaddition reactions of gallaphosphene L(Cl)GaPGaL 1 (L=HC[C(Me)N(2,6-i-Pr2 C6 H3 )]2 ) with carbodiimides [C(NR)2 ; R=i-Pr, Cy] and isocyanates [RNCO; R=Et, i-Pr, Cy] yielded four-membered metallaheterocycles LGa(Cl)P[μ-C(X)NR]GaL (X=NR, R=i-Pr 2, Cy 3; X=O, R=Et 4, i-Pr 5, Cy 6). Compounds 4-6 reversibly react with CO2 via [2+2] cycloaddition at ambient temperature to the six-membered metallaheterocycles LGa(Cl)P[μ-C(O)O]-μ-C(O)N(R)GaL (R=Et 7, i-Pr 8, Cy 9). Compounds 2-9 were characterized by IR and heteronuclear (1 H, 13 C{1 H}, 31 P{1 H}) NMR spectroscopy and elemental analysis, while quantum chemical calculations provided a deeper understanding on the energetics of the reactions.
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Affiliation(s)
- Mahendra K. Sharma
- Institute of Inorganic Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE)University of Duisburg-EssenUniversitätsstrasse 5–745141EssenGermany
| | - Christoph Wölper
- Institute of Inorganic Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE)University of Duisburg-EssenUniversitätsstrasse 5–745141EssenGermany
| | - Gebhard Haberhauer
- Institute of Organic ChemistryUniversity of Duisburg-EssenUniversitätsstrasse 5–745141EssenGermany
| | - Stephan Schulz
- Institute of Inorganic Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE)University of Duisburg-EssenUniversitätsstrasse 5–745141EssenGermany
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5
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Sharma MK, Wölper C, Haberhauer G, Schulz S. Reversible und irreversible [2+2]‐Cycloadditionen von Heteroallenen an ein Gallaphosphen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mahendra K. Sharma
- Institut für Anorganische Chemie und Center for Nanointegration Duisburg-Essen (CENIDE) Universität Duisburg-Essen Universitätsstraße 5–7 45141 Essen Deutschland
| | - Christoph Wölper
- Institut für Anorganische Chemie und Center for Nanointegration Duisburg-Essen (CENIDE) Universität Duisburg-Essen Universitätsstraße 5–7 45141 Essen Deutschland
| | - Gebhard Haberhauer
- Institut für Organische Chemie Universität Duisburg-Essen Universitätsstraße 5–7 45141 Essen Deutschland
| | - Stephan Schulz
- Institut für Anorganische Chemie und Center for Nanointegration Duisburg-Essen (CENIDE) Universität Duisburg-Essen Universitätsstraße 5–7 45141 Essen Deutschland
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6
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Yanagisawa T, Mizuhata Y, Tokitoh N. A Novel Reactivity of Phosphanylalumane (>P-Al<): Reversible Addition of a Saturated Interelement Bond to Olefins. Chemistry 2021; 27:11273-11278. [PMID: 34105846 DOI: 10.1002/chem.202101649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Indexed: 11/09/2022]
Abstract
The reversible addition of olefins to a phosphanylalumane, P-Al single-bond species, was investigated. The P-Al bond added to ethylene and relatively small terminal alkenes (propylene and hex-1-ene) at room temperature to give the corresponding alkene adducts. Heating the terminal alkene adducts released the corresponding alkenes and regenerated the P-Al bond, but no release of ethylene was observed even under vacuum conditions. The reactivity of ethylene adduct as a new saturated C2 vicinal P/Al-based FLP was also investigated. The ethylene adduct was found to undergo complexation with nitriles to give the corresponding nitrile adducts to the Al center, which retained the ethylene tether as in the case of the corresponding P/B-based FLP. However, the reactivity of ethylene toward CO2 and benzaldehyde differed from that of the P/B system giving the corresponding adducts.
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Affiliation(s)
- Tatsuya Yanagisawa
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Integrated Research Consortium on Chemical Sciences, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Integrated Research Consortium on Chemical Sciences, Gokasho, Uji, Kyoto, 611-0011, Japan
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7
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Abstract
Since the discovery that the so-called "double-bond" rule could be broken, the field of molecular main group multiple bonds has expanded rapidly. With the majority of homodiatomic double and triple bonds realised within the p-block, along with many heterodiatomic combinations, this Minireview examines the reactivity of these compounds with a particular emphasis on small molecule activation. Furthermore, whilst their ability to act as transition metal mimics has been explored, their catalytic behaviour is somewhat limited. This Minireview aims to highlight the potential of these complexes towards catalytic application and their role as synthons in further functionalisations making them a versatile tool for the modern synthetic chemist.
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Affiliation(s)
- Catherine Weetman
- WestCHEMDepartment of Pure and Applied ChemistryUniversity of StrathclydeGlasgowG1 1XLUK
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8
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Kysliak O, Görls H, Kretschmer R. Cooperative Bond Activation by a Bimetallic Main-Group Complex. J Am Chem Soc 2021; 143:142-148. [PMID: 33356229 DOI: 10.1021/jacs.0c12166] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inspired by natural metalloenzymes that efficiently catalyze a variety of transformations, chemists have developed large numbers of dinuclear transition-metal complexes with extraordinary properties and reactivity patterns. For main-group element compounds, however, metal-metal cooperativity is much less explored. Here we present the synthesis and characterization of a room-temperature-stable compound with two separated two-coordinated gallium(I) centers possessing both a lone pair of electrons and a vacant orbital, reminiscent of singlet carbenes. This species displays enhanced reactivity compared to its mononuclear counterpart due to bimetallic cooperativity that allows for the facile activation of strong C-F bonds across the gallium-gallium bond. Two mechanistic scenarios of the cooperative bond activation have been identified by DFT and DLPNO-CCSD(T) calculations.
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Affiliation(s)
- Oleksandr Kysliak
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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9
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Susukida K, Lugo-Fuentes LI, Matsumae S, Nakanishi K, Nakamoto M, Yamamoto Y, Shang R, Barroso-Flores J, Jimenez-Halla JOC. A Digallane Gold Complex with a 12-Electron Auride Center: Synthesis and Computational Studies. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kohei Susukida
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Leonardo I. Lugo-Fuentes
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, campus Gto, Noria Alta s/n, 36050 Guanajuato, Mexico
| | - Shozo Matsumae
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Kazuki Nakanishi
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Masaaki Nakamoto
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Yohsuke Yamamoto
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Rong Shang
- Department of Chemistry, Graduate School of Advanced Engineering and Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Joaquín Barroso-Flores
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Unidad San Cayetano, Carretera Toluca-Atlacomulco Km. 14.5, 50200 Toluca de Lerdo, México
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, México
| | - J. Oscar C. Jimenez-Halla
- Department of Chemistry, Division of Natural and Exact Sciences, University of Guanajuato, campus Gto, Noria Alta s/n, 36050 Guanajuato, Mexico
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10
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Riu MLY, Cummins CC. 3,5-Diphenyl-2-phosphafuran: Synthesis, Structure, and Thermally Reversible [4 + 2] Cycloaddition Chemistry. J Org Chem 2020; 85:14810-14816. [PMID: 33161714 DOI: 10.1021/acs.joc.0c02025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Treatment of trans-chalcone with dibenzo-7-phosphanorbornadiene EtOPA (A = C14H10, anthracene), a source of ethoxyphosphinidene, followed by formal elimination of ethanol yields 3,5-diphenyl-2-phosphafuran (DPF) in 43% yield. We show that the phosphadiene moiety of DPF is a potent diene in the Diels-Alder reaction and reacts with dienophiles dimethyl acetylenedicarboxylate (DPF·DMAD, 68%), norbornene (DPF·norbornene, 73%), and ethylene (DPF·C2H4, 80%) under ambient conditions. Mild heating of DPF·C2H4 results in the corresponding retro-Diels-Alder reaction, establishing DPF as a molecule that is able to reversibly bind ethylene.
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Affiliation(s)
- Martin-Louis Y Riu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher C Cummins
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Weetman C, Porzelt A, Bag P, Hanusch F, Inoue S. Dialumenes - aryl vs. silyl stabilisation for small molecule activation and catalysis. Chem Sci 2020; 11:4817-4827. [PMID: 34122939 PMCID: PMC8159210 DOI: 10.1039/d0sc01561j] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Main group multiple bonds have proven their ability to act as transition metal mimics in the last few decades. However, catalytic application of these species is still in its infancy. Herein we report the second neutral NHC-stabilised dialumene species by use of a supporting aryl ligand (3). Different to the trans-planar silyl-substituted dialumene (3Si), compound 3 features a trans-bent and twisted geometry. The differences between the two dialumenes are explored computationally (using B3LYP-D3/6-311G(d)) as well as experimentally. A high influence of the ligand's steric demand on the structural motif is revealed, giving rise to enhanced reactivity of 3 enabled by a higher flexibility in addition to different polarisation of the aluminium centres. As such, facile activation of dihydrogen is now achievable. The influence of ligand choice is further implicated in two different catalytic reactions; not only is the aryl-stabilised dialumene more catalytically active but the resulting product distributions also differ, thus indicating the likelihood of alternate mechanisms simply through a change of supporting ligand. Ligand controlled reactivity: a trans-bent and twisted geometry enables dihydrogen activation and enhanced catalytic activity for NHC-stabilised dialumenes.![]()
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Affiliation(s)
- Catherine Weetman
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München Lichtenbergstra βe 4 85748 Garching bei München Germany
| | - Amelie Porzelt
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München Lichtenbergstra βe 4 85748 Garching bei München Germany
| | - Prasenjit Bag
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München Lichtenbergstra βe 4 85748 Garching bei München Germany
| | - Franziska Hanusch
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München Lichtenbergstra βe 4 85748 Garching bei München Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München Lichtenbergstra βe 4 85748 Garching bei München Germany
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12
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Ni X, Zhou Y, Sethi G, Liu F. π-Orbital Yin–Yang Kagome bands in anilato-based metal–organic frameworks. Phys Chem Chem Phys 2020; 22:25827-25832. [DOI: 10.1039/d0cp03941a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
π-Orbital Yin–Yang Kagome bands consisting of two flat bands with opposite Chern numbers have been disclosed in anilato-based metal–organic frameworks.
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Affiliation(s)
- Xiaojuan Ni
- Department of Materials Science and Engineering
- University of Utah
- Salt Lake
- USA
| | - Yinong Zhou
- Department of Materials Science and Engineering
- University of Utah
- Salt Lake
- USA
| | - Gurjyot Sethi
- Department of Materials Science and Engineering
- University of Utah
- Salt Lake
- USA
| | - Feng Liu
- Department of Materials Science and Engineering
- University of Utah
- Salt Lake
- USA
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13
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Dodonov VA, Chen W, Zhao Y, Skatova AA, Roesky PW, Wu B, Yang XJ, Fedushkin IL. Gallium "Shears" for C=N and C=O Bonds of Isocyanates. Chemistry 2019; 25:8259-8267. [PMID: 30892746 DOI: 10.1002/chem.201900517] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Indexed: 11/08/2022]
Abstract
Digallane [L1 Ga-GaL1 ] (1, L1 =dpp-bian=1,2-[(2,6-iPr2 C6 H3 )NC]2 C12 H6 ) reacts with RN=C=O (R=Ph or Tos) by [2+4] cycloaddition of the isocyanate C=N bonds across both of its C=C-N-Ga fragments to afford [L1 (O=C-NR)Ga-Ga(RN-C=O)L1 ] (R=Ph, 3; R=Tos, 4). The reactions with both isocyanates result in new C-C and N-Ga single bonds. In the case of allyl isocyanate, the [2+4] cycloaddition across one C=C-N-Ga fragment of 1 is accompanied by insertion of a second allyl isocyanate molecule into the Ga-N bond of the same fragment to afford compound [L1 Ga-Ga(AllN- C=O)2 L1 ] (5) (All=allyl). In the presence of Na metal, the related digallane [L2 Ga-GaL2 ] (2; L2 =dpp-dad=[(2,6-iPr2 C6 H3 )NC(CH3 )]2 ) is converted into the gallium(I) carbene analogue [L2 Ga:]- (2 A), which undergoes a variety of reactions with isocyanate substrates. These include the cycloaddition of ethyl isocyanate to 2 A affording [Na2 (THF)5 ]{L2 Ga[EtN-C(O)]2 GaL2 } (6), cleavage of the N=C bond with release of 1 equiv. of CO to give [Na(THF)2 ]2 [L2 Ga(p-MeC6 H4 )(N-C(O))2 -N(p-MeC6 H4 )]2 (7), cleavage of the C=O bond to yield the di-O-bridged digallium compound [Na(THF)3 ]2 [L2 Ga-(μ-O)2 -GaL2 ] (8), and generation of the further addition product [Na2 (THF)5 ][L2 Ga(CyNCO2 )]2 (9). Complexes 3-9 have been characterized by NMR (1 H, 13 C), IR spectroscopy, elemental analysis, and X-ray diffraction analysis. Their electronic structures have been examined by DFT calculations.
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Affiliation(s)
- Vladimir A Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry, of Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia.,Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Weixing Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Yanxia Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Alexandra A Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry, of Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry, of Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia.,Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China
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14
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Kassymbek A, Britten JF, Spasyuk D, Gabidullin B, Nikonov GI. Interaction of Multiple Bonds with NacNacGa: Oxidative Cleavage vs Coupling and Cyclization. Inorg Chem 2019; 58:8665-8672. [DOI: 10.1021/acs.inorgchem.9b01005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aishabibi Kassymbek
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - James F. Britten
- Department of Chemistry, McMaster University, Hamilton, Ontario, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada
| | - Denis Spasyuk
- SM and MX Crystallography, Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2 V3, Canada
| | - Bulat Gabidullin
- X-ray Core Facility, Faculty of Science, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada
| | - Georgii I. Nikonov
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
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15
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Bakewell C, White AJP, Crimmin MR. Reversible alkene binding and allylic C-H activation with an aluminium(i) complex. Chem Sci 2019; 10:2452-2458. [PMID: 30881673 PMCID: PMC6388093 DOI: 10.1039/c8sc04865g] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/04/2019] [Indexed: 11/21/2022] Open
Abstract
The monomeric molecular aluminium(i) complex 1 [{(ArNCMe)2CH}Al] (Ar = 2,6-di-iso-propylphenyl) reacts with a series of terminal and strained alkenes including ethylene, propylene, allylbenzene and norbornene to form alkene bound products.
The monomeric molecular aluminium(i) complex 1 [{(ArNCMe)2CH}Al] (Ar = 2,6-di-iso-propylphenyl) reacts with a series of terminal and strained alkenes including ethylene, propylene, allylbenzene and norbornene to form alkene bound products. Remarkably all these reactions are reversible under mild conditions (298–353 K) with alkene binding being disfavoured at higher temperatures due to the positive reaction entropy. Van't Hoff analyses have allowed quantification of the binding events with . Calculations and single crystal X-ray diffraction studies are consistent with the alkene bound species being metallocyclopropane complexes. Alkene binding involves a reversible redox process with changes from the +1 to +3 aluminium oxidation state. Under more forcing conditions the metallocyclopropane complexes undergo non-reversible allylic C–H bond activation to generate aluminium(iii) allyl hydride complexes. This represents a rare example of redox-based main group reactivity in which reversible substrate binding is followed by a further productive bond breaking event. Analysis of the mechanism reveals a reaction network in which alkene dissociation and reformation of 1 is required for allylic C–H activation, a realisation that has important implications for the long-term goal of developing redox-based catalytic cycles with main group compounds.
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Affiliation(s)
- Clare Bakewell
- Department of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
| | - Andrew J P White
- Department of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
| | - Mark R Crimmin
- Department of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
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16
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Schwamm RJ, Anker MD, Lein M, Coles MP. Reduction vs. Addition: The Reaction of an Aluminyl Anion with 1,3,5,7-Cyclooctatetraene. Angew Chem Int Ed Engl 2018; 58:1489-1493. [PMID: 30548141 DOI: 10.1002/anie.201811675] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/13/2018] [Indexed: 11/10/2022]
Abstract
The potassium aluminyl complex K[Al(NONAr )] (NON=NONAr =[O(SiMe2 NAr)2 ]2- , Ar=2,6-iPr2 C6 H3 ) reacts with 1,3,5,7-cyclooctatetraene (COT) to give K[Al(NONAr )(COT)]. The COT-ligand is present in the asymmetric unit as a planar μ2 -η2 :η8 -bridge between Al and K, with additional K⋅⋅⋅π-aryl interactions to neighboring molecules that generate a helical chain. DFT calculations indicate significant aromatic character, consistent with reduction to [COT]2- . Addition of 18-crown-6 causes a rearrangement of the C8 -carbocycle to form the isomeric 9-aluminabicyclo[4.2.1]nona-2,4,7-triene anion.
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Affiliation(s)
- Ryan J Schwamm
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand
| | - Mathew D Anker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand
| | - Matthias Lein
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand
| | - Martyn P Coles
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand
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17
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Stennett TE, Mattock JD, Pentecost L, Vargas A, Braunschweig H. Chelated Diborenes and Their Inverse-Electron-Demand Diels-Alder Reactions with Dienes. Angew Chem Int Ed Engl 2018; 57:15276-15281. [PMID: 30204298 DOI: 10.1002/anie.201809217] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Indexed: 01/06/2023]
Abstract
A doubly base-stabilised diborane based on a benzylphosphine linker was prepared by a salt elimination reaction between 2-LiC6 H4 CH2 PCy2 ⋅Et2 O and B2 Br4 . This compound was reduced with KC8 to its corresponding diborene, with the benzylphosphine forming a five-membered chelate. The diborene reacts with butadiene, 2-trimethylsiloxy-1,3-butadiene, and isoprene to form 4,5-diboracyclohexenes, which interconvert between their 1,1- (geminal) and 1,2- (vicinal) chelated isomers. The 1,1-chelated diborene undergoes a halide-catalysed isomerisation into its thermodynamically favoured 1,2-isomer, which undergoes Diels-Alder reactions more slowly than the kinetic product.
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Affiliation(s)
- Tom E Stennett
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070, Würzburg, Germany
| | - James D Mattock
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, Sussex, UK
| | - Leanne Pentecost
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, Sussex, UK
| | - Alfredo Vargas
- Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, BN1 9QJ, Sussex, UK
| | - Holger Braunschweig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070, Würzburg, Germany
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18
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Stennett TE, Mattock JD, Pentecost L, Vargas A, Braunschweig H. Chelatisierte Diborene und ihre Diels‐Alder‐Reaktionen mit Dienen unter inversem Elektronenbedarf. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809217] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Tom E. Stennett
- Institute für Anorganische ChemieJulius-Maximilians-Universität Würzburg Am Hubland 97070 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97070 Würzburg Deutschland
| | - James D. Mattock
- Department of ChemistrySchool of Life SciencesUniversity of Sussex Brighton BN1 9QJ Sussex Großbritannien
| | - Leanne Pentecost
- Department of ChemistrySchool of Life SciencesUniversity of Sussex Brighton BN1 9QJ Sussex Großbritannien
| | - Alfredo Vargas
- Department of ChemistrySchool of Life SciencesUniversity of Sussex Brighton BN1 9QJ Sussex Großbritannien
| | - Holger Braunschweig
- Institute für Anorganische ChemieJulius-Maximilians-Universität Würzburg Am Hubland 97070 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg Am Hubland 97070 Würzburg Deutschland
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19
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Zhang W, Dodonov VA, Chen W, Zhao Y, Skatova AA, Fedushkin IL, Roesky PW, Wu B, Yang XJ. Cycloaddition versus Cleavage of the C=S Bond of Isothiocyanates Promoted by Digallane Compounds with Noninnocent α-Diimine Ligands. Chemistry 2018; 24:14994-15002. [PMID: 30016556 DOI: 10.1002/chem.201802469] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/02/2018] [Indexed: 11/11/2022]
Abstract
Whereas the chemistry of single-bond activation by compounds of the main group elements has undergone some development in recent years, the cleavage of multiple bonds remains underexplored. Herein, the reactions of two digallanes bearing α-diimine ligands, namely, [L1 Ga-GaL1 ] (1, L1 =dpp-dad=[(2,6-iPr2 C6 H3 )NC(CH3 )]2 ) and [L2 Ga-GaL2 ] (2, L2 =dpp-bian=1,2-[(2,6-iPr2 C6 H3 )NC]2 C10 H6 ), with isothiocyanates are reported. Reactions of 1 or 2 with isothiocyanates in 1:2 molar ratio proceeded with [2+4] cycloaddition of the C=S bond across the C2 N2 Ga metallacycle with formation of C-C and S-Ga single bonds to afford [L1 (RN=C-S)Ga-Ga(S-C=NR)L1 ] (3, R=Me; 4, R=Ph) and [L2 (RN=C-S)Ga-Ga(S-C=NR)L2 ] (8, R=allyl; 9, R=Ph). In the cases of 8 and 9, this cycloaddition is reversible. The digallanes reacted with 2 equiv of PhNCS in the presence of Na metal or at high temperatures through a unique reductive cleavage of the C=S bond to yield the disulfide-bridged digallium species [Na(THF)3 ]2 [L1 Ga(μ-S)2 GaL1 ] (5), [L2 Ga(μ-S)2 GaL2 ] (10), and [Na(DME)3 ][L2 Ga(μ-S)2 GaL2 ] (11). Moreover, products 4 and 5 can further react with an excess of isothiocyanate, through cleavage of the C=S bond or cycloaddition, to give the bis- or mono-S-bridged complexes [Na(THF)2 ]2 [L1 (PhN=C-S)Ga(μ-S)2 Ga(S-C=NPh)L1 ] (6) and [L1 (PhN=C-S)Ga(μ-S)Ga(S-C=NPh)L1 ] (7). All the newly prepared compounds were characterized by elemental analysis, single-crystal X-ray diffraction, IR spectroscopy, NMR (3-9) or ESR spectroscopy (11), and DFT calculations.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Vladimir A Dodonov
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia.,Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Weixing Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Yanxia Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Alexandra A Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of, Russian Academy of Sciences, Tropinina str. 49, Nizhny Novgorod, 603137, Russia
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
| | - Xiao-Juan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of, the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, P. R. China
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20
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Bag P, Weetman C, Inoue S. Isolierung schwer fassbarer Komplexe mit einer Aluminium-Element-Mehrfachbindung: Am Horizont zeichnet sich eine neue Aluminiumchemie ab. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803900] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Prasenjit Bag
- Department Chemie; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Deutschland
| | - Catherine Weetman
- Department Chemie; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Deutschland
| | - Shigeyoshi Inoue
- Department Chemie; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Deutschland
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21
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Bag P, Weetman C, Inoue S. Experimental Realisation of Elusive Multiple-Bonded Aluminium Compounds: A New Horizon in Aluminium Chemistry. Angew Chem Int Ed Engl 2018; 57:14394-14413. [DOI: 10.1002/anie.201803900] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Prasenjit Bag
- Department of Chemistry; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Catherine Weetman
- Department of Chemistry; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Shigeyoshi Inoue
- Department of Chemistry; WACKER-Institute of Silicon Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstraße 4 85748 Garching bei München Germany
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22
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Lu JS, Yang MC, Su MD. Is It Possible To Prepare and Stabilize Triple-Bonded Thallium≡Antimony Molecules Using Substituents? ACS OMEGA 2018; 3:10163-10171. [PMID: 31459144 PMCID: PMC6644622 DOI: 10.1021/acsomega.8b00643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
The M06-2X/Def2-TZVP, B3PW91/Def2-TZVP, and B3LYP/LANL2DZ+dp levels of theory were used to investigate the effect of substituents on the stability of the triple-bonded RTl≡SbR molecule. For comparison, small groups (F, OH, H, CH3, and SiH3) and sterically bulky substituents, (Ar* (=C6H3-2,6-(C6H2-2,4,6-i-Pr3)2), Tbt (=C6H2-2,4,6-{CH(SiMe3)2}3), SiiPrDis2, and SiMe(SitBu3)2), were chosen for the present study. The density functional theory results indicate that the triple-bonded RTl≡SbR compounds with small ligands are transient intermediates, so their experimental detections should be extremely difficult. Nevertheless, the theoretical observations demonstrate that only the bulkier ligands can effectively stabilize the central Tl≡Sb triple bond. In addition, the valence-electron bonding model reveals that the bonding characters of the triple-bonded RTl≡SbR species possessing sterically bulky groups can be represented as RTl ← SbR. Nevertheless, on the basis of the natural resonance theory, the natural bond orbital, and the charge decomposition analysis, the theoretical observations suggest that the Tl≡Sb triple bond in the acetylene analogues, RTl≡SbR, should be very weak.
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Affiliation(s)
- Jia-Syun Lu
- Department
of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
| | - Ming-Chung Yang
- Department
of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
| | - Ming-Der Su
- Department
of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung
Medical University, Kaohsiung 80708, Taiwan
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23
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Boutland AJ, Carroll A, Alvarez Lamsfus C, Stasch A, Maron L, Jones C. Reversible Insertion of a C═C Bond into Magnesium(I) Dimers: Generation of Highly Active 1,2-Dimagnesioethane Compounds. J Am Chem Soc 2017; 139:18190-18193. [DOI: 10.1021/jacs.7b11368] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Aaron J. Boutland
- School
of Chemistry, Monash University, P.O. Box 23, Melbourne, VIC 3800, Australia
| | - Ashlea Carroll
- School
of Chemistry, Monash University, P.O. Box 23, Melbourne, VIC 3800, Australia
| | - Carlos Alvarez Lamsfus
- Université de Toulouse et CNRS, INSA, UPS, UMR 5215, LPCNO, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Andreas Stasch
- School
of Chemistry, Monash University, P.O. Box 23, Melbourne, VIC 3800, Australia
| | - Laurent Maron
- Université de Toulouse et CNRS, INSA, UPS, UMR 5215, LPCNO, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Cameron Jones
- School
of Chemistry, Monash University, P.O. Box 23, Melbourne, VIC 3800, Australia
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24
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Bag P, Porzelt A, Altmann PJ, Inoue S. A Stable Neutral Compound with an Aluminum-Aluminum Double Bond. J Am Chem Soc 2017; 139:14384-14387. [PMID: 28898060 DOI: 10.1021/jacs.7b08890] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Homodinuclear multiple-bonded neutral Al compounds, aluminum analogues of alkenes, have been a notoriously difficult synthetic target over the past several decades. Herein, we report the isolation of a stable neutral compound featuring an Al═Al double bond stabilized by N-heterocyclic carbenes. X-ray crystallographic and spectroscopic analyses demonstrate that the dialuminum entity possesses trans-planar geometry and an Al-Al bond length of 2.3943(16) Å, which is the shortest distance reported for a molecular dialuminum species. This new species reacts with ethylene and phenyl acetylene to give the [2+2] cycloaddition products. The structure and bonding were also investigated by detailed density functional theory calculations. These results clearly demonstrate the presence of an Al═Al double bond in this molecule.
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Affiliation(s)
- Prasenjit Bag
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Amelie Porzelt
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Philipp J Altmann
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Shigeyoshi Inoue
- 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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25
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Ghiasi R, Heidarbeigi A. Substituent effect on the structure and properties of dialumene. RUSS J INORG CHEM+ 2016. [DOI: 10.1134/s0036023616080088] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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McCrea-Hendrick ML, Caputo CA, Roberts CJ, Fettinger JC, Tuononen HM, Power PP. Reactions of Terphenyl-Substituted Digallene AriPr4GaGaAriPr4 (AriPr4 = C6H3-2,6-(C6H3-2,6-iPr2)2) with Transition Metal Carbonyls and Theoretical Investigation of the Mechanism of Addition. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00992] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Madison L. McCrea-Hendrick
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Christine A. Caputo
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Christopher J. Roberts
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box
35, Jyväskylä FI-40014, Finland
| | - James C. Fettinger
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue, Davis, California 95616, United States
| | - Heikki M. Tuononen
- Department
of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box
35, Jyväskylä FI-40014, Finland
| | - Philip P. Power
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue, Davis, California 95616, United States
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27
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Thomsen MK, Dange D, Jones C, Overgaard J. Chemical bonding and electronic localization in a Ga(I) amide. Chemistry 2015; 21:14460-70. [PMID: 26296814 DOI: 10.1002/chem.201500760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/08/2015] [Indexed: 11/07/2022]
Abstract
The electron density in a one-coordinate [Ga(I) N(SiMe3 )R] complex has been determined from ab initio calculations and multipole modeling of 90 K X-ray data. The topologies of the Laplacian distribution and the ELI-D match a situation having an sp(3) -hybridized nitrogen with a tetrahedral arrangement of two single σ-bonds (to carbon and silicon) and two lone pairs pointing towards gallium in a scissor-grasping fashion. The analysis of the Laplacian distribution furthermore reveals a ligand-induced charge concentration (LICC) in the outer core of gallium oriented directly towards the nitrogen atom, and thus in between the two lone pairs. These observations might suggest that the trigonal planar nitrogen geometry result from a dative GaN bond, in which the roles of the metal and the ligand have been reversed with respect to a "standard" metal-ligand interaction, that is, the metal is here electron-donating. The ELI-D reveals a diffuse and directional lone pair on gallium, suggesting that this complex could serve as a σ-donor.
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Affiliation(s)
- Maja K Thomsen
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark)
| | - Deepak Dange
- School of Chemistry, Monash University, Melbourne, VIC, 3800 (Australia)
| | - Cameron Jones
- School of Chemistry, Monash University, Melbourne, VIC, 3800 (Australia)
| | - Jacob Overgaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus (Denmark).
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28
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Vránová I, Alonso M, Lo R, Sedlák R, Jambor R, Růžička A, De Proft F, Hobza P, Dostál L. From Dibismuthenes to Three- and Two-Coordinated Bismuthinidenes by Fine Ligand Tuning: Evidence for Aromatic BiC3N Rings through a Combined Experimental and Theoretical Study. Chemistry 2015; 21:16917-28. [PMID: 26434943 DOI: 10.1002/chem.201502724] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Iva Vránová
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels (Belgium).
| | - Rabindranath Lo
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Robert Sedlák
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Roman Jambor
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels (Belgium)
| | - Pavel Hobza
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Libor Dostál
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic).
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Affiliation(s)
- Joydeb Goura
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
| | - Vadapalli Chandrasekhar
- Department
of Chemistry, Indian Institute of Technology-Kanpur, Kanpur 208 016, India
- National Institute of Science Education and Research, Institute of Physics Campus, Sachivalaya Marg,
Sainik School, Bhubaneswar, Orissa 751 005, India
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30
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Uhl W, Hentschel A, Kovert D, Kösters J, Layh M. Heterocyclic Digallanates, Encapsulation of Lithium Cations in Organometallic Cages and C–H Bond Activation. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Anne Hentschel
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Dirk Kovert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 30, 48149 Münster, Germany, www.uni‐muenster.de/chemie.ac/uhl/index.html
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31
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Agou T, Nagata K, Tokitoh N. Synthesis of a dialumene-benzene adduct and its reactivity as a synthetic equivalent of a dialumene. Angew Chem Int Ed Engl 2015; 52:10818-21. [PMID: 24926488 DOI: 10.1002/anie.201305228] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Nagase S. Theory and Calculations of Molecules Containing Heavier Main Group Elements and Fullerenes Encaging Transition Metals: Interplay with Experiment. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2014. [DOI: 10.1246/bcsj.20130266] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shigeru Nagase
- Fukui Institute for Fundamental Chemistry, Kyoto University
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33
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Sasamori T, Tokitoh N. A New Family of Multiple-Bond Compounds between Heavier Group 14 Elements. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2013. [DOI: 10.1246/bcsj.20130134] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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34
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Agou T, Nagata K, Tokitoh N. Synthesis of a Dialumene-Benzene Adduct and Its Reactivity as a Synthetic Equivalent of a Dialumene. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305228] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Zhao Y, Lei Y, Dong Q, Wu B, Yang XJ. Reactivity of Dialumane and “Dialumene” Compounds toward Alkenes. Chemistry 2013; 19:12059-66. [DOI: 10.1002/chem.201300735] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 05/21/2013] [Indexed: 11/08/2022]
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36
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Caputo CA, Koivistoinen J, Moilanen J, Boynton JN, Tuononen HM, Power PP. Counterintuitive Mechanisms of the Addition of Hydrogen and Simple Olefins to Heavy Group 13 Alkene Analogues. J Am Chem Soc 2013; 135:1952-60. [DOI: 10.1021/ja3116789] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christine A. Caputo
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue,
Davis, California 95616, United States
| | - Juha Koivistoinen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014 Jyväskylä, Finland
| | - Jani Moilanen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014 Jyväskylä, Finland
| | - Jessica N. Boynton
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue,
Davis, California 95616, United States
| | - Heikki M. Tuononen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014 Jyväskylä, Finland
| | - Philip P. Power
- Department
of Chemistry, The University of California Davis, 1 Shields Avenue,
Davis, California 95616, United States
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37
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Boynton JN, Summerscales OT, Grandjean F, Long GJ, Fettinger JC, Power PP. Structural and Magnetic Studies of a Quasi-Inverse Sandwich Cyclooctatetraene Complex with Two High-Spin Chromium(II) Ions Bound Anti-Facially. Organometallics 2012. [DOI: 10.1021/om300936s] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jessica N. Boynton
- Department
of Chemistry, University of California, Davis, California 95616,
United States
| | - Owen T. Summerscales
- Department
of Chemistry, University of California, Davis, California 95616,
United States
| | | | - Gary J. Long
- Department of Chemistry, Missouri
University of Science and Technology, University of Missouri, Rolla, Missouri 65409-0010, United States
| | - James C. Fettinger
- Department
of Chemistry, University of California, Davis, California 95616,
United States
| | - Philip P. Power
- Department
of Chemistry, University of California, Davis, California 95616,
United States
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38
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Dange D, Li J, Schenk C, Schnöckel H, Jones C. Monomeric Group 13 Metal(I) Amides: Enforcing One-Coordination Through Extreme Ligand Steric Bulk. Inorg Chem 2012; 51:13050-9. [DOI: 10.1021/ic3022613] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deepak Dange
- School of
Chemistry, Monash
University, P.O. Box 23, Melbourne, Victoria 3800, Australia
| | - Jiaye Li
- School of
Chemistry, Monash
University, P.O. Box 23, Melbourne, Victoria 3800, Australia
| | - Christian Schenk
- School of
Chemistry, Monash
University, P.O. Box 23, Melbourne, Victoria 3800, Australia
- Im Neuenheimerfeld 270, Anorganische
Chemie, Universität Heidelberg 69120, Germany
| | - Hansgeorg Schnöckel
- Institute of Inorganic Chemistry,
Karlsruhe Institute of Technology, Engesserstrasse 15, Bldg. 30.45,
76128, Germany
| | - Cameron Jones
- School of
Chemistry, Monash
University, P.O. Box 23, Melbourne, Victoria 3800, Australia
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