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Durfy CS, Zurakowski JA, Jobin G, Drover MW. An Investigation of Allyl-Substituted Bis(Diphosphine) Iron Complexes: Towards Precursors for Cooperative CO 2 Activation. Chemistry 2024; 30:e202302721. [PMID: 37724786 DOI: 10.1002/chem.202302721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/21/2023]
Abstract
In developing homogenous catalysts capable of CO2 activation, interaction with a metal center is often imperative. This work provides primary efforts towards the cooperative activation of CO2 using a Lewis acidic secondary coordination sphere (SCS) and iron via a paired theoretical/experimental approach. Specifically, this study reports efforts towards [Fe(diphosphine)2 (N2 )] as a CO2 -coordinated synthon where diphosphine=1,2-bis(di(3-cyclohexylboranyl)propylphosphino)ethane) (P2 BCy 4 ) or its precursor, 1,2-bis(diallylphosphino)ethane (tape). Initial efforts toward the {Fe(0)-N2 } complex were focused on deprotonation reactions of [Fe(diphosphine)2 (H)(NCCH3 )]+ and reduction of [Fe(tape)2 Cl2 ]. In the latter case, a mixture of intramolecularly π-bonded alkene and associated metallacyclic Fe(II)-H species were produced - heating this mixture provided the hydride as the major product. Notably, the interconversion of this pair counters that of related intermolecular reactions between [Fe(depe)2 ] (depe=1,2-bis(diethylphosphino)ethane) and ethylene, where hydride formation occurs subsequent to π-coordination; this has been probed by theoretical calculations. Finally, reactivity of the metallacyclic {Fe(II)-H} complex with CO2 was probed, resulting in a pair of isomeric ferra(II)lactones.
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Affiliation(s)
- Connor S Durfy
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
- Department of Chemistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Joseph A Zurakowski
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
- Department of Chemistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Gabriel Jobin
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
- Department of Chemistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Marcus W Drover
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
- Department of Chemistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada
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2
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Aman M, Dostál L, Růžička A, Tydlitát J, Beckmann J, Turek J, Jambor R. Sn, P-coordinated Ru cation: a robust catalyst for aerobic oxidations of benzylamine and benzyl alcohol. Chem Commun (Camb) 2021; 57:12992-12995. [PMID: 34796897 DOI: 10.1039/d1cc06173a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stable ionic κ2Sn,P-coordinated Ru complex shows excellent catalytic activity in aerobic oxidations of benzylamine and benzyl alcohol. This complex is stabilized by a stannylene-phosphine peri-substituted naphthalene ligand, which can act as either a reducing agent for a Ru(III) complex or as a κ2Sn,P-chelating ligand for Ru(II) compounds.
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Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Jiří Tydlitát
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany
| | - Jan Turek
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
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3
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Krahfuß MJ, Nitsch J, Bickelhaupt FM, Marder TB, Radius U. N-Heterocyclic Silylenes as Ligands in Transition Metal Carbonyl Chemistry: Nature of Their Bonding and Supposed Innocence. Chemistry 2020; 26:11276-11292. [PMID: 32233000 PMCID: PMC7497151 DOI: 10.1002/chem.202001062] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/28/2020] [Indexed: 11/07/2022]
Abstract
A study on the reactivity of the N-heterocyclic silylene Dipp2 NHSi (1,3-bis(diisopropylphenyl)-1,3-diaza-2-silacyclopent-4-en-2-yliden) with the transition metal complexes [Ni(CO)4 ], [M(CO)6 ] (M=Cr, Mo, W), [Mn(CO)5 (Br)] and [(η5 -C5 H5 )Fe(CO)2 (I)] is reported. We demonstrate that N-heterocyclic silylenes, the higher homologues of the now ubiquitous NHC ligands, show a remarkably different behavior in coordination chemistry compared to NHC ligands. Calculations on the electronic features of these ligands revealed significant differences in the frontier orbital region which lead to some peculiarities of the coordination chemistry of silylenes, as demonstrated by the synthesis of the dinuclear, NHSi-bridged complex [{Ni(CO)2 (μ-Dipp2 NHSi)}2 ] (2), complexes [M(CO)5 (Dipp2 NHSi)] (M=Cr 3, Mo 4, W 5), [Mn(CO)3 (Dipp2 NHSi)2 (Br)] (9) and [(η5 -C5 H5 )Fe(CO)2 (Dipp2 NHSi-I)] (10). DFT calculations on several model systems [Ni(L)], [Ni(CO)3 (L)], and [W(CO)5 (L)] (L=NHC, NHSi) reveal that carbenes are typically the much better donor ligands with a larger intrinsic strength of the metal-ligand bond. The decrease going from the carbene to the silylene ligand is mainly caused by favorable electrostatic contributions for the NHC ligand to the total bond strength, whereas the orbital interactions were often found to be higher for the silylene complexes. Furthermore, we have demonstrated that the contribution of σ- and π-interaction depends significantly on the system under investigation. The σ-interaction is often much weaker for the NHSi ligand compared to NHC but, interestingly, the π-interaction prevails for many NHSi complexes. For the carbonyl complexes, the NHSi ligand is the better σ-donor ligand, and contributions of π-symmetry play only a minor role for the NHC and NHSi co-ligands.
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Affiliation(s)
- Mirjam J. Krahfuß
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Jörn Nitsch
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - F. Matthias Bickelhaupt
- Department of Theoretical ChemistryAmsterdam Center for, Multiscale Modeling (ACMM)Vrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Institute for Molecules and Materials (IMM)Radboud UniversityHeyendaalseweg 1356525 AJNijmegenThe Netherlands
| | - Todd B. Marder
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Udo Radius
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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4
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Yadav D, Singh D, Sarkar D, Sinhababu S, Sharma MK, Nagendran S. Reactivity studies on aminotroponiminatogermylene stabilized ruthenium(II) complexes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Dyckhoff F, Kaiser F, Hölzl S, Kühn FE. Synthesis and Characterization of New N-Heterocyclic Silylazides. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201800427] [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)
- Florian Dyckhoff
- Molecular Catalysis; Catalysis Research Center and Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Felix Kaiser
- Molecular Catalysis; Catalysis Research Center and Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Sebastian Hölzl
- Molecular Catalysis; Catalysis Research Center and Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
| | - Fritz E. Kühn
- Molecular Catalysis; Catalysis Research Center and Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85748 Garching bei München Germany
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6
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Xu B, Shi P, Huang T, Wang X, Andrews L. Double and Triple Si-H-M Bridge Bonds: Matrix Infrared Spectra and Theoretical Calculations for Reaction Products of Silane with Ti, Zr, and Hf Atoms. J Phys Chem A 2017; 121:3898-3908. [PMID: 28471677 DOI: 10.1021/acs.jpca.6b12217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Infrared spectra of matrix isolated dibridged Si(μ-H)2MH2 and tribridged Si(μ-H)3MH molecules (M = Zr and Hf) were observed following the laser-ablated metal atom reactions with SiH4 during condensation in excess argon and neon, but only the latter species was observed with titanium. Assignments of the major vibrational modes, which included terminal MH, MH2 and hydrogen bridge Si-H-M stretching modes, were confirmed by the appropriate SiD4 isotopic shifts and density functional vibrational frequency calculations (B3LYP and BPW91). The Si-H-M hydrogen bridge bond is calculated as weak covalent interaction and compared with the C-H···M agostic interaction in terms of electron localization function (ELF) analysis and noncovalent interaction index (NCI) calculations. Furthermore, the different products of Ti, Zr, and Hf reactions with SiH4 are discussed in detail.
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Affiliation(s)
- Bing Xu
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University , Shanghai, 200092, China
| | - Peipei Shi
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University , Shanghai, 200092, China
| | - Tengfei Huang
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University , Shanghai, 200092, China
| | - Xuefeng Wang
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University , Shanghai, 200092, China
| | - Lester Andrews
- Department of Chemistry, University of Virginia , Charlottesville, Virginia 22904 United States
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7
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Mala D, Jagirdar BR, Patil YP, Nethaji M. Homobimetallic hydride and dihydrogen complexes of ruthenium bearing N-heterocyclic carbene ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.12.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Yadav S, Sangtani E, Dhawan D, Gonnade RG, Ghosh D, Sen SS. Unprecedented solvent induced inter-conversion between monomeric and dimeric silylene–zinc iodide adducts. Dalton Trans 2017; 46:11418-11424. [DOI: 10.1039/c7dt01823a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of silylene [PhC(NtBu)2SiN(SiMe3)2] with ZnI2leads to both monomeric [PhC(NtBu)2Si{N(SiMe3)2} → ZnI2]·THF (1) and dimeric [PhC(NtBu)2Si{N(SiMe3)2} → ZnI2]2(2) adducts which are inter-convertible.
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Affiliation(s)
- Sandeep Yadav
- Inorganic Chemistry and Catalysis Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Ekta Sangtani
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi-110020
- India
- Physical and Material Chemistry Division
- CSIR-National Chemical Laboratory
| | - Diksha Dhawan
- Physical and Material Chemistry Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR)
- New Delhi-110020
- India
- Physical and Material Chemistry Division
- CSIR-National Chemical Laboratory
| | - Debashree Ghosh
- Department of Physical Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Sakya S. Sen
- Inorganic Chemistry and Catalysis Division
- CSIR-National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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9
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Affiliation(s)
- Joyce Y. Corey
- Department of Chemistry and
Biochemistry, University of Missouri—St. Louis, One University
Drive, St. Louis, Missouri 63121, United States
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10
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Álvarez-Rodríguez L, Cabeza JA, Fernández-Colinas JM, García-Álvarez P, Polo D. Amidinatogermylene Metal Complexes as Homogeneous Catalysts in Alcoholic Media. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00426] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucía Álvarez-Rodríguez
- Departamento
de Química
Orgánica e Inorgánica-IUQOEM, Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Javier A. Cabeza
- Departamento
de Química
Orgánica e Inorgánica-IUQOEM, Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - José M. Fernández-Colinas
- Departamento
de Química
Orgánica e Inorgánica-IUQOEM, Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento
de Química
Orgánica e Inorgánica-IUQOEM, Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento
de Química
Orgánica e Inorgánica-IUQOEM, Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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11
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Cabeza JA, García-Álvarez P, Gobetto R, González-Álvarez L, Nervi C, Pérez-Carreño E, Polo D. [MnBrL(CO)4] (L = Amidinatogermylene): Reductive Dimerization, Carbonyl Substitution, and Hydrolysis Reactions. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00168] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier A. Cabeza
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Roberto Gobetto
- Dipartimento
di Chimica, Università di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Laura González-Álvarez
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Carlo Nervi
- Dipartimento
di Chimica, Università di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Enrique Pérez-Carreño
- Departamento
de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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12
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Cabeza JA, García-Álvarez P, Polo D. Intramolecularly Stabilized Heavier Tetrylenes: From Monodentate to Bidentate Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500855] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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14
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Cabeza JA, Fernández-Colinas JM, García-Álvarez P, Pérez-Carreño E, Polo D. Reactivity Studies on a Binuclear Ruthenium(0) Complex Equipped with a Bridging κ2N,Ge-Amidinatogermylene Ligand. Inorg Chem 2015; 54:4850-61. [DOI: 10.1021/acs.inorgchem.5b00412] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier A. Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, and ‡Departamento
de Química Física y Analítica, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - José M. Fernández-Colinas
- Departamento de Química Orgánica e Inorgánica-IUQOEM, and ‡Departamento
de Química Física y Analítica, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica-IUQOEM, and ‡Departamento
de Química Física y Analítica, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Enrique Pérez-Carreño
- Departamento de Química Orgánica e Inorgánica-IUQOEM, and ‡Departamento
de Química Física y Analítica, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento de Química Orgánica e Inorgánica-IUQOEM, and ‡Departamento
de Química Física y Analítica, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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15
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Nakajima Y, Shimada S. Hydrosilylation reaction of olefins: recent advances and perspectives. RSC Adv 2015. [DOI: 10.1039/c4ra17281g] [Citation(s) in RCA: 390] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
This review focuses on the recent development of efficient, selective, and cheaper hydrosilylation catalyst systems appearing in the last decade.
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Affiliation(s)
- Y. Nakajima
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - S. Shimada
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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16
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Zeng T, Wang H, Lu Y, Xie Y, Wang H, Schaefer HF, Ananth N, Hoffmann R. Tuning spin-states of carbynes and silylynes: a long jump with one leg. J Am Chem Soc 2014; 136:13388-98. [PMID: 25152996 DOI: 10.1021/ja5073993] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The challenge motivating this paper is to induce, by chemical substitution, a silylyne, SiR, or a congeneric carbyne, CR, to adopt the high-spin quartet rather than the low-spin doublet as its ground state. The difficulty is seen in the preference for the doublet of the parent SiH (doublet-quartet energy difference ∼39 kcal/mol, favoring the doublet) or CH (∼17 kcal/mol). Strategies for having high-spin ground state parallel those for silylenes and carbenes: greater electropositivity (σ-donation) and π-acceptance of the single substituent favor the high-spin state. The electronegativity trend can be understood from an ions in molecules way of thinking already present in the literature in the works of Boldyrev and Simons, and of Mavridis and Harrison; i.e., the quartet ground state spin of some CR/SiR species is largely determined by the ground state spin of C(-)/Si(-). In this study, we provide a diabatization analysis that solidly confirms the ions in molecules picture and explains the difference in the equilibrium internuclear distances for the two spin states. In general, electronegativity dominates the ordering of spin states. π-Acceptors also help to lower the quartet state energy of the many carbynes (silylynes) examined, whose range of doublet-quartet differences calculated is impressive, 120 (100) kcal/mol. The qualitative understanding gained leads to the prediction of some quartet-ground state carbynes (CMgH, CAlH2, CZnH, CSiH3, CSiF3, etc.) and a smaller number of silylynes (SiMgH, SiMgF, SiBeH, etc.). A beginning is made on the energetics of approach geometries of the fragments in the highly exoergic dimerization of CH to acetylene; it should proceed for the ground state doublet CH through C2h-like trajectories, with no activation energy.
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Affiliation(s)
- Tao Zeng
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
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17
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Blom B, Pohl M, Tan G, Gallego D, Driess M. From Unsymmetrically Substituted Benzamidinato and Guanidinato Dichlorohydridosilanes to Novel Hydrido N-Heterocyclic Silylene Iron Complexes. Organometallics 2014. [DOI: 10.1021/om5005918] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Burgert Blom
- Department
of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Markus Pohl
- Department
of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Gengwen Tan
- Department
of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Daniel Gallego
- Department
of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Matthias Driess
- Department
of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
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18
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Cabeza JA, García-Álvarez P, Pérez-Carreño E, Polo D. Ring Opening and Bidentate Coordination of Amidinate Germylenes and Silylenes on Carbonyl Dicobalt Complexes: The Importance of a Slight Difference in Ligand Volume. Chemistry 2014; 20:8654-63. [DOI: 10.1002/chem.201402295] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Indexed: 11/06/2022]
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19
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Namura K, Suzuki H. Synthesis, Structure, and Reactivity of Mixed-Ligand Dinuclear Ruthenium Polyhydrido Complexes Supported by 1,4,7-Trimethyl-1,4,7-triazacyclononane and Bulky Phosphine Ligands. Organometallics 2014. [DOI: 10.1021/om500018j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kyo Namura
- Department
of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiroharu Suzuki
- Department
of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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20
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Blom B, Enthaler S, Inoue S, Irran E, Driess M. Electron-Rich N-Heterocyclic Silylene (NHSi)–Iron Complexes: Synthesis, Structures, and Catalytic Ability of an Isolable Hydridosilylene–Iron Complex. J Am Chem Soc 2013; 135:6703-13. [DOI: 10.1021/ja402480v] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Burgert Blom
- Department of Chemistry: Metalorganics and Inorganic
Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Stephan Enthaler
- Department of Chemistry: Metalorganics and Inorganic
Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Shigeyoshi Inoue
- Department of Chemistry: Metalorganics and Inorganic
Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Elisabeth Irran
- Department of Chemistry: Metalorganics and Inorganic
Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic
Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, D-10623 Berlin, Germany
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21
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Azhakar R, Ghadwal RS, Roesky HW, Mata RA, Wolf H, Herbst-Irmer R, Stalke D. Reaction of N-heterocyclic silylenes with thioketone: formation of silicon-sulfur three (Si-C-S)- and five (Si-C-C-C-S)-membered ring systems. Chemistry 2013; 19:3715-20. [PMID: 23361862 DOI: 10.1002/chem.201203242] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Indexed: 11/10/2022]
Abstract
Three- and five-membered rings that bear the (Si-C-S) and (Si-C-C-C-S) unit have been synthesized by the reactions of LSiCl (1; L=PhC(NtBu)2 ) and L'Si (2; L'=CH{(CCH2 )(CMe)(2,6-iPr2 C6 H3 N)2 }) with the thioketone 4,4'-bis(dimethylamino)thiobenzophenone. Treatment of 4,4'-bis(dimethylamino)thiobenzophenone with LSiCl at room temperature furnished the [1+2]-cycloaddition product silathiacyclopropane 3. However, reaction of 4,4'-bis(dimethylamino)thiobenzophenone with L'Si at low temperature afforded a [1+4]-cycloaddition to yield the five-membered ring product 4. Compounds 3 and 4 were characterized by NMR spectroscopy, EIMS, and elemental analysis. The molecular structures of 3 and 4 were unambiguously established by single-crystal X-ray structural analysis. The room-temperature reaction of 4,4'-bis(dimethylamino)thiobenzophenone with L'Si resulted in products 4 and 5, in which 4 is the dearomatized product and 5 is formed under the 1,3-migration of a hydrogen atom from the aromatic phenyl ring to the carbon atom of the CS unit. Furthermore, the optimized structures of probable products were investigated by using DFT calculations.
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Affiliation(s)
- Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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22
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Blom B, Stoelzel M, Driess M. New Vistas in N-Heterocyclic Silylene (NHSi) Transition-Metal Coordination Chemistry: Syntheses, Structures and Reactivity towards Activation of Small Molecules. Chemistry 2012; 19:40-62. [DOI: 10.1002/chem.201203072] [Citation(s) in RCA: 245] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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23
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Blom B, Driess M, Gallego D, Inoue S. Facile Access to Silicon-Functionalized Bis-Silylene Titanium(II) Complexes. Chemistry 2012; 18:13355-60. [DOI: 10.1002/chem.201202399] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Indexed: 11/06/2022]
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24
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Azhakar R, Ghadwal RS, Roesky HW, Wolf H, Stalke D. Stabilization of Low Valent Silicon Fluorides in the Coordination Sphere of Transition Metals. J Am Chem Soc 2012; 134:2423-8. [DOI: 10.1021/ja210697p] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Rajendra S. Ghadwal
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Hilke Wolf
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
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25
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Facile Access to Transition-Metal-Carbonyl Complexes with an Amidinate-Stabilized Chlorosilylene Ligand. Chem Asian J 2012; 7:528-33. [DOI: 10.1002/asia.201100722] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Indexed: 11/07/2022]
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26
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Cabeza JA, García-Álvarez P, Polo D. Synthesis of Mixed Tin–Ruthenium and Tin–Germanium–Ruthenium Carbonyl Clusters from [Ru3(CO)12] and Diaminometalenes (M = Sn, Ge). Inorg Chem 2012; 51:2569-76. [DOI: 10.1021/ic202532u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Javier A. Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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27
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Hashimoto H, Tobita H. Heavier Analogs of Carbene Complexes: Syntheses of a New Type of Silylene and Germylene Complexes and Their Reactions with Unsaturated Organic Compounds. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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28
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Jana A, Azhakar R, Sarish SP, Samuel PP, Roesky HW, Schulzke C, Koley D. Reactions of Stable Amidinate Chlorosilylene and [1+4]-Oxidative Addition of N-Heterocyclic Silylene with N-Benzylideneaniline. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100661] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Sakaba H, Oike H, Kawai M, Takami M, Kabuto C, Ray M, Nakao Y, Sato H, Sakaki S. Synthesis, Structure, and Bonding Nature of Ethynediyl-Bridged Bis(silylene) Dinuclear Complexes of Tungsten and Molybdenum. Organometallics 2011. [DOI: 10.1021/om200096z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hiroyuki Sakaba
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Hiroyuki Oike
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masaaki Kawai
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masato Takami
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Chizuko Kabuto
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Mausumi Ray
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshihide Nakao
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hirofumi Sato
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Nishihiraki-cho, Takano, Sakyo-ku, Kyoto 606-8103, Japan
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30
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Ghadwal RS, Azhakar R, Pröpper K, Holstein JJ, Dittrich B, Roesky HW. N-Heterocyclic Carbene Stabilized Dichlorosilylene Transition-Metal Complexes of V(I), Co(I), and Fe(0). Inorg Chem 2011; 50:8502-8. [DOI: 10.1021/ic201096c] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rajendra S. Ghadwal
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Kevin Pröpper
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Julian J. Holstein
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Birger Dittrich
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
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31
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Cabeza JA, García-Álvarez P, Polo D. Reactivity of Diaminogermylenes with Ruthenium Carbonyl: Ru3Ge3 and RuGe2 Derivatives. Inorg Chem 2011; 50:6195-9. [DOI: 10.1021/ic2009682] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Javier A. Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071-Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071-Oviedo, Spain
| | - Diego Polo
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071-Oviedo, Spain
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32
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Azhakar R, Sarish SP, Roesky HW, Hey J, Stalke D. Syntheses of Group 7 Metal Carbonyl Complexes with a Stable N-Heterocyclic Chlorosilylene. Inorg Chem 2011; 50:5039-43. [DOI: 10.1021/ic2003035] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | | | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Jakob Hey
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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33
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Zhang SH, Yeong HX, So CW. Reactivity of a Silylsilylene Bearing a Functionalized Diaminochlorosilyl Substituent. Chemistry 2011; 17:3490-9. [DOI: 10.1002/chem.201002611] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 12/03/2010] [Indexed: 11/12/2022]
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34
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Corey JY. Reactions of hydrosilanes with transition metal complexes and characterization of the products. Chem Rev 2011; 111:863-1071. [PMID: 21250634 DOI: 10.1021/cr900359c] [Citation(s) in RCA: 353] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joyce Y Corey
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, 63121, USA.
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35
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Azhakar R, Tavčar G, Roesky HW, Hey J, Stalke D. Facile Synthesis of a Rare Chlorosilylene-BH3 Adduct. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201001188] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Tavčar G, Sen SS, Azhakar R, Thorn A, Roesky HW. Facile Syntheses of Silylene Nickel Carbonyl Complexes from Lewis Base Stabilized Chlorosilylenes. Inorg Chem 2010; 49:10199-202. [DOI: 10.1021/ic101556s] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gašper Tavčar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Sakya S. Sen
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Ramachandran Azhakar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Andrea Thorn
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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37
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Cade IA, Hill AF, Kämpfe A, Wagler J. Five-Coordinate Hydrido−Ruthenium(II) Complexes Featuring N-Heterocyclic Silylene and Carbene Ligands. Organometallics 2010. [DOI: 10.1021/om100146m] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ian A. Cade
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
| | - Anthony F. Hill
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
| | - Alexander Kämpfe
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra, ACT 0200, Australia
- Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596 Freiberg, Germany
| | - Jörg Wagler
- Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, D-09596 Freiberg, Germany
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38
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Jungton AK, Meltzer A, Präsang C, Braun T, Driess M, Penner A. Addition of [(η5-C5Me5)IrH4] to a zwitterionic silylene: stepwise formation of iridium(v)-silyl and iridium(iii)-silylene complexes. Dalton Trans 2010; 39:5436-8. [DOI: 10.1039/c0dt00236d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Li J, Merkel S, Henn J, Meindl K, Döring A, Roesky HW, Ghadwal RS, Stalke D. Lewis-Base-Stabilized Dichlorosilylene: A Two-Electron σ-Donor Ligand. Inorg Chem 2009; 49:775-7. [DOI: 10.1021/ic9023162] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianfeng Li
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Sebastian Merkel
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Julian Henn
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Kathrin Meindl
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Alexander Döring
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Rajendra S. Ghadwal
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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40
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Burling S, Mas-Marzá E, Valpuesta JEV, Mahon MF, Whittlesey MK. Coordination, Agostic Stabilization, and C−H Bond Activation of N-Alkyl Heterocyclic Carbenes by Coordinatively Unsaturated Ruthenium Hydride Chloride Complexes. Organometallics 2009. [DOI: 10.1021/om9007532] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Suzanne Burling
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Elena Mas-Marzá
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | | | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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41
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Vergnaud J, Grellier M, Bouhadir G, Vendier L, Sabo-Etienne S, Bourissou D. Synthesis and Reactivity of Ruthenium Arene Complexes Incorporating Novel Ph2PCH2CH2BR2 Ligands. Easy Access to the Four-Membered Ruthenacycle [(p-cymene)RuCl(κC,P-CH2CH2PPh2)]. Organometallics 2008. [DOI: 10.1021/om701139a] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jérôme Vergnaud
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Mary Grellier
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Ghenwa Bouhadir
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Sylviane Sabo-Etienne
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
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Ochiai M, Hashimoto H, Tobita H. Synthesis and Structure of a Hydrido(hydrosilylene)ruthenium Complex and Its Reactions with Nitriles. Angew Chem Int Ed Engl 2007; 46:8192-4. [PMID: 17886823 DOI: 10.1002/anie.200703154] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mitsuyoshi Ochiai
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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43
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Ochiai M, Hashimoto H, Tobita H. Synthesis and Structure of a Hydrido(hydrosilylene)ruthenium Complex and Its Reactions with Nitriles. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200703154] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Hashimoto H, Ochiai M, Tobita H. Reactions of a hydrido(hydrosilylene)tungsten complex with oxiranes. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.08.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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McGrath TD, Stone FGA, Sukcharoenphon K. Substitution, cage functionalization, and oxidation of the charge-compensated triruthenium monocarbollide cluster complex [1-SMe2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru2(CO)6}-closo-2,1-RuCB10H8]. Dalton Trans 2005:2500-7. [PMID: 16025169 DOI: 10.1039/b505243b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The compound [1-SMe2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru2(CO)6}-closo-2,1-RuCB10H8] 1a reacts with PMe3 or PCy3(Cy = cyclo-C6H11) to give the structurally different species [1-SMe2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru2(CO)5(PMe3)}-closo-2,1-RuCB10H8] 4 and [1-SMe2-2,2-(CO)2-11-(mu-H)-2,7,11-{Ru2(mu-H)(CO)5(PCy3)}-closo-2,1-RuCB10H8]5, respectively. A symmetrically disubstituted product [1-SMe2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru2(CO)4(PMe3)2}-closo-2,1-RuCB10H8] 6 is obtained using an excess of PMe3. In contrast, the chelating diphosphines 1,1'-(PPh2)2-Fe(eta-C5H4)2 and 1,2-(PPh2)2-closo-1,2-C2B10H10 react with 1a to yield oxidative-insertion species [1-SMe2-2,2-(CO)2-11-(mu-H)-2,7,11-{Ru2(mu-H)(micro-[1',1''-(PPh2)2-Fe(eta-C5H4)2])(CO)4}-closo-2,1-RuCB10H8] 7 and [1-SMe2-2,2-(CO)2-11-(mu-H)-2,7,11-{Ru2(mu-H)(CO)4(1',2'-(PPh2)2-closo-1',2'-C2B10H10)}-closo-2,1-RuCB10H8] 8, respectively. In toluene at reflux temperatures, 1a with Bu(t)SSBu(t) gives [1-SMe2-2,2-(CO)2-7-(mu-SBu(t))-11-(mu-H)-2,7,11-{Ru2(mu-H)(mu-SBu(t))(CO)4}-closo-2,1-RuCB10H8] 9, and with Bu(t)C [triple bond] CH gives [1-SMe2-2,2-(CO)2-7-{mu:eta2-(E)-CH=C(H)Bu(t)}-11-{mu:eta2-(E)-CH=C(H)Bu(t)}-2,7,11-{Ru2(CO)5}-closo-2,1-RuCB10H8] 10. In the latter, two alkyne groups have inserted into cage B-H groups, with one of the resulting B-vinyl moieties involved in a C-H...Ru agostic bond. Oxidation of 1a with I2 or HgCl2 affords the mononuclear ruthenium complex [1-SMe2-2,2,2-(CO)3-closo-2,1-RuCB10H10] 11.
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Affiliation(s)
- Thomas D McGrath
- Department of Chemistry and Biochemistry, Baylor University, Waco, Texas 76798-7348, USA
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Joo H, McKee ML. Computational Study of the “Stable” Bis(amino)silylene Reaction with Halomethanes. A Radical or Concerted Mechanism? J Phys Chem A 2005; 109:3728-38. [PMID: 16839041 DOI: 10.1021/jp044458p] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of bis(amino)silylene with XCH3, X = Cl, Br, I, has been studied computationally using DFT with flexible basis sets. A radical process where a halogen atom is abstracted from halomethane is predicted to be much more favorable than oxidative addition of the halomethane to the divalent silicon center. A chain mechanism is proposed that consists of a chain-initiation step (halogen abstraction) followed by competing chain-propagation steps. In one branch, the methyl-substituted bis(amino)silylene abstracts a halogen from XCH3 to form an observed product (the 1:1 adduct), releasing a methyl radical. In the other branch, the methyl-substituted bis(amino)silylene is intercepted by another bis(amino)silylene, which, in turn, can abstract a halogen from XCH3 to form the other observed product (the 2:1 adduct) and release a methyl radical. In the series, XCH3, X = Cl, Br, and I, we predict an increase of the 1:1 adduct-producing pathway over the 2:1 adduct-producing pathway, which is consistent with experimental observations. The reactivity of bis(amino)silylene indicates a greater similarity to disilene rather than to previously suggested phosphines.
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Affiliation(s)
- Hyun Joo
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, USA
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Tumanskii B, Pine P, Apeloig Y, Hill NJ, West R. Radical Reactions of a Stable N-Heterocyclic Silylene: EPR Study and DFT Calculation. J Am Chem Soc 2004; 126:7786-7. [PMID: 15212520 DOI: 10.1021/ja049114r] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of the stable silylene, 1,3-di-tert-butyl-1,3,2-diazasilol-2-ylidene, with the free radical sources TEMPO, Hg[P(O)(OPri)2]2, (CO)3CpM-MCp(CO)3 (M = W, Mo), (CO)5Re-Re(CO)5, and toluene leads to radical adducts. The EPR spectra of these radicals indicate that the unpaired electron is delocalized over the silicon-containing five-membered ring.
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Affiliation(s)
- Boris Tumanskii
- Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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Drouin SD, Foucault HM, Yap GPA, Fogg DE. Compatibility of the Vinylidene Ligand and Perfluorophenoxide. Organometallics 2004. [DOI: 10.1021/om030646a] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samantha D. Drouin
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N 6N5
| | - Heather M. Foucault
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N 6N5
| | - Glenn P. A. Yap
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N 6N5
| | - Deryn E. Fogg
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, Canada, K1N 6N5
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Baratta W, Mealli C, Herdtweck E, Ienco A, Mason SA, Rigo P. Nonclassical vs Classical Metal···H3C−C Interactions: Accurate Characterization of a 14-Electron Ruthenium(II) System by Neutron Diffraction, Database Analysis, Solution Dynamics, and DFT Studies. J Am Chem Soc 2004; 126:5549-62. [PMID: 15113226 DOI: 10.1021/ja038986a] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A neutron diffraction study of the complex RuCl(2)[PPh(2)(2,6-Me(2)C(6)H(3))](2) (1) defines the precise nature of the delta agostic interactions between the unsaturated metal center and two o-methyl groups of the xylyl substituents. The CH(3) carbon atoms lie in the RuP(2) equatorial plane with Ru...C distances of 2.637(7) and 2.668(6) A, whereas four short Ru.H distances (from 2.113(11) to 2.507(11) A) indicate that each methyl group interacts with two C-H bonds. A survey of the X-ray structures with beta, gamma, delta, and epsilon M...H(3)C-C moieties (no neutron data have been previously reported) shows a linear correlation between the angle M.C-C and the torsion of the methyl group about the C-C bond. Thus, the agostic interactions span the range between the classical (M...eta(2)-HC) and the nonclassical (M...eta(3)-H(2)C) types. A solution study of 1 shows intramolecular rearrangement of each xylyl substituent that equilibrates the environments of its two ortho CH(3) groups. Activation parameters, evaluated from the analysis of (1)H NMR line shape as a function of temperature, are Delta H(++) = 9.6 +/- 0.2 kcal mol(-1) with Delta S(++) = -15.4 +/- 0.7 eu (CDCl(3)). The related 14-electron complexes RuX(2)[PPh(2)(2,6-Me(2)C(6)H(3))](2) (X = I, 2; NCO, 3), prepared from 1 and NaX, show a similar dynamic process in solution, with the iodo derivative displaying the most hindered rotation of the xylyl group. A DFT optimization of the complex RuCl(2)[PH(2)(2,6-Me(2)C(6)H(3))](2) (1a) reproduces well the nonclassical Ru...eta(3)-H(2)C agostic mode, whereas the classical Ru...eta(2)-HC one corresponds to a transition state 1b, destabilized by 3.4 kcal mol(-1). A similar barrier (ca. 3.8 kcal mol(-1)) is calculated for the xylyl rotation in the further simplified model RuCl(2)[PH(2)(2,6-Me(2)C(6)H(3))][PH(2)CH[double bond]CHCH(3)] (1c), the absence of bulky phenyl substituents being largely responsible for the difference with respect to the experimental value. Finally, the MO analysis addresses the intrinsic stability of the 14-electron complex RuCl(2)(PH(3))(2) and, in agostic complexes, accounts for the different interactions between the methyl group and the metal atom in relation to the length of their interconnecting chain.
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Affiliation(s)
- Walter Baratta
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy.
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