1
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Culver DB, Boncella JM. Double Intramolecular 1,2 C-H Addition of o-Methyl Groups To Form Ruthenium Pincer Double Tuck-In Complexes. Inorg Chem 2023; 62:19383-19388. [PMID: 37971401 DOI: 10.1021/acs.inorgchem.3c02499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Ruthenium pincer complexes have a rich history of coordination and reaction chemistries. In this work, we report our discoveries of previously unreported Ru pincer coordination geometries. We found that mono tuck-in κ4-ArPNHPRuLCl complexes react with NaN(SiMe3)2 producing double tuck-in mer-κ5-ArPNHPRuL complexes. Interestingly, when κ4-MesPNHPRuCl is dehydrohalogenated, the resulting double tuck-in complex binds N2, forming the nitrogen complex κ5-MesPNHPRuN2. The mer-κ5-ArPNHPRuL complexes thermally isomerize to the fac-κ5-ArPNHPRuL isomers, which is an uncommon reaction for pincer complexes. The mer-κ5-ArPNHPRuL complexes react with CO and CO2 to form amide κ4-ArPNHPRu(CO)L or carbamate κ5-ArPN(CO2)PRuL complexes, respectively, supporting the hypothesis that the κ4-ArPNPRuL amide intermediates are accessible and reactive.
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Affiliation(s)
- Damien B Culver
- Washington State University, Pullman, Washington 99164, United States
| | - James M Boncella
- Washington State University, Pullman, Washington 99164, United States
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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2
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Bhardwaj A, Mondal B. μ 2 -η 1 :η 1 -N 2 Bridged Bimetallic Dinitrogen Complexes: Geometry of the First Excited State in Connection to N 2 π-Photoactivation. Chemistry 2023; 29:e202301984. [PMID: 37578813 DOI: 10.1002/chem.202301984] [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: 06/22/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
Bimetallic end-on μ2 -η1 :η1 -N2 bridging dinitrogen complexes have served as the platform for photochemical N2 activation, mainly for the N-N cleavage. However, the alternate N-N π-photoactivation route has remained largely unexplored. This study strengthens the notion of weakening the N-N bond through the population of π* orbital upon electronic excitation from the ground to the first excited state using four prototypical complexes based on Fe (1), Mo (2), and Ru (3,4). The complexes 1-4 possess characteristic N-N π* based LUMO (π*-π*-π*) centered on their M-N-N-M core, which was earlier postulated to play a central role in the N2 photoactivation. Vertical electronic excitation of the highest oscillator strength involves transitions to the N-N π*-based acceptor orbital (π*-π*-π*) in complexes 1-4. This induces geometry relaxation of the first excited metal-to-nitrogen (π*) charge transfer (1 MNCT) state leading to a "zigzag" M-N-N-M core in the equilibrium structure. Obtaining the equilibrium geometry in the first excited state with the full-sized complexes widens the scope of N-N π-photoactivation with μ2 -η1 :η1 -N2 bridging dinitrogen complexes. Promisingly, the elongated N-N bond and bent ∠MNN angle in the photoexcited S1 state of 1-4 resemble their radical- and di-anion forms, which lead toward thermodynamically feasible N-N protonation in the S1 excited state.
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Affiliation(s)
- Akhil Bhardwaj
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal, Pradesh, 175075, India
| | - Bhaskar Mondal
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal, Pradesh, 175075, India
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3
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Netam KD, Pal AK, Nethaji M, Jagirdar BR. Agostic interaction versus small molecule binding in [RuH(CO)(PPhNiPrPPh)]BAr4F complex. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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4
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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5
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Abstract
Activation of dinitrogen plays an important role in daily anthropogenic life, and the processes by which this fixation occurs have been a longstanding and significant research focus within the community. One of the major fields of dinitrogen activation research is the use of multimetallic compounds to reduce and/or activate N2 into a more useful nitrogen-atom source, such as ammonia. Here we report a comprehensive review of multimetallic-dinitrogen complexes and their utility toward N2 activation, beginning with the d-block metals from Group 4 to Group 11, then extending to Group 13 (which is exclusively populated by B complexes), and finally the rare-earth and actinide species. The review considers all polynuclear metal aggregates containing two or more metal centers in which dinitrogen is coordinated or activated (i.e., partial or complete cleavage of the N2 triple bond in the observed product). Our survey includes complexes in which mononuclear N2 complexes are used as building blocks to generate homo- or heteromultimetallic dinitrogen species, which allow one to evaluate the potential of heterometallic species for dinitrogen activation. We highlight some of the common trends throughout the periodic table, such as the differences between coordination modes as it relates to N2 activation and potential functionalization and the effect of polarizing the bridging N2 ligand by employing different metal ions of differing Lewis acidities. By providing this comprehensive treatment of polynuclear metal dinitrogen species, this Review aims to outline the past and provide potential future directions for continued research in this area.
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Affiliation(s)
- Devender Singh
- Center for Catalysis, and Florida Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
| | - William R. Buratto
- Center for Catalysis, and Florida Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
| | - Juan F. Torres
- Center for Catalysis, and Florida Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
| | - Leslie J. Murray
- Center for Catalysis, and Florida Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
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6
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Li J, Yin J, Wang GX, Yin ZB, Zhang WX, Xi Z. Synthesis and reactivity of asymmetric Cr(i) dinitrogen complexes supported by cyclopentadienyl–phosphine ligands. Chem Commun (Camb) 2019; 55:9641-9644. [DOI: 10.1039/c9cc02960e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Trinuclear and dinuclear Cr(i) dinitrogen complexes and mixed-valence dinuclear Cr–N2 complex, with novel asymmetric N2 coordination modes, are realized.
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Affiliation(s)
- Jiapeng Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Jianhao Yin
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Gao-Xiang Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Zhu-Bao Yin
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
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7
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Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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8
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Lau S, White AJP, Casely IJ, Crimmin MR. Tunable Binding of Dinitrogen to a Series of Heterobimetallic Hydride Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00340] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Samantha Lau
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, U.K
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, U.K
| | - Ian J. Casely
- Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading, RG4 9NH, U.K
| | - Mark R. Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, U.K
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9
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Structural Determination of Ruthenium Complexes Containing Bi-Dentate Pyrrole-Ketone Ligands. MOLECULES (BASEL, SWITZERLAND) 2018; 23:molecules23010159. [PMID: 29342833 PMCID: PMC6016999 DOI: 10.3390/molecules23010159] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 12/28/2022]
Abstract
A series of ruthenium compounds containing a pyrrole-ketone bidentate ligand, 2-(2′-methoxybenzoyl)pyrrole (1), have been synthesized and characterized. Reacting 1 with [(η6-cymene)RuCl2]2 and RuHCl(CO)(PPh3)3 generated Ru(η6-cymene)[C4H3N-2-(CO-C6H4-2-OMe)]Cl (2) and {RuCl(CO)(PPh3)2[C4H3N-2-(COC6H4-2-OMe)]} (3), respectively, in moderate yields. Successively reacting 2 with sodium cyanate and sodium azide gave {Ru(η6-cymene)[C4H3N-2-(CO-C6H4-2-OMe)]X} (4, X=OCN; 5, X=N3) with the elimination of sodium chloride. Compounds 2–5 were all characterized by 1H and 13C-NMR spectra and their structures were also determined by X-ray single crystallography.
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10
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Lau S, Ward B, Zhou X, White AJP, Casely IJ, Macgregor SA, Crimmin MR. Mild sp 2Carbon-Oxygen Bond Activation by an Isolable Ruthenium(II) Bis(dinitrogen) Complex: Experiment and Theory. Organometallics 2017; 36:3654-3663. [PMID: 29151664 PMCID: PMC5684690 DOI: 10.1021/acs.organomet.7b00632] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Indexed: 11/28/2022]
Abstract
![]()
The isolable ruthenium(II)
bis(dinitrogen) complex [Ru(H)2(N2)2(PCy3)2] (1) reacts with aryl
ethers (Ar–OR, R = Me and Ar) containing
a ketone directing group to effect sp2C–O bond activation
at temperatures below 40 °C. DFT studies support a low-energy
Ru(II)/Ru(IV) pathway for C–O bond activation: oxidative addition
of the C–O bond to Ru(II) occurs in an asynchronous manner
with Ru–C bond formation preceding C–O bond breaking.
Alternative pathways based on a Ru(0)/Ru(II) couple are competitive
but less accessible due to the high energy of the Ru(0) precursors.
Both experimentally and by DFT calculations, sp2C–H
bond activation is shown to be more facile than sp2C–O
bond activation. The kinetic preference for C–H bond activation
over C–O activation is attributed to unfavorable approach of
the C–O bond toward the metal in the selectivity determining
step of the reaction pathway.
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Affiliation(s)
- Samantha Lau
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Bryan Ward
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Xueer Zhou
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Andrew J P White
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Ian J Casely
- Johnson Matthey Technology Centre, Blounts Court, Sonning Common, Reading RG4 9NH, United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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11
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Eleazer B, Smith MD, Popov AA, Peryshkov DV. (BB)-Carboryne Complex of Ruthenium: Synthesis by Double B-H Activation at a Single Metal Center. J Am Chem Soc 2016; 138:10531-8. [PMID: 27526855 PMCID: PMC4999960 DOI: 10.1021/jacs.6b05172] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Indexed: 12/22/2022]
Abstract
The first example of a transition metal (BB)-carboryne complex containing two boron atoms of the icosahedral cage connected to a single exohedral metal center (POBBOP)Ru(CO)2 (POBBOP = 1,7-OP(i-Pr)2-2,6-dehydro-m-carborane) was synthesized by double B-H activation within the strained m-carboranyl pincer framework. Theoretical calculations revealed that the unique three-membered (BB)>Ru metalacycle is formed by two bent B-Ru σ-bonds with the concomitant increase of the bond order between the two metalated boron atoms. The reactivity of the highly strained electron-rich (BB)-carboryne fragment with small molecules was probed by reactions with electrophiles. The carboryne-carboranyl transformations reported herein represent a new mode of cooperative metal-ligand reactivity of boron-based complexes.
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Affiliation(s)
- Bennett
J. Eleazer
- Department
of Chemistry and Biochemistry, University
of South Carolina, 631
Sumter Street, Columbia, South Carolina 29208, United States
| | - Mark D. Smith
- Department
of Chemistry and Biochemistry, University
of South Carolina, 631
Sumter Street, Columbia, South Carolina 29208, United States
| | - Alexey A. Popov
- Leibniz
Institute for Solid State and Materials Research, Helmholtzstrasse 20, 01069 Dresden, Germany
| | - Dmitry V. Peryshkov
- Department
of Chemistry and Biochemistry, University
of South Carolina, 631
Sumter Street, Columbia, South Carolina 29208, United States
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12
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Yoshimoto K, Yatabe T, Matsumoto T, Robertson A, Nakai H, Tanaka H, Kamachi T, Shiota Y, Yoshizawa K, Asazawa K, Tanaka H, Ogo S. Synthesis and Structure of a Water-soluble µ-η1:η1-N2 Dinuclear RuII Complex with a Polyamine Ligand. CHEM LETT 2016. [DOI: 10.1246/cl.151004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koji Yoshimoto
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- R & D Division, Daihatsu Motor Co., Ltd
| | - Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Andrew Robertson
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hiromasa Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Takashi Kamachi
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Kazunari Yoshizawa
- Center for Small Molecule Energy, Kyushu University
- Institute for Materials Chemistry and Engineering, Kyushu University
| | | | - Hirohisa Tanaka
- Center for Small Molecule Energy, Kyushu University
- R & D Division, Daihatsu Motor Co., Ltd
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
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13
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Peigné B, Aullón G. Structural analysis of the coordination of dinitrogen to transition metal complexes. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2015; 71:369-386. [PMID: 26027013 DOI: 10.1107/s2052520615006083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 03/25/2015] [Indexed: 06/04/2023]
Abstract
Transition-metal complexes show a wide variety of coordination modes for the nitrogen molecule. A structural database study has been undertaken for dinitrogen complexes, and geometrical parameters around the L(n)M-N2 unit are retrieved from the Cambridge Structural Database. These data were classified in families of compounds, according to metal properties, to determine the degree of lengthening for the dinitrogen bonding. The importance of the nature of the metal center, such as coordination number and electronic configuration, is reported. Our study reveals poor activation by coordination of dinitrogen in mononuclear complexes, always having end-on coordination. However, partial weakening of nitrogen-nitrogen bonding is found for end-on binuclear complexes, whereas side-on complexes can be completely activated.
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Affiliation(s)
- Benjamin Peigné
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Gabriel Aullón
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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14
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Gunanathan C, Milstein D. Bond activation and catalysis by ruthenium pincer complexes. Chem Rev 2014; 114:12024-87. [PMID: 25398045 DOI: 10.1021/cr5002782] [Citation(s) in RCA: 710] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 751005, India
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15
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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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16
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Koehne I, Schmeier TJ, Bielinski EA, Pan CJ, Lagaditis PO, Bernskoetter WH, Takase MK, Würtele C, Hazari N, Schneider S. Synthesis and Structure of Six-Coordinate Iron Borohydride Complexes Supported by PNP Ligands. Inorg Chem 2014; 53:2133-43. [DOI: 10.1021/ic402762v] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ingo Koehne
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Timothy J. Schmeier
- Department
of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Elizabeth A. Bielinski
- Department
of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Cassie J. Pan
- Department
of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Paraskevi O. Lagaditis
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Wesley H. Bernskoetter
- Department
of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Michael K. Takase
- Department
of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Christian Würtele
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
| | - Nilay Hazari
- Department
of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Sven Schneider
- Institut
für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse
4, 37077 Göttingen, Germany
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17
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Abellán-López A, Chicote MT, Bautista D, Vicente J. From Chelate C,N-Cyclopalladated Oximes to C,N,N′-, C,N,S-, or C,N,C′-Pincer Palladium(II) Complexes by Formation of Oxime Ether Ligands. Organometallics 2012. [DOI: 10.1021/om3007213] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Antonio Abellán-López
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - María-Teresa Chicote
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - Delia Bautista
- SAI, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
| | - José Vicente
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Universidad de Murcia, Apartado 4021, 30071 Murcia, Spain
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18
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Yoshinari A, Tazawa A, Kuwata S, Ikariya T. Synthesis, Structures, and Reactivities of Pincer-Type Ruthenium Complexes Bearing Two Proton-Responsive Pyrazole Arms. Chem Asian J 2012; 7:1417-25. [DOI: 10.1002/asia.201200014] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Indexed: 01/03/2023]
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19
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Gruver BC, Adams JJ, Warner SJ, Arulsamy N, Roddick DM. Acceptor Pincer Chemistry of Ruthenium: Catalytic Alkane Dehydrogenation by (CF3PCP)Ru(cod)(H). Organometallics 2011. [DOI: 10.1021/om200354y] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian C. Gruver
- Department of Chemistry, The University of Wyoming, Department 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, United States
| | - Jeramie J. Adams
- Department of Chemistry, The University of Wyoming, Department 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, United States
| | - Seth J. Warner
- Department of Chemistry, The University of Wyoming, Department 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, United States
| | - Navamoney Arulsamy
- Department of Chemistry, The University of Wyoming, Department 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, United States
| | - Dean M. Roddick
- Department of Chemistry, The University of Wyoming, Department 3838, 1000 E. University Avenue, Laramie, Wyoming 82071, United States
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20
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Fang H, Choe YK, Li Y, Shimada S. Synthesis, Structure, and Reactivity of Hydridoiridium Complexes Bearing a Pincer-Type PSiP Ligand. Chem Asian J 2011; 6:2512-21. [DOI: 10.1002/asia.201100085] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2011] [Indexed: 11/12/2022]
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21
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Webb JR, Bolaño T, Gunnoe TB. Catalytic oxy-functionalization of methane and other hydrocarbons: fundamental advancements and new strategies. CHEMSUSCHEM 2011; 4:37-49. [PMID: 21226209 DOI: 10.1002/cssc.201000319] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2010] [Indexed: 05/30/2023]
Affiliation(s)
- Joanna R Webb
- Department of Chemistry, University of Virginia, Charlottesville, 22904, USA
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22
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Gallagher M, Wieder NL, Dioumaev VK, Carroll PJ, Berry DH. Low-Valent Ruthenium Complexes of the Non-innocent 2,6-Bis(imino)pyridine Ligand. Organometallics 2010. [DOI: 10.1021/om9009075] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michelle Gallagher
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Noah L. Wieder
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Vladimir K. Dioumaev
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Patrick J. Carroll
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Donald H. Berry
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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23
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Ballmann J, Munhá RF, Fryzuk MD. The hydride route to the preparation of dinitrogen complexes. Chem Commun (Camb) 2010; 46:1013-25. [DOI: 10.1039/b922853e] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Kizaki T, Matsumoto T, Ogo S. Dissolved N2sensing by pH-dependent Ru complexes. Dalton Trans 2010; 39:1339-44. [DOI: 10.1039/b918940h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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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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26
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27
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Shen H, Xie Z. Constrained-geometry ruthenium carboranyl complexes and their unique chemical properties. Chem Commun (Camb) 2009:2431-45. [DOI: 10.1039/b901549c] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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28
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MacInnis MC, MacLean DF, Lundgren RJ, McDonald R, Turculet L. Synthesis and Reactivity of Platinum Group Metal Complexes Featuring the New Pincer-like Bis(phosphino)silyl Ligand [κ3-(2-Ph2PC6H4)2SiMe]− ([PSiP]): Application in the Ruthenium-Mediated Transfer Hydrogenation of Ketones. Organometallics 2007. [DOI: 10.1021/om7009528] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Morgan C. MacInnis
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3, and X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Darren F. MacLean
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3, and X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Rylan J. Lundgren
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3, and X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Robert McDonald
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3, and X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Laura Turculet
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3, and X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
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29
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Hölscher M, Prechtl MHG, Leitner W. Can [M(H)2(H2)(PXP)] Pincer Complexes (M=Fe, Ru, Os; X=N, O, S) Serve as Catalyst Lead Structures for NH3 Synthesis from N2 and H2? Chemistry 2007; 13:6636-43. [PMID: 17516609 DOI: 10.1002/chem.200700289] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The potential of pincer complexes [M(H)(2)(H(2))(PXP)] (M=Fe, Ru, Os; X=N, O, S) to coordinate, activate, and thus catalyze the reaction of N(2) with classical or nonclassical hydrogen centers present at the metal center, with the aim of forming NH(3) with H(2) as the only other reagent, was explored by means of DF (density functional) calculations. Screening of various complexes for their ability to perform initial hydrogen transfer to coordinated N(2) showed ruthenium pincer complexes to be more promising than the corresponding iron and osmium analogues. The ligand backbone influences the reaction dramatically: the presence of pyridine and thioether groups as backbones in the ligand result in inactive catalysts, whereas ether groups such as gamma-pyran and furan enable the reaction and result in unprecedented low activation barriers (23.7 and 22.1 kcal mol(-1), respectively), low enough to be interesting for practical application. Catalytic cycles were calculated for [Ru(H)(2)(H(2))(POP)] catalysts (POP=2,5-bis(dimethylphosphanylmethyl)furan and 2,6-bis(dimethylphosphanylmethyl)-gamma-pyran). The height of activation barriers for the furan system is somewhat more advantageous. Formation of inactive metal nitrides has not been observed. SCRF calculations were used to introduce solvent (toluene) effects. The Gibbs free energies of activation of the numerous single reaction steps do not change significantly when solvent is included. The reaction steps associated with the formation of the active catalyst from precursors [M(H)(2)(H(2))(PXP)] were also calculated. The otherwise inactive pyridine ligand system allows for the generation of the active catalyst species, whereas the ether ligand systems show activation barriers that could prohibit practical application. Consequently the generation of the active catalyst species needs to be addressed in further studies.
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Affiliation(s)
- Markus Hölscher
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen, Worringer Weg 1, 52074 Aachen, Germany
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30
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Prechtl MHG, Ben-David Y, Giunta D, Busch S, Taniguchi Y, Wisniewski W, Görls H, Mynott RJ, Theyssen N, Milstein D, Leitner W. Synthesis and Characterisation of Nonclassical Ruthenium Hydride Complexes Containing Chelating Bidentate and Tridentate Phosphine Ligands. Chemistry 2007; 13:1539-46. [PMID: 17117397 DOI: 10.1002/chem.200600897] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The synthesis and characterisation of nonclassical ruthenium hydride complexes containing bidentate PP and tridentate PCP and PNP pincer-type ligands are described. The mononuclear and dinuclear ruthenium complexes presented have been synthesised in moderate to high yields by the direct hydrogenation route (one-pot synthesis) or in a two-step procedure. In both cases [Ru(cod)(metallyl)(2)] served as a readily available precursor. The influences of the coordination geometry and the ligand framework on the structure, binding, and chemical properties of the M--H(2) fragments were studied by X-ray crystal structure analysis, spectroscopic methods, and reactivity towards N(2), D(2), and deuterated solvents.
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Affiliation(s)
- Martin H G Prechtl
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringer Weg 1, 52074 Aachen, Germany
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31
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Gagliardo M, Havenith RW, van Klink G, van Koten G. (P-Bis(pentafluorophenyl) substituted) PCP-pincer Ru(II) complexes: A theoretical study of the molecular structure and electronic properties. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2006.01.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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32
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Sun Y, Chan HS, Xie Z. Reaction Scope and Mechanism of Sterically Induced Ruthenium-Mediated Intramolecular Coupling of o-Carboranyl with Cyclopentadienyl. Synthesis and Structure of Ruthenium Complexes Incorporating Doubly Linked Cyclopentadienyl−Carboranyl Ligands. Organometallics 2006. [DOI: 10.1021/om0604122] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Sun
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Hoi-Shan Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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33
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Frech CM, Ben-David Y, Weiner L, Milstein D. Metal-controlled reactivity of a pincer-type, sigma-coordinated naphthyl radical anion. J Am Chem Soc 2006; 128:7128-9. [PMID: 16734443 DOI: 10.1021/ja0615066] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reduction of the new, naphthalene-based pincer complex [(C10H5(CH2PiPr2)2)Rh(eta1-N2)] with potassium metal gave the corresponding sigma-coordinated naphthyl radical anion complex, with a ring-centered radical and no change in the formal metal oxidation state. This paramagnetic complex can be reoxidized to the diamagnetic one with [Cp2Fe][BF4], the structural integrity being retained. Unexpectedly, treatment of a THF solution of the reduced complex with water leads to the immediate evolution of dihydrogen, with reoxidation to the starting complex. This is in striking contrast with the well-known reactivity of the naphthide radical anion, which undergoes ring protonation by water to form 1,4-dihydronaphthalene and naphthalene in a 1:1 ratio.
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Affiliation(s)
- Christian M Frech
- Department of Organic Chemistry and Unit of Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
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34
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Salem H, Ben-David Y, Shimon LJW, Milstein D. Exclusive C−C Activation and an Apparent α-H Elimination with a Rhodium Phosphinite Pincer Complex. Organometallics 2006. [DOI: 10.1021/om060005q] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiyam Salem
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Linda J. W. Shimon
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - David Milstein
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
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35
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36
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Gagliardo M, Chase PA, Lutz M, Spek AL, Hartl F, Havenith RWA, van Klink GPM, van Koten G. A Ruthenium(II) Complex Stabilized by a Highly Fluorinated PCP Pincer Ligand. Organometallics 2005. [DOI: 10.1021/om050422n] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcella Gagliardo
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Preston A. Chase
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Martin Lutz
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Anthony L. Spek
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Frantisek Hartl
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Remco W. A. Havenith
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Gerard P. M. van Klink
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Gerard van Koten
- Debye Institute, Organic Chemistry and Catalysis, Padualaan 8, 3584 CH Utrecht, The Netherlands, Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Padualaan 8, 3584 CH Utrecht, The Netherlands, van't Hoff Institute for Molecular Sciences, Molecular Photonic Materials Group, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Debye Institute, Theoretical Chemistry Group, Padualaan 8, 3584 CH Utrecht, The Netherlands
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37
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Major Q, Lough AJ, Gusev DG. Substituents Effects in POP Pincer Complexes of Ruthenium. Organometallics 2005. [DOI: 10.1021/om050053v] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Quinn Major
- Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5, and Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Alan J. Lough
- Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5, and Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
| | - Dmitry G. Gusev
- Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5, and Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3H6
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38
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Quebatte L, Haas M, Solari E, Scopelliti R, Nguyen QT, Severin K. Atom‐Transfer Radical Reactions under Mild Conditions with [{RuCl
2
(1,3,5‐C
6
H
3
i
Pr
3
)}
2
] and PCy
3
as the Catalyst Precursors. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Laurent Quebatte
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
| | - Michel Haas
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
| | - Quoc T. Nguyen
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
- Institute of Materials, EPFL, 1015 Lausanne, Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21‐693‐9305
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39
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Quebatte L, Haas M, Solari E, Scopelliti R, Nguyen QT, Severin K. Atom‐Transfer Radical Reactions under Mild Conditions with [{RuCl
2
(1,3,5‐C
6
H
3
i
Pr
3
)}
2
] and PCy
3
as the Catalyst Precursors. Angew Chem Int Ed Engl 2005; 44:1084-1088. [PMID: 15662670 DOI: 10.1002/anie.200462037] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Laurent Quebatte
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
| | - Michel Haas
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
| | - Quoc T Nguyen
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
- Institute of Materials, EPFL, 1015 Lausanne, Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland, Fax: (+41) 21-693-9305
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40
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Çelenligil-Çetin R, Watson LA, Guo C, Foxman BM, Ozerov OV. Decarbonylation of Acetone and Carbonate at a Pincer-Ligated Ru Center. Organometallics 2004. [DOI: 10.1021/om049061m] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Remle Çelenligil-Çetin
- Departments of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454, and Earlham College, 801 National West Road, Richmond, Indiana 47374
| | - Lori A. Watson
- Departments of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454, and Earlham College, 801 National West Road, Richmond, Indiana 47374
| | - Chengyun Guo
- Departments of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454, and Earlham College, 801 National West Road, Richmond, Indiana 47374
| | - Bruce M. Foxman
- Departments of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454, and Earlham College, 801 National West Road, Richmond, Indiana 47374
| | - Oleg V. Ozerov
- Departments of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454, and Earlham College, 801 National West Road, Richmond, Indiana 47374
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41
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Amoroso D, Jabri A, Yap GPA, Gusev DG, dos Santos EN, Fogg DE. The First Ru(η3-PCP) Complexes of the Electron-Rich Pincer Ligand 1,3-Bis((dicyclohexylphosphino)methyl)benzene: Structure and Mechanism in Transfer Hydrogenation Catalysis. Organometallics 2004. [DOI: 10.1021/om040025x] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dino Amoroso
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Amir Jabri
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Glenn P. A. Yap
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Dmitry G. Gusev
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Eduardo N. dos Santos
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Deryn E. Fogg
- Center for Catalysis Research and Innovation, Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
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42
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Zhang J, Gandelman M, Shimon LJW, Rozenberg H, Milstein D. Electron-Rich, Bulky Ruthenium PNP-Type Complexes. Acceptorless Catalytic Alcohol Dehydrogenation. Organometallics 2004. [DOI: 10.1021/om049716j] [Citation(s) in RCA: 267] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Zhang
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Mark Gandelman
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Linda J. W. Shimon
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Haim Rozenberg
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
| | - David Milstein
- Department of Organic Chemistry and Unit of Chemical Research Support, The Weizmann Institute of Science, Rehovot, 76100, Israel
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43
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MacKay BA, Fryzuk MD. Dinitrogen coordination chemistry: on the biomimetic borderlands. Chem Rev 2004; 104:385-401. [PMID: 14871129 DOI: 10.1021/cr020610c] [Citation(s) in RCA: 525] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bruce A MacKay
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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44
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van der Boom ME, Iron MA, Atasoylu O, Shimon LJ, Rozenberg H, Ben-David Y, Konstantinovski L, Martin JM, Milstein D. sp3 C–H and sp2 C–H agostic ruthenium complexes: a combined experimental and theoretical study. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2003.11.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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45
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Cabon N, Petillon FY, Schollhammer P, Talarmin J, Muir KW. Reaction of BH4−with {Mo2Cp2(μ-SMe)n} species to give tetrahydroborato, hydrido or dimetallaborane compounds: control of product by ancillary ligands. Dalton Trans 2004:2708-19. [PMID: 15514756 DOI: 10.1039/b407564a] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of mono- or dichloro-dimolybdenum(III) complexes [Mo2Cp2(mu-SMe)2(mu-Cl)(mu-Y)] (Cp=eta5-C5H5; 1, Y=SMe; 2, Y=PPh2; 3, Y=Cl) with NaBH4 at room temperature gave in high yields tetrahydroborato (8), hydrido (9) or metallaborane (12) complexes depending on the ancillary ligands. The correct formulation of derivatives and has been unambigously determined by X-ray diffraction methods. That of the hydrido compound 9 has been established in solution by NMR analysis and confirmed by an X-ray study of the mu-azavinylidene derivative [Mo2Cp2(mu-SMe)2(mu-PPh2)(mu-N=CHMe)] (10) obtained from the insertion of acetonitrile into the Mo-H bond of 9. Reaction of NaBH4 with nitrile derivatives, [Mo2Cp2(mu-SMe)4-n(CH3CN)2n]n+(5, n=1; 6 n=2), afforded the tetrahydroborato compound 8, together with a mu-azavinylidene species [Mo2Cp2(mu-SMe)3(mu-N=CHMe)](14), when n=1, and the metallaborane complex 12, together with a mixed borohydrato-azavinylidene derivative [Mo2Cp2(mu-SMe)2(mu-BH4)(mu-N=CHMe)] (13), when n=2. The molecular structures of these complexes have been confirmed by X-ray analysis. Preparations of some of the starting complexes (3 and 4) are also described, as are the molecular structures of the precursors [Mo2Cp2(mu-SMe)2(mu-X)(mu-Y)] (1, X/Y=Cl/SMe; 2, X/Y=Cl/PPh2; 4, X/Y=SMe/PPh2).
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Affiliation(s)
- Nolwenn Cabon
- UMR CNRS 6521, Chimie, Electrochimie Moléculares et Chimie Analytique, UFR Sciences et Techniques, Université de Bretagne Occidentale, France
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Wen TB, Zhou ZY, Jia G. Coupling Reaction of Phenylacetylene with OsHn(PPh3)(2,6-(PPh2CH2)2C6H3) (n = 1, 3). Organometallics 2003. [DOI: 10.1021/om034141w] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ting Bin Wen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Zhong Yuan Zhou
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong
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Cohen R, Rybtchinski B, Gandelman M, Rozenberg H, Martin JML, Milstein D. Metallacarbenes from diazoalkanes: an experimental and computational study of the reaction mechanism. J Am Chem Soc 2003; 125:6532-46. [PMID: 12785793 DOI: 10.1021/ja028923c] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PCP ligand (1,3-bis-[(diisopropyl-phosphanyl)-methyl]-benzene), and PCN ligand ([3-[(di-tert-butyl-phosphanyl)-methyl]-benzyl]-diethyl-amine) based rhodium dinitrogen complexes (1 and 2, respectively) react with phenyl diazomethane at room temperature to give PCP and PCN-Rh carbene complexes (3 and 5, respectively). At low temperature (-70 degrees C), PCP and PCN phenyl diazomethane complexes (4 and 6, respectively) are formed upon addition of phenyl diazomethane to 1 and 2. In these complexes, the diazo moiety is eta(1) coordinated through the terminal nitrogen atom. Decomposition of complexes 4 and 6 at low temperatures leads only to a relatively small amount of the corresponding carbene complexes, the major products of decomposition being the dinitrogen complexes 1 and 2 and stilbene. This and competition experiments (decomposition of 6 in the presence of 1) suggests that phenyl diazomethane can dissociate under the reaction conditions and attack the metal center through the diazo carbon producing a eta(1)-C bound diazo complex. Computational studies based on a two-layer ONIOM model, using the mPW1K exchange-correlation functional and a variety of basis sets for PCP based systems, provide mechanistic insight. In the case of less bulky PCP ligand bearing H-substituents on the phosphines, a variety of mechanisms are possible, including both dissociative and nondissociative pathways. On the other hand, in the case of i-Pr substituents, the eta(1)-C bound diazo complex appears to be a critical intermediate for carbene complex formation, in good agreement with the experimental results. Our results and the analysis of reported data suggest that the outcome of the reaction between a diazoalkane and a late transition metal complex can be anticipated considering steric requirements relevant to eta(1)-C diazo complex formation.
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Affiliation(s)
- Revital Cohen
- Contribution from the Department of Organic Chemistry, The Weizmann Institute of Science, 76100 Rehovot, Israel
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van der Boom ME, Milstein D. Cyclometalated phosphine-based pincer complexes: mechanistic insight in catalysis, coordination, and bond activation. Chem Rev 2003; 103:1759-92. [PMID: 12744693 DOI: 10.1021/cr960118r] [Citation(s) in RCA: 1483] [Impact Index Per Article: 70.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Milko E van der Boom
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot, 76100, Israel.
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DENSITY FUNCTIONAL STUDIES OF IRIDIUM CATALYZED ALKANE DEHYDROGENATION. ADVANCES IN INORGANIC CHEMISTRY 2003. [DOI: 10.1016/s0898-8838(03)54006-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Gusev DG, Lough AJ. Experimental and Computational Study of Pincer Complexes of Ruthenium with Py, CO, and N2 Ligands. Organometallics 2002. [DOI: 10.1021/om0205142] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitry G. Gusev
- Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario N2L 3V5, Canada
| | - Alan J. Lough
- Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario N2L 3V5, Canada
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