1
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Tandon H, Yadav P, Chakraborty T, Suhag V. Can chemical reactivity descriptors explain catalytic reactivity? J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Mandal U, Ghiviriga I, Abboud KA, Lester DW, Veige AS. Double Tethered Metallacyclobutane Catalyst for Cyclic Polymer Synthesis. J Am Chem Soc 2021; 143:17276-17283. [PMID: 34618432 DOI: 10.1021/jacs.1c08806] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work outlines an approach to creating a catalyst for cyclic polymer synthesis using readily available materials in only one or two steps. Combining commercially available molybdenum-alkylidene 1 with two equivalents of ene-ol proligand 2 rapidly produces, in quantitative yield (1H NMR spectroscopy), the double tethered metallacyclobutane complex 3. Characterized by variable temperature NMR studies and nuclear Overhauser effect spectroscopy (NOESY) experiments, complex 3 exhibits fluxional behavior in solution. Determined by single crystal X-ray diffraction, the solid-state structure of complex 3 reveals metrical parameters indicating that the metallacyclobutane is not predicted to undergo rapid retro-cycloaddition. However, complex 3 is a precatalyst for the polymerization of norbornene to produce cyclic polynorbornene. An NMR spectrum of a test polymerization indicates that only a small fraction of the precatalyst is activated upon exposure to monomer. Quantifying the active catalyst is possible by measuring vinyl resonances that appear in the 1H NMR spectrum. The vinyl resonances are attributable to the release of one of the tethers upon norbornene addition. Confirmation of the polymer cyclic topology comes from gel permeation chromatography (GPC), dynamic light scattering (DLS), and intrinsic viscosity (η) measurements. The double tethered metallacyclobutane complex is a novel design for catalytic cyclic polymer synthesis. The synthetic approach suggests that catalyst tuning is possible by a choice of the commercial alkylidene and alteration of the ene-ol proligand.
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Affiliation(s)
- Ushnish Mandal
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department of Chemistry, Center for NMR Spectroscopy, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A Abboud
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Daniel W Lester
- Polymer Characterization Research Technology Platform, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Adam S Veige
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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3
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Pablo Martínez J, Solà M, Poater A. Predictive Catalysis in Olefin Metathesis with Ru-based Catalysts with Annulated C 60 Fullerenes in the N-heterocyclic Carbenes. Chemistry 2021; 27:18074-18083. [PMID: 34523164 DOI: 10.1002/chem.202100840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Indexed: 11/09/2022]
Abstract
Predictive catalysis must be the tool that does not replace experiments, but acts as a selective agent, so that synthetic strategies of maximum profitability are used in the laboratory in a surgical way. Here, nanotechnology has been used in olefin metathesis from homogeneous Ru-NHC catalysts, specifically annulating a C60 fullerene to the NHC ligand. Based on results with the C60 in the backbone, a sterile change with respect to the catalysis of the metal center, an attempt has been made to bring C60 closer to the metal, by attaching it to one of the two C-N bonds of the imidazole group of the SIMes (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene) ligand (reference NHC ligand of the 2nd generation Grubbs catalysts) to increase the steric pressure of C60 in the first sphere of reactivity of the metal. The DFT calculated thermodynamics and the kinetics of SIMes-derived systems show that they are efficient catalysts for olefin metathesis.
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Affiliation(s)
- Juan Pablo Martínez
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Catalonia, Girona, Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Catalonia, Girona, Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Catalonia, Girona, Spain
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4
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Patra SG, Das NK. Recent advancement on the mechanism of olefin metathesis by Grubbs catalysts: A computational perspective. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Neto DHC, Dos Santos AAM, Da Silva JCS, Rocha WR, Dias RP. Propene Hydroformylation Reaction Catalyzed by HRh(CO)(BISBI): A Thermodynamic and Kinetic Analysis of the Full Catalytic Cycle. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniel H. Cruz Neto
- Faculté des Sciences d'Orsay UFR Sciences Université Paris‐Saclay 91400 Orsay Île‐de‐France France
| | - Artur A. M. Dos Santos
- LQCBIO: Laboratório de Química Computacional e Modelagem de Biomoléculas Instituto de Química e Biotecnologia, IQB Universidade Federal de Alagoas Campus A. C. Simões 57072‐900 Maceió AL Brazil
| | - Júlio C. S. Da Silva
- LQCBIO: Laboratório de Química Computacional e Modelagem de Biomoléculas Instituto de Química e Biotecnologia, IQB Universidade Federal de Alagoas Campus A. C. Simões 57072‐900 Maceió AL Brazil
- eCsMoLab: Laboratório de Estudos Computacionais em Sistemas Moleculares Departamento de Química, ICEx Universidade Federal de Minas Gerais 31270‐901 Pampulha Belo Horizonte, MG Brazil
| | - Willian R. Rocha
- eCsMoLab: Laboratório de Estudos Computacionais em Sistemas Moleculares Departamento de Química, ICEx Universidade Federal de Minas Gerais 31270‐901 Pampulha Belo Horizonte, MG Brazil
| | - Roberta P. Dias
- eCsMoLab: Laboratório de Estudos Computacionais em Sistemas Moleculares Departamento de Química, ICEx Universidade Federal de Minas Gerais 31270‐901 Pampulha Belo Horizonte, MG Brazil
- GIMMM: Grupo Interdisciplinar de Modelagem Molecular e Simulação de Materiais Núcleo Interdisciplinar de Ciências Exatas e Inovação Tecnológica ‐ NICEN, Campus do Agreste Universidade Federal de Pernambuco 55002‐970 Caruaru PE Brazil
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6
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Poater A, D'Alterio MC, Talarico G, Chauvin R. Arene vs. Alkene Substrates in Ru-Catalyzed Olefin Metathesis: a DFT Investigation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química; Universitat de Girona; 17003 Girona Catalonia Spain
| | - Massimo Christian D'Alterio
- Institut de Química Computacional i Catàlisi and Departament de Química; Universitat de Girona; 17003 Girona Catalonia Spain
- Dipartimento di Scienze Chimiche; Università di Napoli Federico II; Via Cintia 80126 Napoli Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche; Università di Napoli Federico II; Via Cintia 80126 Napoli Italy
| | - Remi Chauvin
- UPS, ICT-FR 2599; Université de Toulouse; 118 route de Narbonne 31062 Toulouse Cedex 9 France
- LCC (Laboratoire de Chimie de Coordination); CNRS; 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
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7
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Serebryanskaya TV, Kinzhalov MA, Bakulev V, Alekseev G, Andreeva A, Gushchin PV, Protas AV, Smirnov AS, Panikorovskii TL, Lippmann P, Ott I, Verbilo CM, Zuraev AV, Bunev AS, Boyarskiy VP, Kasyanenko NA. Water soluble palladium(ii) and platinum(ii) acyclic diaminocarbene complexes: solution behavior, DNA binding, and antiproliferative activity. NEW J CHEM 2020. [DOI: 10.1039/d0nj00060d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Water soluble Pd(ii) and Pt(ii)–ADC species synthesized via the metal-mediated coupling of isocyanides and 1,2-diaminobenzene have demonstrated antitumor potential.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Taras L. Panikorovskii
- Saint Petersburg State University
- St. Petersburg
- Russia
- Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic
- Kola Science Centre
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- D-38106 Braunschweig
- Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- D-38106 Braunschweig
- Germany
| | - Cyril M. Verbilo
- Research Institute for Physical Chemical Problems
- Belarusian State University
- 220006 Minsk
- Belarus
| | - Alexander V. Zuraev
- Research Institute for Physical Chemical Problems
- Belarusian State University
- 220006 Minsk
- Belarus
| | - Alexander S. Bunev
- Medicinal Chemistry Center
- Togliatti State University
- 445020 Togliatti
- Russia
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8
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Gimferrer M, Salvador P, Poater A. Computational Monitoring of Oxidation States in Olefin Metathesis. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00591] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martí Gimferrer
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17003 Girona, Catalonia, Spain
| | - Pedro Salvador
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17003 Girona, Catalonia, Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17003 Girona, Catalonia, Spain
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9
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Planer S, Jana A, Grela K. Ethyl Lactate: A Green Solvent for Olefin Metathesis. CHEMSUSCHEM 2019; 12:4655-4661. [PMID: 31412165 DOI: 10.1002/cssc.201901735] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/13/2019] [Indexed: 05/08/2023]
Abstract
Compatibility of selected, commercially available ruthenium olefin metathesis catalysts with ethyl lactate as solvent was evaluated using a range of substrates and conditions. In addition, the preparation of a metathesis catalyst in simplified manner by using the advantages of ethyl lactate was accomplished. The application of ethyl lactate facilitates product isolation (also allowing for lower ruthenium contamination in crude metathesis products) and improves the overall green angle of olefin metathesis.
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Affiliation(s)
- Sebastian Planer
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
| | - Anupam Jana
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
| | - Karol Grela
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
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10
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Paredes-Gil K, Mendizábal F, Jaque P. Further understanding of the Ru-centered [2+2] cycloreversion/cycloaddition involved into the interconversion of ruthenacyclobutane using the Grubbs catalysts from a reaction force analysis. J Mol Model 2019; 25:305. [PMID: 31494753 DOI: 10.1007/s00894-019-4150-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/08/2019] [Indexed: 11/28/2022]
Abstract
The chemical reactivity of the first- and second-generation Grubbs catalysts has always been a significant issue in olefin metathesis. In the present work, we study the [2+2] cycloreversion/cycloaddition and the alkylidene rotation involved into the interconversion of the ruthenacyclobutane intermediate, through the reaction force and reaction force constant analysis. It has been found that the structural contribution controls the barrier energy in the interconversion of ruthenacyclobutane via [2+2] cycloreversion/cycloaddition, which is slightly lower in the second generation of Grubbs catalysts while its electronic contribution is slightly higher, which unveils a major rigidity and donor/acceptor properties of the NHC. This finding explains a greater structural contribution in the rate constant. Moreover, on the basis of the reaction force constant, the process can be classified as "two-stage"-concerted reactions, noting a more asynchronous process when the first generation is used as a catalyst.Finally, a similar analysis into the alkylidene rotation was performed. It was determined that [2+2] cycloreversion and alkylidene rotations take place in a sequential manner, the energy barrier is again controlled by structural reorganization, and the pathway is less asynchronous.
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Affiliation(s)
- Katherine Paredes-Gil
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, P.O. Box 8940577, San Joaquín, Santiago, Chile.
| | - Fernando Mendizábal
- Facultad de Ciencias, Departamento de Química, Universidad de Chile, Las Palmeras 3425, Santiago, Chile
| | - Pablo Jaque
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingstone 1007, Santiago, Chile
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11
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12
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Ogba OM, Warner NC, O'Leary DJ, Grubbs RH. Recent advances in ruthenium-based olefin metathesis. Chem Soc Rev 2018; 47:4510-4544. [PMID: 29714397 PMCID: PMC6107346 DOI: 10.1039/c8cs00027a] [Citation(s) in RCA: 415] [Impact Index Per Article: 69.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ruthenium-based olefin metathesis catalysts, known for their functional group tolerance and broad applicability in organic synthesis and polymer science, continue to evolve as an enabling technology in these areas. A discussion of recent mechanistic investigations is followed by an overview of selected applications.
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Affiliation(s)
- O M Ogba
- Department of Chemistry, Pomona College, 645 North College Avenue, Claremont, California 91775, USA.
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13
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Tsipis AC. RETRACTED: DFT challenge of intermetallic interactions: From metallophilicity and metallaromaticity to sextuple bonding. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.08.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Kelly MW, Halliwell SC, Rodgers WJ, Pattle JD, Harvey JN, Ashfold MNR. Theoretical Investigations of the Reactions of N- and O-Containing Species on a C(100):H 2 × 1 Reconstructed Diamond Surface. J Phys Chem A 2017; 121:2046-2055. [DOI: 10.1021/acs.jpca.7b00466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark W. Kelly
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | | | - W. Jeff Rodgers
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | - Jason D. Pattle
- School
of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | - Jeremy N. Harvey
- K.U. Leuven, Department of Chemistry, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
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15
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Martínez JP, Vummaleti SVC, Falivene L, Nolan SP, Cavallo L, Solà M, Poater A. In Silico Olefin Metathesis with Ru-Based Catalysts Containing N-Heterocyclic Carbenes Bearing C60 Fullerenes. Chemistry 2016; 22:6617-23. [PMID: 27059290 DOI: 10.1002/chem.201600383] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Indexed: 11/11/2022]
Abstract
Density functional theory calculations have been used to explore the potential of Ru-based complexes with 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene (SIMes) ligand backbone (A) being modified in silico by the insertion of a C60 molecule (B and C), as olefin metathesis catalysts. To this end, we investigated the olefin metathesis reaction catalyzed by complexes A, B, and C using ethylene as the substrate, focusing mainly on the thermodynamic stability of all possible reaction intermediates. Our results suggest that complex B bearing an electron-withdrawing N-heterocyclic carbene improves the performance of unannulated complex A. The efficiency of complex B is only surpassed by complex A when the backbone of the N-heterocyclic carbene of complex A is substituted by two amino groups. The particular performance of complexes B and C has to be attributed to electronic factors, that is, the electronic-donating capacity of modified SIMes ligand rather than steric effects, because the latter are predicted to be almost identical for complexes B and C when compared to those of A. Overall, this study indicates that such Ru-based complexes B and C might have the potential to be effective olefin metathesis catalysts.
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Affiliation(s)
- Juan Pablo Martínez
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Catalonia, Spain
| | - Sai Vikrama Chaitanya Vummaleti
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Laura Falivene
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Steven P Nolan
- Department of Inorganic and Physical Chemistry, Universiteit Gent, Krijgslaan 281 - S3, 9000, Gent, Belgium.,Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Catalonia, Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Catalonia, Spain.
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16
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Minenkov Y, Chermak E, Cavallo L. Troubles in the Systematic Prediction of Transition Metal Thermochemistry with Contemporary Out-of-the-Box Methods. J Chem Theory Comput 2016; 12:1542-60. [DOI: 10.1021/acs.jctc.5b01163] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yury Minenkov
- King Abdullah University of Science and Technology (KAUST), Physical
Science and Engineering Division (PSE), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Edrisse Chermak
- King Abdullah University of Science and Technology (KAUST), Physical
Science and Engineering Division (PSE), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical
Science and Engineering Division (PSE), KAUST Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
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17
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Vidhani DV, Krafft ME, Alabugin IV. Gold(I)-Catalyzed Allenyl Cope Rearrangement: Evolution from Asynchronicity to Trappable Intermediates Assisted by Stereoelectronic Switching. J Am Chem Soc 2016; 138:2769-79. [DOI: 10.1021/jacs.5b12920] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dinesh V. Vidhani
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Marie E. Krafft
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Igor V. Alabugin
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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18
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Śliwa P, Kurleto K, Handzlik J, Rogalski S, Żak P, Wyrzykiewicz B, Pietraszuk C. Regioselectivity of Stoichiometric Metathesis of Vinylsilanes with Second-Generation Grubbs Catalyst: A Combined DFT and Experimental Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00878] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paweł Śliwa
- Faculty
of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland
| | - Kamil Kurleto
- Faculty
of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland
| | - Jarosław Handzlik
- Faculty
of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland
| | - Szymon Rogalski
- Faculty
of Chemistry, Adam Mickiewicz University in Poznań, Umultowska
89b, 61-614 Poznań, Poland
| | - Patrycja Żak
- Faculty
of Chemistry, Adam Mickiewicz University in Poznań, Umultowska
89b, 61-614 Poznań, Poland
| | - Bożena Wyrzykiewicz
- Faculty
of Chemistry, Adam Mickiewicz University in Poznań, Umultowska
89b, 61-614 Poznań, Poland
| | - Cezary Pietraszuk
- Faculty
of Chemistry, Adam Mickiewicz University in Poznań, Umultowska
89b, 61-614 Poznań, Poland
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19
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Torker S, Koh MJ, Khan RKM, Hoveyda AH. Regarding a Persisting Puzzle in Olefin Metathesis with Ru Complexes: Why are Transformations of Alkenes with a Small Substituent Z-Selective? Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00970] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sebastian Torker
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Ming Joo Koh
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - R. Kashif M. Khan
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Amir H. Hoveyda
- Department of Chemistry,
Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
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20
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Poater A. Moving from Classical Ru-NHC to Neutral or Charged Rh-NHC Based Catalysts in Olefin Metathesis. Molecules 2016; 21:177. [PMID: 26840290 PMCID: PMC6273139 DOI: 10.3390/molecules21020177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/13/2016] [Accepted: 01/28/2016] [Indexed: 11/26/2022] Open
Abstract
Considering the versatility of oxidation states of rhodium together with the successful background of ruthenium-N-heterocyclic carbene based catalysts in olefin metathesis, it is envisaged the exchange of the ruthenium of the latter catalysts by rhodium, bearing an open-shell neutral rhodium center, or a +1 charged one. In the framework of in silico experiments, density functional theory (DFT) calculations have been used to plot the first catalytic cycle that as a first step includes the release of the phosphine. DFT is, in this case, the tool that allows the discovery of the less endergonic reaction profile from the precatalytic species for the neutral catalyst with respect to the corresponding ruthenium one; increasing the endergonic character when dealing with the charged system.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain.
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21
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Paredes-Gil K, Jaque P. Theoretical characterization of first and second generation Grubbs catalysts in styrene cross-metathesis reactions: insights from conceptual DFT. Catal Sci Technol 2016. [DOI: 10.1039/c5cy00826c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reorganization energy and DFT-based reactivity descriptors revealed important issues regarding the performance of Grubbs catalysts.
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Affiliation(s)
- Katherine Paredes-Gil
- Departamento de Ciencias Químicas
- Facultad de Ciencias Exactas
- Universidad Andres Bello
- Santiago
- Chile
| | - Pablo Jaque
- Departamento de Ciencias Químicas
- Facultad de Ciencias Exactas
- Universidad Andres Bello
- Santiago
- Chile
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22
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Poater A, Cavallo L. A comprehensive study of olefin metathesis catalyzed by Ru-based catalysts. Beilstein J Org Chem 2015; 11:1767-80. [PMID: 26664596 PMCID: PMC4660983 DOI: 10.3762/bjoc.11.192] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/04/2015] [Indexed: 01/02/2023] Open
Abstract
During a Ru-catalyzed reaction of an olefin with an alkylidene moiety that leads to a metallacycle intermediate, the cis insertion of the olefin can occur from two different directions, namely side and bottom with respect to the phosphine or N-heterocyclic ligand (NHC), depending on the first or second generation Grubbs catalyst. Here, DFT calculations unravel to which extent the bottom coordination of olefins with respect is favored over the side coordination through screening a wide range of catalysts, including first and second generation Grubbs catalysts as well as the subsequent Hoveyda derivatives. The equilibrium between bottom and side coordination is influenced by sterics, electronics, and polarity of the solvent. The side attack is favored for sterically less demanding NHC and/or alkylidene ligands. Moreover the generation of a 14-electron species is also discussed, with either pyridine or phosphine ligands to dissociate.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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24
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Poater A, Pump E, Vummaleti SVC, Cavallo L. The Right Computational Recipe for Olefin Metathesis with Ru-Based Catalysts: The Whole Mechanism of Ring-Closing Olefin Metathesis. J Chem Theory Comput 2014; 10:4442-8. [DOI: 10.1021/ct5003863] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Albert Poater
- Institut
de Química Computacional i Catàlisi and Departament
de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain
| | - Eva Pump
- Institute
for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, A 8010 Graz, Austria
- Kaust
Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Sai Vikrama Chaitanya Vummaleti
- Kaust
Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- Kaust
Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
- Dipartimento
di Chimica e Biologia, Università di Salerno, Via Ponte
don Melillo, I-84084 Fisciano (SA), Italy
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25
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Torker S, Khan RKM, Hoveyda AH. The influence of anionic ligands on stereoisomerism of Ru carbenes and their importance to efficiency and selectivity of catalytic olefin metathesis reactions. J Am Chem Soc 2014; 136:3439-55. [PMID: 24533571 DOI: 10.1021/ja410606b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Investigations detailed herein provide insight regarding the mechanism of stereochemical inversion of stereogenic-at-Ru carbene complexes through a nonolefin metathesis-based polytopal rearrangement pathway. Computational analyses (DFT) reveal that there are two key factors that generate sufficient energy barriers that are responsible for the possibility of isolation and characterization of high-energy, but kinetically stable, intermediates: (1) donor-donor interactions that involve the anionic ligands and the strongly electron donating carbene groups and (2) dipolar effects arising from the syn relationship between the anionic groups (iodide and phenoxide). We demonstrate that a Brønsted acid lowers barriers to facilitate isomerization, and that the positive influence of a proton source is the result of its ability to diminish the repulsive electronic interactions originating from the anionic ligands. The implications of the present studies regarding a more sophisticated knowledge of the role of anionic units on the efficiency of Ru-catalyzed olefin metathesis reactions are discussed. The electronic basis for the increased facility with which allylic alcohols participate in olefin metathesis processes will be presented as well. Finally, we illustrate how a better understanding of the role of anionic ligands has served as the basis for successful design of Ru-based Z-selective catalysts for alkene metathesis.
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Affiliation(s)
- Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College , Chestnut Hill, Massachusetts 02467, United States
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26
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Vidhani DV, Krafft ME, Alabugin IV. Rh(I)-Catalyzed Transformation of Propargyl Vinyl Ethers into (E,Z)-Dienals: Stereoelectronic Role of trans Effect in a Metal-Mediated Pericyclic Process and a Shift from Homogeneous to Heterogeneous Catalysis During a One-Pot Reaction. J Org Chem 2013; 79:352-64. [DOI: 10.1021/jo402505f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Dinesh V. Vidhani
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Marie E. Krafft
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Igor V. Alabugin
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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27
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Lam JK, Pham HV, Houk KN, Vanderwal CD. Computation and experiment reveal that the ring-rearrangement metathesis of Himbert cycloadducts can be subject to kinetic or thermodynamic control. J Am Chem Soc 2013; 135:17585-94. [PMID: 24111571 DOI: 10.1021/ja409618p] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unusual observations in the ring-rearrangement metathesis of Himbert arene/allene cycloadducts to form fused polycylic lactams led to a more in-depth experimental study that yielded conflicting results. Differences in reactivity within related systems and unexpected changes in diastereoselectivity among other similar substrates were not readily explained on the basis of the experimental results. Computational investigations demonstrated substrate-dependent changes in reaction pathways (ring-opening metathesis/ring-closing metathesis [ROM/RCM] cascade vs ring-closing metathesis/ring-opening metathesis [RCM/ROM] cascade). Furthermore, some reactions were judged to be under thermodynamic control and others under kinetic control. The greater understanding of the most likely reaction pathways and their energetics provides a reasonable explanation for the previously irreconcilable results.
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Affiliation(s)
- Jonathan K Lam
- 1102 Natural Sciences II, Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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Affiliation(s)
- Dmitry G. Gusev
- Department of Chemistry, Wilfrid Laurier University, 75 University
Avenue West, Waterloo Ontario N2L 3C5, Canada
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30
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Trzaskowski B, Grela K. Structural and Mechanistic Basis of the Fast Metathesis Initiation by a Six-Coordinated Ruthenium Catalyst. Organometallics 2013. [DOI: 10.1021/om400233s] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Bartosz Trzaskowski
- Faculty of Chemistry, University of Warsaw, 02-093 Warszawa, Poland
- Centre of New Technologies, University of Warsaw, 02-089 Warszawa, Poland
| | - Karol Grela
- Faculty of Chemistry, University of Warsaw, 02-093 Warszawa, Poland
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31
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Miyazaki H, Herbert MB, Liu P, Dong X, Xu X, Keitz BK, Ung T, Mkrtumyan G, Houk KN, Grubbs RH. Z-Selective ethenolysis with a ruthenium metathesis catalyst: experiment and theory. J Am Chem Soc 2013; 135:5848-58. [PMID: 23547887 DOI: 10.1021/ja4010267] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The Z-selective ethenolysis activity of chelated ruthenium metathesis catalysts was investigated with experiment and theory. A five-membered chelated catalyst that was successfully employed in Z-selective cross metathesis reactions has now been found to be highly active for Z-selective ethenolysis at low ethylene pressures, while tolerating a wide variety of functional groups. This phenomenon also affects its activity in cross metathesis reactions and prohibits crossover reactions of internal olefins via trisubstituted ruthenacyclobutane intermediates. In contrast, a related catalyst containing a six-membered chelated architecture is not active for ethenolysis and seems to react through different pathways more reminiscent of previous generations of ruthenium catalysts. Computational investigations of the effects of substitution on relevant transition states and ruthenacyclobutane intermediates revealed that the differences of activities are attributed to the steric repulsions of the anionic ligand with the chelating groups.
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Affiliation(s)
- Hiroshi Miyazaki
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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32
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Minenkov Y, Occhipinti G, Jensen VR. Complete Reaction Pathway of Ruthenium-Catalyzed Olefin Metathesis of Ethyl Vinyl Ether: Kinetics and Mechanistic Insight from DFT. Organometallics 2013. [DOI: 10.1021/om301192a] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yury Minenkov
- Department of Chemistry, University of Bergen, Allégaten
41, N-5007 Bergen, Norway
| | - Giovanni Occhipinti
- Department of Chemistry, University of Bergen, Allégaten
41, N-5007 Bergen, Norway
| | - Vidar R. Jensen
- Department of Chemistry, University of Bergen, Allégaten
41, N-5007 Bergen, Norway
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33
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Dang Y, Wang ZX, Wang X. A Thorough DFT Study of the Mechanism of Homodimerization of Terminal Olefins through Metathesis with a Chelated Ruthenium Catalyst: From Initiation to Z Selectivity to Regeneration. Organometallics 2012. [DOI: 10.1021/om300784k] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yanfeng Dang
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, People's
Republic of China
| | - Zhi-Xiang Wang
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, People's
Republic of China
| | - Xiaotai Wang
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O.
Box 173364, Denver, Colorado 80217-3364, United States
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34
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Tuba R, Brothers EN, Reibenspies JH, Bazzi HS, Gladysz JA. Crystal Structure and Computational Investigation of an Analogue of Grubbs’ Second Generation Catalyst with a Fluorous Phosphine. Inorg Chem 2012; 51:9943-9. [DOI: 10.1021/ic301434g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Robert Tuba
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Edward N. Brothers
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Joseph H. Reibenspies
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Hassan S. Bazzi
- Department of Chemistry, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - John A. Gladysz
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
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35
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Selvaraju K, Jothi M, Kumaradhas P. Exploring the charge density distribution and the electrical characteristics of Oligo phenylene ethylene molecular nanowire using quantum chemical and charge density analysis. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.06.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Wang HY, Yim WL, Guo YL, Metzger JO. ESI-MS Studies and Calculations on Second-Generation Grubbs and Hoveyda–Grubbs Ruthenium Olefin Metathesis Catalysts. Organometallics 2012. [DOI: 10.1021/om200562c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hao-Yang Wang
- Shanghai Mass Spectrometry Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, 200032 Shanghai, People's Republic of China
| | - Wai-Leung Yim
- Institute of High Performance Computing, 1 Fusionopolis Way, #16-16 Connexis,
Singapore 138632, Singapore
| | - Yin-Long Guo
- Shanghai Mass Spectrometry Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Lingling Road 345, 200032 Shanghai, People's Republic of China
| | - Jürgen O. Metzger
- Institut für Reine und
Angewandte Chemie, Carl von Ossietzky Universität Oldenburg, Carl-von-Ossietzky-Straße
9-11, 26129 Oldenburg, Germany
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37
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Liu P, Xu X, Dong X, Keitz BK, Herbert MB, Grubbs RH, Houk KN. Z-Selectivity in olefin metathesis with chelated Ru catalysts: computational studies of mechanism and selectivity. J Am Chem Soc 2012; 134:1464-7. [PMID: 22229694 DOI: 10.1021/ja2108728] [Citation(s) in RCA: 158] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The mechanism and origins of Z-selectivity in olefin metathesis with chelated Ru catalysts were explored using density functional theory. The olefin approaches from the "side" position of the chelated Ru catalysts, in contrast to reactions with previous unchelated Ru catalysts that favor the bottom-bound pathway. Steric repulsions between the substituents on the olefin and the N-substituent on the N-heterocyclic carbene ligand lead to highly selective formation of the Z product.
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Affiliation(s)
- Peng Liu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, USA
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38
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Minenkov Y, Singstad Å, Occhipinti G, Jensen VR. The accuracy of DFT-optimized geometries of functional transition metal compounds: a validation study of catalysts for olefin metathesis and other reactions in the homogeneous phase. Dalton Trans 2012; 41:5526-41. [DOI: 10.1039/c2dt12232d] [Citation(s) in RCA: 358] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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39
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Minenkov Y, Occhipinti G, Heyndrickx W, Jensen VR. The Nature of the Barrier to Phosphane Dissociation from Grubbs Olefin Metathesis Catalysts. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100932] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Nelson DJ, Carboni D, Ashworth IW, Percy JM. Toward a simulation approach for alkene ring-closing metathesis: scope and limitations of a model for RCM. J Org Chem 2011; 76:8386-93. [PMID: 21913728 PMCID: PMC3675522 DOI: 10.1021/jo201611z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
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A published model for revealing solvent effects on the ring-closing metathesis (RCM) reaction of diethyl diallylmalonate 7 has been evaluated over a wider range of conditions, to assess its suitability for new applications. Unfortunately, the model is too flexible and the published rate constants do not agree with experimental studies in the literature. However, by fixing the values of important rate constants and restricting the concentration ranges studied, useful conclusions can be drawn about the relative rates of RCM of different substrates, precatalyst concentration can be simulated accurately and the effect of precatalyst loading can be anticipated. Progress has also been made toward applying the model to precatalyst evaluation, but further modifications to the model are necessary to achieve much broader aims.
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Affiliation(s)
- David J Nelson
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, United Kingdom
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41
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Steinmann SN, Corminboeuf C. Comprehensive Benchmarking of a Density-Dependent Dispersion Correction. J Chem Theory Comput 2011; 7:3567-77. [DOI: 10.1021/ct200602x] [Citation(s) in RCA: 333] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stephan N. Steinmann
- Laboratory for Computational Molecular Design, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Clemence Corminboeuf
- Laboratory for Computational Molecular Design, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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42
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Yang HC, Huang YC, Lan YK, Luh TY, Zhao Y, Truhlar DG. Carbene Rotamer Switching Explains the Reverse Trans Effect in Forming the Grubbs Second-Generation Olefin Metathesis Catalyst. Organometallics 2011. [DOI: 10.1021/om200529m] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hsiao-Ching Yang
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City, Taiwan, Republic of China
| | - Yen-Chin Huang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yi-Kang Lan
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City, Taiwan, Republic of China
| | - Tien-Yau Luh
- Department of Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Yan Zhao
- Commercial Print Engine Lab., HP Laboratories, Hewlett-Packard Co., Palo Alto, California, United States
| | - Donald G. Truhlar
- Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota, United States
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43
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Occhipinti G, Jensen VR. Nature of the Transition Metal–Carbene Bond in Grubbs Olefin Metathesis Catalysts. Organometallics 2011. [DOI: 10.1021/om200181y] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Occhipinti
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Vidar R. Jensen
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
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44
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Kulkarni AD, Truhlar DG. Performance of Density Functional Theory and Møller–Plesset Second-Order Perturbation Theory for Structural Parameters in Complexes of Ru. J Chem Theory Comput 2011; 7:2325-32. [DOI: 10.1021/ct200188n] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anant D. Kulkarni
- Department of Chemistry and Supercomputing Institute, University of Minnesota, 207 Pleasant Street S.E., Minneapolis, Minnesota 55455-0431, United States
| | - Donald G. Truhlar
- Department of Chemistry and Supercomputing Institute, University of Minnesota, 207 Pleasant Street S.E., Minneapolis, Minnesota 55455-0431, United States
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45
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Sajith P, Suresh CH. Bond dissociation energies of ligands in square planar Pd(II) and Pt(II) complexes: An assessment using trans influence. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.11.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Moerdyk JP, Bielawski CW. Olefin Metathesis Catalysts Containing N,N′-Diamidocarbenes. Organometallics 2011. [DOI: 10.1021/om200061c] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jonathan P. Moerdyk
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Christopher W. Bielawski
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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47
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Collado A, Esteruelas MA, Oñate E. Hydride Alkenylcarbyne Osmium Complexes versus Cyclopentadienyl Type Half-Sandwich Ruthenium Derivatives. Organometallics 2011. [DOI: 10.1021/om1011962] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Alba Collado
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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48
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Mathew J, Suresh CH. Assessment of Stereoelectronic Effects in Grubbs First-Generation Olefin Metathesis Catalysis Using Molecular Electrostatic Potential. Organometallics 2011. [DOI: 10.1021/om101034a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jomon Mathew
- Computational Modeling and Simulation Section, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, India 695019
| | - Cherumuttathu H. Suresh
- Computational Modeling and Simulation Section, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, India 695019
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49
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Richley JC, Harvey JN, Ashfold MN. CH2 group migration between the H-terminated 2×1 reconstructed {100} and {111} surfaces of diamond. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-1203-j17-32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractVarious possible routes for the migration of a CH2 group between the H-terminated 2×1 reconstructed {100} surface and the H-terminated {111} surface of diamond have been explored using a hybrid quantum mechanical/molecular mechanical method. The calculated energies suggest that movement of such surface bound species across step edges should be a facile process under typical diamond growth conditions, and that such migrations are significant contributors to the observed morphologies of diamond grown by chemical vapor deposition methods.
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50
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