1
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Chen K, Zhu H, Liu S, Bai J, Guo Y, Ding K, Peng Q, Wang X. Switch in Selectivities by Dinuclear Nickel Catalysis: 1,4-Hydroarylation of 1,3-Dienes to Z-Olefins. J Am Chem Soc 2023. [PMID: 37903244 DOI: 10.1021/jacs.3c09283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
One of the most challenging tasks in organic synthesis is to control selectivities, especially switching the well-known selectivity to obtain new isomers that were previously inaccessible. Inspired by biological catalysis involving multiple metal centers, catalysis enabled by binuclear metal complexes offers the potential to induce reactivity and selectivity that might not be available to mononuclear catalysts. Herein, we describe that using a macrocyclic bis pyridyl diimine dinickel complex as the catalyst, the commonly observed 4,3-regioselectivity of hydroarylation of 1,3-dienes is switched to 1,4-hydroarylation with thermodynamically less stable Z-stereoselectivity, offering challenging synthetic target Z-olefins. DFT calculations show that the activation of 1,3-diene proceeds through dinuclear Ni-diolefin coordination, and the synergistic effects of two Ni nuclei enable reactivity and selectivity of this binuclear catalysis substantially different from those of mononuclear nickel complexes in the current reaction.
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Affiliation(s)
- Ke Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hongdan Zhu
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shuang Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Kuiling Ding
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaoming Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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2
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Thermally Stable and Highly Efficient N,N,N-Cobalt Olefin Polymerization Catalysts Affixed with N-2,4-Bis(Dibenzosuberyl)-6-Fluorophenyl Groups. Catalysts 2022. [DOI: 10.3390/catal12121569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The cobalt(II) chloride N,N,N-pincer complexes, [2-{(2,4-(C15H13)2-6-FC6H2)N=CMe}-6-(ArN=CMe)C5H3N]CoCl2 (Ar = 2,6-Me2C6H3) (Co1), 2,6-Et2C6H3 (Co2), 2,6-i-Pr2C6H3 (Co3), 2,4,6-Me3C6H2 (Co4), 2,6-Et2-4-MeC6H2 (Co5), and [2,6-{(2,4-(C15H13)2-6-FC6H2)N=CMe}2C5H3N]CoCl2 (Co6), each containing at least one N-2,4-bis(dibenzosuberyl)-6-fluorophenyl group, were synthesized in good yield from their corresponding unsymmetrical (L1–L5) and symmetrical bis(imino)pyridines (L6). The molecular structures of Co1 and Co2 spotlighted their distorted square pyramidal geometries (τ5 value range: 0.23–0.29) and variations in steric hindrance offered by the dissimilar N-aryl groups. On activation with either MAO or MMAO, Co1–Co6 all displayed high activities for ethylene polymerization, with levels falling in the order: Co1 > Co4 > Co5 > Co2 > Co3 > Co6. Indeed, the least sterically hindered 2,6-dimethyl Co1 in combination with MAO exhibited a very high activity of 1.15 × 107 g PE mol−1 (Co) h−1 at the operating temperature of 70 °C, which dropped by only 15% at 80 °C and 43% at 90 °C. Vinyl-terminated polyethylenes of high linearity and narrow dispersity were generated by all catalysts, with the most sterically hindered, Co3 and Co6, producing the highest molecular weight polymers [Mw range: 30.26–33.90 kg mol−1 (Co3) and 42.90–43.92 kg mol−1 (Co6)]. In comparison with structurally related cobalt catalysts, it was evident that the presence of the N-2,4-bis(dibenzosuberyl)-6-fluorophenyl groups had a limited effect on catalytic activity but a marked effect on thermal stability.
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3
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Chen K, Zhu H, Li Y, Peng Q, Guo Y, Wang X. Dinuclear Cobalt Complex-Catalyzed Stereodivergent Semireduction of Alkynes: Switchable Selectivities Controlled by H 2O. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ke Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Hongdan Zhu
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yuling Li
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yinlong Guo
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Xiaoming Wang
- State Key Laboratory of Oganometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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4
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Khoshsefat M, Ma Y, Sun WH. Multinuclear late transition metal catalysts for olefin polymerization. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213788] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Richard J, Joseph J, Wang C, Ciesielski A, Weiss J, Samorì P, Mamane V, Wytko JA. Functionalized 4,4'-Bipyridines: Synthesis and 2D Organization on Highly Oriented Pyrolytic Graphite. J Org Chem 2021; 86:3356-3366. [PMID: 33539085 DOI: 10.1021/acs.joc.0c02708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Commercial 4,4'-bipyridine is a popular scaffold that is primarily employed as a linker in 3D self-assembled architectures such as metallo-organic frameworks or as a connector in 2D networks. The introduction of alkyl substituents on the bipyridine skeleton is instrumental when 4,4'-bipyridines are used as linkers to form 2D self-assembled patterns on surfaces. Here, several synthetic strategies to access 4,4'-bipyridines functionalized at various positions are described. These easily scalable reactions have been used to introduce a range of alkyl substituents at positions 2 and 2' or 3 and 3' and at positions 2,2' and 6,6' in the case of tetra-functionalization. Scanning tunneling microscopy studies of molecular monolayers physisorbed at the graphite-solution interface revealed different supramolecular patterns whose motifs are primarily dictated by the nature and position of the alkyl chains.
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Affiliation(s)
- Jimmy Richard
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Jean Joseph
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Can Wang
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Artur Ciesielski
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean Weiss
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Paolo Samorì
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Victor Mamane
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Jennifer A Wytko
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
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6
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Bariashir C, Zhang R, Vignesh A, Ma Y, Liang T, Sun WH. Enhancing Ethylene Polymerization of NNN-Cobalt(II) Precatalysts Adorned with a Fluoro-substituent. ACS OMEGA 2021; 6:4448-4460. [PMID: 33623851 PMCID: PMC7893795 DOI: 10.1021/acsomega.0c05916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Unsymmetrical 2-(1-(2,4-dibenzhydryl-6-fluorophenylimino)ethyl)-6-(1-alkylphenyl-imino)ethyl)pyridine compounds (Ar = 2,6-Me2C6H3 in L1; 2,6-Et2C6H3 in L2; 2,6- i Pr2C6H3 in L3; 2,4,6-Me3C6H2 in L4; 2,6-Et2-4-Me-C6H2 in L5) were prepared and characterized. The treatment of CoCl2 with the compounds L1-L5 afforded the corresponding cobalt complexes Co1-Co5 in excellent yields. The molecular structures of Co3 and Co4 were determined by single-crystal X-ray diffraction, revealing the distorted-square-pyramidal geometry with three nitrogen atoms and two chlorine atoms around the cobalt center. Compared with previous bis(imino)pyridylcobalt analogues, all of the cobalt precatalysts displayed exceptionally higher activities toward ethylene polymerization with 1.32 × 107 g (PE) mol-1 (Co) h-1 at 60 °C in the presence of a co-catalyst MAO or MMAO. These cobalt catalysts produced highly linear polyethylene (PE) waxes with vinyl end groups and low molecular weight (M w up to 8.23 kg mol-1) along with a relatively lower melting point (all-round T ms < 128 °C). The narrow dispersity of resultant polyethylenes indicated the single-site active species of the catalytic system.
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Affiliation(s)
- Chantsalnyam Bariashir
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Randi Zhang
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Arumugam Vignesh
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
| | - Yanping Ma
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
| | - Tongling Liang
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Hua Sun
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry,
Chinese Academy of Sciences, Beijing 100190, China
- CAS
Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy
of Sciences, Lanzhou 730000, China
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7
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Qin Y, Li T, Chen X, Li J, Meng X, You Q, Xie G. Asymmetric bis-salicylaldiminato binuclear titanium complexes for ethylene polymerization and copolymerization. NEW J CHEM 2021. [DOI: 10.1039/d1nj01049b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric binuclear Ti complexes were synthesized, which exhibited excellent activity for ethylene homopolymerization and copolymerization with 1-hexene or norbornene and high comonomer insertion efficiency under MMAO activation.
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Affiliation(s)
- Yawen Qin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Tingcheng Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Xiong Chen
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Jian Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Xiang Meng
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Qingliang You
- Key Laboratory of Optoelectronic Chemical Materials and Devices
- Ministry of Education
- School of Chemical and Environmental Engineering
- Jianghan University
- Wuhan 430056
| | - Guangyong Xie
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science
- South-Central University for Nationalities
- Wuhan 430074
- China
- Hubei Engineering Technology Research Centre of Energy Polymer Materials
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8
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Zada M, Vignesh A, Suo H, Ma Y, Liu H, Sun WH. NNN-type iron(II) complexes consisting sterically hindered dibenzocycloheptyl group: Synthesis and catalytic activity towards ethylene polymerization. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110981] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Rahimipour E, Zohuri G, Kimiaghalam M, Khoshsefat M. Synthesis of vinyl-terminated HDPE and PE/xGnP composite using dinuclear Co-based catalyst. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Imidazole‐Bridged Tetrameric Group(IV) Heteroleptic Complexes from the Spontaneous Metal‐Ligand Assembly of a Potentially
N
4
‐Tetradentate Ligand. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Khoshsefat M, Dechal A, Ahmadjo S, Mortazavi SMM, Zohuri G, Soares JB. Amorphous to high crystalline PE made by mono and dinuclear Fe-based catalysts. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Zhang Q, Ma Y, Suo H, Solan GA, Liang T, Sun W. Co‐catalyst effects on the thermal stability/activity of
N,N,N
‐Co ethylene polymerization Catalysts Bearing Fluoro‐Substituted N‐2,6‐dibenzhydrylphenyl groups. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5134] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- CAS Research/Education Center for Excellence in Molecular Sciences and International SchoolUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Hongyi Suo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- CAS Research/Education Center for Excellence in Molecular Sciences and International SchoolUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Chemistry, University of LeicesterUniversity Road Leicester LE1 7RH UK
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- CAS Research/Education Center for Excellence in Molecular Sciences and International SchoolUniversity of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
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13
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Activity and Thermal Stability of Cobalt(II)-Based Olefin Polymerization Catalysts Adorned with Sterically Hindered Dibenzocycloheptyl Groups. Molecules 2019; 24:molecules24102007. [PMID: 31130640 PMCID: PMC6572594 DOI: 10.3390/molecules24102007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 11/24/2022] Open
Abstract
Five examples of unsymmetrical 2-(2,4-bis(dibenzocycloheptyl)-6-methylphenyl- imino)ethyl)-6-(1-(arylyimino)ethyl)pyridine derivatives (aryl = 2,6-Me2C6H3 in L1; 2,6-Et2C6H3 in L2; 2,6-i-Pr2C6H3 in L3; 2,4,6-Me3C6H2 in L4 and 2,6-Et2-4-MeC6H2 in L5) were prepared and characterized. Treatment with CoCl2 offered the corresponding cobalt precatalysts Co1–Co5, which were characterized by FT-IR and NMR spectroscopy as well as elemental analysis. The molecular structures of Co3 and Co4 determined by single crystal X-ray diffraction revealed distorted square pyramidal geometries with τ5 values of 0.052–0.215. Activated with either MAO or MMAO, the precatalysts displayed high activities in ethylene polymerization, where Co1 with the least bulky substituents exhibited a peak activity of 1.00 × 107 g PE mol−1 (Co) h−1 at 60 °C. With MAO as a cocatalyst, the activity was reduced only by one order of magnitude at 90 °C, which implies thermally stable active sites. The polymerization product was highly linear polyethylene with vinyl end groups. Co3 with the most sterically hindered active sites was capable of generating polyethylene of high molecular weight, reaching 6.46 × 105 g mol−1. Furthermore, high melting point and unimodal molecular weight distribution were observed in the resulting polyethylene. It must be stressed that the thermal stability of the catalyst and the molecular weight of the obtained polyethylene attain the highest values reported for the unsymmetrical 2,6-bis(imino)pyridylcobalt (II) chloride precatalysts.
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14
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Chen Q, Suo H, Zhang W, Zhang R, Solan GA, Liang T, Sun WH. 1,5-Naphthyl-linked bis(imino)pyridines as binucleating scaffolds for dicobalt ethylene oligo-/polymerization catalysts: exploring temperature and steric effects. Dalton Trans 2019; 48:8264-8278. [DOI: 10.1039/c9dt01235d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The title dinuclear Co complexes showed high activity for ethylene oligo-/polymerization with the run temperature having an unexpected effect on the PE to oligomer ratio.
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Affiliation(s)
- Qiang Chen
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Hongyi Suo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Randi Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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15
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Chen Q, Zhang W, Solan GA, Zhang R, Guo L, Hao X, Sun WH. CH(phenol)-Bridged Bis(imino)pyridines as Compartmental Supports for Diiron Precatalysts for Ethylene Polymerization: Exploring Cooperative Effects on Performance. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00602] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qiang Chen
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Materials Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
| | - Randi Zhang
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Liwei Guo
- School of Materials Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
| | - Xiang Hao
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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16
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Suo H, Solan GA, Ma Y, Sun WH. Developments in compartmentalized bimetallic transition metal ethylene polymerization catalysts. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Luconi L, Rossin A, Tuci G, Gafurov Z, Lyubov DM, Trifonov AA, Cicchi S, Ba H, Pham‐Huu C, Yakhvarov D, Giambastiani G. Benzoimidazole‐Pyridylamido Zirconium and Hafnium Alkyl Complexes as Homogeneous Catalysts for Tandem Carbon Dioxide Hydrosilylation to Methane. ChemCatChem 2018. [DOI: 10.1002/cctc.201800077] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lapo Luconi
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR Via Madonna del Piano, 10 50019 Sesto Fiorentino (Florence) Italy
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR Via Madonna del Piano, 10 50019 Sesto Fiorentino (Florence) Italy
| | - Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR Via Madonna del Piano, 10 50019 Sesto Fiorentino (Florence) Italy
- Department of Chemistry “Ugo Schiff”University of Florence 50019 Sesto Fiorentino Italy
| | - Zufar Gafurov
- A.E.Arbuzov Institute of Organic and Physical ChemistryRussian Academy of Sciences Arbuzov str. 8 420088 Kazan Russian Federation
- Kazan Federal University 420008 Kazan Russian Federation
| | - Dmitrii M. Lyubov
- G. A. Razuvaev Institute of Organometallic Chemistry of theRussian Academy of Sciences Tropinina 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of theRussian Academy of Sciences Tropinina 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Stefano Cicchi
- Department of Chemistry “Ugo Schiff”University of Florence 50019 Sesto Fiorentino Italy
| | - Housseinou Ba
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES-CNRS)UMR 7515 CNRS-University of Strasbourg (UdS) France
| | - Cuong Pham‐Huu
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES-CNRS)UMR 7515 CNRS-University of Strasbourg (UdS) France
| | - Dmitry Yakhvarov
- A.E.Arbuzov Institute of Organic and Physical ChemistryRussian Academy of Sciences Arbuzov str. 8 420088 Kazan Russian Federation
- Kazan Federal University 420008 Kazan Russian Federation
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR Via Madonna del Piano, 10 50019 Sesto Fiorentino (Florence) Italy
- Kazan Federal University 420008 Kazan Russian Federation
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18
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Klaß M, Krahmer J, Näther C, Tuczek F. Design, synthesis, and evaluation of nickel dipyridylmethane complexes for Coordination-Induced Spin State Switching (CISSS). Dalton Trans 2018; 47:1261-1275. [DOI: 10.1039/c7dt03952b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination of pyridine to a nickel(ii) dipyridylmethane complex changes the spin state.
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Affiliation(s)
- Michaela Klaß
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Jan Krahmer
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Christian Näther
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Felix Tuczek
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
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19
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Dammann W, Buban T, Schiller C, Burger P. Dinuclear tethered pyridine, diimine complexes. Dalton Trans 2018; 47:12105-12117. [DOI: 10.1039/c8dt02347f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and structures of aryl tethered pyridine, diimine complexes.
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Affiliation(s)
- Wiebke Dammann
- Institut für Anorganische und Angewandte Chemie
- Fachbereich Chemie
- Universität Hamburg
- 20146 Hamburg
- Germany
| | - Tabea Buban
- Institut für Anorganische und Angewandte Chemie
- Fachbereich Chemie
- Universität Hamburg
- 20146 Hamburg
- Germany
| | - Carl Schiller
- Institut für Anorganische und Angewandte Chemie
- Fachbereich Chemie
- Universität Hamburg
- 20146 Hamburg
- Germany
| | - Peter Burger
- Institut für Anorganische und Angewandte Chemie
- Fachbereich Chemie
- Universität Hamburg
- 20146 Hamburg
- Germany
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20
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Chen Q, Zhang W, Solan GA, Liang T, Sun WH. Methylene-bridged bimetallic bis(imino)pyridine-cobaltous chlorides as precatalysts for vinyl-terminated polyethylene waxes. Dalton Trans 2018; 47:6124-6133. [PMID: 29666852 DOI: 10.1039/c8dt00907d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Dicobalt precatalysts displayed high activities for polymerizing ethylene to highly linear vinyl-polyethylenes.
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Affiliation(s)
- Qiang Chen
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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21
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Ren H, Zhou YP, Bai Y, Cui C, Driess M. Cobalt-Catalyzed Regioselective Borylation of Arenes: N-Heterocyclic Silylene as an Electron Donor in the Metal-Mediated Activation of C−H Bonds. Chemistry 2017; 23:5663-5667. [DOI: 10.1002/chem.201605937] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Hailong Ren
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Yu-Peng Zhou
- Department of Chemistry: Metalorganics and Inorganic Materials Sekr C2; Technische Universität Berlin; Strasse des 17. Juni 135 Berlin 10623 Germany
| | - Yunping Bai
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
| | - Chunming Cui
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P. R. China
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Sekr C2; Technische Universität Berlin; Strasse des 17. Juni 135 Berlin 10623 Germany
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22
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Luconi L, Kissel AA, Rossin A, Khamaletdinova NM, Cherkasov AV, Tuci G, Fukin GK, Trifonov AA, Giambastiani G. C
1 and Cs 2-pyridylethylanilido zirconium(iv), yttrium(iii) and lutetium(iii) complexes: synthesis, characterization and catalytic activity in the isoprene polymerization. NEW J CHEM 2017. [DOI: 10.1039/c6nj03193e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organolanthanide containing Cs and C1-symmetric 2-pyridylethylanilido ligands have been scrutinized as catalyst precursors for the isoprene polymerization.
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Affiliation(s)
- Lapo Luconi
- Institute of Chemistry of OrganoMetallic Compounds
- ICCOM-CNR
- Florence
- Italy
| | - Alexander A. Kissel
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds
- ICCOM-CNR
- Florence
- Italy
| | - Nadiya M. Khamaletdinova
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds
- ICCOM-CNR
- Florence
- Italy
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow, GSP-1
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds
- ICCOM-CNR
- Florence
- Italy
- Kazan Federal University
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23
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Yue E, Zeng Y, Zhang W, Sun Y, Cao XP, Sun WH. Highly linear polyethylenes using the 2-(1-(2,4-dibenzhydrylnaphthylimino)ethyl)-6-(1-(arylimino)ethyl)-pyridylcobalt chlorides: synthesis, characterization and ethylene polymerization. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0157-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Khoshsefat M, Zohuri GH, Ramezanian N, Ahmadjo S, Haghpanah M. Polymerization of ethylene using a series of binuclear and a mononuclear Ni (II)-based catalysts. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28186] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mostafa Khoshsefat
- Department of Catalyst; Iran Polymer and Petrochemical Institute (IPPI); Tehran PO Box 14965/115 Iran
| | - Gholam Hossein Zohuri
- Department of Chemistry, Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775 Iran
| | - Navid Ramezanian
- Department of Chemistry, Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775 Iran
| | - Saeid Ahmadjo
- Department of Catalyst; Iran Polymer and Petrochemical Institute (IPPI); Tehran PO Box 14965/115 Iran
| | - Meisam Haghpanah
- Department of Chemistry, Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775 Iran
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25
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Huang F, Zhang W, Yue E, Liang T, Hu X, Sun WH. Controlling the molecular weights of polyethylene waxes using the highly active precatalysts of 2-(1-aryliminoethyl)-9-arylimino-5,6,7,8-tetrahydrocycloheptapyridylcobalt chlorides: synthesis, characterization, and catalytic behavior. Dalton Trans 2016; 45:657-66. [DOI: 10.1039/c5dt03779d] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-(1-aryliminoethyl)-9-arylimino-5,6,7,8-tetrahydrocycloheptapyridylcobalt chlorides polymerized ethylene in high activities, producing useful waxes.
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Affiliation(s)
- Fang Huang
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
| | - Wenjuan Zhang
- Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Erlin Yue
- Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tongling Liang
- Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xinquan Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Wen-Hua Sun
- Key laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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26
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Zhang S, Xing Q, Sun WH. Frustratingly synergic effect of cobalt–nickel heterometallic precatalysts on ethylene reactivity: the cobalt and its heteronickel complexes bearing 2-methyl-2,4-bis(6-aryliminopyridin-2-yl)-1H-1,5-benzodiazepines. RSC Adv 2016. [DOI: 10.1039/c6ra13048h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
The title complexes showed good activities toward ethylene reactivity when obtained oligomers followed a Poisson distribution, but the mononuclear cobalt complexes showed higher activities than the cobalt–nickel analogues.
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Affiliation(s)
- Shu Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Qifeng Xing
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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27
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Liao KY, Hsu CW, Chi Y, Hsu MK, Wu SW, Chang CH, Liu SH, Lee GH, Chou PT, Hu Y, Robertson N. Pt(II) Metal Complexes Tailored with a Newly Designed Spiro-Arranged Tetradentate Ligand; Harnessing of Charge-Transfer Phosphorescence and Fabrication of Sky Blue and White OLEDs. Inorg Chem 2015; 54:4029-38. [DOI: 10.1021/acs.inorgchem.5b00281] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kuan-Yu Liao
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Che-Wei Hsu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ming-Kuan Hsu
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Szu-Wei Wu
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Chih-Hao Chang
- Department of Photonics Engineering, Yuan Ze University, Chungli 32003, Taiwan
| | - Shih-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Yue Hu
- EaStCHEM, School of Chemistry, University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh EH9 3 FJ, U.K
| | - Neil Robertson
- EaStCHEM, School of Chemistry, University of Edinburgh, King’s Buildings, West Mains Road, Edinburgh EH9 3 FJ, U.K
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28
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29
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Albrecht K, Higashimura H, Yamamoto K. Synthesis and Properties of Nitrogen-Introduced Phenylazomethine Dendrimer. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.891746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ken Albrecht
- a Chemical Resources Laboratory , Tokyo Institute of Technology , Kanagawa , Japan
| | - Hideyuki Higashimura
- b Advanced Materials Research Laboratory , Sumitomo Chemical Co. , Ibaraki , Japan
| | - Kimihisa Yamamoto
- a Chemical Resources Laboratory , Tokyo Institute of Technology , Kanagawa , Japan
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30
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Xing Q, Zhao T, Du S, Yang W, Liang T, Redshaw C, Sun WH. Biphenyl-Bridged 6-(1-Aryliminoethyl)-2-iminopyridylcobalt Complexes: Synthesis, Characterization, and Ethylene Polymerization Behavior. Organometallics 2014. [DOI: 10.1021/om4010884] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Qifeng Xing
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Tong Zhao
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Shizhen Du
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Wenhong Yang
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Carl Redshaw
- Department
of Chemistry, University of Hull, Hull HU6 7RX, U.K
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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31
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Lyubov DM, Luconi L, Rossin A, Tuci G, Cherkasov AV, Fukin GK, Giambastiani G, Trifonov AA. Metal-to-Ligand Alkyl Migration Inducing Carbon-Sulfur Bond Cleavage in Dialkyl Yttrium Complexes Supported by Thiazole-Containing Amidopyridinate Ligands: Synthesis, Characterization, and Catalytic Activity in the Intramolecular Hydroamination Reaction. Chemistry 2014; 20:3487-99. [DOI: 10.1002/chem.201303853] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Indexed: 11/08/2022]
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32
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Li L, Wu C, Liu D, Li S, Cui D. Binuclear Rare-Earth-Metal Alkyl Complexes Ligated by Phenylene-Bridged β-Diketiminate Ligands: Synthesis, Characterization, and Catalysis toward Isoprene Polymerization. Organometallics 2013. [DOI: 10.1021/om400105t] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lei Li
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s
Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039,
People’s Republic of China
| | - Chunji Wu
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s
Republic of China
| | - Dongtao Liu
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s
Republic of China
| | - Shihui Li
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s
Republic of China
| | - Dongmei Cui
- State Key Laboratory of Polymer
Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s
Republic of China
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33
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Luconi L, Rossin A, Motta A, Tuci G, Giambastiani G. Group IV organometallic compounds based on dianionic "pincer" ligands: synthesis, characterization, and catalytic activity in intramolecular hydroamination reactions. Chemistry 2013; 19:4906-21. [PMID: 23418031 DOI: 10.1002/chem.201203644] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Indexed: 11/11/2022]
Abstract
Neutral Zr(IV) and Hf(IV) diamido complexes stabilized by unsymmetrical dianionic N,C,N' pincer ligands have been prepared through the simplest and convenient direct metal-induced Caryl-H bond activation. Simple ligand modification has contributed to highlight the non-innocent role played by the donor atom set in the control of the cyclometallation kinetics. The as-prepared bis-amido catalysts were found to be good candidates for the intramolecular hydroamination/cyclization of primary aminoalkenes. The ability of these compounds to promote such a catalytic transformation efficiently (by providing, in some cases, fast and complete substrate conversion at room temperature) constitutes a remarkable step forward toward catalytic systems that can operate at relatively low catalyst loading and under milder reaction conditions. Kinetic studies and substrate-scope investigations, in conjunction with preliminary DFT calculations on the real systems, were used to elucidate the effects of the substrate substitution on the catalyst performance and to support the most reliable mechanistic path operative in the hydroamination reaction.
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Affiliation(s)
- Lapo Luconi
- Institute of Chemistry of Organometallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10-50019 Sesto F.no Florence, Italy
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34
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A catalytic and DFT study of selective ethylene oligomerization by nickel(II) oxime-based complexes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2012.09.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Xing Q, Zhao T, Qiao Y, Wang L, Redshaw C, Sun WH. Synthesis, characterization and ethylene polymerization behavior of binuclear iron complexes bearing N,N′-bis(1-(6-(1-(arylimino)ethyl) pyridin-2-yl)ethylidene)benzidines. RSC Adv 2013. [DOI: 10.1039/c3ra42631a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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36
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Lieb D, Friedel FC, Yawer M, Zahl A, Khusniyarov MM, Heinemann FW, Ivanović-Burmazović I. Dinuclear Seven-Coordinate Mn(II) Complexes: Effect of Manganese(II)-Hydroxo Species on Water Exchange and Superoxide Dismutase Activity. Inorg Chem 2012; 52:222-36. [DOI: 10.1021/ic301714d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dominik Lieb
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Felix C. Friedel
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Mirza Yawer
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Achim Zahl
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Marat M. Khusniyarov
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department
of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr.
1, 91058 Erlangen, Germany
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37
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2-[1-(2,6-Dibenzhydryl-4-chlorophenylimino)ethyl]-6-[1-(arylimino)ethyl]pyridyliron(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.02.050] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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2-(R-1H-Benzoimidazol-2-yl)-6-(1-aryliminoethyl)pyridyliron(II) dichlorides: Synthesis, characterization and the ethylene oligomerization behavior. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.09.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Song S, Gao R, Zhang M, Li Y, Wang F, Sun WH. 2-β-Benzothiazolyl-6-iminopyridylmetal dichlorides and the catalytic behavior towards ethylene oligomerization and polymerization. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Long Z, Li Z, Ma N, Wu B. A Novel Al-Bridged Trinuclear Iron(II) Bis(imino)pyridyl Complex with Catalytic Ethylene Polymerization Behavior. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Imino- and Amido-Pyridinate d-Block Metal Complexes in Polymerization/Oligomerization Catalysis. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-90-481-3815-9_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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42
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Bahuleyan BK, Lee KJ, Lee SH, Liu Y, Zhou W, Kim I. Trinuclear Fe(II)/Ni(II) complexes as catalysts for ethylene polymerizations. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.10.084] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Affiliation(s)
- Massimiliano Delferro
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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