1
|
Medina JT, Tran QH, Hughes RP, Wang X, Brookhart M, Daugulis O. Ethylene Polymerizations Catalyzed by Fluorinated "Sandwich" Diimine-Nickel and Palladium Complexes. J Am Chem Soc 2024; 146:15143-15154. [PMID: 38781282 DOI: 10.1021/jacs.4c01322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Nickel and palladium complexes bearing "sandwich" diimine ligands with perfluorinated aryl caps have been synthesized, characterized, and explored in ethylene polymerization reactions. The X-ray crystallographic analysis of the precatalysts 16 and 6b shows differences from their nonfluorinated analogues 17 and 19, with the perfluorinated aryl caps centered precisely over the nickel and palladium centers, which results in higher buried volumes of the metal centers relative to the nonfluorinated analogues. The sandwich diimine-palladium complexes 5a and 5b containing perfluorinated aryl caps polymerize ethylene in a controlled fashion with activities that are substantially increased compared with their nonfluorinated analogues. Migratory insertion rates in relevant methyl ethylene complexes agree with the activities exhibited in bulk polymerization experiments. DFT studies suggest that facility of ethylene rotation from its preferred orientation perpendicular to the Pd-alkyl bond into a parallel in-plane conformation contributes to the higher polymerization activity for 5b relative to 18a. For these palladium systems, polymer molecular weights can be controlled via hydrogen addition (hydrogenolysis), which is unusual for late-transition-metal-catalyzed olefin polymerizations with no catalyst deactivation occurring. Sandwich diimine-nickel complexes 6a and 6b with perfluorinated aryl caps show ethylene polymerization activities that are about half of those of classical tetraisopropyl-substituted catalyst 2 but again are more active than the analogous nonfluorinated sandwich complexes. Ethylene polymerizations exhibit living behavior, and branched ultrahigh-molecular-weight polyethylenes (UHMWPEs) with very low-molecular-weight distributions (less than 1.1) are obtained. The activated nickel catalysts are stable in the absence of monomer and show good long-term stability at 25 °C.
Collapse
Affiliation(s)
- Joseph T Medina
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Quan H Tran
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Russell P Hughes
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Xiqu Wang
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Maurice Brookhart
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| |
Collapse
|
2
|
Wu R, Lenz TM, Alfayez FAS, Zhao R, Rupper P, Perret E, Lehner S, Jovic M, Gaan S, Rieger B, Heuberger M. Ambient Catalytic Spinning of Polyethylene Nanofibers. Angew Chem Int Ed Engl 2024; 63:e202315326. [PMID: 38226704 DOI: 10.1002/anie.202315326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
A novel single-atom Ni(II) catalyst (Ni-OH) is covalently immobilized onto the nano-channels of mesoporous Santa Barbara Amorphous (SBA)-15 particles and isotropic Anodized Aluminum Oxide (AAO) membrane for confined-space ethylene extrusion polymerization. The presence of surface-tethered Ni complexes (Ni@SBA-15 and Ni@AAO) is confirmed by the inductively coupled plasma-optical emission spectrometry (ICP-OES) and X-ray photoelectron spectroscopy (XPS). In the catalytic spinning process, the produced PE materials exhibit very homogeneous fibrous morphology at nanoscale (diameter: ~50 nm). The synthesized PE nanofibers extrude in a highly oriented manner from the nano-reactors at ambient temperature. Remarkably high Mw (1.62×106 g mol-1 ), melting point (124 °C), and crystallinity (41.8 %) are observed among PE samples thanks to the confined-space polymerization. The chain-walking behavior of surface tethered Ni catalysts is greatly limited by the confinement inside the nano-channels, leading to the formation of very low-branched PE materials (13.6/1000 C). Due to fixed supported catalytic topology and room temperature, the filaments are expected to be free of entanglement. This work signifies an important step towards the realization of a continuous mild catalytic-spinning (CATSPIN) process, where the polymer is directly synthesized into fiber shape at negligible chain branching and elegantly avoiding common limitations like thermal degradation or molecular entanglement.
Collapse
Affiliation(s)
- Ruikai Wu
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
- Department of Materials, ETH, Zurich, 8092, Zurich, Switzerland
| | - Tim M Lenz
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Fayez Abdullah S Alfayez
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Ruohan Zhao
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Patrick Rupper
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Edith Perret
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Sandro Lehner
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Milijana Jovic
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Sabyasachi Gaan
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Manfred Heuberger
- Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
- Department of Materials, ETH, Zurich, 8092, Zurich, Switzerland
| |
Collapse
|
3
|
Rajapaksha R, Samanta P, Quadrelli EA, Canivet J. Heterogenization of molecular catalysts within porous solids: the case of Ni-catalyzed ethylene oligomerization from zeolites to metal-organic frameworks. Chem Soc Rev 2023; 52:8059-8076. [PMID: 37902965 DOI: 10.1039/d3cs00188a] [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
The last decade has seen a tremendous expansion of the field of heterogenized molecular catalysis, especially with the growing interest in metal-organic frameworks and related porous hybrid solids. With successful achievements in the transfer from molecular homogeneous catalysis to heterogenized processes come the necessary discussions on methodologies used and a critical assessment on the advantages of heterogenizing molecular catalysis. Here we use the example of nickel-catalyzed ethylene oligomerization, a reaction of both fundamental and applied interest, to review heterogenization methodologies of well-defined molecular catalysts within porous solids while addressing the biases in the comparison between original molecular systems and heterogenized counterparts.
Collapse
Affiliation(s)
- Rémy Rajapaksha
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, 2 Av. Albert Einstein, 69626 Villeurbanne, France.
| | - Partha Samanta
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, 2 Av. Albert Einstein, 69626 Villeurbanne, France.
| | - Elsje Alessandra Quadrelli
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, 2 Av. Albert Einstein, 69626 Villeurbanne, France.
| | - Jérôme Canivet
- Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON - UMR 5256, 2 Av. Albert Einstein, 69626 Villeurbanne, France.
| |
Collapse
|
4
|
Roy R, Kar A, Paul S, Mohapatra S, Ghosh S. 3D Cyclophane for the Selective Conversion of Epoxide to Cyclic Carbonate. J Org Chem 2023; 88:14388-14395. [PMID: 37816074 DOI: 10.1021/acs.joc.3c01286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
A novel three-dimensional (3D) cyclophane molecule 1 was synthesized and fully characterized. Cyclophane 1, which can form a N heterocyclic carbene, was tested for conversion of certain epoxides (3-6) [scheme 2] to cyclic carbonates in the presence of CO2. Propylene oxide (3) was found to have more reactivity with cyclophane 1 compared to the other epoxides. The theoretical calculations based on N,N'-disubstituted imidazol(in)ium-2-carboxylates derived from N,N' disubstituted imidazole as the source of N-heterocyclic carbene show lower activation energy in the case of the reactivity of epoxides 5 and 6 as compared to 3 and 4. However, cyclophane 1, which possesses a 3D geometry, can form the open intermediate with CO2 and propylene oxide more feasibly than the other three epoxides, which have larger sizes as compared to propylene oxide. Hence, the reaction of propylene oxide, CO2, and cyclophane 1 can follow the mechanistic path 1, whereas the epoxides 4-6 can follow a different mechanistic path 2. Cyclophane 1 is the first example of a cyclophane to act as an organocatalyst for the conversion of CO2 and epoxide to cyclic carbonate via the N heterocyclic carbene pathway.
Collapse
Affiliation(s)
- Rahul Roy
- Department of Chemistry, Alipurduar University, Alipurduar 736122, West Bengal, India
| | - Archita Kar
- Department of Chemistry, Gauhati University, Guwahati 781014, India
| | - Satadal Paul
- Department of Chemistry, Bangabasi Morning College, Kolkata 700009, India
| | - Sudip Mohapatra
- Department of Chemistry, Kurseong College, Kurseong 734203, West Bengal, India
| | - Sushobhan Ghosh
- Department of Chemistry, Alipurduar University, Alipurduar 736122, West Bengal, India
| |
Collapse
|
5
|
Wang C, Wang D, Xu T, Zhang Q, Fu Z. Effect of N-Aryl Para-Benzhydryl Substituent on the Thermal Stability of α-Diimine Nickel Catalyst. Macromol Rapid Commun 2023; 44:e2300221. [PMID: 37293788 DOI: 10.1002/marc.202300221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/18/2023] [Indexed: 06/10/2023]
Abstract
The thermal stability of α-diimine nickel catalysts has always been the focus of research. The introduction of large groups in the backbone or N-aryl ortho-position is a relatively mature solution. However, the question of whether the N-aryl bond rotation is a factor affecting the thermal stability of nickel catalysts is still open. In this work, the effects of N-aryl para-benzhydryl substitutes on catalyst thermal stability are investigated, and the results of ethylene polymerization and the factors affecting thermal stability (steric effect, electronic effect, five-membered coordination ring stability, N-aryl bond rotation, etc.) are systematically analyzed. It is believed that the introduction of large steric hindrance groups at the N-aryl para-position hinders the rotation of the N-aryl bond. This obstacle effect is beneficial to improving catalyst thermal stability, and the obstacle capacity is weakened with the increase of ortho-substituent size.
Collapse
Affiliation(s)
- Cheng Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
| | - Dan Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
| | - Tao Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
- Hangzhou Xinglu Technologies Co. Ltd., Hangzhou, 310012, P. R. China
| | - Qisheng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
| | - Zhisheng Fu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, P. R. China
- ZJU-Hangzhou Xinglu High-end Polyolefin Research & Development Center, Hangzhou, 310058, P. R. China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Hangzhou, 310058, P. R. China
| |
Collapse
|
6
|
Pawlak M, Drzeżdżon J, Jacewicz D. The greener side of polymers in the light of d-block metal complexes as precatalysts. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
7
|
Wu R, Klingler Wu W, Stieglitz L, Gaan S, Rieger B, Heuberger M. Recent advances on α-diimine Ni and Pd complexes for catalyzed ethylene (Co)polymerization: A comprehensive review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
8
|
Wu R, Stieglitz L, Lehner S, Jovic M, Rentsch D, Neels A, Gaan S, Rieger B, Heuberger M. Fluorine and Hydroxyl Containing Unsymmetrical a-Diimine Ni (II) Dichlorides with Improved Catalytic Performance for Ethylene Polymerization. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
9
|
Wang C, Wang D, Fu Z, Qin Y, Zhang Q, Fan Z. Combining 1,2-diketopyracene with bulky benzhydryl-substituted anilines to obtain highly active α-diimine nickel catalysts at elevated temperature. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
10
|
One-pot synthesis of symmetrical and unsymmetrical α-diimine Nickel complexes in comparison with two-pot synthesis method for ethylene polymerization. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03049-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Yan Z, Xu G, Wang H, Dai S. Synthesis of thermoplastic polyethylene elastomers and ethylene–methyl acrylate copolymers using methylene-bridged binuclear bulky dibenzhydryl α-diimine Ni(II) and Pd(II) catalysts. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111105] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
12
|
Doerr AM, Curry MR, Chapleski RC, Burroughs JM, Lander EK, Roy S, Long BK. Redox Potential as a Predictor of Polyethylene Branching Using Nickel α-Diimine Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alicia M. Doerr
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Matthew R. Curry
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Robert C. Chapleski
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Justin M. Burroughs
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Elizabeth K. Lander
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Sharani Roy
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Brian K. Long
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| |
Collapse
|
13
|
Liu Y, Harth E. Distorted Sandwich α‐Diimine Pd
II
Catalyst: Linear Polyethylene and Synthesis of Ethylene/Acrylate Elastomers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107039] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yu‐Sheng Liu
- Center of Excellence in Polymer Chemistry Department of Chemistry University of Houston 3585 Cullen Blvd Houston TX 77204 USA
| | - Eva Harth
- Center of Excellence in Polymer Chemistry Department of Chemistry University of Houston 3585 Cullen Blvd Houston TX 77204 USA
| |
Collapse
|
14
|
|
15
|
Harth E, Liu YS. Distorted Sandwich a-Diimine Pd(II) Catalyst: Linear Polyethylene and Synthesis of Ethylene/Acrylate Elastomers. Angew Chem Int Ed Engl 2021; 60:24107-24115. [PMID: 34403566 DOI: 10.1002/anie.202107039] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/29/2021] [Indexed: 11/09/2022]
Abstract
The introduction of m-xylyl substituents to α-diimine Pd(II) catalyst promotes living ethylene polymerization at room temperature and low pressure to yield high molecular weight polyethylene (PE) with low branching (<17/1000C). m-Xylyl groups provide a highly effective blockage to the axial sites of the catalytic center and form a distorted sandwich geometry. The shielding prevents chain-transfer and easy accessibility of polar monomers, leading to a living polymerization. Conducting a light irradiation as part of the one-step metal-organic insertion light initiated radical (MILRad) process leads to diblock copolymers of ethylene and acrylates. Incorporation of different acrylate block sequences can significantly modify the mechanical and chemical properties of block copolymers which can be modulated to be a hard plastic, elastomer, or semi-amorphous polymer.
Collapse
Affiliation(s)
- Eva Harth
- University of Houston, Chemistry, 406 STL Building, United States, 77004, Houston, UNITED STATES
| | - Yu-Sheng Liu
- University of Houston System, Chemistry, UNITED STATES
| |
Collapse
|
16
|
Schiebel E, Voccia M, Falivene L, Göttker‐Schnetmann I, Caporaso L, Mecking S. Neutral Unsymmetrical Coordinated Cyclophane Polymerization Catalysts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Eva Schiebel
- Chair of Chemical Materials Science Department of Chemistry University of Konstanz Universitätsstraße 10 78457 Konstanz Germany
| | - Maria Voccia
- Dipartimento di Chimica e Biologia Università di Salerno Via Papa Paolo Giovanni II 84084 Fisciano Italy
| | - Laura Falivene
- Dipartimento di Chimica e Biologia Università di Salerno Via Papa Paolo Giovanni II 84084 Fisciano Italy
| | - Inigo Göttker‐Schnetmann
- Chair of Chemical Materials Science Department of Chemistry University of Konstanz Universitätsstraße 10 78457 Konstanz Germany
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia Università di Salerno Via Papa Paolo Giovanni II 84084 Fisciano Italy
| | - Stefan Mecking
- Chair of Chemical Materials Science Department of Chemistry University of Konstanz Universitätsstraße 10 78457 Konstanz Germany
| |
Collapse
|
17
|
Schiebel E, Voccia M, Falivene L, Göttker-Schnetmann I, Caporaso L, Mecking S. Neutral Unsymmetrical Coordinated Cyclophane Polymerization Catalysts. Angew Chem Int Ed Engl 2021; 60:18472-18477. [PMID: 34038606 PMCID: PMC8456896 DOI: 10.1002/anie.202105401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Indexed: 12/04/2022]
Abstract
Cyclophane structures can control steric pressure in the otherwise open spaces of square‐planar d8‐metal catalysts. This elegant concept was so far limited to symmetrical coordinated metals. We report how a cyclophane motif can be generated in ligands that chelate via two different donors. An ancillary second imine in the versatile κ2‐N,O‐salicylaldiminato catalyst type enables ring closure via olefin metathesis and selective double bond hydrogenation to yield a 30‐membered ring efficiently. Experimental and theoretical analyses show the ancillary imine is directed away from the active site and inert for catalysis. In ethylene polymerization the cyclophane catalyst is more active and temperature stable vs. an open structure reference, notably also in polar solvents. Increased molecular weights and decreased degrees of branching can be traced to an increased energy of sterically demanding transition states by the encircling cyclophane while chain propagation remains highly efficient.
Collapse
Affiliation(s)
- Eva Schiebel
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Maria Voccia
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, 84084, Fisciano, Italy
| | - Laura Falivene
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, 84084, Fisciano, Italy
| | - Inigo Göttker-Schnetmann
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, 84084, Fisciano, Italy
| | - Stefan Mecking
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78457, Konstanz, Germany
| |
Collapse
|
18
|
Liao D, Behzadi S, Hong C, Zou C, Qasim M, Chen M. Influence of thiopheneyl‐based twisted backbone on the properties of α‐diimine nickel catalysts in ethylene polymerization. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6406] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daohong Liao
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Shabnam Behzadi
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Changwen Hong
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Chen Zou
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Muhammad Qasim
- Department of Polymer Science and Engineering University of Science and Technology of China Hefei China
| | - Min Chen
- Institutes of Physical Science and Information Technology Anhui University Hefei China
| |
Collapse
|
19
|
Yu F, Li P, Xu M, Xu G, Na Y, Zhang S, Wang F, Tan C. Iminopyridyl ligands bearing polyethylene glycol unit for nickel catalyzed ethylene polymerization. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
20
|
Synthesis of a Ni Complex Chelated by a [2.2]Paracyclophane-Functionalized Diimine Ligand and Its Catalytic Activity for Olefin Oligomerization. Molecules 2021; 26:molecules26092719. [PMID: 34063154 PMCID: PMC8124533 DOI: 10.3390/molecules26092719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 04/29/2021] [Accepted: 05/03/2021] [Indexed: 11/29/2022] Open
Abstract
A diimine ligand having two [2.2]paracyclophanyl substituents at the N atoms (L1) was prepared from the reaction of amino[2.2]paracyclophane with acenaphtenequinone. The ligand reacts with NiBr2(dme) (dme: 1,2-dimethoxyethane) to form the dibromonickel complex with (R,R) and (S,S) configuration, NiBr2(L1). The structure of the complex was confirmed by X-ray crystallography. NiBr2(L1) catalyzes oligomerization of ethylene in the presence of methylaluminoxane (MAO) co-catalyst at 10–50 °C to form a mixture of 1- and 2-butenes after 3 h. The reactions for 6 h and 8 h at 25 °C causes further increase of 2-butene formed via isomerization of 1-butene and formation of hexenes. Reaction of 1-hexene catalyzed by NiBr2(L1)–MAO produces 2-hexene via isomerization and C12 and C18 hydrocarbons via oligomerization. Consumption of 1-hexene of the reaction obeys first-order kinetics. The kinetic parameters were obtained to be ΔG‡ = 93.6 kJ mol−1, ΔH‡ = 63.0 kJ mol−1, and ΔS‡ = −112 J mol−1deg−1. NiBr2(L1) catalyzes co-dimerization of ethylene and 1-hexene to form C8 hydrocarbons with higher rate and selectivity than the tetramerization of ethylene.
Collapse
|
21
|
Wang YY, Wang CQ, Hu XQ, Xia Y, Chi Y, Zhang YX, Jian ZB. Benzosuberyl Substituents as a “Sandwich-like” Function in Olefin Polymerization Catalysis. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2562-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Schiebel E, Voccia M, Falivene L, Caporaso L, Mecking S. The Impact of Charge in a Ni(II) Polymerization Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Eva Schiebel
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | - Maria Voccia
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, I-84084 Fisciano, Italy
| | - Laura Falivene
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, I-84084 Fisciano, Italy
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, I-84084 Fisciano, Italy
| | - Stefan Mecking
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| |
Collapse
|
23
|
Liu T, Ma Y, Solan G, Liang T, Sun W. Exploring
ortho
‐(4,4′‐dimethoxybenzhydryl) substitution in iron ethylene polymerization catalysts: Co‐catalyst effects, thermal stability, and polymer molecular weight variations. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tian Liu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- CAS Research/Education Center for Excellence in Molecular Sciences University of Chinese Academy of Sciences Beijing China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Gregory Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- Department of Chemistry University of Leicester Leicester UK
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
- CAS Research/Education Center for Excellence in Molecular Sciences University of Chinese Academy of Sciences Beijing China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou China
| |
Collapse
|
24
|
Duan X, Zhang X, Liu T, Bai S, Tong H, Chao J, Sun W. Structural diversity in substituted aminosilyl‐aminopyridinate metal (Zr or Fe) complexes: Synthesis, structures, and ethylene polymerization. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xin‐E Duan
- School of Chemistry and Chemical Engineering Shanxi University Taiyuan 030006 China
- Institute of Applied Chemistry Shanxi University Taiyuan 030006 China
| | - Xiao‐Xia Zhang
- School of Chemistry and Chemical Engineering Shanxi University Taiyuan 030006 China
| | - Tian Liu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Sheng‐Di Bai
- Institute of Applied Chemistry Shanxi University Taiyuan 030006 China
| | - Hongbo Tong
- Institute of Applied Chemistry Shanxi University Taiyuan 030006 China
| | - Jian‐Bin Chao
- Institute of Applied Chemistry Shanxi University Taiyuan 030006 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
| |
Collapse
|
25
|
Wang X, Dong B, Yang Q, Liu H, Hu Y, Zhang X. Boosting the Thermal Stability of α-Diimine Palladium Complexes in Norbornene Polymerization from Construction of Intraligand Hydrogen Bonding and Simultaneous Increasing Axial/Equatorial Bulkiness. Inorg Chem 2021; 60:2347-2361. [PMID: 33501824 DOI: 10.1021/acs.inorgchem.0c03185] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Increasing the thermostability of α-diimine late-transition-metal complexes and therefore rendering them more active at higher temperatures is of great importance, yet challenging for the olefin polymerization field. In the present research, a new family of α-diimine palladium complexes that can promote norbornene polymerization at high temperatures (up to 140 °C) is disclosed. Because of the conformational restriction caused by increasing the axial and equatorial bulkiness as well as the presence of intraligand H···F hydrogen bonds, N-aryl rotations can be efficiently restricted, therefore circumventing the deactivation of the active species at high temperatures. At 80-140 °C, these complexes can efficiently catalyze norbornene homopolymerizations, giving high catalytic activities up to 5.65 × 107 g of PNB per mole Ni per hour and polymers with high molecular weights up to 37.2 × 104 g/mol, which are highly superior to catalytic systems mediated by CF3-free complexes. Moreover, these complexes could also afford medium catalytic activities in the presence of polar 5-norbornene-2-carboxylic acid methyl ester (NB-COOCH3).
Collapse
Affiliation(s)
- Xiaohua Wang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, Jilin China.,School of Applied Chemistry and Engineering, University of Science and Technology of China Hefei 230026, Anhui, China
| | - Bo Dong
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, Jilin China
| | - Qi Yang
- Key Laboratory of Rubber-Plastics of the Ministry of Education/Shandong Province (QUST), School of Polymer Science & Engineering, Qingdao University of Science & Technology, 53-Zhengzhou Road, Qingdao 266042, Shandong, P. R. China
| | - Heng Liu
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, Jilin China.,Key Laboratory of Rubber-Plastics of the Ministry of Education/Shandong Province (QUST), School of Polymer Science & Engineering, Qingdao University of Science & Technology, 53-Zhengzhou Road, Qingdao 266042, Shandong, P. R. China
| | - Yanming Hu
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Xuequan Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, Jilin China.,School of Applied Chemistry and Engineering, University of Science and Technology of China Hefei 230026, Anhui, China.,Key Laboratory of Rubber-Plastics of the Ministry of Education/Shandong Province (QUST), School of Polymer Science & Engineering, Qingdao University of Science & Technology, 53-Zhengzhou Road, Qingdao 266042, Shandong, P. R. China
| |
Collapse
|
26
|
Jones GR, Basbug Alhan HE, Karas LJ, Wu JI, Harth E. Switching the Reactivity of Palladium Diimines with “Ancillary” Ligand to Select between Olefin Polymerization, Branching Regulation, or Olefin Isomerization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Glen R. Jones
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Hatice E. Basbug Alhan
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Lucas J. Karas
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Judy I. Wu
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Eva Harth
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| |
Collapse
|
27
|
|
28
|
Sun Y, Chi M, Bashir MS, Wang Y, Qasim M. Influence of intramolecular π–π and H-bonding interactions on pyrazolylimine nickel-catalyzed ethylene polymerization and co-polymerization. NEW J CHEM 2021. [DOI: 10.1039/d1nj02437j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyrazolylimine-based nickel catalysts bearing intramolecular π–π and H-bonding interactions show high activity, thermal stability, and Mn of polyethylene.
Collapse
Affiliation(s)
- Yao Sun
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- China
| | - Mingjun Chi
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- China
| | - Muhammad Sohail Bashir
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- China
| | - Yusong Wang
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- China
| | - Muhammad Qasim
- Department of Polymer Science and Engineering
- University of Science and Technology of China
- Hefei
- China
| |
Collapse
|
29
|
Ma X, Zhang Y, Jian Z. Tunable branching and living character in ethylene polymerization using “polyethylene glycol sandwich” α-diimine nickel catalysts. Polym Chem 2021. [DOI: 10.1039/d0py01689f] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The key effects of polyethylene glycol units as a unique secondary coordination sphere in α-diimine Ni(ii)-mediated ethylene polymerization are comprehensively disclosed.
Collapse
Affiliation(s)
- Xin Ma
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Yixin Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Zhongbao Jian
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| |
Collapse
|
30
|
Masson GHC, Cruz TR, Gois PDS, Martins DM, Lima-Neto BS, Oliveira GS, Machado AEH, Bernardo-Gusmão K, Goi BE, Carvalho-Jr VP. Ruthenium–nickel heterobimetallic complex as a bifunctional catalyst for ROMP of norbornene and ethylene polymerization. NEW J CHEM 2021. [DOI: 10.1039/d1nj01498f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new multifunctional Ru–Ni heterobimetallic catalyst for ROMP and ethylene polymerization.
Collapse
|
31
|
Zheng H, Zhong L, Du C, Du W, Cheung CS, Ruan J, Gao H. Combining hydrogen bonding interactions with steric and electronic modifications for thermally robust α-diimine palladium catalysts toward ethylene (co)polymerization. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01617a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Thermally robust α-diimine palladium catalysts are highly active for ethylene (co)polymerization at high temperatures by steric and electronic modifications in combination with hydrogen bonding interactions.
Collapse
Affiliation(s)
- Handou Zheng
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Liu Zhong
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Cheng Du
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Wenbo Du
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Chi Shing Cheung
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Jingjing Ruan
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| | - Haiyang Gao
- School of Materials Science and Engineering
- PCFM Lab
- GD HPPC Lab
- Sun Yat-sen University
- Guangzhou 510275
| |
Collapse
|
32
|
Bagherabadi M, Zohuri G, Ramezanian N, Kimiaghalam M, Khoshsefat M. Microstructural study on MMA/1‐hexene copolymers made by mononuclear and dinuclear α‐diimine nickel (II) catalysts. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mohadeseh Bagherabadi
- Department of Chemistry, Faculty of Science Ferdowsi University of Mashhad Mashhad Iran
| | - Gholamhossein Zohuri
- Department of Chemistry, Faculty of Science Ferdowsi University of Mashhad Mashhad Iran
| | - Navid Ramezanian
- Department of Chemistry, Faculty of Science Ferdowsi University of Mashhad Mashhad Iran
| | - Mahsa Kimiaghalam
- Department of Chemistry, Faculty of Science Ferdowsi University of Mashhad Mashhad Iran
| | - Mostafa Khoshsefat
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences Beijing China
| |
Collapse
|
33
|
Riu MLY, Transue WJ, Knopf I, Cummins CC. Synthesis of an Anthracene-Based Macrocyclic Diphosphine Ligand. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martin-Louis Y. Riu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Wesley J. Transue
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ioana Knopf
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christopher C. Cummins
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
34
|
Jones GR, Basbug Alhan HE, Karas LJ, Wu JI, Harth E. Switching the Reactivity of Palladium Diimines with “Ancillary” Ligand to Select between Olefin Polymerization, Branching Regulation, or Olefin Isomerization. Angew Chem Int Ed Engl 2020; 60:1635-1640. [DOI: 10.1002/anie.202012400] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Glen R. Jones
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Hatice E. Basbug Alhan
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Lucas J. Karas
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Judy I. Wu
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| | - Eva Harth
- Department of Chemistry, Center of Excellence in Polymer Chemistry University of Houston 3585 Cullen Blvd. Houston Texas 77004 USA
| |
Collapse
|
35
|
Mostafa Khoshsefat, Mogheiseh M, Zohuri GH, Ahmadjo S. Topological and Electronic Properties of Chlorine-Substituents on the α-Diimine Ni-based Catalysts. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420330039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
36
|
Patel K, Chikkali SH, Sivaram S. Ultrahigh molecular weight polyethylene: Catalysis, structure, properties, processing and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101290] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
37
|
A concerted double-layer steric strategy enables an ultra-highly active nickel catalyst to access ultrahigh molecular weight polyethylenes. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
38
|
Naweephattana P, Sawatlon B, Surawatanawong P. Insights into the Regioselectivity of Hydroheteroarylation of Allylbenzene with Pyridine Catalyzed by Ni/AlMe 3 with N-Heterocyclic Carbene: The Concerted Hydrogen Transfer Mechanism. J Org Chem 2020; 85:11340-11349. [PMID: 32786651 DOI: 10.1021/acs.joc.0c01449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The hydroheteroarylation of allylbenzene with pyridine as catalyzed by Ni/AlMe3 and a N-heterocyclic carbene ligand has recently been established. Density functional calculations revealed that the common stepwise pathway, which involves the C-H oxidative addition of pyridine-AlMe3 before the migratory insertion of allylbenzene, is unlikely as the migratory insertion needs to overcome a prohibitively high energy barrier. In contrast, the ligand-to-ligand hydrogen transfer pathway is more favorable in which the hydrogen is transferred directly from the para-position of pyridine-AlMe3 to C2 of allylbenzene. Our distortion-interaction analysis and natural bond orbital analysis indicate that the interaction energy is strongly correlated with the extent of the charge transfer from the alkene (hydrogen acceptor) to the pyridine-AlMe3 (hydrogen donor), which dictates the selectivity of the H-transfer to the C2 position of allylbenzene. Then, the subsequent C-C reductive elimination of the regioselective linear product is facilitated by the steric hindrance of the IPr ligand. Understanding these key factors affecting the product regioselectivity is important to the development of catalysts for hydroheteroarylation of alkenes.
Collapse
Affiliation(s)
- Phiphob Naweephattana
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Boodsarin Sawatlon
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.,Center of Sustainable Energy and Green Materials, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand
| |
Collapse
|
39
|
Copper(II) complexes containing N′-aromatic group substituted N,N′,N-bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amines: Synthesis, structures, polymerization of methyl methacrylate and ring opening polymerization of rac-lactide. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
40
|
Han XW, Daugulis O, Brookhart M. Unsaturated Alcohols as Chain-Transfer Agents in Olefin Polymerization: Synthesis of Aldehyde End-Capped Oligomers and Polymers. J Am Chem Soc 2020; 142:15431-15437. [DOI: 10.1021/jacs.0c06644] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xing-Wang Han
- Center for Polymer Chemistry, Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Olafs Daugulis
- Center for Polymer Chemistry, Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Maurice Brookhart
- Center for Polymer Chemistry, Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| |
Collapse
|
41
|
Olivier-Bourbigou H, Breuil PAR, Magna L, Michel T, Espada Pastor MF, Delcroix D. Nickel Catalyzed Olefin Oligomerization and Dimerization. Chem Rev 2020; 120:7919-7983. [PMID: 32786672 DOI: 10.1021/acs.chemrev.0c00076] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Brought to life more than half a century ago and successfully applied for high-value petrochemical intermediates production, nickel-catalyzed olefin oligomerization is still a very dynamic topic, with many fundamental questions to address and industrial challenges to overcome. The unique and versatile reactivity of nickel enables the oligomerization of ethylene, propylene, and butenes into a wide range of oligomers that are highly sought-after in numerous fields to be controlled. Interestingly, both homogeneous and heterogeneous nickel catalysts have been scrutinized and employed to do this. This rare specificity encouraged us to interlink them in this review so as to open up opportunities for further catalyst development and innovation. An in-depth understanding of the reaction mechanisms in play is essential to being able to fine-tune the selectivity and achieve efficiency in the rational design of novel catalytic systems. This review thus provides a complete overview of the subject, compiling the main fundamental/industrial milestones and remaining challenges facing homogeneous/heterogeneous approaches as well as emerging catalytic concepts, with a focus on the last 10 years.
Collapse
Affiliation(s)
- H Olivier-Bourbigou
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, 69360 Solaize, France
| | - P A R Breuil
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, 69360 Solaize, France
| | - L Magna
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, 69360 Solaize, France
| | - T Michel
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, 69360 Solaize, France
| | | | - D Delcroix
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, 69360 Solaize, France
| |
Collapse
|
42
|
Duan X, Yuan B, Li R, Vignesh A, Bariashir C, Li Z, Bai S, Ma Y, Chao J, Tong H, Sun W. Alkyl substituents triggered an unexpected formation of mono‐and dinuclear zirconium hydrazonate complexes: synthesis, characterization and their catalytic behavior toward ethylene polymerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin‐E Duan
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
- Institute of Applied ChemistryShanxi University Taiyuan 030006 China
| | - Bo Yuan
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
| | - Rui Li
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
| | - Arumugam Vignesh
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Chantsalnyam Bariashir
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Zilong Li
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Sheng‐Di Bai
- Institute of Applied ChemistryShanxi University Taiyuan 030006 China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Jian‐Bin Chao
- Institute of Applied ChemistryShanxi University Taiyuan 030006 China
| | - Hong‐Bo Tong
- Institute of Applied ChemistryShanxi University Taiyuan 030006 China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing 100190 China
| |
Collapse
|
43
|
Joseph MC, Swarts AJ, Mapolie SF. Palladium (II) complexes chelated by 1‐substituted‐4‐pyridyl‐
1H
‐1,2,3‐triazole ligands as catalyst precursors for selective ethylene dimerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mohammed Cassiem Joseph
- DST‐NRF Centre of Excellence in Catalysis (c*change), Department of Chemistry and Polymer ScienceStellenbosch University Private Bag 1, Matieland 7601 Stellenbosch South Africa
| | - Andrew John Swarts
- Catalysis and Synthesis Research Group, Focus Area for Chemical Resource BeneficiationNorth‐West University 11 Hoffman Street Potchefstroom 2520 South Africa
| | - Selwyn Frank Mapolie
- DST‐NRF Centre of Excellence in Catalysis (c*change), Department of Chemistry and Polymer ScienceStellenbosch University Private Bag 1, Matieland 7601 Stellenbosch South Africa
| |
Collapse
|
44
|
Sattler A, Ho S, Paccagnini M, Padilla C. Nickel catalyzed oligomerization of internal olefins: Towards lubricant basestocks and high cetane diesel fuels. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
45
|
Zhong L, Zheng H, Du C, Du W, Liao G, Cheung CS, Gao H. Thermally robust α-diimine nickel and palladium catalysts with constrained space for ethylene (co)polymerizations. J Catal 2020. [DOI: 10.1016/j.jcat.2020.02.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
46
|
Xu M, Yu F, Li P, Xu G, Zhang S, Wang F. Enhancing Chain Initiation Efficiency in the Cationic Allyl-Nickel Catalyzed (Co)Polymerization of Ethylene and Methyl Acrylate. Inorg Chem 2020; 59:4475-4482. [DOI: 10.1021/acs.inorgchem.9b03647] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Mengli Xu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Fan Yu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Pei Li
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Guoyong Xu
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Shaojie Zhang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| | - Fuzhou Wang
- Institutes of Physical Science and Information Technology, School of Computer Science and Technology, Anhui University, Hefei 230601, Anhui, China
| |
Collapse
|
47
|
Li J, Ma Y, Hu X, Flisak Z, Tongling L, Sun WH. 2-( N, N-Diethylaminomethyl)-6,7-trihydroquinolinyl-8-ylideneamine-Ni( ii) chlorides: application in ethylene dimerization and trimerization. NEW J CHEM 2020. [DOI: 10.1039/d0nj04003g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The unusual influence of co-catalysts on the oligomerization of ethylene is observed with the title nickel complexes, indicating major dimerization and major trimerization with the co-catalysts MAO and MMAO, respectively.
Collapse
Affiliation(s)
- Jiaxin Li
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xinquan Hu
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Zygmunt Flisak
- Faculty of Chemistry
- University of Opole
- Opole 45-052
- Poland
| | - Liang Tongling
- 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
| |
Collapse
|
48
|
Jiang Y, Fang WY, Rakesh KP, Qin HL. Copper-catalyzed mild desulfonylation of vinyl sulfonyl molecules. Org Chem Front 2020. [DOI: 10.1039/d0qo00468e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first Cu-catalyzed chemical selective desulfonylation of vinyl sulfonyl molecules to olefins was developed using B2pin2–water as the reductant.
Collapse
Affiliation(s)
- Ying Jiang
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070
- PR China
| | - Wan-Yin Fang
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070
- PR China
| | - K. P. Rakesh
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070
- PR China
| | - Hua-Li Qin
- School of Chemistry
- Chemical Engineering and Life Sciences
- Wuhan University of Technology
- Wuhan 430070
- PR China
| |
Collapse
|
49
|
Kenyon P, Falivene L, Caporaso L, Mecking S. Ancillary Ligands Impact Branching Microstructure in Late-Transition-Metal Polymerization Catalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Philip Kenyon
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | - Laura Falivene
- Physical Sciences and Engineering Division, Kaust Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, I-84084 Fisciano, Italy
| | - Stefan Mecking
- Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| |
Collapse
|
50
|
Takeuchi D. Olefin Polymerization and Copolymerization Catalyzed by Dinuclear Catalysts Having Macrocyclic Ligands. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.1136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daisuke Takeuchi
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University
| |
Collapse
|