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Parte LG, Fernández S, Sandonís E, Guerra J, López E. Transition-Metal-Catalyzed Transformations for the Synthesis of Marine Drugs. Mar Drugs 2024; 22:253. [PMID: 38921564 PMCID: PMC11204618 DOI: 10.3390/md22060253] [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: 04/22/2024] [Revised: 05/23/2024] [Accepted: 05/25/2024] [Indexed: 06/27/2024] Open
Abstract
Transition metal catalysis has contributed to the discovery of novel methodologies and the preparation of natural products, as well as new chances to increase the chemical space in drug discovery programs. In the case of marine drugs, this strategy has been used to achieve selective, sustainable and efficient transformations, which cannot be obtained otherwise. In this perspective, we aim to showcase how a variety of transition metals have provided fruitful couplings in a wide variety of marine drug-like scaffolds over the past few years, by accelerating the production of these valuable molecules.
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Affiliation(s)
- Lucía G. Parte
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Sergio Fernández
- Department of Chemistry, School of Physical and Chemical Sciences, Queen Mary University of London (QMUL), Mile End Road, London E1 4NS, UK;
| | - Eva Sandonís
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Javier Guerra
- Department of Organic Chemistry, Science Faculty, University of Valladolid (UVa), Paseo de Belén 7, 47011 Valladolid, Spain; (L.G.P.); (E.S.)
| | - Enol López
- Department of Organic Chemistry, ITAP, School of Engineering (EII), University of Valladolid (UVa), Dr Mergelina, 47002 Valladolid, Spain
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2
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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]
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3
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Li J, Guo L, Huo H, Wang Y, Gao Y, Li F, Li C. Preparation of nickel catalysts bearing Schiff base macrocycles and their performance in ethylene oligomerization. TRANSIT METAL CHEM 2023. [DOI: 10.1007/s11243-023-00527-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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2-(Arylimino)benzylidene-8-arylimino-5,6,7-trihydroquinoline Cobalt(II) Dichloride Polymerization Catalysts for Polyethylenes with Narrow Polydispersity. Catalysts 2022. [DOI: 10.3390/catal12101119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of 2-(arylimino)benzylidene-8-arylimino-5,6,7-trihydroquinoline cobalt(II) chlorides (Co1–Co6) containing a fused ring and a more inert phenyl group as the substituent at the imino-C atom has been synthesized using a one-pot synthesis method and fully characterized by FT-IR and elemental analysis. The molecular structures of Co2 and Co5 have been confirmed by X-ray diffraction as having a distorted square pyramidal geometry around a cobalt core with a tridentate N,N,N-chelating ligand and two chlorides. On activation with either methylaluminoxane (MAO) or modified methylaluminoxane (MMAO), Co1–Co6 exhibited high activities for ethylene polymerization. The least sterically hindered Co2 showed a maximum activity of 16.51 × 106 g (PE) mol−1 (Co) h−1 at a moderate temperature 50 °C. Additionally, ortho-fluoride Co6 was able to maintain a high activity not only at 70 °C but also after 60 min at 50 °C, highlighting its excellent thermal-stability and long catalytic lifetime. The resultant polyethylene showed clearly narrower molecular weight distribution (PDI: 1.3–3.1) than those produced by structurally related cobalt counterparts, indicating the positive influence of benzhydryl substitution on the catalysis. Moreover, the molecular weight (1.7–386.6 kg mol−1) of vinyl- or n-propyl-terminated polyethylene can be finely regulated by controlling polymerization parameters.
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5
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Mahmood Q, Li X, Qin L, Wang L, Sun WH. Structural evolution of iminopyridine support for nickel/palladium catalysts in ethylene (oligo)polymerization. Dalton Trans 2022; 51:14375-14407. [PMID: 36047748 DOI: 10.1039/d2dt02251f] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interest in the late transition metal catalyst based design of new architectures of polyethylene (PE) has continuously been increasing over the last few years. The structure of these catalysts is predominantly important in controlling the morphological and architectural properties of the resulting polyethylene. Particularly, iminopyridine is a versatile bidentate support for Ni and Pd catalysts in ethylene (oligo)polymerization providing a wide variety of products ranging from volatile oligomers to ultra-high molecular weight polyethylene. Extensive structural modifications have been induced in the iminopyridine ligand through steric and electronic substitution, tuning the catalyst behavior in terms of activity and properties of the resulting polymer. Carbocyclic-fused iminopyridine and N-oxide iminopyridine are the new state of the art iminopyridine ligand designs. In this review, we aim to summarize all the developments in mononuclear iminopyridine-nickel and -palladium catalysts for ethylene (oligo)polymerization since the first report published in 1999 to present, focusing on the correlation among the pre-catalyst, co-catalyst type, thermal stability and polymer/oligomer structure. For comparison, the structural variations in the binuclear iminopyridine-nickel catalysts are also described. The detailed comparison of the structural variations in these catalysts with respect to their polymerization performance will give deep understanding in the development of new efficient catalyst designs.
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Affiliation(s)
- Qaiser Mahmood
- Guangdong Laboratory of Chemistry and Chemical Engineering, Shantou 515031, China.
| | - Xiaoxu Li
- Guangdong Laboratory of Chemistry and Chemical Engineering, Shantou 515031, China.
| | - Lidong Qin
- Guangdong Laboratory of Chemistry and Chemical Engineering, Shantou 515031, China.
| | - Luyao Wang
- Guangdong Laboratory of Chemistry and Chemical Engineering, Shantou 515031, China.
| | - Wen-Hua Sun
- Guangdong Laboratory of Chemistry and Chemical Engineering, Shantou 515031, China. .,Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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LLDPE-like Polymers Accessible via Ethylene Homopolymerization Using Nitro-Appended 2-(Arylimino)pyridine-nickel Catalysts. Catalysts 2022. [DOI: 10.3390/catal12090961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Four examples of para-nitro substituted 2-(arylimino)pyridine-nickel(II) bromide complexes of general formula, [2-{(2,6-R-4-NO2C6H2)N=CMe}C5H4N]NiBr2, but differentiable by the steric/electronic properties displayed by the ortho-groups [R = i-Pr (Ni1), Et (Ni2), CHPh2 (Ni3), CH(4-FPh)2 (Ni4)], have been prepared in good yield. For comparative purposes, the meta-nitro complex, [2-{(2,6-i-Pr2-3-NO2-4-(4-FPh)2C6H)N=CMe}C5H4N]NiBr2 (Ni5), has also been synthesized. The molecular structures of mononuclear Ni3·xH2O (x = 2, 3) and bromide-bridged dinuclear Ni4 and Ni5 are disclosed. Upon activation with either ethylaluminum dichloride (EtAlCl2) or modified methylaluminoxane (MMAO), all precatalysts displayed good catalytic performance at operating temperatures between 30 °C and 60 °C with higher activities generally seen using EtAlCl2 [up to 4.7 × 106 g PE (mol of Ni)−1 h−1]: Ni2 ~ Ni5 > Ni1 ~ Ni4 > Ni3. In terms of the resultant polyethylene (PE), Ni4/EtAlCl2 formed the highest molecular weight of the series (Mw up to 1.4 × 105 g mol−1) with dispersities (Mw/Mn) ranging from narrow to broad (Mw/Mn range: 2.2–24.4). Moreover, the melting temperatures (Tm) of the polymers generated via EtAlCl2 activation fell in a narrow range, 117.8–126.0 °C, which resembles that seen for industrial-grade linear-low density polyethylene (LLDPE). Indeed, their 13C NMR spectra revealed significant amounts of uniformly distributed long-chain branches (LCBs), while internal vinylene groups constituted the major type of chain unsaturation [vinylene:vinyl = 5.3:1 (EtAlCl2) and 9.9:1 (MMAO)].
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Liu T, Liu M, Ma Y, Solan GA, Liang T, Sun WH. Cobalt catalysts bearing ortho‐(4,4'‐dichlorobenzhydryl) substituents and their use in generating narrowly dispersed polyethylene of high linearity. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tian Liu
- Institute of Chemistry Chinese Academy of Sciences Key Laboratory for Engineering Plastics CHINA
| | - Ming Liu
- Institute of Chemistry Chinese Academy of Sciences Key Laboratory for Engineering Plastics CHINA
| | - Yanping Ma
- Institute of Chemistry Chinese Academy of Sciences Key Laboratory for Engineering Plastics CHINA
| | | | - Tongling Liang
- Institute of Chemistry Chinese Academy of Sciences Key Laboratory for Engineering Plastics CHINA
| | - Wen-Hua Sun
- The Chinese Academy of Sciences Institute of Chemistry No.2, BeiyijieZhongguancun 100190 Beijing CHINA
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8
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Zheng Y, Jiang S, Liu M, Yu Z, Ma Y, Solan GA, Zhang W, Liang T, Sun WH. High molecular weight PE elastomers through 4,4-difluorobenzhydryl substitution in symmetrical α-diimino-nickel ethylene polymerization catalysts. RSC Adv 2022; 12:24037-24049. [PMID: 36200024 PMCID: PMC9435601 DOI: 10.1039/d2ra04321a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022] Open
Abstract
The following family of N,N-diaryl-2,3-dimethyl-1,4-diazabutadienes, ArN[double bond, length as m-dash]C(Me)C(Me)[double bond, length as m-dash]NAr (Ar = 2,6-Me2-4-{CH(4-FC6H4)2}C6H2L1, 2-Me-6-Et-4-{CH(4-FC6H4)2}C6H2L2, 2,4-{CH(4-FC6H4)2}2-6-MeC6H2L3, 2,4-{CH(4-FC6H4)2}2-6-EtC6H2L4, 2,4-{CH(4-FC6H4)2}2-6-iPrC6H2L5), each incorporating para-substituted 4,4-difluorobenzhydryl groups but differing in the ortho-pairing, have been synthesized and used as precursors to their respective nickel(ii) bromide complexes, Ni1-Ni5. Compound characterization has been achieved through a combination of FT-IR, multinuclear NMR spectroscopy (1H, 13C, 19F) and elemental analysis. In addition, L1, Ni1 and Ni5 have been structurally characterized with Ni1 and Ni5 revealing similarly distorted tetrahedral geometries about nickel but with distinct differences in the steric protection offered by the ortho-substituents. All nickel complexes, under suitable activation, showed high activity for ethylene polymerization with a predilection towards forming branched high molecular weight polyethylene with narrow dispersity. Notably the most sterically bulky Ni5, under activation with either EtAlCl2, Et2AlCl or EASC, was exceptionally active (0.9-1.0 × 107 g of PE per (mol of Ni) per h) at an operating temperature of 40 °C. Furthermore, the polyethylene generated displayed molecular weights close to one million g mol-1 (M w range: 829-922 kg mol-1) with high branching densities (86-102/1000 carbons) and a selectivity for short chain branches (% Me = 94.3% (EtAlCl2), 87.2% (Et2AlCl), 87.7% (EASC)). Further analysis of the mechanical properties of the polymers produced at 40 °C and 50 °C using Ni5 highlighted the key role played by crystallinity (X c) and molecular weight (M w) on tensile strength (σ b) and elongation at break (ε b). In addition, stress-strain recovery tests reveal these high molecular weight polymers to exhibit characteristics of thermoplastic elastomers (TPEs).
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Affiliation(s)
- Yuting Zheng
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine Changchun 130117 China
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Shu Jiang
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine Changchun 130117 China
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Ming Liu
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Zhixin Yu
- School of Pharmaceutical Sciences, Changchun University of Chinese Medicine Changchun 130117 China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Chemistry, University of Leicester University Road Leicester LE1 7RH UK
| | - Gregory A Solan
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Chemistry, University of Leicester University Road Leicester LE1 7RH UK
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science and Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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9
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Zubkevich SV, Tuskaev VA, Gagieva SC, Bulychev BM. Catalytic oligomerization and polymerization of ethylene with complexes of iron triad metals: influence of metal nature and new perspectives. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Ngcobo M, Nose H, Jayamani A, Ojwach SO. Structural and ethylene oligomerization studies of chelating (imino)phenol Fe( ii), Co( ii) and Ni( ii) complexes: an experimental and theoretical approach. NEW J CHEM 2022. [DOI: 10.1039/d1nj06065a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Experimental and theoretical data indicate that the stability and metal charge of N^O Fe(ii), Co(ii) and Ni(ii) complexes control their catalytic activities in ethylene oligomerization reactions.
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Affiliation(s)
- Makhosonke Ngcobo
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
| | - Holliness Nose
- School of Chemistry and Material Science, Technical University of Kenya, Haile Selasie Avenue, P.O. Box 52428-00200, Nairobi, Kenya
| | - Arumugam Jayamani
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
| | - Stephen O. Ojwach
- School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, South Africa
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11
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Zhang Q, Lin W, Liu T, Ye Z, Liang T, Sun WH. Fluorinated Sterically Bulky Mononuclear and Binuclear 2-Iminopyridylnickel Halides for Ethylene Polymerization: Effects of Ligand Frameworks and Remote Substituents. ACS OMEGA 2021; 6:30157-30172. [PMID: 34778687 PMCID: PMC8582273 DOI: 10.1021/acsomega.1c05418] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/19/2021] [Indexed: 06/02/2023]
Abstract
In the present work, four new mono(imino)pyridine ligands, 2-((2,4-bis(bis(4-R-phenyl)methyl)-6-fluorophenylimino)methyl)pyridine (R = H, L1; R = OCH3, L2; R = F, L3) and 2-((2-(bis(4-fluorophenyl)methyl)-4-((3-(bis(4-fluorophenyl)methyl)-4-amine-5-fluoro-phenyl)(phenyl)methyl)-6-fluorophenylimino)methyl)pyridine (L4), have been designed in good yields. Additionally, three novel benzhydryl-bridged bis(imino)pyridine ligands, 2-(2-(bis(4-R-phenyl)methyl)-6-fluoro-phenylimino)pyridine (R = H, L5; R = OCH3, L6; R = F, L7), were also prepared for comparison. All these organic compounds have been characterized by FT-IR analysis, 1H/13C NMR spectroscopy, and elemental analysis. The treatment of L1-L7 with nickel halides afforded the corresponding monometallic (Ni1-Ni4) and bimetallic (Ni5-Ni7) nickel complexes in moderate to good overall yields. Upon activation with methylaluminoxane (MAO), Ni4 Cl showed the highest activity up to 8.3 × 106 g of polyethylene (PE) (mol of Ni)-1 h-1 among Ni1-Ni7 for ethylene polymerization. In all cases, unsaturated PEs with low molecular weights (0.7-13.3 kg mol-1) were produced effectively. The introduction of remote para-substituents into the benzhydryl groups showed a beneficial effect on catalytic activity with the overall activities following the order of Ni-F > Ni-OCH3 > Ni-H. In addition, these para-substituents were also found to affect not only the catalytic performance of catalysts but also the branching content of the PE product. Generally, the resultant PE waxes were moderately branched and contained both terminal vinyls (-CH=CH2) and internal vinylenes (-CH=CH-) while with different ratios of vinyls to vinylenes. Notably, the polymers produced using para-methoxy-substituted Ni2/MAO and Ni6/MAO possessed the least branching content and uniquely high vinyl contributions.
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Affiliation(s)
- Qiuyue 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
| | - Wenhua Lin
- Key
Laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Tian Liu
- 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
| | - Zhibin Ye
- Department
of Chemical and Materials Engineering, Concordia
University, Montreal, Quebec H3G1M8, Canada
| | - 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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12
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Zuo Z, Han M, Ma Y, Solan GA, Hu X, Liang T, Sun W. Fluorinated bis(arylimino)‐6,7‐dihydro‐5
H
‐quinoline‐cobalt polymerization catalysts: Electronic versus steric modulation in the formation of vinyl‐terminated linear PE waxes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zheng Zuo
- 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 and International School University of Chinese Academy of Sciences Beijing China
| | - Mingyang Han
- 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 and International School 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 A. 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
| | - Xinquan Hu
- Department of Chemistry University of Leicester Leicester UK
- College of Chemical Engineering Zhejiang University of Technology Hangzhou China
| | - 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 and International School 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
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13
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Applications of imino-pyridine Ni(II) complexes as catalysts in the transfer hydrogenation of ketones. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Xu L, Li J, Lin W, Ma Y, Hu X, Flisak Z, Sun WH. Ethylene oligomerization with 2-hydroxymethyl-5,6,7-trihydroquinolinyl-8-ylideneamine-Ni(II) chlorides. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121720] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. Nature of Heterobinuclear Ni(I) Complexes Formed upon the Activation of the α-Diimine Complex LNi IIBr 2 with AlMe 3 and MMAO. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Igor E. Soshnikov
- Boreskov Institute of Catalysis, 630090 Novosibirsk, Russian Federation
| | | | | | - Artem A. Antonov
- Boreskov Institute of Catalysis, 630090 Novosibirsk, Russian Federation
| | - Wen-Hua Sun
- State Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Evgenii P. Talsi
- Boreskov Institute of Catalysis, 630090 Novosibirsk, Russian Federation
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16
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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]
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17
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Moroz IB, Florian P, Viger‐Gravel J, Gordon CP, Lesage A, Copéret C. Silica‐Grafted Tris(neopentyl)aluminum: A Monomeric Aluminum Solid Co‐catalyst for Efficient Nickel‐Catalyzed Ethene Dimerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ilia B. Moroz
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Pierre Florian
- CEMHTI CNRS UPR3079 Université d'Orléans 1D Avenue de la Recherche-Scientifique 45071 Orléans Cedex 2 France
| | - Jasmine Viger‐Gravel
- Centre de RMN à Très Hauts Champs Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Christopher P. Gordon
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1) 69100 Villeurbanne France
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1–5 8093 Zürich Switzerland
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18
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Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. Activation of an α-Diimine Ni(II) Precatalyst with AlMe3 and AliBu3: Catalytic and NMR and EPR Spectroscopy Studies. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00395] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Igor E. Soshnikov
- Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University Pirogova 1, 630090 Novosibirsk, Russian Federation
| | - Nina V. Semikolenova
- Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, 630090 Novosibirsk, Russian Federation
| | - Konstantin P. Bryliakov
- Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University Pirogova 1, 630090 Novosibirsk, Russian Federation
| | - Artem A. Antonov
- Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University Pirogova 1, 630090 Novosibirsk, Russian Federation
| | - Wen-Hua Sun
- State Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Evgenii P. Talsi
- Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, 630090 Novosibirsk, Russian Federation
- Novosibirsk State University Pirogova 1, 630090 Novosibirsk, Russian Federation
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19
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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.
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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
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20
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Moroz IB, Florian P, Viger-Gravel J, Gordon CP, Lesage A, Copéret C. Silica-Grafted Tris(neopentyl)aluminum: A Monomeric Aluminum Solid Co-catalyst for Efficient Nickel-Catalyzed Ethene Dimerization. Angew Chem Int Ed Engl 2020; 59:16167-16172. [PMID: 32452148 DOI: 10.1002/anie.202006285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/21/2020] [Indexed: 11/11/2022]
Abstract
A silica-supported monomeric alkylaluminum co-catalyst was prepared via surface organometallic chemistry by contacting tris(neopentyl)aluminum and partially dehydroxylated silica. This system, fully characterized by solid-state 27 Al NMR spectroscopy augmented by computational studies, efficiently activates (n Bu3 P)2 NiCl2 towards dimerization of ethene, demonstrating comparable activity to previously reported dimeric diethylaluminum chloride supported on silica. Three types of aluminum surface species have been identified: monografted tetracoordinated Al species as well as two types of bisgrafted Al species-tetra- and pentacoordinated. Of them, only the monografted Al species is proposed to be able to activate the (n Bu3 P)2 NiCl2 complex and generate the active cationic species.
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Affiliation(s)
- Ilia B Moroz
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Pierre Florian
- CEMHTI CNRS UPR3079, Université d'Orléans, 1D Avenue de la Recherche-Scientifique, 45071, Orléans Cedex 2, France
| | - Jasmine Viger-Gravel
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100, Villeurbanne, France
| | - Christopher P Gordon
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100, Villeurbanne, France
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, 8093, Zürich, Switzerland
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21
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Suo H, Chen Q, Zhang W, Ma Y, Sun W. Methylene‐bridged bis(8‐arylimino)‐5,6,7‐trihydro‐quinolylinickel precatalysts for ethylene polymerization. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hongyi Suo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing China
| | - Qiang Chen
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing China
- School of Materials Science and EngineeringBeijing Institute of Fashion Technology Beijing China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of ChemistryChinese Academy of Sciences Beijing China
- Key Laboratory of High‐Performance Synthetic Rubber and its Composite MaterialsChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun China
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22
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Yuan S, Fan Z, Zhang Q, Flisak Z, Ma Y, Sun Y, Sun W. Enhancing performance of α‐diiminonickel precatalyst for ethylene polymerization by substitution with the 2,4‐bis(4,4'‐dimethoxybenzhydryl)‐6‐methylphenyl group. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shi‐Fang Yuan
- Institute of Applied Chemistry and The School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Zhe Fan
- Institute of Applied Chemistry and The School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Zygmunt Flisak
- Faculty of ChemistryUniversity of Opole Oleska 48 45‐052 Opole Poland
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Yang Sun
- 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
- Key Laboratory of High‐Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
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23
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24
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25
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Zubkevich SV, Tuskaev VA, Gagieva SC, Pavlov AA, Khrustalev VN, Zarubin DN, Kurmaev DA, Kolosov NA, Bulychev BM. Molecular structure, magnetic properties and catalytic activity in selective ethylene dimerization of nickel (II) complexes with bis(3,5-dimethylpyrazol-1-yl)methane. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127692] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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26
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Deshmukh SS, Gaikwad SR, Gonnade RG, Pandole SP, Chikkali SH. Pd-Iminocarboxylate Complexes and Their Behavior in Ethylene Polymerization. Chem Asian J 2020; 15:398-405. [PMID: 31863706 DOI: 10.1002/asia.201901501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/19/2019] [Indexed: 11/07/2022]
Abstract
Designing co-catalyst-free late transition metal complexes for ethylene polymerization is a challenging task at the interface of organometallic and polymer chemistry. Herein, a set of new, co-catalyst-free, single-component catalytic systems for ethylene polymerization have been unraveled. Treatment of anthranilic acid with various aldehydes produced four iminocarboxylate ligands (L1-L4) in very good to excellent yield (75-92 %). The existence of 2-((2-methoxybenzylidene)amino) benzoic acid (L1) has been unambiguously demonstrated using NMR spectroscopy, MS and single-crystal X-ray diffraction. A neutral Pd-iminocarboxylate complex [{N O}PdMe(L1)] (N O=κ2 -N,O-ArCHNC6 H4 CO2 with Ar=2-MeOC6 H4 ) C1 was prepared by treating stoichiometric amount of L1.Na with palladium precursor. The identity of C1 was confirmed by 1-2D NMR spectroscopy and single-crystal X-ray diffraction studies. Along the same lines, palladium complexes C2-C4 were prepared from ligands L2-L4 respectively. In-situ high-pressure NMR investigations revealed that these Pd complexes are amenable to ethylene insertion and undergo facile β-H elimination to produce propylene. These palladium complexes were then evaluated in ethylene polymerization reaction and various reaction parameters were screened. When C1-C4 were exposed to ethylene pressures of 10-50 bar, formation of low-molecular-weight polyethylene was observed.
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Affiliation(s)
- Satej S Deshmukh
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Shahaji R Gaikwad
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Rajesh G Gonnade
- Center for Material Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Satish P Pandole
- Central NMR facility, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Samir H Chikkali
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110001, India
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27
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Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. The nature of nickel species formed upon the activation of α-diimine nickel(II) pre-catalyst with alkylaluminum sesquichlorides. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Yang F, Wang X, Ma Z, Wang B, Pan L, Li Y. Copolymerization of Propylene with Higher α-Olefins by a Pyridylamidohafnium Catalyst: An Effective Approach to Polypropylene-Based Elastomer. Polymers (Basel) 2020; 12:E89. [PMID: 31947835 PMCID: PMC7023639 DOI: 10.3390/polym12010089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/30/2019] [Accepted: 01/01/2020] [Indexed: 11/17/2022] Open
Abstract
In this contribution, we explored the copolymerization of propylene with higher α-olefins, including 1-octene (C8) 1-dodecene (C12), 1-hexadecene (C16) and 1-eicosene (C20), by using a dimethyl pyridylamidohafnium catalyst. A series of copolymers with varied comonomer incorporation, high molecular weight and narrow molecular weight distribution were obtained at mild conditions. The effects of the insertion of the comonomers on the microstructure, thermal and final mechanical properties were systemically studied by 13C NMR, wide-angle X-ray scattering, DSC and tensile test. Excellent mechanical performances were achieved by tuning the incorporation and chain length of the higher α-olefins. When the comonomer content reached above 12 mol.%, polypropylene-based elastomers were obtained with high ductility. A combination of excellent elastic recovery and flexibility was achieved for the P/C16 copolymers with about 20 mol.% monomer incorporation. The monomer incorporation and side chain length played a crucial role in determining the mechanical property of the outstanding polypropylene-based elastomers.
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Affiliation(s)
- Fei Yang
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; (F.Y.); (Z.M.); (L.P.); (Y.L.)
| | - Xiaoyan Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhe Ma
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; (F.Y.); (Z.M.); (L.P.); (Y.L.)
| | - Bin Wang
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; (F.Y.); (Z.M.); (L.P.); (Y.L.)
| | - Li Pan
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; (F.Y.); (Z.M.); (L.P.); (Y.L.)
| | - Yuesheng Li
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; (F.Y.); (Z.M.); (L.P.); (Y.L.)
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29
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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.
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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
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30
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Yusran Y, Guan X, Li H, Fang Q, Qiu S. Postsynthetic functionalization of covalent organic frameworks. Natl Sci Rev 2020; 7:170-190. [PMID: 34692030 PMCID: PMC8288834 DOI: 10.1093/nsr/nwz122] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/06/2019] [Accepted: 08/12/2019] [Indexed: 01/03/2023] Open
Abstract
Covalent organic frameworks (COFs) have been at the forefront of porous-material research in recent years. With predictable structural compositions and controllable functionalities, the structures and properties of COFs could be controlled to achieve targeted materials. On the other hand, the predesigned structure of COFs allows fruitful postsynthetic modifications to introduce new properties and functions. In this review, the postsynthetic functionalizations of COFs are discussed and their impacts towards structural qualities and performances are comparatively elaborated on. The functionalization involves the formation of specific interactions (covalent or coordination/ionic bonds) and chemical reactions (oxidation/reduction reaction) with pendant groups, skeleton and reactive linkages of COFs. The chemical stability and performance of COFs including catalytic activity, storage, sorption and opto-electronic properties might be enhanced by specific postsynthetic functionalization. The generality of these strategies in terms of chemical reactions and the range of suitable COFs places them as a pivotal role for the development of COF-based smart materials.
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Affiliation(s)
- Yusran Yusran
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Departement of Chemistry, Jilin University, Changchun 130012, China
| | - Xinyu Guan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Departement of Chemistry, Jilin University, Changchun 130012, China
| | - Hui Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Departement of Chemistry, Jilin University, Changchun 130012, China
| | - Qianrong Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Departement of Chemistry, Jilin University, Changchun 130012, China
| | - Shilun Qiu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Departement of Chemistry, Jilin University, Changchun 130012, China
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31
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Li J, Zhang Q, Hu X, Ma Y, Solan GA, Sun Y, Sun W. 2‐Acetyloxymethyl‐substituted 5,6,7‐trihydroquinolinyl‐8‐ylideneamine‐Ni(II) chlorides and their application in ethylene dimerization/trimerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiaxin Li
- College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - 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
| | - Xinquan Hu
- College of Chemical EngineeringZhejiang University of Technology Hangzhou 310014 China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular SciencesInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 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
| | - Yang Sun
- 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
- Key Laboratory of High‐Performance Synthetic Rubber and its Composite MaterialsChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
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32
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Jalali A, Nekoomanehs‐Haghighi M, Dehghani S, Bahri‐Laleh N. Effect of metal type on the metallocene‐catalyzed oligomerization of 1‐hexene and 1‐octene to produce polyα‐olefin‐based synthetic lubricants. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5338] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Aazam Jalali
- Polymerization Engineering DepartmentIran Polymer and Petrochemical Institute (IPPI) Tehran Iran
| | | | - Sevda Dehghani
- Polymerization Engineering DepartmentIran Polymer and Petrochemical Institute (IPPI) Tehran Iran
| | - Naeimeh Bahri‐Laleh
- Polymerization Engineering DepartmentIran Polymer and Petrochemical Institute (IPPI) Tehran Iran
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33
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Wang Y, Vignesh A, Qu M, Wang Z, Sun Y, Sun WH. Access to polyethylene elastomers via ethylene homo-polymerization using N,N′-nickel(II) catalysts appended with electron withdrawing difluorobenzhydryl group. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Wang J, Xie J, Wang L, Jiang Y, Zhang N. The effect of phenolic compounds on salicylaldimine nickel-catalyzed ethylene oligomerization. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A salen nickel complex has been prepared in good yield with ethylenediamine, salicylaldehyde, and NiCl2·6H2O as raw materials. The structure of the complex was characterized by FTIR, 1H NMR, UV, and ESI-MS. Upon activation with methylaluminoxane (MAO), the precatalyst showed high activity for ethylene oligomerization. To reduce the simultaneous production of insoluble polymers during the nickel-catalyzed ethylene oligomerization, a series of phenolic compounds were introduced as modifiers for the production of linear α-olefins. The researched result showed that the phenolic compounds have a significant impact on the selectivity of oligomers and the concentration of polymers. With the increase of phenolic compounds, the content of polymers decreased and the distribution of oligomers gradually shifted toward lighter olefins. The sterically hindered 4-tert-butyphenol proved to be an especially efficient polymer-retarding modifier among the studied phenolic compounds in this work. Furthermore, the retarding effect of phenolic compounds toward insoluble polymers may be mainly related to their interaction with MAO, giving rise to larger MAO aggregates.
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Affiliation(s)
- Jun Wang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang Province, China
| | - Junyi Xie
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang Province, China
| | - Libo Wang
- Daqing Chemical Research Center of Petrochemical Research Institute, Daqing, 163714, China
| | - Yan Jiang
- Daqing Chemical Research Center of Petrochemical Research Institute, Daqing, 163714, China
| | - Na Zhang
- Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang Province, China
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35
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Zada M, Guo L, Zhang R, Zhang W, Ma Y, Solan GA, Sun Y, Sun W. Moderately branched ultra‐high molecular weight polyethylene by using
N,N′
‐nickel catalysts adorned with sterically hindered dibenzocycloheptyl groups. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4749] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Muhammad Zada
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- CAS Research/Education Center for Excellence in Molecular SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Liwei Guo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science and EngineeringBeijing Institute of Fashion Technology Beijing 100029 China
| | - Randi Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Wenjuan Zhang
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science and EngineeringBeijing Institute of Fashion Technology Beijing 100029 China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Chemistry, University of LeicesterUniversity Road Leicester LE1 7RH UK
| | - Yang Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Wen‐Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular ScienceInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- CAS Research/Education Center for Excellence in Molecular SciencesUniversity of Chinese Academy of Sciences Beijing 100049 China
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36
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Greis K, Canty AJ, O’Hair RAJ. Gas-Phase Reactions of the Group 10 Organometallic Cations, [(phen)M(CH 3)] + with Acetone: Only Platinum Promotes a Catalytic Cycle via the Enolate [(phen)Pt(OC(CH 2)CH 3)] +. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2018-1355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Electrospray ionisation of the ligated group 10 metal complexes [(phen)M(O2CCH3)2] (M = Ni, Pd, Pt) generates the cations [(phen)M(O2CCH3)]+, whose gas-phase chemistry was studied using multistage mass spectrometry experiments in an ion trap mass spectrometer with the combination of collision-induced dissociation (CID) and ion-molecule reactions (IMR). A new catalytic cycle has been discovered. In step 1, decarboxylation of [(phen)M(O2CCH3)]+ under CID conditions generates the organometallic cations [(phen)M(CH3)]+, which react with acetone to generate the [(phen)M(CH3)(OC(CH3)2)]+ adducts in competition with formation of the coordinated enolate for M = Pt (step 2). For M = Ni and Pd, the adducts regenerate [(phen)M(CH3)]+ upon CID. In the case of M = Pt, loss of methane is favored over loss of acetone and results in the formation of the enolate complex, [(phen)Pt(OC(CH2)CH3)]+. Upon further CID, both methane and CO loss can be observed resulting in the formation of the ketenyl and ethyl complexes [(phen)Pt(OCCH)]+ and [(phen)Pt(CH2CH3)]+ (step 3), respectively. In step 4, CID of [(phen)Pt(CH2CH3)]+ results in a beta-hydride elimination reaction to yield the hydride complex, [(phen)Pt(H)]+, which reacts with acetic acid to regenerate the acetate complex [(phen)Pt(O2CCH3)]+ and H2 in step 5. Thus, the catalytic cycle is formally closed, which corresponds to the decomposition of acetone and acetic acid into methane, CO, CO2, ethene and H2. All except the last step of the catalytic cycle are modelled using DFT calculations with optimizations of structures at the M06/SDD 6-31G(d) level of theory.
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Affiliation(s)
- Kim Greis
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, Victoria 3010 , Australia
- Institut Für Chemie, Humboldt-Universität zu Berlin , Brook-Taylor Straße 2 , 12489 Berlin , Germany
| | - Allan J. Canty
- School of Natural Sciences – Chemistry, University of Tasmania , Private Bag 75 , Hobart, Tasmania 7001 , Australia
| | - Richard A. J. O’Hair
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, Victoria 3010 , Australia
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Soshnikov IE, Semikolenova NV, Bryliakov KP, Antonov AA, Sun WH, Talsi EP. EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on α-diimine Ni(II) complex activated by MMAO. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.11.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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He F, Wang D, Jiang B, Zhang Z, Cheng Z, Fu Z, Zhang Q, Fan Z. Introducing electron-donating substituents on ligand backbone of α-diimine nickel complex and the effects on catalyst thermal stability in ethylene polymerization. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.08.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Remote dibenzocycloheptyl-substitution of an iminotrihydroquinoline-nickel catalyst as a route to narrowly dispersed branched polyethylene waxes with alkene functionality. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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He F, Wang D, Wu A, Jiang B, Zhang Z, Cheng Z, Fu Z, Zhang Q, Fan Z. Highly resilient polyethylene elastomers prepared using α-diimine nickel catalyst with highly conjugated backbone. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4566] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Feng He
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Dan Wang
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Anyang Wu
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Baiyu Jiang
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Zhen Zhang
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Zhenmei Cheng
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Zhisheng Fu
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Qisheng Zhang
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
| | - Zhiqiang Fan
- Department of Polymer Science and Engineering; MOE Key Laboratory of Macromolecular Synthesis and Functionalization; 38 Zheda Road Hangzhou 310027 China
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41
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Mahmood Q, Sun WH. N, N-chelated nickel catalysts for highly branched polyolefin elastomers: a survey. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180367. [PMID: 30109091 PMCID: PMC6083730 DOI: 10.1098/rsos.180367] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
The physical properties and end applications of polyolefin materials are defined by their chain architectures and topologies. These properties can, in part, be controlled by a judicious choice of the steric and electronic properties of the catalyst and, in particular, the ligand framework. One major achievement in this field is the discovery of thermoplastic polyolefin elastomers that combine the processing and recyclable characteristics of thermoplastics with the flexibility and ductility of elastomers. These polymers are highly sought after as alternative materials to thermoset elastomers. In this perspective, works in the literature related to the development of nickel catalysts as well as their implementations for the synthesis of polyolefin elastomers are summarized in detail. Throughout the perspective, attention has been focused on developing the relationship between catalyst structure and performance, on strategies for the synthesis of polyolefin elastomer using nickel catalysts, on properties of the resultant polyolefin, such as degree of branching and crystallinity, as well as on their effects on mechanical properties. The future perspective regarding the most recent developments in single-step production of polyethylene elastomers will also be presented.
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Affiliation(s)
- Qaiser Mahmood
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
- CAS Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of 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, People's Republic of China
- CAS Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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42
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Mechria A, Msaddek M. Synthesis, characterization, and crystal structure of novel bulky phenyl-bridged α-diimine binucleating ligands. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ali Mechria
- Laboratoire de Chimie Hétérocyclique, Produits naturels et Réactivité: L.C.H.P.N.R; Faculté des sciences de Monastir; Monastir Tunisia
| | - Moncef Msaddek
- Laboratoire de Chimie Hétérocyclique, Produits naturels et Réactivité: L.C.H.P.N.R; Faculté des sciences de Monastir; Monastir Tunisia
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43
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Olefin oligomerization via new and efficient Brönsted acidic ionic liquid catalyst systems. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63071-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Structural analysis of imino- and amino-pyridine ligands for Ni(II):Precatalysts for the polymerization of ethylene. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Wang Z, Solan GA, Zhang W, Sun WH. Carbocyclic-fused N,N,N-pincer ligands as ring-strain adjustable supports for iron and cobalt catalysts in ethylene oligo-/polymerization. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.016] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Mogheiseh M, Zohuri GH, Khoshsefat M. Synthesis of LDPE Using Pyridineimine-Based Nickel (II) Bromide Complexes: Effect of Catalyst Bulkiness on Thermal, Structural, and Morphological Properties. MACROMOL REACT ENG 2018. [DOI: 10.1002/mren.201800006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohsen Mogheiseh
- Department of Chemistry; Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775-1436 Iran
| | - Gholam Hossein Zohuri
- Department of Chemistry; Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775-1436 Iran
- Environmental Chemistry Research Centre; Department of Chemistry; Faculty of Science; Ferdowsi University of Mashhad; Mashhad PO Box 91775-1436 Iran
| | - Mostafa Khoshsefat
- Department of Catalyst; Iran Polymer and Petrochemical Institute (IPPI); Tehran PO Box 14965/115 Iran
- Department of Chemical and Materials Engineering; University of Alberta; Edmonton Alberta T6G 1H9 Canada
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47
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Dechal A, Khoshsefat M, Ahmadjo S, Mortazavi SMM, Zohuri GH, Abedini H. Mono‐ and binuclear nickel catalysts for 1‐hexene polymerization. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4355] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Abbas Dechal
- Department of Catalysis Iran Polymer and Petrochemical Institute (IPPI) PO Box 14965/115 Tehran Iran
| | - Mostafa Khoshsefat
- Department of Catalysis Iran Polymer and Petrochemical Institute (IPPI) PO Box 14965/115 Tehran Iran
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Saeid Ahmadjo
- Department of Catalysis Iran Polymer and Petrochemical Institute (IPPI) PO Box 14965/115 Tehran Iran
| | | | - Gholam Hossein Zohuri
- Department of Chemistry, Faculty of Science Ferdowsi University of Mashhad PO Box 91775 Mashhad Iran
| | - Hossein Abedini
- Polymerization Engineering Department Iran Polymer and Petrochemical Institute (IPPI) PO Box 14965/115 Tehran Iran
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48
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Mahmood Q, Guo J, Zhang W, Ma Y, Liang T, Sun WH. Concurrently Improving the Thermal Stability and Activity of Ferrous Precatalysts for the Production of Saturated/Unsaturated Polyethylene. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00909] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Qaiser Mahmood
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- CAS Research/Education Center for Excellence in Molecular Sciences and International School, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jingjing Guo
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People’s Republic of China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People’s Republic of China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of 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, People’s Republic of China
- CAS Research/Education Center for Excellence in Molecular Sciences and International School, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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49
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Mahmood Q, Zeng Y, Wang X, Sun Y, Sun WH. Advancing polyethylene properties by incorporating NO 2 moiety in 1,2-bis(arylimino)acenaphthylnickel precatalysts: synthesis, characterization and ethylene polymerization. Dalton Trans 2018; 46:6934-6947. [PMID: 28504797 DOI: 10.1039/c7dt01295k] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new family of nickel halides (bromides Ni1-Ni5 and chlorides Ni6-Ni10) ligated by 1-(2,6-dibenzhydryl-4-nitrophenylimino)-2-(arylimino)acenaphthylene (Aryl = 2,6-Me2C6H3L1, 2,6-Et2C6H3L2, 2,6-iPr2C6H3L3, 2,4,6-Me3C6H2L4, and 2,6-Et2-4-MeC6H2L5) have been prepared and well characterized, and the scope of their catalytic properties toward the polymerization of ethylene has been investigated. Upon activation with either Et2AlCl or EASC, the nickel bromide complexes displayed better activities than their nickel chloride counterparts and produced higher-molecular-weight polyethylene in the range of 106 g mol-1 with a very narrow range of molecular weight distributions. In comparison with reference precatalysts with non-nitro substituents (CH3, F or Cl), the title complexes experienced a modest negative effect on catalytic activity upon replacement with a NO2 moiety (activity up to 4.61 × 106 g PE (mol Ni)-1 h-1 at 20 °C). Conversely, the NO2 moiety exerted a positive effect to increase the molecular weight of the resulting polyethylene, and Ni4/Et2AlCl gave polyethylene with a maximum molecular weight of as high as 32.8 × 105 g mol-1, which is not only the highest among the title complexes but also higher than any literature values reported with 1,2-diiminoacenaphthylnickel halides.
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Affiliation(s)
- Qaiser Mahmood
- 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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50
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Zeng Y, Mahmood Q, Zhang Q, Liang T, Sun WH. Vinyl homo/copolymerization of norbornene and ethylene using sterically enhanced 1,2-bis(arylimino)acenaphthene-palladium precatalysts. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28970] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yanning Zeng
- College of Materials Science and Engineering; Guilin University of Technology; Guilin 541004 China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Qaiser Mahmood
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences; 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
| | - Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences; 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
| | - 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
- 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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