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Zhao Y, Xu S, Yu Y, Liu H, Wang F, Na L, Yang Q, Zhang C, Zhang X. Preparation and Characterization of Soft-Hard Block Copolymer of 3,4-IP- b- s-1,2-PBD Using a Robust Iron-Based Catalyst System. Polymers (Basel) 2024; 16:1172. [PMID: 38675091 PMCID: PMC11053549 DOI: 10.3390/polym16081172] [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: 03/21/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
A series of well-defined diblock copolymers, namely, 3,4-polyisoprene-block-syndiotactic-1,2-polybutadiene (3,4-PI-b-s-1,2-PBD), with a soft-hard block sequence were synthesized via an in situ sequential polymerization process using a robust iron-based catalytic system Fe(acac)3/(isocyanoimino) triptenylphosphorane (IITP)/AliBu3. This catalyst exhibits vigorous activity and temperature tolerance, achieving a polymerization activity of 5.41 × 106 g mol(Fe)-1 h-1 at 70 °C with a [IP]/[Fe] ratio of 15,000. Moreover, the quasi-living polymerization characteristics of the catalyst were verified through kinetic experiments. The first-stage polymerization of isoprene (IP) is performed at 30 °C to give a soft 3,4-PI block, and then a quantitative amount of 1,3-butadiene was added in situ to the quasi-living polymerization system to produce a second hard s-1,2-PBD. The s-1,2-PBD segments in block copolymers display a rodlike morphology contrasting with the spherulitic morphology characteristic of s-1,2-PBD homopolymers. The precise tunability of the length of the soft and hard chain segments of these novel elastic materials with the feed ratio of IP and BD, endowing them with outstanding mechanical properties and excellent dynamic mechanical properties, which are expected to be promising high-performance rubber materials.
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Affiliation(s)
- Yingnan Zhao
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Shiliang Xu
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Yao Yu
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Heng Liu
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Feng Wang
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Lihua Na
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Qi Yang
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Chunyu Zhang
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
| | - Xuequan Zhang
- Key Laboratory of Advanced Rubber Material, Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China; (Y.Z.); (S.X.); (Y.Y.); (H.L.); (L.N.); (Q.Y.); (X.Z.)
- Shandong Provincial College Laboratory of Rubber Material and Engineering, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
- Key Lab of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Lab of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
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Hao X, Liu JK, Zhuo W, Zheng J, Hao XQ, Gong JF, Jiang H, Song MP. Synthesis, Characterization, and Catalytic Behaviors in Isoprene Polymerization of Pyridine-Oxazoline-Ligated Cobalt Complexes. Polymers (Basel) 2024; 16:578. [PMID: 38475262 DOI: 10.3390/polym16050578] [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: 01/01/2024] [Revised: 02/03/2024] [Accepted: 02/07/2024] [Indexed: 03/14/2024] Open
Abstract
A family of pyridine-oxazoline-ligated cobalt complexes L2CoCl23a-h were synthesized and characterized. Determined via single-crystal X-ray diffraction, complexes 3a and 3d, ligated by two ligands, displayed a distorted tetrahedral coordination of a cobalt center. The X-ray structure indicated the pyridine-oxazoline ligands acted as unusual mono-dentate ligands by coordinating only to Noxazoline. Upon activation with AlEt2Cl (diethylaluminum chloride), these cobalt complexes all exhibited high catalytic activity (up to 2.5 × 106 g·molCo-1·h-1), affording cis-1,4-co-3,4-polyisoprene with molecular weights of 4.4-176 kg mol-1 and a narrow Ð of 1.79-3.42, suggesting a single-site nature of the active sites. The structure of cobalt catalysts and reaction parameters, especially co-catalysts and the reaction temperature, all have significant influence on the polymerization activity but not on the microstructure of polyisoprene.
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Affiliation(s)
- Xiuge Hao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jin-Kui Liu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Weize Zhuo
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jiajing Zheng
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jun-Fang Gong
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Hui Jiang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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Sinitsa DK, Pylova EK, Mironova OA, Bashirov DA, Ryadun AA, Sukhikh TS, Konchenko SN. Lanthanide complexes with a new luminescent iminophosphonamide ligand bearing phenylbenzothiazole substituents. Dalton Trans 2024; 53:2181-2192. [PMID: 38192261 DOI: 10.1039/d3dt03511e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
A new iminophosphonamine Ph2P(HNPbt)(NPbt) (1, HL) bearing chromophore 2-(phen-2'-yl)-1,3-benzothiazole (Pbt) substituents was synthesized and introduced into lanthanide complexes. It was found that salt metathesis reactions between KL (2) generated in situ and LnCl3 lead to the formation of tris-iminophosphonamide complexes [LnL2]L (Ln = Y (3), Sm (4), Gd (5), Dy (6)), regardless of the 2/LnCl3 ratio. Compounds 3-6 consist of a cationic fragment [LnL2]+, where the lanthanide atom is surrounded by two rigidly κ4-coordinated ligands, and an L- anion residing in the outer coordination sphere. Iminophosphonamine 1 shows a rare excitation wavelength-dependent two-band luminescence in the solid state. For compounds containing the deprotonated form, namely potassium salt KL and complexes of Gd and Dy, a single-band luminescence with the color changing from turquoise to orange was observed. The Sm complex reveals a set of a few narrow well-resolved bands corresponding to the f-f transitions against the background of the outer-sphere ligand's emission.
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Affiliation(s)
- Dmitry K Sinitsa
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
| | - Ekaterina K Pylova
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
- Department of Natural Sciences, National Research University-Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute Charles Gerhardt Montpellier, National School of Chemistry Montpellier, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Olga A Mironova
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
| | - Denis A Bashirov
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
| | - Alexey A Ryadun
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
| | - Taisiya S Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
| | - Sergey N Konchenko
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia.
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Wang Y, Yan J. Progress in Rare-earth Metal Complexes with Different Ligands in Olefin Polymerization. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a23010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Yttrium and Lithium Complexes with Diamidophosphane Ligand Bearing 2,1,3-Benzothiazolyl Substituent: Polydentate Complexation and Reversible NH–PH Tautomery. INORGANICS 2022. [DOI: 10.3390/inorganics10120263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Deprotonation of a bis(amino)phosphane H2L = PhP(HNBtd)2 bearing a heterocyclic Btd = 2,1,3-benzothiadiazol-4-yl substituents at nitrogen atoms by silylamides LiNTms2 and Y(NTms2)3 (Tms = trimethylsilylamide) results in lithium and yttrium complexes with the deprotonated HL– and L2– forms as κ2-N and κ4-N chelating ligands. A binuclear complex [LiHL]2 was crystallized from Et2O, and was shown to reversibly dissociate in thf (tetrahydrofuran) with the NH(soln)–PH(crystal) tautomeric shift; the compound [Li2L] was spectroscopically characterized. Yttrium readily forms stable bis-ligand complexes [YL2]– and [YL(HL)]. In the latter, the H atom in HL resides on phosphorus; the coordination sphere remains accessible to another ligands, and it was crystallized as [{YL(HL)}2(µ-dioxane)] species (YN8O coordination). In the former complex, the coordination sphere was saturated (YN8) by closer bound ligands; it was crystallized as a salt with [Li(thf)4]+. The monoligand complex could not be cleanly obtained in a 1:1 reaction of H2L and Y(NTms2)3, and was only crystallographically characterized as a dimer [YL(NTms)2]2. Partial oxidation of the central P atom with the formation of phosphine-oxide ligands PhP(O)(NBtd)2– was observed. They co-crystallize in the same position as non-oxidized ligands in [YL2]– and [YL(NTms2)]2 species and participate in bonding between two units in the latter. TD-DFT calculations reveal that main transitions in the visible region of electronic spectra correspond to the charge transfer bands mostly associated with the orbitals located on Btd fragments.
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Oswald AD, Verrieux L, Breuil PAR, Olivier-Bourbigou H, Thuilliez J, Vaultier F, Taoufik M, Perrin L, Boisson C. Cationic Phenoxyimine Complexes of Yttrium: Synthesis, Characterization, and Living Polymerization of Isoprene. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexis D. Oswald
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Ludmilla Verrieux
- Université de Lyon, Université Claude Bernard Lyon I, CNRS, INSA, CPE, UMR 5246, ICBMS, 1 rue Victor Grignard, F-69622 Villeurbanne cedex, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Pierre-Alain R. Breuil
- IFP Energies nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
| | | | - Julien Thuilliez
- Manufacture Michelin, 23 place Carmes Déchaux, F-63000 Clermont-Ferrand, France
| | - Florent Vaultier
- Manufacture Michelin, 23 place Carmes Déchaux, F-63000 Clermont-Ferrand, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Mostafa Taoufik
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Lionel Perrin
- Université de Lyon, Université Claude Bernard Lyon I, CNRS, INSA, CPE, UMR 5246, ICBMS, 1 rue Victor Grignard, F-69622 Villeurbanne cedex, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Christophe Boisson
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
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You F, Kang X, Nishiura M, Zhai J, Xu S, Wang J, Shi X, Hou Z. Living 3,4-Isoselective (Co)polymerization of Biobased β-Farnesene Catalyzed by Phosphine-Functionalized Fluorenyl Rare-Earth Metal Catalysts. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00887] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fen You
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Masayoshi Nishiura
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jingjing Zhai
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China
| | - Suting Xu
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China
| | - Jixing Wang
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China
| | - Xiaochao Shi
- Department of Polymer Materials, College of Materials Science and Engineering, Shanghai University, Materials Building, Nanchen Street 333, Shanghai 200444, China
| | - Zhaomin Hou
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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8
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Han Y, Liu Z, Zhao Z, Liu B, Cui D. Rare-Earth Metal Bis(alkyl) Complexes Bearing the FluCH 2-THF Ligand: Synthesis, Structures, and Catalysis toward Polymerizations of Conjugated Dienes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yutong Han
- Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhongfu Zhao
- Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Bo Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
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Jiang Y, Zhang Z, Li S, Cui D. Coordination Polymerization of Renewable (E)‐4,
8‐Dimethyl
‐1,3,
7‐Nonatriene
by
Rare‐Earth
Metal Catalysts. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yang Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China. Hefei 230026 China
| | - Zhen Zhang
- Department of Materials Science and Engineering Jilin University Changchun 130022 China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China. Hefei 230026 China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China
- School of Applied Chemistry and Engineering University of Science and Technology of China. Hefei 230026 China
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Namdeo PK, Sheokand S, Kote BS, Radhakrishna L, Kunchur HS, Saini P, Ramakrishnan S, Balakrishna MS. Ru II complexes of 1,2,3-triazole appended tertiary phosphines, [P(Ph){( o-C 6H 4)(1,2,3-N 3C(Ph)CH} 2] and [P(Ph){ o-C 6H 4(CCH)-(1,2,3-N 3-Ph)} 2]: highly active catalysts for transfer hydrogenation of carbonyl/nitro compounds and for α-alkylation of ketones. Dalton Trans 2022; 51:6795-6808. [PMID: 35420618 DOI: 10.1039/d2dt00361a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The synthesis of two new 1,2,3-triazole appended monophosphines [P(Ph){(o-C6H4)(1,2,3-N3C(Ph)CH}2] (1) and [P(Ph){o-C6H4(CCH)(1,2,3-N3-Ph)}2] (2) and their RuII complexes is described. The reactions of 1 and 2 with [Ru(PPh3)3Cl2] in a 1 : 1 molar ratio produced cationic complexes 3 and 4, respectively. Both the complexes showed very high catalytic activity towards transfer hydrogenation, nitro reduction, and α-alkylation reactions and afforded the corresponding products in good to excellent yields. The free energy of β-hydride elimination from the respective Ru-alkoxide intermediates, a key mechanistic step common to all the three catalytic pathways, was calculated to be close to ergoneutral by density functional theory-based calculations, which is posited to rationalize the catalytic activity of 3. The reduction of aromatic nitro compounds was found to be highly chemoselective and produced the corresponding amines as major products even in the presence of a carbonyl group. The triazolyl-N2 coordinated RuII-NPN complex 3 showed better catalytic activity compared to the triazolyl-N3 coordinated complex 4.
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Affiliation(s)
- Pavan K Namdeo
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Sonu Sheokand
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Basvaraj S Kote
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Latchupatula Radhakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Harish S Kunchur
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Prateek Saini
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Srinivasan Ramakrishnan
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Mironova OA, Lashchenko DI, Ryadun AA, Sukhikh TS, Bashirov DA, Pushkarevsky NA, Konchenko SN. Synthesis and photophysical properties of rare earth complexes bearing silanediamido ligands Me 2Si(NAryl) 22− (Aryl = Dipp, Mes). NEW J CHEM 2022. [DOI: 10.1039/d1nj05722g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Luminescence of the newly obtained silanediamides of rare earths was investigated. The triplet states of the ligands {Me2Si(NAryl)2}2− (Aryl = Dpp, Mes) were determined by the emission of Gd complexes, and the bright emission of Tb3+ was observed.
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Affiliation(s)
- Olga A. Mironova
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
| | - Daniil I. Lashchenko
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Pirogova St. 2, 630090 Novosibirsk, Russia
| | - Aleksey A. Ryadun
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
| | - Denis A. Bashirov
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
| | - Nikolay A. Pushkarevsky
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
| | - Sergey N. Konchenko
- Nikolaev Institute of Inorganic Chemistry SB RAS, Akademika Lavrentieva Ave. 3, 630090 Novosibirsk, Russia
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Side-Arm Assisted Anilido-Imine Based Rare-Earth Metal Complexes for Isoprene Stereoselective Polymerization. Molecules 2021; 26:molecules26144154. [PMID: 34299428 PMCID: PMC8306391 DOI: 10.3390/molecules26144154] [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: 06/08/2021] [Revised: 06/30/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
Anilido-imine ligands o-C6H4(NHAr1)(CH=NAr2), in which Ar1 is 2,6-diisopropylbenzyl group and Ar2 contains fluorine (HL1) or methoxyl (HL2) group on ortho-position of phenyl substituent, were synthesized for constructing rare-earth metals based complexes of 1a–1c (HL1 based Sc, Lu, Y) and 2a–2c (HL2 based Sc, Lu, Y). Based on their NMR spectra and X-ray single-crystal structures, the side-arm group of -F and -OMe is identified to chelate to the corresponding central metal. The twisted angles between two planes formed by chelated heteroatoms (N, N, F for HL1 and N, N, O for HL2) are observed, in which the largest dihedral angle (53.3°) for HL1-Y and the smallest dihedral angle (44.32°) for HL2-Sc are detected. After being activated by AliBu3 and [Ph3C][B(C6F5)4], these catalysts showed great activity for isoprene polymerization. Bearing the same ligand HL1, smaller scandium based complex 1a and middle size of lutetium based 1b provided lower cis-1,4-selectivity (57.3% and 64.2%), larger yttrium complex 1c displayed high cis-1,4-selectivity (84%). Chelating by crowded HL2, small size of scandium complex 2a provided impressive trans-1,4-selectivity (93.0%), middle lutetium based 2b displayed non-selectivity and larger yttrium complex 2c showed clear cis-1,4-selectivity (83.3%). Moreover, 2a/AliBu3 system showed the quasi-living chain transfer capability.
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Rad'kova NY, Kovylina TA, Cherkasov AV, Lyssenko KA, Ob'edkov AM, Trifonov AA. Coordination Features of the 1,3,5‐Triazapentadienyl Ligand in Alkyl Complexes of Rare‐Earth Metals. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Natalia Yu. Rad'kova
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Tatyana A. Kovylina
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Konstantin A. Lyssenko
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
- M.V. Lomonosov Moscow State University Chemistry Department Leninskie Gory 119991 Moscow Russia
| | - Anatoly M. Ob'edkov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
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14
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Jing C, Wang L, Zhu G, Hou H, Zhou L, Wang Q. Enhancing Thermal Stability in Aminopyridine Iron(II)-Catalyzed Polymerization of Conjugated Dienes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00591] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chuyang Jing
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Liang Wang
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Guangqian Zhu
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongbin Hou
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Li Zhou
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Qinggang Wang
- Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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15
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Jiang Y, Kang X, Zhang Z, Li S, Cui D. Syndioselective 3,4-Polymerization of 1-Phenyl-1,3-Butadiene by Rare-Earth Metal Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Zhen Zhang
- Department of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
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16
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Lin W, Zhang L, Suo H, Vignesh A, Yousuf N, Hao X, Sun WH. Synthesis of characteristic polyisoprenes using rationally designed iminopyridyl metal (Fe and Co) precatalysts: investigation of co-catalysts and steric influence on their catalytic activity. NEW J CHEM 2020. [DOI: 10.1039/d0nj00942c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A series of iminopyridyl ligand-based iron and cobalt complexes are utilized as catalysts in isoprene polymerization, in which the microstructure of resultant polyisoprenes was investigated.
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Affiliation(s)
- Wenhua Lin
- School of Textiles and Clothing
- Jiangnan University
- Wuxi
- China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
| | - Liping Zhang
- School of Textiles and Clothing
- Jiangnan University
- Wuxi
- China
| | - Hongyi Suo
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Arumugam Vignesh
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Nighat Yousuf
- CAS Research/Education Center for Excellence in Molecular Sciences
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Xiang Hao
- 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
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17
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Gurina GA, Kissel AA, Lyubov DM, Luconi L, Rossin A, Tuci G, Cherkasov AV, Lyssenko KA, Shavyrin AS, Ob'edkov AM, Giambastiani G, Trifonov AA. Bis(alkyl) scandium and yttrium complexes coordinated by an amidopyridinate ligand: synthesis, characterization and catalytic performance in isoprene polymerization, hydroelementation and carbon dioxide hydrosilylation. Dalton Trans 2020; 49:638-650. [DOI: 10.1039/c9dt04338a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly versatile and robust organolanthanides as catalysts or catalyst precursors for a variety of challenging transformations.
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18
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19
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Qin G, Cheng J. Thorium(iv) trialkyl complexes of non-carbocyclic ligands as highly active isoprene polymerisation catalysts. Dalton Trans 2019; 48:11706-11714. [PMID: 31274141 DOI: 10.1039/c9dt01617a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of mono-anionic non-carbocyclic ligands, including bidentate benzamidinate [PhC(NDipp)2] (Dipp = C6H3-2,6-iPr2), iminophosphinamide [Ph2P(NDipp)2] and phosphinoamide [Ph2PNDipp], and tridentate hydrotris(3,5-dimethyl-1-pyrazolyl)borate (TpMe2) were used to stabilize the corresponding thorium(iv) trialkyl complexes [PhC(NDipp)2]Th(CH2SiMe3)3 (1), [Ph2P(NDipp)2]Th(CH2SiMe3)3 (2), [Ph2P(NDipp)]Th(p-CH2-C6H4-Me)3 (3) and (TpMe2)Th(CH2SiMe3)3 (4), which were characterized by NMR spectroscopy and single-crystal X-ray analysis. Complexes 1-4 in combination with [Ph3C][B(C6F5)4] and AliBu3 form non-Cp-ligated actinide catalyst systems to show high activity and high cis-1,4-selectivity (89.9%) or trans-1,4-selectivity (91.4%) for the polymerization of isoprene. The reaction rate and selectivity of complexes 1 and 2 were controlled by the crowded space around the thorium centre, corroborated by the kinetics of the polymerization and the steric maps.
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Affiliation(s)
- Guorui Qin
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun, 130022 China.
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20
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Yu X, Li M, Hong J, Zhou X, Zhang L. Living 3,4‐(Co)Polymerization of Isoprene/Myrcene and One‐Pot Synthesis of a Polyisoprene Blend Catalyzed by Binuclear Rare‐Earth Metal Amidinate Complexes. Chemistry 2019; 25:2569-2576. [PMID: 30537360 DOI: 10.1002/chem.201804944] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 11/23/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaying Yu
- Department of ChemistryShanghai Key Laboratory of, Molecular Catalysis and Innovative MaterialsFudan University Shanghai 200438 China
| | - Meng Li
- Department of ChemistryShanghai Key Laboratory of, Molecular Catalysis and Innovative MaterialsFudan University Shanghai 200438 China
| | - Jianquan Hong
- Department of ChemistryShanghai Key Laboratory of, Molecular Catalysis and Innovative MaterialsFudan University Shanghai 200438 China
| | - Xigeng Zhou
- Department of ChemistryShanghai Key Laboratory of, Molecular Catalysis and Innovative MaterialsFudan University Shanghai 200438 China
- State Key Laboratory of Organometallic Chemistry Shanghai 200032 China
| | - Lixin Zhang
- Department of ChemistryShanghai Key Laboratory of, Molecular Catalysis and Innovative MaterialsFudan University Shanghai 200438 China
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21
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Zhang Z, Cai ZY, Pan YP, Dou YL, Li SH, Cui DM. Substituent Effects of Pyridyl-methylene Cyclopentadienyl Rare-earth Metal Complexes on Styrene Polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2209-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Jing C, Wang L, Mahmood Q, Zhao M, Zhu G, Zhang X, Wang X, Wang Q. Synthesis and characterization of aminopyridine iron(ii) chloride catalysts for isoprene polymerization: sterically controlled monomer enchainment. Dalton Trans 2019; 48:7862-7874. [DOI: 10.1039/c9dt00452a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aminopyridine iron(ii) chloride complexes coordinating a type of flexible ligand are reported as precursors for controlled polymerization of isoprenes.
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Affiliation(s)
- Chuyang Jing
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Liang Wang
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Qaiser Mahmood
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Mengmeng Zhao
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Guangqian Zhu
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Xianhui Zhang
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Xiaowu Wang
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
| | - Qinggang Wang
- Key Laboratory of Biobased Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao
- China
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23
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Li W, Nie H, Shao H, Ren H, He A. Synthesis, chain structures and phase morphologies of trans-1,4-poly(butadiene-co-isoprene) copolymers. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Liu X, Li W, Niu Q, Wang R, He A. Trans-1,4- stereospecific polymerization of isoprene with MgCl2-supported Ziegler-Natta catalyst I. Initial polymerization kinetic and polymerization mechanism. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.02.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Zhou G, Kang X, Wang X, Hou Z, Luo Y. Theoretical Investigations of Isoprene Polymerization Catalyzed by Cationic Half-Sandwich Scandium Complexes Bearing a Coordinative Side Arm. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00876] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangli Zhou
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xiaohui Kang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- College
of Pharmacy, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Xingbao Wang
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhaomin Hou
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Organometallic
Chemistry Laboratory and RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State
Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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26
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Huang J, Liu Z, Cui D, Liu X. Precisely Controlled Polymerization of Styrene and Conjugated Dienes by Group 3 Single-Site Catalysts. ChemCatChem 2017. [DOI: 10.1002/cctc.201701090] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianming Huang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 P.R. China
- University of Chinese Academy of Sciences, Changchun Branch; Changchun 130022 P.R. China
| | - Zhaohe Liu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 P.R. China
- University of Chinese Academy of Sciences, Changchun Branch; Changchun 130022 P.R. China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 P.R. China
| | - Xinli Liu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 P.R. China
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27
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Li N, Guan BT. Yttrium-Benzyl Complexes Bearing Chiral Iminophosphonamide Ligands: Synthesis and Application in Catalytic Asymmetric Amine-Silane Dehydrocoupling Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700327] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nan Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry
| | - Bing-Tao Guan
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin 300071 People's Republic of China
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28
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Chen J, Gao Y, Xiong S, Delferro M, Lohr TL, Marks TJ. Metal and Counteranion Nuclearity Effects in Organoscandium-Catalyzed Isoprene Polymerization and Copolymerization. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01621] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jiazhen Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Yanshan Gao
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Shuoyan Xiong
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Massimiliano Delferro
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tracy L. Lohr
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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29
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Trifonov AA, Lyubov DM. A quarter-century long story of bis(alkyl) rare-earth (III) complexes. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.09.013] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Prashanth B, Bawari D, Singh S. Heteroleptic Iminophosphonamide In(III) Complexes: Source of Mild Lewis Acid Indium Centers. ChemistrySelect 2017. [DOI: 10.1002/slct.201700026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Billa Prashanth
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar, Mohali 140306 Punjab India
| | - Deependra Bawari
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar, Mohali 140306 Punjab India
| | - Sanjay Singh
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar, Mohali 140306 Punjab India
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31
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DFT Studies on cis-1,4-Polymerization of Dienes Catalyzed by a Cationic Rare-Earth Metal Complex Bearing an Ancillary PNP Ligand. Polymers (Basel) 2017; 9:polym9020053. [PMID: 30970731 PMCID: PMC6431986 DOI: 10.3390/polym9020053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/20/2017] [Accepted: 01/22/2017] [Indexed: 01/23/2023] Open
Abstract
Dnsity functional theory (DFT) calculations have been carried out for the highly selective cis-1,4-polymerization of butadiene catalyzed by a cationic rare-earth metal complex bearing an ancillary PNP ligand. It has been found that the chain initiation and propagation of butadiene polymerization occurs via the favorable cis-1,4-insertion route. The trans-1,4 and 1,2-insertion are unfavorable both kinetically and thermodynamically. The chain growth follows the π-allyl-insertion mechanism. The analyses of energy decomposition of transition states indicate that the likelihood of rival insertion pathways is predominantly controlled by the interaction energy of butadiene with a metal center and the deformation energy of butadiene moiety. The electronic factor of the central metal has a decisive influence on the cis- vs. trans-insertion and the regioselectivity (cis-1,4- vs. cis-1,2-insertion) is mainly determined by steric hindrance. Tetrahydrofuran (THF) coordination made monomer insertion less favorable compared with THF-free case and had more noticeable impact on the trans-monomer insertion compared with the cis case. During the chain propagation, cis-insertion of monomer facilitates THF de-coordination and the THF molecule could therefore dissociate from the central metal.
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32
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Li L, Li S, Cui D. Chemo- and stereoselective polymerization of 3-methylenehepta-1,6-Diene and Its thiol-ene modification. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28463] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lei Li
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of the Chinese Academy of Sciences; Changchun Branch Changchun 130022 People's Republic of China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
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33
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Gu X, Wang S, Wei Y, Zhu X, Zhou S, Huang Z, Mu X. Rare earth metal bisamido complexes with an NNO tridentate ligand and catalytic activity for the selective polymerization of isoprene. NEW J CHEM 2017. [DOI: 10.1039/c7nj01454f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of rare earth metal bisamido complexes was synthesized, which could effectively initiate the polymerization of isoprene to afford polyisoprene with high regio- and stereo-selectivity in the presence of cocatalysts.
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Affiliation(s)
- Xiaoxia Gu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Shaowu Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Yun Wei
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Xiancui Zhu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Shuangliu Zhou
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Zeming Huang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
| | - Xiaolong Mu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- School of Chemistry and Materials Science
- Anhui Normal University
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34
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Zhang G, Deng B, Wang S, Wei Y, Zhou S, Zhu X, Huang Z, Mu X. Di and trinuclear rare-earth metal complexes supported by 3-amido appended indolyl ligands: synthesis, characterization and catalytic activity towards isoprene 1,4-cis polymerization. Dalton Trans 2016; 45:15445-15456. [PMID: 27604287 DOI: 10.1039/c6dt02922a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different di and trinuclear rare-earth metal complexes supported by 3-amido appended indolyl ligands were synthesized and their catalytic activities towards isoprene polymerization were investigated. Treatment of [RE(CH2SiMe3)3(thf)2] with 1 equiv. of 3-(CyN[double bond, length as m-dash]CH)C8H5NH in toluene or in THF afforded dinuclear rare-earth metal alkyl complexes having indolyl ligands in different hapticities with central metals {[η2:η1-μ-η1-3-(CyNCH(CH2SiMe3))Ind]RE-(thf)(CH2SiMe3)}2 (Cy = cyclohexyl, Ind = Indolyl, RE = Yb (1), Er (2), Y (3)) or {[η1-μ-η1-3-(CyNCH(CH2SiMe3))Ind]RE-(thf)2(CH2SiMe3)}2 (RE = Yb (4), Er (5), Y (6), Gd (7)), respectively. These two series of dinuclear complexes could be transferred to each other easily by only changing the solvents in the process. Reaction of [Er(CH2SiMe3)3(thf)2] with 1 equiv. of 3-t-butylaminomethylindole 3-(tBuNHCH2)C8H5NH in THF afforded the unexpected trinuclear erbium alkyl complex [η2:η1-μ-η1-3-(tBuNCH2)Ind]4Er3(thf)5(CH2SiMe3) (8), which can also be prepared by reaction of 3 equiv. of [Er(CH2SiMe3)3(thf)2] with 4 equiv. of 3-(tBuNHCH2)C8H5NH in THF. Accordingly, complexes [η2:η1-μ-η1-3-(tBuNCH2)Ind]4RE3(thf)5(CH2SiMe3) (RE = Y (9), Dy (10)) were prepared by reactions of 3 equiv. of [RE(CH2SiMe3)3(thf)2] with 4 equiv. of 3-(tBuNHCH2)C8H5NH in THF. Reactions of [RE(CH2SiMe3)3(thf)2] with 1 equiv. of 3-t-butylaminomethylindole 3-(tBuNHCH2)C8H5NH in THF, followed by treatment with 1 equiv. of [(2,6-iPr2C6H3)N[double bond, length as m-dash]CHNH(C6H3iPr2-2,6)] afforded, after workup, the dinuclear rare-earth metal complexes [η1-μ-η1:η1-3-(tBuNCH2)Ind][η1-μ-η1:η3-3-(tBuNCH2)Ind]RE2(thf)[(η3-2,6-iPr2C6H3)NCHN(C6H3iPr2-2,6)]2(RE = Er (11), Y (12)) having the indolyl ligands bonded with the rare-earth metal in different ligations. All new complexes 1-12 were fully characterized by spectroscopic methods and elemental analyses, and their structures were determined by X-ray crystallographic analyses. It was found that, except for complexes 1, 4, 11 and 12, all complexes were highly efficient catalysts for selective isoprene polymerization (up to 99% 1,4-cis selectivity) with the cooperation of co-catalysts, and the trinuclear complexes displayed advantages over dinuclear complexes in terms of molecular weight of polymers.
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Affiliation(s)
- Guangchao Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, P. R. China.
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35
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Prashanth B, Srungavruksham NK, Singh S. Mononuclear Neutral Boron Hydrides Affordable as [N,N’] Chelates of Iminophosphonamides. ChemistrySelect 2016. [DOI: 10.1002/slct.201600746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Billa Prashanth
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar Mohali 140306, Punjab India
| | - Nagarjuna Kumar Srungavruksham
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar Mohali 140306, Punjab India
| | - Sanjay Singh
- Department of Chemical Sciences; Indian Institute of Science Education and Research Mohali; Knowledge City, Sector-81, SAS Nagar Mohali 140306, Punjab India
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36
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Lyubov DM, Cherkasov AV, Fukin GK, Trifonov AA. Selective Intermolecular C–H Bond Activation: A Straightforward Synthetic Approach to Heteroalkyl Yttrium Complexes Containing a Bis(pyrazolyl)methyl Ligand. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00883] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334, Moscow, Russia
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37
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Rufanov KA, Pruß NK, Sundermeyer J. Simple entry into N-tert-butyl-iminophosphonamide rare-earth metal alkyl and chlorido complexes. Dalton Trans 2016; 45:1525-38. [DOI: 10.1039/c5dt03721b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New series of rare-earth metal dialkyls [(NPNtBu)Ln(CH2SiMe3)2(THF)n] (Ln = Sc,n= 0 (2), Ln = Y,n= 1 (3)) and monoalkyls [(NPNtBu)2Ln(CH2SiMe3)] (Ln = Y (4), Nd (6), Sm (7)), [(NPNtBu)2Sc(THF)CH3] (5) are achieved by protolysis of highly basic ligand Ph2P(N-tBu)(NH-tBu) = (NPNtBu)H (1). Further alkyl abstraction, alkyl/Cl exchange reactions and X-ray structure analyses of thus obtained new complexes are presented.
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Affiliation(s)
- Konstantin A. Rufanov
- Department of Chemistry
- M.V. Lomonosov State University of Moscow
- 119991 Moscow
- Russian Federation
| | - Noa K. Pruß
- Fachbereich Chemie der Philipps-Universität Marburg
- 35032 Marburg
- Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie der Philipps-Universität Marburg
- 35032 Marburg
- Germany
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38
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Peng D, Yan X, Yu C, Zhang S, Li X. Transition metal complexes bearing tridentate ligands for precise olefin polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00040a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers key developments in the design of post-metallocene transition metal complexes (precatalysts) bearing tridentate chelating ligands and their application in olefin polymerization.
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Affiliation(s)
- Deqian Peng
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Xinwen Yan
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Chao Yu
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
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39
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Rad'kova NY, Tolpygin AO, Rad'kov VY, Khamaletdinova NM, Cherkasov AV, Fukin GK, Trifonov AA. Bis(alkyl) rare-earth complexes coordinated by bulky tridentate amidinate ligands bearing pendant Ph2PO and Ph2PNR groups. Synthesis, structures and catalytic activity in stereospecific isoprene polymerization. Dalton Trans 2016; 45:18572-18584. [DOI: 10.1039/c6dt03074b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Replacement of Ph2PO group by Ph2PNPh leads to a switch of stereoselectivity from cis-1,4 to trans-1,4.
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Affiliation(s)
- Natalia Yu. Rad'kova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Vasily Yu. Rad'kov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | | | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgi K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement compounds of Russian Academy of Sciences
- Moscow
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40
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Shi L, Su Q, Chen J, Li X, Luo Y. Rare-earth metal bis(silylamide) complexes supported by mono-dentate arylamido ligand: synthesis, reactivity, and catalyst precursors in living cis-1,4-selective polymerization of isoprene. Dalton Trans 2016; 45:1391-7. [DOI: 10.1039/c5dt03937a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
One-pot salt metathesis reaction of LnCl3, [2,6-iPr2C6H3N(SiMe3)]Li and LiN(SiHMe2)2 in 1 : 1 : 2 molar ratio gave [2,6-iPr2C6H3N(SiMe3)]Ln[N(SiHMe2)2]2(THF) (Ln = Y, Lu, La), which were highly active for cis-1,4 polymerization of isoprene in the presence of [Ph3C][B(C6F5)4] and AliBu3.
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Affiliation(s)
- Liqin Shi
- Ningbo Polytechnic
- Ningbo 315800
- P. R. China
- Zhejiang University of Technology
- Hangzhou 310032
| | - Qi Su
- Organometallic Chemistry Laboratory
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- P. R. China
| | - Jue Chen
- Organometallic Chemistry Laboratory
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- P. R. China
| | - Xiaonian Li
- Zhejiang University of Technology
- Hangzhou 310032
- P. R. China
| | - Yunjie Luo
- Organometallic Chemistry Laboratory
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- P. R. China
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41
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Hong K, Liang Z, Ni X, Shen Z. Polymerization of conjugated dienes with a homogeneous Ziegler–Natta catalytic system based on a carbon-bridged bis(phenolate) yttrium alkyl complex. RSC Adv 2016. [DOI: 10.1039/c6ra06144c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1,3-Diene polymerization with some controllable characteristics was carried out and catalyzed by a triisobutylaluminum modified MAO activated complex [(EDBP)Y(CH2SiMe3)(THF)3].
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Affiliation(s)
- Kan Hong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhenhua Liang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Ni
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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42
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Tolpygin AO, Linnikova OA, Glukhova TA, Cherkasov AV, Fukin GK, Trifonov AA. Bis(amido) rare-earth complexes coordinated by tridentate amidinate ligand: synthesis, structure and catalytic activity in the polymerization of isoprene and rac-lactide. RSC Adv 2016. [DOI: 10.1039/c5ra27960g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rare-earth bis(amides) {2-[Ph2Р(O)]C6H4NC(tBu)N(2,6-Me2C6H3)}Ln(N(SiMe3)2)2 (Ln = Y, Nd, La) coordinated by tridentate amidinate ligand were synthesized, structurally characterized and evaluated as catalysts for isoprene and rac-lactide polymerizations.
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Affiliation(s)
- Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Olesya A. Linnikova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Tatyana A. Glukhova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
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43
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Liu B, Sun G, Li S, Liu D, Cui D. Isoprene Polymerization with Iminophosphonamide Rare-Earth-Metal Alkyl Complexes: Influence of Metal Size on the Regio- and Stereoselectivity. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00502] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bo Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- Key
Laboratory of Automobile Materials of Ministry of Education, Department
of Materials Science and Engineering, Jilin University, Changchun, 130025, China
| | - Guangping Sun
- Key
Laboratory of Automobile Materials of Ministry of Education, Department
of Materials Science and Engineering, Jilin University, Changchun, 130025, China
| | - Shihui Li
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Dongtao Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Dongmei Cui
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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44
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45
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Yao C, Lin F, Wang M, Liu D, Liu B, Liu N, Wang Z, Long S, Wu C, Cui D. Highly Syndioselective 3,4-Trans Polymerization of (E)-1-(4-Methylphenyl)-1,3-butadiene by Fluorenyl N-Heterocyclic Carbene Ligated Lutetium Bis(alkyl) Precursor. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00226] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Changguang Yao
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese
Academy of Sciences, Changchun Branch, Changchun 130022, People’s Republic of China
| | - Fei Lin
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese
Academy of Sciences, Changchun Branch, Changchun 130022, People’s Republic of China
| | - Meiyan Wang
- Institute of Theoretical Chemistry, State Key Laboratory
of Theoretical and Computational Chemistry, Jilin University, Changchun 130022, People’s Republic of China
| | - Dongtao Liu
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Bo Liu
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Na Liu
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese
Academy of Sciences, Changchun Branch, Changchun 130022, People’s Republic of China
| | - Zichuan Wang
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese
Academy of Sciences, Changchun Branch, Changchun 130022, People’s Republic of China
| | - Shiyu Long
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University of the Chinese
Academy of Sciences, Changchun Branch, Changchun 130022, People’s Republic of China
| | - Chunji Wu
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Dongmei Cui
- State Key
Laboratory of Polymer Physics and Chemistry, Changchun Institute of
Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
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46
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Liu B, Han BY, Zhang CL, Li SH, Sun GP, Cui DM. Renewable β-myrcene polymerization initiated by lutetium alkyl complexes ligated by imidophosphonamido ligand. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1629-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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PRASHANTH BILLA, SINGH SANJAY. Bulky iminophosphonamines for N–P–N coordination: Synthesis and structural characterization of lithium iminophosphonamides and homoleptic bis-chelates of Co(II), Ni(II) and Cu(II). J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0769-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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48
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Yakovenko MV, Udilova NY, Glukhova TA, Cherkasov AV, Fukin GK, Trifonov AA. Amido rare-earth complexes supported by an ansa bis(amidinate) ligand with a rigid 1,8-naphthalene linker: synthesis, structures and catalytic activity in rac-lactide polymerization and hydrophosphonylation of carbonyl compounds. NEW J CHEM 2015. [DOI: 10.1039/c4nj01698j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis of rare-earth amides and their catalytic activity in ROP of lactide.
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Affiliation(s)
- Marina V. Yakovenko
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Natalia Yu. Udilova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Tatyana A. Glukhova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
- Nizhny Novgorod
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
- Nizhny Novgorod
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49
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Tolpygin AO, Glukhova TA, Cherkasov AV, Fukin GK, Aleksanyan DV, Cui D, Trifonov AA. Bis(alkyl) rare-earth complexes supported by a new tridentate amidinate ligand with a pendant diphenylphosphine oxide group. Synthesis, structures and catalytic activity in isoprene polymerization. Dalton Trans 2015; 44:16465-74. [DOI: 10.1039/c5dt02570b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The introduction of a pendant Ph2P(O) group into an amidinate ligand resulted in high 1,4-cis selectivity (96.6%) while maintaining very high activity.
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Affiliation(s)
- Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Tatyana A. Glukhova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Diana V. Aleksanyan
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
- Russia
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
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50
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Hawley AL, Stasch A. Structural Diversity in Sterically Demanding Diiminophosphinato Alkali Metal Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402924] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andrew L. Hawley
- School of Chemistry, Monash University, PO Box 23, Melbourne, Victoria 3800, Australia, http://monash.edu/science/about/schools/chemistry/staff/stasch/
| | - Andreas Stasch
- School of Chemistry, Monash University, PO Box 23, Melbourne, Victoria 3800, Australia, http://monash.edu/science/about/schools/chemistry/staff/stasch/
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