1
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Shen L, Zhai J, Huo Y, Wang X, Shi X. Bis(phosphinophenyl)amido-Ligated Binuclear Rare-Earth Metal Complexes for Highly cis-1,4-Selective Polymerization of 1,3-Conjugated Dienes. Macromol Rapid Commun 2024:e2400486. [PMID: 39141848 DOI: 10.1002/marc.202400486] [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: 06/22/2024] [Revised: 07/23/2024] [Indexed: 08/16/2024]
Abstract
A series of binuclear rare-earth metal complexes based on the ligands containing bis(phosphinophenyl)amido-PNP unit are successfully synthesized. All the ligands and the corresponding binuclear complexes are fully characterized by NMR spectra (1H, 13C, and 31P). In conjunction with [Ph3C][B(C6F5)4], all the binuclear complexes exhibited high catalytic activity and high cis-1,4-selectivity (>99%) toward the polymerization of 1,3-conjugated dienes (isoprene, β-myrcene and β-farnesene) with excellent livingness at room temperature or even 80 °C.
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Affiliation(s)
- Liying Shen
- College of Chemical Engineering and Materials, Handan University, Handan, 056005, China
| | - Jingjing Zhai
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Yanchen Huo
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Xiuling Wang
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Xiaochao Shi
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
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2
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Yan X, Chen W, Xie W, Wang X, So YM, Shi X. Binuclear Enamino-Oxazolinate Rare-Earth Metal Complexes: Synthesis and Their Catalytic Performance in Isoprene Polymerization. Inorg Chem 2024; 63:13358-13366. [PMID: 38946308 DOI: 10.1021/acs.inorgchem.4c01219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
We have synthesized a series of binuclear rare-earth metal complexes bearing the newly designed enamino-oxazolinate ligands that feature bridging para-phenyl, meta-phenyl, 1,5-naphthalenyl, and 1,5-anthracenyl moieties. NMR and X-ray diffraction analyses confirmed the binuclear structures of the obtained complexes with two enamino-oxazolinate-metal units located at a trans position against the bridged aryl plane. After activation by [Ph3C][B(C6F5)4], all the rare-earth metal complexes served as efficient catalysts for isoprene polymerization, producing polymers with high cis-1,4 regularity (up to 96.1%) and high molecular weight. The steric and electronic effects exerted on the active metal centers, as well as the radius of metal centers, were the major contributing factors for determining both the catalytic activity and cis-1,4-selectivity of the binuclear catalytic systems. Compared to its mononuclear analogue, the binuclear yttrium catalytic system with a para-phenyl bridge exhibited a higher thermostability and catalytic efficiency during polymerization, revealing a special binuclear effect in this binuclear catalytic system.
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Affiliation(s)
- Xuyang Yan
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Wentao Chen
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Wang Xie
- Research Center for Composite Materials, Shanghai University, Shanghai 200444, China
| | - Xiuling Wang
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
| | - Yat-Ming So
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 0000, China
| | - Xiaochao Shi
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
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3
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Arras J, Calderón-Díaz A, Lebedkin S, Gozem S, McMillen CD, Bhuvanesh N, Stollenz M. Twisted and Disconnected Chains: Flexible Linear Tetracuprous Arrays and a Decanuclear Cu I Cluster as Blue- and Green/Yellow-Light Emitters. Inorg Chem 2024; 63:12943-12957. [PMID: 38935842 PMCID: PMC11256752 DOI: 10.1021/acs.inorgchem.4c01646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024]
Abstract
Defined arrays of transition metal ions embedded in tailored polydentate ligand scaffolds allow for a systematic design of their physical properties. Such molecular strings of closed-shell transition metal centers are particularly interesting for Group 11 metal ions in the oxidation state +1 if they undergo metallophilic d10···d10 contact interactions since these clusters are oftentimes efficient photoluminescence (PL) emitters. Copper is particularly attractive as a sustainable earth-abundant coinage metal source and because of the ability of several CuI complexes to serve as powerful thermally activated delayed fluorescence (TADF) emitters in molecular/organic light-emitting devices (OLEDs). Our combined synthetic, crystallographic, photophysical, and computational study describes a straight tetracuprous array possessing a centrally disconnected CuI2···CuI2 chain and a continuous helically bent CuI4 complex. This molecular helix undergoes a facile rearrangement in diethyl ether solution, yielding an unprecedented nanosized CuI10 cluster (2.9 × 2.0 nm) upon crystallization. All three clusters show either bright blue phosphorescence, TADF, or green/yellow multiband phosphorescence with quantum yields between 6.5 and 67%, which is persistent under hydrostatic pressure up to 30 kbar. Temperature-dependent PL investigations in combination with time-dependent density-functional theory (TD-DFT) calculations and void space analyses of the crystal packings complement a comprehensive correlation between the molecular structures and photoluminescence properties.
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Affiliation(s)
- Janet Arras
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
| | - Alvaro Calderón-Díaz
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
| | - Sergei Lebedkin
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Samer Gozem
- Department
of Chemistry, Georgia State University, 145 Piedmont Ave SE, Atlanta, Georgia 30303, United States
| | - Colin D. McMillen
- Department
of Chemistry, Clemson University, 379 Hunter Laboratories, Clemson, South Carolina 29634-0973, United States
| | - Nattamai Bhuvanesh
- Department
of Chemistry, Texas A&M University, 580 Ross Street, P.O. Box 30012, College Station, Texas 77842-3012, United
States
| | - Michael Stollenz
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
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4
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Tang Y, Chen H, Chen Y, Chen J, Luo Y. Rare-Earth Metal Complexes Supported by A Tridentate Amidinate Ligand: Synthesis, Characterization, and Catalytic Comparison in Isoprene Polymerization. Inorg Chem 2024; 63:7848-7857. [PMID: 38635372 DOI: 10.1021/acs.inorgchem.4c00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
To systematically investigate the dependence of the initiating group and metal size on polymerization performance, a family of rare-earth metal bis(alkyl)/bis(benzyl)/bis(amide) complexes supported by a monoanionic tridentate amidinate ligand [(2,6-iPr2C6H3)NC(Ph)N(C6H4-2-OMe]- (HL) were synthesized and well-characterized. Treatment of rare-earth metal tris(alkyl)/tris(benzyl)/tris(amide) complexes Y(CH2C6H4NMe2-o)3 or Y(CH2SiMe3)3(THF)2 or Ln[N(SiHMe2)2]3(THF)x (Ln = Sc, x = 1; Ln = Y, La, Sm, Lu, x = 2) with 1 equiv of HL gave the corresponding mono(amidinate) rare-earth metal bis(alkyl)/bis(benzyl)/bis(amide) complexes [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Y(CH2C6H4NMe2-o)2 (1), [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Y(CH2SiMe3)2(THF) (2), and [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Ln[N(SiHMe2)2]2(THF)n (Ln = Y, n = 1 (3); Ln = La, n = 1 (4); Ln = Sc, n = 0 (5); Ln = Lu, n = 0 (6); Ln = Sm, n = 0 (7)) in good isolated yields. These complexes were characterized by elemental analysis, NMR spectroscopy, and single-crystal X-ray diffraction. In the presence of excess AlMe3 and on treatment with 1 equiv of [Ph3C][B(C6F5)4], these complexes could serve as precatalysts for cationic polymerization of isoprene, in which the dependence of the polymerization activity and regioselectivity on the initiating group and metal size was observed.
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Affiliation(s)
- Yue Tang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Haonan Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yanjun Chen
- Ningbo Polytechnic, Ningbo 315800, P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering, NingboTech University, Ningbo 315100, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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5
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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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End functionalization of polyisoprene and polymyrcene obtained by anionic polymerization via one-pot ring-opening mono-addition of epoxides. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Hand AT, Lamb AC, Richmond MG, Wang X, Steren CA, Xue ZL. Syntheses of Group 5 Amide Amidinates and Their Reactions with Water: Different Reactivities of Nb(V) and Ta(V) Complexes. Inorg Chem 2022; 61:19075-19087. [DOI: 10.1021/acs.inorgchem.2c02365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Adam T. Hand
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Adam C. Lamb
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Michael G. Richmond
- Department of Chemistry, The University of North Texas, Denton, Texas 76203, United States
| | - Xiaoping Wang
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Carlos A. Steren
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
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8
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Zhang J, Aydogan C, Patias G, Smith T, Al-Shok L, Liu H, Eissa AM, Haddleton DM. Polymerization of Myrcene in Both Conventional and Renewable Solvents: Postpolymerization Modification via Regioselective Photoinduced Thiol-Ene Chemistry for Use as Carbon Renewable Dispersants. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:9654-9664. [PMID: 35935282 PMCID: PMC9344384 DOI: 10.1021/acssuschemeng.2c03755] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Polymeric dispersants are useful materials used in many different industries and often derived from oil-based chemicals, for example, in automotive fluids so as to prevent particulates from precipitation and causing potential damage. These are very often polyisobutene derivatives, and there is a growing need to replace these using chemicals using renewable resources such as the use of naturally occurring myrcene. Polymyrcene (PMy), with an ordered microstructure, has been successfully synthesized via both anionic and radical polymerization in different solvents and subsequently subjected to functionalization via photoinduced thiol-ene click reactions with a number of thiols, methyl thioglycolate, 3-mercaptopropionic acid, 3-mercapto-1-hexanol, 2-mercaptoethanol, and 1-thioglycerol, using 2,2-dimethoxy-2-phenylacetophenone as a photoinitiator under UV irradiation (λ = 365 nm) at ambient temperature. The polarity of the solvent has an important impact on the microstructure of the produced polymyrcene and, in particular, 1,2-unit (∼4%), 3,4-unit (∼41%), and 1,4-unit (∼51%) PMy were obtained via anionic polymerization in a polar solvent (THF) at ambient temperature, while 3,4-unit (∼6%) and 1,4-unit (∼94%, including cis and trans) PMy were obtained with cyclohexane as the solvent. Subsequently, photochemical thiol-ene reactions were carried out on the resulting PMy with different isomers exhibiting different reactivities of the double bonds. This strategy allows for the introduction of functional/polar groups (-COOH, -OH) into hydrophobic PMy in a controlled process. Hydrogenation of PMy and derivatized PMy was carried out to investigate any effects on the stabilities of the products which are desirable for many applications.
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Affiliation(s)
- Jirui Zhang
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Cansu Aydogan
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Georgios Patias
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Timothy Smith
- Lubrizol,
Ltd., Nether Lane, Hazelwood, Derbyshire DE56 4AN, United Kingdom
| | - Lucas Al-Shok
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Huizhe Liu
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Ahmed M. Eissa
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - David M. Haddleton
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
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9
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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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10
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Tao Y, She S, Wang X, Wang F, Ji X, Yan B, Chu C, Wang S. Synthesis, structure of dinuclear o-phenylene linked bis(amidinate) rare-earth metal complexes and their catalytic activity towards Strecker reaction. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Arras J, Ugarte Trejo O, Bhuvanesh N, McMillen C, Stollenz M. Hydrogen bonds and dispersion forces serving as molecular locks for tailored Group 11 bis(amidine) complexes. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00443g] [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
A flexible polydentate bis(amidine) ligand LH2 operates as a molecular lock for various coinage metal fragments and forms the dinuclear complexes [LH2(MCl)2], M = Cu (1), Au (2), the coordination...
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12
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Guo L, Guo C, Peng S, Song R. Synthesis, structure, and coordination chemistry of a neutral pyrrolyl-functionalized amidinate ligand. NEW J CHEM 2022. [DOI: 10.1039/d1nj05548h] [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
A new o-phenylene-bridged ligand incorporating neutral pyrrolyl and amidino moieties was designed and synthesized. The reactivity of the ligand was investigated and showed versatile coordination modes towards alkali- and rare-earth metals.
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Affiliation(s)
- Liping Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Changjia Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Shuqi Peng
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Renyuan Song
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
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13
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Lamparelli DH, Winnacker M, Capacchione C. Stereoregular Polymerization of Acyclic Terpenes. Chempluschem 2021; 87:e202100366. [PMID: 34674387 DOI: 10.1002/cplu.202100366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/05/2021] [Indexed: 12/27/2022]
Abstract
The growing environmental pollution and the expected depleting of fossil resources have sparked interest in recent years for polymers obtained from monomers originating from renewable sources. Furthermore, nature can provide a variety of building blocks with special structural features (e. g. side groups or stereo-elements) that cannot be obtained so easily via fossil-based pathways. In this context, terpenes are widespread natural compounds coming from non-food crops, present in a large variety of structures, and ready to use as monomers with or without further modifications. The present review aims to provide an overview of how chemists can stereospecifically polymerize terpenes, particularly the acyclic ones like myrcene, ocimene, and farnesene, using different metal catalyst systems in coordination-insertion polymerization. Attention is also paid to their copolymers, which have recently been disclosed, and to the possible applications of these bio-based materials in various industrial sectors such as in the field of elastomers. © 2021 The Authors. ChemPlusChem published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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Affiliation(s)
- David Hermann Lamparelli
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, via Giovanni Paolo II, 84084, Fisciano, Italy
| | - Malte Winnacker
- WACKER-Chair of Macromolecular Chemistry, Technische Universität München, Lichtenbergstraße 4, 85747, Garching bei München, Germany.,Catalysis Research Center (CRC)', Technische Universität München, Ernst-Otto-Fischer-Straße 1, 85748, Garching bei München, Germany
| | - Carmine Capacchione
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, via Giovanni Paolo II, 84084, Fisciano, Italy
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14
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Basalova OA, Tolpygin AO, Kovylina TA, Cherkasov AV, Fukin GK, Lyssenko KA, Trifonov AA. Bis(tetramethylaluminate) Lanthanide Complexes Supported by Amidinate Ligands with a Pendant Ph 2P═X (X = O, S) Group: Application in Isoprene Polymerization. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olesya A. Basalova
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova str. 28, 119334 Moscow, Russia
| | - Tatyana A. Kovylina
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Konstantin A. Lyssenko
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova str. 28, 119334 Moscow, Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova str. 28, 119334 Moscow, Russia
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15
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Rad'kova NY, Skvortsov GG, Cherkasov AV, Fukin GK, Kovylina TA, Ob'edkov AM, Trifonov AA. Bis(alkyl) Sc and Y Complexes Supported by Tri‐ and Tetradentate Amidinate Ligands: Synthesis, Structure, and Catalytic Activity in α‐Olefin and Isoprene Polymerization. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Natalia Yu. Rad'kova
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Grigorii G. Skvortsov
- 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
| | - Georgy K. Fukin
- 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
| | - 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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16
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Lanthanides and actinides: Annual survey of their organometallic chemistry covering the year 2019. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213830] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Zhu X, Guo D, Yao F, Huang Z, Li Y, Xie Z, Wang S. Synthesis, Characterization, and Catalytic Activity of Dinuclear Rare-Earth Metal Alkyl Complexes Bearing 2,6-Diisopropylphenylamidomethyl Functionalized Pyrrolyl Ligand. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiancui Zhu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Dianjun Guo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Fangshi Yao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Zeming Huang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Yang Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, P. R. China
| | - Shaowu Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, P. R. China
- Anhui Laboratory of Clean Catalytic Engineering, Anhui Laboratory of Functional Complexes for Materials Chemistry and Application, College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, Anhui, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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18
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Basalova OA, Tolpygin AO, Kovylina TA, Cherkasov AV, Fukin GK, Trifonov AA. Bis(tetramethylaluminate) Lanthanide Complexes Supported by Bi- and Tridentate Amidinate Ligands: Performance in Isoprene Polymerization. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olesya A. Basalova
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
| | - Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
- Institute of Organoelement compounds of Russian Academy of Sciences, Vavilova str. 28, 119334, Moscow, Russia
| | - Tatyana A. Kovylina
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950, Nizhny Novgorod, Russia
- Institute of Organoelement compounds of Russian Academy of Sciences, Vavilova str. 28, 119334, Moscow, Russia
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19
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Salt metathesis reactions of LnCl3 (Sc, Y vs. Sm, Yb) with potassium diphenylmethanide {[2,2′-(4-MeC6H3NMe2)2CH]K(THF)}2. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.01.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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González-Zapata JL, Enríquez-Medrano FJ, López González HR, Revilla-Vázquez J, Carrizales RM, Georgouvelas D, Valencia L, Díaz de León Gómez RE. Introducing random bio-terpene segments to high cis-polybutadiene: making elastomeric materials more sustainable. RSC Adv 2020; 10:44096-44102. [PMID: 35517134 PMCID: PMC9058462 DOI: 10.1039/d0ra09280k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/02/2020] [Indexed: 11/29/2022] Open
Abstract
In this work, we explore the statistical copolymerization of 1,3-butadiene with the terpenic monomers myrcene and farnesene, carried out via coordination polymerization using a neodymium-based ternary catalytic system. The resultant copolymers, poly(butadiene-co-myrcene) and poly(butadiene-co-farnesene), were synthesized at different monomer ratios, elucidating the influence of the bio-based monomer content over the kinetic variables, molecular and thermal properties, and the reactivity constants (Fineman-Ross and Kelen-Tüdös methods) of the resultant copolymers. The results indicate that through the herein employed conditions, it is possible to obtain "more sustainable" high-cis (≈95%) polybutadiene elastomers with random and tunable content of bio-based monomer. Moreover, the polymers exhibit fairly high molecular weights and a rather low dispersity index. Upon copolymerization, the T g of high-cis PB can be shifted from -106 to -75 °C (farnesene) or -107 to -64 °C (myrcene), without altering the microstructure control. This work contributes to the development of more environmentally friendly elastomers, to form "green" rubber materials.
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Affiliation(s)
- José Luis González-Zapata
- Research Center for Applied Chemistry Blvd. Enrique Reyna 140, San José de los Cerritos 25294 Saltillo Coahuila Mexico
| | | | - Héctor Ricardo López González
- Research Center for Applied Chemistry Blvd. Enrique Reyna 140, San José de los Cerritos 25294 Saltillo Coahuila Mexico
| | - Javier Revilla-Vázquez
- Departamento de Ingeniería y Tecnología, División Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, UNAM Av. Primero de Mayo s/n Cuautitlán Izcalli C.P. 54740 Estado de México México
| | - Ricardo Mendoza Carrizales
- Research Center for Applied Chemistry Blvd. Enrique Reyna 140, San José de los Cerritos 25294 Saltillo Coahuila Mexico
| | - Dimitrios Georgouvelas
- Division of Materials and Environmental Chemistry, Stockholm University Frescativägen 8 10691 Stockholm Sweden
| | - Luis Valencia
- Materials Technology and Chemistry, Alfa Laval Tumba AB SE-14782 Tumba Sweden
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21
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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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22
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Feng Z, Wang S, Wu Y, Li Q, Zhao X, Wang X, Wang S. cis-1,4-Polymerization of isoprene catalyzed by rare-earth metal amido complexes supported by 2-t-butylimino- or 2-amino-functionalized indolyl ligand. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Wang Y, Zhou C, Cheng J. Binuclear Scandium Initiators for the Syndiospecific Triblock Copolymerization of Styrene with ε-Caprolactone. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yang Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Chulu Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
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24
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Gan Q, Xu Y, Huang W, Luo W, Hu Z, Tang F, Jia X, Gong D. Utilization of bio‐sourced myrcene for efficient preparation of highly
cis
‐1,4 regular elastomer via a neodymium catalyzed copolymerization strategy. POLYM INT 2020. [DOI: 10.1002/pi.6011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Qiao Gan
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Yuechao Xu
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Weizhong Huang
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Wanwei Luo
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Zhonghan Hu
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Fuming Tang
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
| | - Xiaoyu Jia
- Key Laboratory of Urban Environment and HealthInstitute of Urban Environment, Chinese Academy of Sciences Xiamen P. R. China
- Ningbo Urban Environment Observation and Research Station – NUEORS, Chinese Academy of Sciences Ningbo P. R. China
| | - Dirong Gong
- Faculty of Materials Science and Chemical EngineeringNingbo University Ningbo P. R. China
- Key Laboratory of Urban Environment and HealthInstitute of Urban Environment, Chinese Academy of Sciences Xiamen P. R. China
- Ningbo Urban Environment Observation and Research Station – NUEORS, Chinese Academy of Sciences Ningbo P. R. China
- State Key Laboratory of Polymer Physics and ChemistryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun P. R. China
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25
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Wang C, Chen J, Xu W, Mou Z, Yao Y, Luo Y. Bimetallic Arylamide-Ligated Rare-Earth Metal Complexes: Synthesis, Characterization, and Stereo-Selectively Switchable Property in 2-Vinylpyridine Polymerization. Inorg Chem 2020; 59:3132-3141. [DOI: 10.1021/acs.inorgchem.9b03495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chaopan Wang
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P. R. China
| | - Wei Xu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Zehuai Mou
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yunjie Luo
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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26
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Kretschmer R. Ligands with Two Monoanionic N,N-Binding Sites: Synthesis and Coordination Chemistry. Chemistry 2020; 26:2099-2119. [PMID: 31755598 PMCID: PMC7064907 DOI: 10.1002/chem.201903442] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 11/07/2022]
Abstract
Polytopic ligands have become ubiquitous in coordination chemistry because they grant access to a variety of mono- and polynuclear complexes of transition metals as well as rare-earth and main-group elements. Nitrogen-based ditopic ligands, in which two monoanionic N,N-binding sites are framed within one molecule, are of particular importance and are therefore the primary focus of this review. In detail, bis(amidine)s, bis(guanidine)s, bis(β-diimine)s, bis(aminotroponimine)s, bis(pyrrolimine)s, and miscellaneous bis(N,N-chelating) ligands are reviewed. In addition to the general synthetic protocols, the application of these ligands is discussed along with their coordination chemistry, the multifarious binding modes, and the ability of these ligands to bridge two (or more) metal(loids).
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Affiliation(s)
- Robert Kretschmer
- Junior Professorship Inorganic Chemistry of Catalysis, Institute of Inorganic and Analytical ChemistryFriedrich Schiller University JenaHumboldtstrasse 807743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
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27
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Li W, Jiang X, So YM, He G, Pan Y. Lutetium and yttrium complexes supported by an anilido-oxazoline ligand for polymerization of 1,3-conjugated dienes and ε-caprolactone. NEW J CHEM 2020. [DOI: 10.1039/c9nj05081g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lutetium and yttrium complexes supported by an anilido-oxazoline ligand exhibit highcis-1,4 stereoselectivity for 1,3-conjugated diene polymerization and high activity for ring-opening polymerization of ε-caprolactone.
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Affiliation(s)
- Wenqiang Li
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- China
| | - Xinxin Jiang
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- China
| | - Yat-Ming So
- Department of Chemistry
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- China
| | - Yu Pan
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- China
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28
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Li M, Zhang J, Chen J, Yao Y, Luo Y. Rare‐earth metal derivatives supported by aminophenoxy ligand: Synthesis, characterization and catalytic performance in lactide polymerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Li
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
| | - Jie Zhang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of TechnologyZhejiang University Ningbo 315100 China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Yunjie Luo
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
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29
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Kazeminejad N, Münzfeld L, Gamer MT, Roesky PW. Mono- and bimetallic amidinate samarium complexes - synthesis, structure, and hydroamination catalysis. Dalton Trans 2019; 48:8153-8160. [PMID: 31070636 DOI: 10.1039/c9dt01418g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In order to investigate the difference between mono- and bimetallic systems in the catalytic hydroamination/cyclization reaction two mono- and bimetallic amidinate samarium catalysts, featuring comparable coordination environments, were synthesized. Both systems comprise two {N(SiMe3)2}- leaving groups to minimize the steric influence of the corresponding amidinate ligand. The bimetallic system is based on a bis(amidinate) 4,6-dibenzofuran derivative, while N,N'-bis(2,6-diisopropylphenyl)benzamidinate was employed as ligand for the monometallic catalyst. For the hydroamination/cyclization reaction five different substrates were investigated. Additionally, kinetic studies were carried out to gain deeper understanding of the mechanism.
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Affiliation(s)
- Neda Kazeminejad
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Luca Münzfeld
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Michael T Gamer
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Peter W Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
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