51
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Jia T, Xu SY, Huang LC, Gao W. Scandium and gadolinium complexes with aryldiimine NCN pincer ligands: Synthesis, characterization, and catalysis on isoprene and 1,5-hexadiene polymerization. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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52
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Wang X, Zhou G, Liu B, Luo Y. Effects of Ligand, Metal, and Solvation on the Structure and Stability of Contact Ion Pairs Relevant to Olefin Polymerization Catalyzed by Rare-Earth-Metal Complexes: A DFT Study. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xingbao Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
- Key Laboratory of Coal Science and Technology (Ministry of Education and Shanxi Province), Training Base of State Key Laboratory of Coal Science and Technology (Jointly Constructed by Shanxi Province and Ministry of Science and Technology), Taiyuan University of Technology, Taiyuan 030024, People’s Republic of China
| | - Guangli Zhou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, 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
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, People’s Republic of China
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53
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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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54
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Yan X, Zhang S, Peng D, Zhang P, Zhi J, Wu X, Wang L, Dong Y, Li X. Cationic half-sandwich rare-earth metal alkyl species catalyzed polymerization and copolymerization of aryl isocyanides possessing polar, bulky, or chiral substituents. Polym Chem 2018. [DOI: 10.1039/c8py00007g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cationic half-sandwich rare-earth metal alkyl species were first used for the coordination–insertion polymerization and copolymerization of aryl isocyanides.
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Affiliation(s)
- Xinwen Yan
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Deqian Peng
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Pengfei Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Junge Zhi
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Xiaolu Wu
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
| | - Lin Wang
- School of Mechatronical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications
- School of Materials Science and Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing
- China
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55
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Ren X, Guo F, Fu H, Song Y, Li Y, Hou Z. Scandium-catalyzed copolymerization of myrcene with ethylene and propylene: convenient syntheses of versatile functionalized polyolefins. Polym Chem 2018. [DOI: 10.1039/c8py00039e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel family of myrcene-based polyolefins and functionalized polyolefins was prepared by the copolymerization of myrcene with ethylene and propylene catalyzed by half-sandwich scandium complexes.
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Affiliation(s)
- Xiaorui Ren
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
| | - Fang Guo
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
| | - Hongran Fu
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
| | - Yunyun Song
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
| | - Yang Li
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
| | - Zhaomin Hou
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116012
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56
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Yu C, Zhang P, Gao F, Zhang S, Li X. A displacement-type fluorescent probe reveals active species in the coordinative polymerization of olefins. Polym Chem 2018. [DOI: 10.1039/c7py01915g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The correct identification of active species is an important prerequisite to study the mechanism of coordinative polymerization of olefins, which can afford important theoretical guidance for the design and synthesis of new organometallic catalysts and high-performance polyolefin materials.
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Affiliation(s)
- Chao Yu
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 10081
- China
| | - Pengfei Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 10081
- China
| | - Fei Gao
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 10081
- China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 10081
- China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 10081
- China
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57
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Luo Y, Ma Y, Hou Z. α-C-H Alkylation of Methyl Sulfides with Alkenes by a Scandium Catalyst. J Am Chem Soc 2017; 140:114-117. [PMID: 29261308 DOI: 10.1021/jacs.7b11245] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The C-H addition of sulfides to alkenes is an atom-efficient route for the functionalization and modification of sulfide compounds through C-C bond formation, but this transformation is highly challenging. We report here the regioselective α-C(sp3)-H addition of a wide range of methyl sulfides to a variety of olefins and dienes by a half-sandwich scandium catalyst. This protocol provides a unique route for the synthesis of diverse sulfide derivatives through C-C bond formation at a sulfur-adjacent carbon atom in a 100% atom efficient fashion.
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Affiliation(s)
- Yong Luo
- Organometallic Chemistry Laboratory, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuanhong Ma
- Organometallic Chemistry Laboratory, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory, RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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58
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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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59
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60
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Syndiotactic polymerization of styrene and copolymerization with ethylene catalyzed by chiral half-sandwich rare-earth metal dialkyl complexes. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2060-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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61
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Yu C, Zhou D, Yan X, Gao F, Zhang L, Zhang S, Li X. Cis-1,4-Polymerization of Isoprene by 1,3-Bis(oxazolinymethylidene)isoindoline-Ligated Rare-Earth Metal Dialkyl Complexes. Polymers (Basel) 2017; 9:E531. [PMID: 30965837 PMCID: PMC6419008 DOI: 10.3390/polym9100531] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 12/23/2022] Open
Abstract
A series of novel chiral nonmetallocene pincer-type rare-earth metal dialkyl complexes bearing the chiral monoanionic tridentate C₂-symmetric 1,3-bis(oxazolinymethylidene)isoindoline (BOXMI-H) ligand (BOXMI)Ln(CH₂SiMe₃)₂ 1⁻3 (1: Ln = Sc, yield = 57%; 2: Ln = Lu, yield = 55%; 3: Ln = Y, yield = 62%) have been prepared in moderate yields via the acid-base reaction between the BOXMI ligand and rare-earth metal tri(trimethylsilylmethyl) complexes. The X-ray diffractions show that both of the complexes 1 and 2 contain one BOXMI ligand and two trimethylsilylmethyl ligands, adopting a distorted trigonal bipyramidal configuration. In the presence of a cocatalyst such as borate and AlR₃, these complexes 1⁻3 exhibit high activities of up to 6.8 × 10⁴ (g of polymer)/(molLn h) and high cis-1,4 selectivities of up to 97% in the polymerization of isoprene in toluene, yielding the cis-1,4-polyisoprenes with heavy molecular weights (Mn of up to 710,000 g/mol) and bimodal molecular weight distributions (Mw/Mn = 2.0⁻4.5).
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Affiliation(s)
- Chao Yu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Dahai Zhou
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Xiangqian Yan
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Fei Gao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Li Zhang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 10081, China.
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62
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Guo F, Jiao N, Jiang L, Li Y, Hou Z. Scandium-Catalyzed Syndiospecific Polymerization of Halide-Substituted Styrenes and Their Copolymerization with Styrene. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01668] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fang Guo
- State Key Laboratory
of Fine Chemicals, Department of Polymer Science and Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
| | - Na Jiao
- State Key Laboratory
of Fine Chemicals, Department of Polymer Science and Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
| | - Lei Jiang
- State Key Laboratory
of Fine Chemicals, Department of Polymer Science and Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
| | - Yang Li
- State Key Laboratory
of Fine Chemicals, Department of Polymer Science and Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
| | - Zhaomin Hou
- State Key Laboratory
of Fine Chemicals, Department of Polymer Science and Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
- Organometallic
Chemistry Laboratory and Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa,
Wako, Saitama 351-0198, Japan
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63
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Yamamoto A, Nishiura M, Yang Y, Hou Z. Cationic Scandium Anisyl Species in Styrene Polymerization Using Anisole and N,N-Dimethyl-o-toluidine as Chain-Transfer Agents. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00526] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Atsushi Yamamoto
- Organometallic
Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Organometallic
Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced
Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yang Yang
- Advanced
Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Organometallic
Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced
Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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64
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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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65
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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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66
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Scandium, yttrium, and ytterbium bisalkyl complexes stabilized by monoanionic amidopyridinate ligands. Russ Chem Bull 2017. [DOI: 10.1007/s11172-016-1623-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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67
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Yang F, Li X. Novel cationic rare earth metal alkyl catalysts for precise olefin polymerization. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28617] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fanzhi Yang
- Advanced Research Institute for Multidisciplinary Science, Beijing Institute of Technology; Haidian Beijing 100081 China
| | - Xiaofang Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; Haidian Beijing 100081 China
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68
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Hu X, Kang X, Zhou G, Wang X, Hou Z, Luo Y. DFT Studies on Isoprene/Ethylene Copolymerization Catalyzed by Cationic Scandium Complexes Bearing Different Ancillary Ligands. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaojie Hu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian Liaoning 116024 China
| | - Xiaohui Kang
- College of Pharmacy; Dalian Medical University; Dalian Liaoning 116044 China
| | - Guangli Zhou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian Liaoning 116024 China
| | - Xingbao Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian Liaoning 116024 China
| | - Zhaomin Hou
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering; Dalian University of Technology; Dalian Liaoning 116024 China
- Organometallic Chemistry Laboratory and 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 Liaoning 116024 China
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69
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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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70
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Tan R, Guo F, Li Y. Copolymerization of propylene with styrene and ethylene by a THF-containing half-sandwich scandium catalyst: efficient synthesis of polyolefins with a controllable styrene content. Polym Chem 2017. [DOI: 10.1039/c6py01665k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel family of multi-block propylene–styrene copolymers with syndiotactic styrene–styrene blocks and random propylene–ethylene–styrene terpolymers with a broad composition range were obtained by using (C5Me4SiMe3)Sc(CH2SiMe3)2(THF).
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Affiliation(s)
- Rui Tan
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Fang Guo
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Yang Li
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
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71
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Tan R, Shi Z, Guo F, He L, Han L, Li Y. The terpolymerization of ethylene and propylene with isoprene via THF-containing half-sandwich scandium catalysts: a new kind of ethylene–propylene–diene rubber and its functionalization. Polym Chem 2017. [DOI: 10.1039/c7py00847c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel family of ethylene–propylene–isoprene terpolymers was prepared by the terpolymerization of ethylene and propylene with isoprene catalyzed by the half-sandwich scandium complexs.
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Affiliation(s)
- Rui Tan
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Zhenghai Shi
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Fang Guo
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Lv He
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Li Han
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Yang Li
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
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72
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Chen H, Pan W, Huang KW, Zhang X, Gong D. Controlled polymerization of isoprene promoted by a type of hemilabile XPN3 (X = O, S) ligand supported cobalt(ii) complexes: the role of a hemilabile donor on the level of control. Polym Chem 2017. [DOI: 10.1039/c7py00252a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cobalt dichloride complexes (Co1–Co9) carrying a novel type of hemilabile donor PN3 (L1–L3) or XPN3 (L4–L6, X = O; L7–L9, X = S) are reported as precursors for controlled polymerization of isoprene.
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Affiliation(s)
- Huafeng Chen
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Weijing Pan
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Kuo-Wei Huang
- Division of Physical Sciences and Engineering and KAUST Catalysis Centre
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Xuequan Zhang
- Key Laboratory of Synthetic Rubber
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Dirong Gong
- Faculty of Materials Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
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73
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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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74
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Geng J, Sun Y, Hua J. 1,2- and 3,4-rich polyisoprene synthesized by Mo(VI)-based catalyst with phosphorus ligand. POLYMER SCIENCE SERIES B 2016. [DOI: 10.1134/s1560090416050043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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75
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Nako AE, Oyamada J, Nishiura M, Hou Z. Scandium-catalysed intermolecular hydroaminoalkylation of olefins with aliphatic tertiary amines. Chem Sci 2016; 7:6429-6434. [PMID: 28451099 PMCID: PMC5356020 DOI: 10.1039/c6sc02129h] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 07/03/2016] [Indexed: 12/25/2022] Open
Abstract
A homoleptic scandium trialkyl complex in combination with a borate compound served as an excellent catalyst for the C–H addition of aliphatic tertiary amines to various olefins.
A homoleptic scandium trialkyl complex in combination with a borate compound served as an excellent catalyst for the C–H addition of aliphatic tertiary amines to olefins. This highly regiospecific, 100% atom efficient C–H bond alkylation reaction was applicable to a wide variety of tertiary amines and olefins, including functionalised styrenes and unactivated α-olefins. This work represents the first example of rare-earth catalysed olefin hydroaminoalkylation and also the first example of catalytic C–H addition of aliphatic tertiary amines to olefins with any catalyst.
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Affiliation(s)
- Adi E Nako
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , 2-1 Hirosawa, Wako , Saitama , 351-0198 , Japan .
| | - Juzo Oyamada
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , 2-1 Hirosawa, Wako , Saitama , 351-0198 , Japan .
| | - Masayoshi Nishiura
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , 2-1 Hirosawa, Wako , Saitama , 351-0198 , Japan .
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , 2-1 Hirosawa, Wako , Saitama , 351-0198 , Japan .
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76
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Xu TQ, Liu JH, Liu Y. Half-metallocene complexes of yttrium with amidinate ligands: Monoalkyl yttrium formation and C–H bond activation. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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77
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Shi X, Nishiura M, Hou Z. C–H Polyaddition of Dimethoxyarenes to Unconjugated Dienes by Rare Earth Catalysts. J Am Chem Soc 2016; 138:6147-50. [DOI: 10.1021/jacs.6b03859] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaochao Shi
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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78
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Song G, Luo G, Oyamada J, Luo Y, Hou Z. ortho-Selective C-H addition of N, N-dimethyl anilines to alkenes by a yttrium catalyst. Chem Sci 2016; 7:5265-5270. [PMID: 30155176 PMCID: PMC6020524 DOI: 10.1039/c6sc00833j] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 04/26/2016] [Indexed: 11/21/2022] Open
Abstract
The efficient and selective ortho-alkylation of N,N-dimethyl anilines via C-H addition to alkenes was achieved for the first time using a cationic half-sandwich yttrium catalyst. This protocol constitutes a straightforward and atom-economical route for the synthesis of a new family of tertiary aniline derivatives with branched alkyl substituents, which are otherwise difficult to obtain. DFT calculation studies suggest that the interaction between the yttrium atom and the NMe2 group plays an important role and the intramolecular C-H activation through a σ-bond metathesis pathway is the rate-determining step, which is consistent with the experimental KIE observations.
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Affiliation(s)
- Guoyong Song
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , Wako , Saitama 351-0198 , Japan . .,Beijing Key Laboratory of Lignocellulosic Chemistry , Beijing Forestry University , Beijing 100083 , China
| | - Gen Luo
- State Key Laboratory of Fine Chemicals , School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian 116024 , China .
| | - Juzo Oyamada
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , Wako , Saitama 351-0198 , Japan .
| | - Yi Luo
- State Key Laboratory of Fine Chemicals , School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian 116024 , China .
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory and RIKEN Center for Sustainable Resource Science , RIKEN , Wako , Saitama 351-0198 , Japan . .,State Key Laboratory of Fine Chemicals , School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian 116024 , China .
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79
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Yamamoto A, Nishiura M, Oyamada J, Koshino H, Hou Z. Scandium-Catalyzed Syndiospecific Chain-Transfer Polymerization of Styrene Using Anisoles as a Chain Transfer Agent. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00083] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Atsushi Yamamoto
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255
Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Masayoshi Nishiura
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Juzo Oyamada
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hiroyuki Koshino
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department
of Chemistry, Graduate School of Science and Engineering, Saitama University, 255
Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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80
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Liu K, Ren L, He Q, Xu WJ. Synthesis of Copolymers by Living Carbanionic Alternating Copolymerization. Macromol Rapid Commun 2016; 37:752-8. [PMID: 26987993 DOI: 10.1002/marc.201600009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 02/01/2016] [Indexed: 01/23/2023]
Abstract
The synthesis and characterization of copolymers from styrene and 1,3-pentadiene (two isomers) are reported. Styrene/1,3-pentadiene (1:1) copolymerization with carbanion initiator yield living, well-defined, alternating (r1 = 0.037, r2 = 0.056), and highly stereoregular copolymers with 90%-100% trans-1,4 units, designed Mn s and low ÐM s (1.07-1.17). The first-order kinetic resolution and NMR spectra demonstrate that the copolymers obtained possess strictly alternating structure containing both 1,4- and 4,1-enchaiments. Also a series of copolymers with varying degrees of alternation are synthesized from para-alkyl substituted styrene derivatives and 1,3-pentadiene. The degree of alternation is strongly dependent on the polarity of solvent, reaction temperature, type of trans-cis isomer of 1,3-pentadiene and para-substituted group in styrene. The macro zwitterion forms (SPC) through the distribution of electronic charges from the donor (1,3-pentadiene) to the acceptor (styrenes) are proposed to interpret the carbanion alternating copolymerization mechanism. Owing to the versatility of the carbanion-initiating reaction, the present alternating strategy based on 1,3-pentadiene (especially cis isomer) can serve as a powerful tool for precise control of polymer chain microstructure, architecture, and functionalities in one-pot polymerization.
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Affiliation(s)
- Kun Liu
- Country State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Lei Ren
- Country State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Qing He
- Country State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Wei Jian Xu
- Country State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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81
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Kang X, Zhou G, Wang X, Qu J, Hou Z, Luo Y. Alkyl Effects on the Chain Initiation Efficiency of Olefin Polymerization by Cationic Half-Sandwich Scandium Catalysts: A DFT Study. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00081] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xiaohui Kang
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
- CAS Key Lab of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, People’s Republic of China
| | - Guangli Zhou
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Xingbao Wang
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jingping Qu
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Zhaomin Hou
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
- Organometallic
Chemistry Laboratory and Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yi Luo
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
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82
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Highly Active and Isospecific Styrene Polymerization Catalyzed by Zirconium Complexes Bearing Aryl-substituted [OSSO]-Type Bis(phenolate) Ligands. Polymers (Basel) 2016; 8:polym8020031. [PMID: 30979125 PMCID: PMC6432521 DOI: 10.3390/polym8020031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 11/18/2022] Open
Abstract
[OSSO]-type dibenzyl zirconium(IV) complexes 9 and 10 possessing aryl substituents ortho to the phenoxide moieties (ortho substituents, phenyl and 2,6-dimethylphenyl (Dmp)) were synthesized and characterized. Upon activation with dMAO (dried methylaluminoxane), complex 9 was found to promote highly isospecific styrene polymerizations ([mm] = 97.5%–99%) with high molecular weights Mw up to 181,000 g·mmol−1. When the Dmp-substituted pre-catalyst 10/dMAO system was used, the highest activity, over 7700 g·mmol(10)−1·h−1, was recorded involving the formation of precisely isospecific polystyrenes of [mm] more than 99%.
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83
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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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84
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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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85
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Wang C, Zhou J, Zhao X, Maron L, Leng X, Chen Y. Non-Pincer-Type Mononuclear Scandium Alkylidene Complexes: Synthesis, Bonding, and Reactivity. Chemistry 2015; 22:1258-61. [DOI: 10.1002/chem.201504725] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Chen Wang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Jiliang Zhou
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Xuefei Zhao
- LPCNO, CNRS & INSA; Université Paul Sabatier; 135 Avenue de Rangueil 31077 Toulouse France
| | - Laurent Maron
- LPCNO, CNRS & INSA; Université Paul Sabatier; 135 Avenue de Rangueil 31077 Toulouse France
| | - Xuebing Leng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Yaofeng Chen
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
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86
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Bienfait AM, Wolf BM, Törnroos KW, Anwander R. Ln(II)/Pb(II)–Ln(III)/Pb(0) Redox Approach toward Rare-Earth-Metal Half-Sandwich Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00837] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- André M. Bienfait
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Benjamin M. Wolf
- Institut
für Anorganische Chemie, Universität Tübingen, Auf
der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Karl W. Törnroos
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Reiner Anwander
- Institut
für Anorganische Chemie, Universität Tübingen, Auf
der Morgenstelle 18, D-72076 Tübingen, Germany
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87
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Zhang G, Wang S, Zhou S, Wei Y, Guo L, Zhu X, Zhang L, Gu X, Mu X. Synthesis and Reactivity of Rare-Earth-Metal Monoalkyl Complexes Supported by Bidentate Indolyl Ligands and Their High Performance in Isoprene 1,4-cis Polymerization. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00467] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guangchao Zhang
- 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, Anhui 241000, People’s Republic of 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, Anhui 241000, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
| | - Shuangliu Zhou
- 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, Anhui 241000, People’s Republic of China
| | - Yun Wei
- 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, Anhui 241000, People’s Republic of China
| | - Liping 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, Anhui 241000, People’s Republic of China
| | - 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, Anhui 241000, People’s Republic of China
| | - Lijun Zhang
- 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, Anhui 241000, People’s Republic of China
| | - Xiaoxia Gu
- 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, Anhui 241000, People’s Republic of China
| | - Xiaolong Mu
- 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, Anhui 241000, People’s Republic of China
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88
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Nishiura M, Guo F, Hou Z. Half-sandwich rare-earth-catalyzed olefin polymerization, carbometalation, and hydroarylation. Acc Chem Res 2015. [PMID: 26214733 DOI: 10.1021/acs.accounts.5b00219] [Citation(s) in RCA: 267] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The search for new catalysts for more efficient, selective chemical transformations and for the synthesis of new functional materials has been a long-standing research subject in both academia and industry. To develop new generations of catalysts that are superior or complementary to the existing ones, exploring the potential of untapped elements is an important strategy. Rare-earth elements, including scandium, yttrium, and the lanthanides (La-Lu), constitute one important frontier in the periodic table. Rare-earth elements possess unique chemical and physical properties that are different from those of main-group and late-transition metals. The development of rare-earth-based catalysts by taking the advantage of these unique properties is of great interest and importance. The most stable oxidation state of rare-earth metals is 3+, which is difficult to change under many reaction conditions. The oxidative addition and reductive elimination processes often observed in catalytic cycles involving late transition metals are generally difficult in the case of rare-earth complexes. The 18-electron rule that is applicable to late-transition-metal complexes does not fit rare-earth complexes, whose structures are mainly governed by the sterics (rather than the electron numbers) of the ligands. In the lanthanide series (La-Lu), the ionic radius gradually decreases with increasing atomic number because of the influence of the 4f electrons, which show poor shielding of nuclear charge. Rare-earth metal ions generally show strong Lewis acidity and oxophilicity. Rare-earth metal alkyl and hydride species are highly reactive, showing both nucleophilicity and basicity. The combination of these features, such as the strong nucleophilicity and moderate basicity of the alkyl and hydride species and the high stability, strong Lewis acidity, and unsaturated C-C bond affinity of the 3+ metal ions, can make rare-earth metals unique candidates for the formation of excellent single-site catalysts. This Account is intended to give an overview of our recent studies on organo rare-earth catalysis, in particular the synthesis and application of half-sandwich rare-earth alkyl complexes bearing monocyclopentadienyl ligands for olefin polymerization, carbometalation, and hydroarylation. Treatment of half-sandwich rare-earth dialkyl complexes having the general formula CpMR2 with an equimolar amount of an appropriate borate compound such as [Ph3C][B(C6F5)4] can generate the corresponding cationic monoalkyl species, which serve as excellent single-site catalysts for the polymerization and copolymerization of a wide range of olefin monomers such as ethylene, 1-hexene, styrene, conjugated and nonconjugated dienes, and cyclic olefins. The cationic half-sandwich rare-earth alkyl complexes can also catalyze the regio- and stereoselective alkylative alumination of alkenes and alkynes through insertion of the unsaturated C-C bond into the metal-alkyl bond followed by transmetalation between the resulting new alkyl or alkenyl species and an alkylaluminum compound. Moreover, a combination of deprotonative C-H bond activation of appropriate organic compounds such as anisoles and pyridines by the rare-earth alkyl species and insertion of alkenes into the resulting new metal-carbon bond can lead to catalytic C-H bond alkylation of the organic substrates. Most of these transformations are unique to the rare-earth catalysts with selectivity and functional group tolerance different from those of late-transition-metal catalysts.
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Affiliation(s)
- Masayoshi Nishiura
- Organometallic
Chemistry Laboratory and Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Fang Guo
- The
State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
| | - Zhaomin Hou
- Organometallic
Chemistry Laboratory and Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- The
State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China
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89
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Du G, Xue J, Peng D, Yu C, Wang H, Zhou Y, Bi J, Zhang S, Dong Y, Li X. Copolymerization of isoprene with ethylene catalyzed by cationic half-sandwich fluorenyl scandium catalysts. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gaixia Du
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Jiaping Xue
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Deqian Peng
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Chao Yu
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Hanghang Wang
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Yuening Zhou
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Jiaojiao Bi
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Shaowen Zhang
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Yuping Dong
- School of Material Science and Engineering; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
| | - Xiaofang Li
- Department of Chemistry, Key Laboratory of Cluster Science of Ministry of Education; Beijing Institute of Technology; 5 South Zhongguancun Street Haidian District Beijing 100081 China
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90
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Guo L, Zhu X, Zhang G, Wei Y, Ning L, Zhou S, Feng Z, Wang S, Mu X, Chen J, Jiang Y. Synthesis and Characterization of Organo-Rare-Earth Metal Monoalkyl Complexes Supported by Carbon σ-Bonded Indolyl Ligands: High Specific Isoprene 1,4-Cis Polymerization Catalysts. Inorg Chem 2015; 54:5725-31. [DOI: 10.1021/acs.inorgchem.5b00308] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Shaowu Wang
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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91
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Wang X, Leng X, Chen Y. Mono(boratabenzene) rare-earth metal dialkyl complexes: synthesis, structure and catalytic behaviors for styrene polymerization. Dalton Trans 2015; 44:5771-6. [PMID: 25714489 DOI: 10.1039/c4dt04043k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four mono(boratabenzene) rare-earth metal dialkyl complexes, [(3,5-Me2-C5H3BR)Ln(CH2SiMe3)2(THF)] (1: R = NEt2, Ln = Sc; 2: R = NEt2, Ln = Lu; 3: R = Ph, Ln = Sc; 4: R = Ph, Ln = Lu), were synthesized efficiently via a one-pot strategy with Li[3,5-Me2-C5H3BR] (R = NEt2, Ph), LnCl3(THF)x (Ln = Sc, x = 3; Ln = Lu, x = 0), and LiCH2SiMe3. The solid-state structures of 1 and 2 were determined by single-crystal X-ray diffraction. Variable-temperature NMR studies indicated that the energy barrier for the rotation of aminoboratabenzene in 1 (ΔG‡ ≈ 71 kJ mol−1) is higher than that of phenylboratabenzene in 3 (ΔG‡ ≈ 59 kJ mol−1). These mono(boratabenzene) rare-earth metal dialkyl complexes’ catalytic behaviors for styrene polymerization were investigated, and found that mono(boratabenzene) scandium dialkyl complexes show high catalytic activities for syndiotactic polymerization upon activation with cocatalysts.
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Affiliation(s)
- Xiufang Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People's Republic of China.
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92
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Song G, Wang B, Nishiura M, Hou Z. Catalytic CH Bond Addition of Pyridines to Allenes by a Rare-Earth Catalyst. Chemistry 2015; 21:8394-8. [DOI: 10.1002/chem.201501121] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Indexed: 01/04/2023]
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93
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Du G, Long Y, Xue J, Zhang S, Dong Y, Li X. 1,4-Selective Polymerization of 1,3-Cyclohexadiene and Copolymerization with Styrene by Cationic Half-Sandwich Fluorenyl Rare Earth Metal Alkyl Catalysts. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00037] [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)
| | - Yingyun Long
- State Key Laboratory of Polymer Physics and Chemistry,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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94
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Chen R, Yao C, Wang M, Xie H, Wu C, Cui D. Synthesis of Heterocyclic-Fused Cyclopentadienyl Scandium Complexes and the Catalysis for Copolymerization of Ethylene and Dicyclopentadiene. Organometallics 2015. [DOI: 10.1021/om500992v] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Runhai Chen
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- School
of Chemical Engineering, Shandong University of Technology, Zibo 255049, People’s Republic of China
| | - 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
| | - Meiyan Wang
- Institute
of Theoretical Chemistry, State Key Laboratory of Theoretical and
Computational Chemistry, Jilin University, Changchun 130022, China
| | - Hongyan Xie
- 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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95
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Shima T, Yanagi T, Hou Z. Rare-earth–iridium heterobimetallic complexes with bridging imido and silylmethyl ligands: synthesis, structure and reactivity. NEW J CHEM 2015. [DOI: 10.1039/c5nj00598a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of [(C5Me5)IrNtBu] with [(C5Me4R)Ln(CH2SiMe3)2(THF)] (Ln = Lu, Sc; R = Me, SiMe3) afforded novel heterometallic rare earth–iridium imido complexes, which show unique structural features and reactivities.
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Affiliation(s)
- Takanori Shima
- Organometallic Chemistry Laboratory
- RIKEN
- Wako
- Japan
- Advanced Catalysis Research Group
| | | | - Zhaomin Hou
- Organometallic Chemistry Laboratory
- RIKEN
- Wako
- Japan
- Advanced Catalysis Research Group
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96
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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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97
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Jende LN, Hollfelder CO, Maichle-Mössmer C, Anwander R. Rare-Earth-Metal Allyl Complexes Supported by the [2-(N,N-Dimethylamino)ethyl]tetramethylcyclopentadienyl Ligand: Structural Characterization, Reactivity, and Isoprene Polymerization. Organometallics 2014. [DOI: 10.1021/om500725g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lars N. Jende
- Institut
für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Christoph O. Hollfelder
- Institut
für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Cäcilia Maichle-Mössmer
- Institut
für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Reiner Anwander
- Institut
für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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98
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Zhang G, Wei Y, Guo L, Zhu X, Wang S, Zhou S, Mu X. Dinuclear Rare-Earth Metal Alkyl Complexes Supported by Indolyl Ligands in μ-η2:η1:η1Hapticities and their High Catalytic Activity for Isoprene 1,4-cis-Polymerization. Chemistry 2014; 21:2519-26. [DOI: 10.1002/chem.201405179] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Indexed: 11/08/2022]
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99
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Liu B, Li L, Sun G, Liu J, Wang M, Li S, Cui D. 3,4-Polymerization of Isoprene by Using NSN- and NPN-Ligated Rare Earth Metal Precursors: Switching of Stereo Selectivity and Mechanism. Macromolecules 2014. [DOI: 10.1021/ma501085c] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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
| | - Lei Li
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
| | - Guangping Sun
- Key
Laboratory of Automobile Materials of Ministry of Education, Department
of Materials Science and Engineering, Jilin University, Changchun, 130025, China
| | - Jingyao Liu
- Institute
of Theoretical Chemistry, State Key Laboratory of Theoretical and
Computational Chemistry, Jilin University, Changchun 130022, China
| | - Meiyan Wang
- Institute
of Theoretical Chemistry, State Key Laboratory of Theoretical and
Computational Chemistry, 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
| | - 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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100
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Kang X, Luo Y, Zhou G, Wang X, Yu X, Hou Z, Qu J. Theoretical Mechanistic Studies on the trans-1,4-Specific Polymerization of Isoprene Catalyzed by a Cationic La–Al Binuclear Complex. Macromolecules 2014. [DOI: 10.1021/ma500988s] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xiaohui Kang
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
| | - Yi Luo
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
| | - Guangli Zhou
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xingbao Wang
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xuerong Yu
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
| | - Zhaomin Hou
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
- RIKEN
Center for Sustainable Resource Science, Organometallic Chemistry
Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jingping Qu
- State
Key Laboratory of Fine Chemicals, School of Pharmaceutical Science
and Technology, Dalian University of Technology, Dalian 116024, China
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