51
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Lai T, Zhang P, Zhao J, Zhang G. Simple and Precision Approach to Polythioimidocarbonates and Hybrid Block Copolymer Derivatives. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tao Lai
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Pengfei Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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52
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Reddi Y, Cramer CJ. Mechanism and Design Principles for Controlling Stereoselectivity in the Copolymerization of CO 2/Cyclohexene Oxide by Indium(III) Phosphasalen Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yernaidu Reddi
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
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53
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Porous Hexacyanometallate(III) Complexes as Catalysts in the Ring-Opening Copolymerization of CO2 and Propylene Oxide. Catalysts 2021. [DOI: 10.3390/catal11121450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this work, six porous hexacyanometallate complexes (Ni3[Co(CN)6]2, Co3[Co(CN)6]2, Fe3[Co(CN)6]2, Ni3[Fe(CN)6]2, Co3[Fe(CN)6]2, Fe4[Fe(CN)6]2) were synthesized by a complexing agent assisted coprecipitation method and thoroughly characterized via X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), in situ high-temperature X-ray diffraction (HT-XRD), elemental analysis (EA), X-ray fluorescence (XRF), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 physisorption, and gas–solid phase titration with NH3. The thermal stability, chemical composition, pore size and volume, crystallite size and density of surface acid sites were strongly sensitive to both the transition metal and the cyanometallate anion employed. On that basis, transition metal hexacyanometallates must be perceived as an adaptable class of zeolite-like microporous materials. The catalytic properties of these compounds were tested by copolymerization of propylene oxide and CO2, a green route to obtain biodegradable aliphatic polycarbonates. All compounds under study showed moderate activity in the target reaction. The obtained copolymers were characterized by modest CO2 content (carbonate units ranging from 16 to 33%), random structure (RPEC ≈ 70%), and moderate molecular weight (Mw = 6000–85,400 g/mol) with broad dispersity values (ĐM = 4.1–15.8).
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54
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Tsao WF, Liu GL, Su YC, Lin CC, Ko BT. Bimetallic Nickel Complexes Containing Benzotriazole-Derived Diamine-Bisphenolate Ligands as Highly Active Catalysts for the Copolymerization of Carbon Dioxide with Cyclohexene Oxide: Synthesis, Catalysis, and Kinetics. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei-Fang Tsao
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Chu-Chieh Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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55
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Luo L, Wang WZ, Wang L, Li LL, Zhang YL, Zhao SD. Copolymerization of CO2, propylene oxide, and itaconic anhydride with double metal cyanide complex catalyst to form crosslinked polypropylene carbonate. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this study, a high-activity Zn–Co double metal cyanide complex was synthesized and used to catalyze the ternary polymerization of carbon dioxide, propylene oxide, and itaconic anhydride to produce a new class of polypropylene carbonates characterized by excellent performance and low ether content. The number average molecular weight of the terpolymer was as high as 2.14 × 105 g·mol−1, and the polydispersity index was as high as 1.58. In the case of PPCIAn3, the 5% weight loss temperature increased by 70°C, the total weight loss temperature increased by 100°C, the tensile strength increased by 6.6 MPa, and the elongation at break decreased to 14.5% with respect to traditional polypropylene carbonate. The apparent efficiency of the catalyst was as high as 45.79 gpolymer/gcatalyst, indicating its high catalytic activity. 1H-NMR spectrometry, gel permeation chromatography, differential scanning calorimetry, thermogravimetric analysis, and in situ Fourier-transform infrared spectroscopy were used to characterize the polymerization process and the structural properties of the obtained terpolymers.
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Affiliation(s)
- Liang Luo
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
| | - Wen-Zhen Wang
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
| | - Li Wang
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
| | - Lei-Lei Li
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
| | - Yi-Le Zhang
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
| | - Sai-Di Zhao
- School of Chemistry and Chemical Engineer, Xi’an Shiyou University , Xi’an 710065 , China
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56
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Gorji ZE, Khodadadi AA, Riahi S, Repo T, Mortazavi Y. Efficient synergistic chemical fixation of CO2 by simple metal-free organocatalysts: Mechanistic and kinetic insights. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.08.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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57
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Tumeli TR, van Wyk JL. Synthesis and characterization of ionic functionalized cobalt and chromium complexes derived from salicylaldimine ligands: Application as catalysts in the coupling of carbon dioxide with propylene oxide. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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58
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Affiliation(s)
- Chao Chen
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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59
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Liu KT, Chuang JY, Jeng RJ, Leung MK. Sustainable Synthesis of Cyclic Carbonates from Terminal Epoxides by a Highly Efficient CaI 2/1,3-Bis[tris(hydroxymethyl)-methylamino]-propane Catalyst. ACS OMEGA 2021; 6:27279-27287. [PMID: 34693148 PMCID: PMC8529664 DOI: 10.1021/acsomega.1c04086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/16/2021] [Indexed: 05/06/2023]
Abstract
The nonstopping increment of atmospheric carbon dioxide (CO2) concentration keeps harming the environment and human life. The traditional concept of carbon capture and storage (CCS) is no longer sufficient and has already been corrected to carbon capture, utilization, and storage (CCUS). CCUS involves significant CO2 utilization, such as cyclic carbonate formation, for its cost effectiveness, less toxicity, and abundant C1 synthon in organic synthesis. However, the high thermodynamic and kinetic stability of CO2 limits its applications. Herein, we report a mild, efficient, and practical catalyst based on abundant, nontoxic CaI2 in conjunction with biocompatible ligand 1,3-bis[tris(hydroxymethyl)-methylamino]-propane (BTP) for CO2 fixation under atmospheric pressure with terminal epoxides to give the cyclic carbonates. The Job plot detected the 1:1 Ca2+/BTP binding stoichiometry. Furthermore, formation of a single crystal of the 1:1 Ca2+/BTP complex was confirmed by single-crystal X-ray crystallography. The bis(cyclic carbonate) products exhibit potentials for components in the non-isocyanate polyurethanes (NIPUs) process. Notably, this protocol shows attractive recyclability and reusability.
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Affiliation(s)
- Kuan-Ting Liu
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jia-Yu Chuang
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ru-Jong Jeng
- Institute
of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced
Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Man-kit Leung
- Department
of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Advanced
Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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60
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Shukla G, Ferrier RC. The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210514] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Geetanjali Shukla
- Department of Chemical Engineering and Materials Science Michigan State University East Lansing Michigan USA
| | - Robert C. Ferrier
- Department of Chemical Engineering and Materials Science Michigan State University East Lansing Michigan USA
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61
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Lining S, Haiyue W, Liying G, Rongrong Z, Lili S, Shuo Z. Preparation and catalytic property of composite ionic liquid immobilized on SBA-15. CAN J CHEM 2021. [DOI: 10.1139/cjc-2021-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this work, we report a more simple and efficient way to synthesize a composite ionic liquid (IL) ([BMIM][Zn2Br5]) by directly coupling the IL with molecular sieves. Two kinds of immobilized catalysts were successfully synthesized: SBA-15-[BMIM][Zn2Br5] and SBA-15-CPTES-[BMIM][Zn2Br5]. The catalysts were used to catalyze the cycloaddition reaction of continuous transformation of CO2 and propylene oxide, and the catalytic performance of catalysts was further studied. Compared with the traditional IL catalysts, the catalysts not only have excellent catalytic performance, but also have a significantly longer service life. This is because the catalysts are formed by a high energy chemical bond of silane between IL catalysts and molecular sieves, which can effectively solve the problem of the loss of IL active components in the catalytic process.
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Affiliation(s)
- Shan Lining
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
| | - Wang Haiyue
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
| | - Guo Liying
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
| | - Zheng Rongrong
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
| | - Shi Lili
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
| | - Zhang Shuo
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
- School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China
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62
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Earth-abundant bimetallic and multimetallic catalysts for Epoxide/CO2 ring-opening copolymerization. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132433] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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63
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Liu Y, He G, Liu Y, Lu X. Enantioselective Resolution Copolymerization of Racemic 2,
3‐Disubstituted
cis
‐Epoxides
with
CO
2
Mediated by Binuclear Cobalt(
III
) Catalyst
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yan‐Lan Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian Liaoning 116024 China
| | - Guang‐Hui He
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian Liaoning 116024 China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian Liaoning 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian Liaoning 116024 China
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64
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Lindeboom W, Fraser DAX, Durr CB, Williams CK. Heterodinuclear Zn(II), Mg(II) or Co(III) with Na(I) Catalysts for Carbon Dioxide and Cyclohexene Oxide Ring Opening Copolymerizations. Chemistry 2021; 27:12224-12231. [PMID: 34133043 PMCID: PMC8456860 DOI: 10.1002/chem.202101140] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Indexed: 12/16/2022]
Abstract
A series heterodinuclear catalysts, operating without co-catalyst, show good performances for the ring opening copolymerization (ROCOP) of cyclohexene oxide and carbon dioxide. The complexes feature a macrocyclic ligand designed to coordinate metals such as Zn(II), Mg(II) or Co(III), in a Schiff base 'pocket', and Na(I) in a modified crown-ether binding 'pocket'. The 11 new catalysts are used to explore the influences of the metal combinations and ligand backbones over catalytic activity and selectivity. The highest performance catalyst features the Co(III)Na(I) combination, [N,N'-bis(3,3'-triethylene glycol salicylidene)-1,2-ethylenediamino cobalt(III) di(acetate)]sodium (7), and it shows both excellent activity and selectivity at 1 bar carbon dioxide pressure (TOF=1590 h-1 , >99 % polymer selectivity, 1 : 10: 4000, 100 °C), as well as high activity at higher carbon dioxide pressure (TOF=4343 h-1 , 20 bar, 1 : 10 : 25000). Its rate law shows a first order dependence on both catalyst and cyclohexene oxide concentrations and a zeroth order for carbon dioxide pressure, over the range 10-40 bar. These new catalysts eliminate any need for ionic or Lewis base co-catalyst and instead exploit the coordination of earth-abundant and inexpensive Na(I) adjacent to a second metal to deliver efficient catalysis. They highlight the potential for well-designed ancillary ligands and inexpensive Group 1 metals to deliver high performance heterodinuclear catalysts for carbon dioxide copolymerizations and, in future, these catalysts may also show promise in other alternating copolymerization and carbon dioxide utilizations.
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Affiliation(s)
- Wouter Lindeboom
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
| | - Duncan A. X. Fraser
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
| | - Christopher B. Durr
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOxfordUK
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65
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Leitner W, Schmitz M. Concluding remarks: Carbon dioxide utilization: where are we now?… and where are we going? Faraday Discuss 2021; 230:413-426. [PMID: 34223853 DOI: 10.1039/d1fd00038a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This publication is reminiscent of the 12 principles of CO2 chemistry as formulated in the first Faraday Discussion on CO2 utilization in 2015. Their visionary significance at the time is brought into context with the current developments in society and industry. "What has changed since then?" and "is our enthusiasm still enough?" are only a few questions that are to be answered in the following from today's perspective. The synergy of the use of carbon dioxide (CCU) with the concepts of green chemistry as well as the connection to the energy sector is demonstrated using selected examples from industry and research.
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Affiliation(s)
- Walter Leitner
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany. and Institut für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
| | - Marc Schmitz
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany. and Institut für Technische und Makromolekulare Chemie (ITMC), RWTH Aachen University, Worringer Weg 2, 52074 Aachen, Germany
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66
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Dai WT, Tsai CY, Su YC, Ko BT. Ionic cobalt complexes derived from an amine-bis(benzotriazole phenolate) ligand as bifunctional catalysts for copolymerization of epoxides and anhydrides. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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67
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Zhao Y, Zhu S, Liao C, Wang Y, Lam JWY, Zhou X, Wang X, Xie X, Tang BZ. Cobalt-Mediated Switchable Catalysis for the One-Pot Synthesis of Cyclic Polymers. Angew Chem Int Ed Engl 2021; 60:16974-16979. [PMID: 34013603 DOI: 10.1002/anie.202106285] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/16/2021] [Indexed: 11/07/2022]
Abstract
A cobalt salen pentenoate complex [salen=(R,R)-N,N'-bis(3,5-di-tertbutylsalicylidene)-1,2-cyclohexanediamine] is rationally designed as the catalyst for the ring-opening copolymerization (ROCOP) of epoxides/anhydrides/CO2 . Via migratory insertion of carbon monoxide (CO) into the Co-O bonds, the ROCOP-active species α-alkene-ω-O-CoIII (salen) can be rapidly and quantitatively transformed into α-alkene-ω-O2 C-CoIII (salen) telechelic linear precursors. Upon dilution of reaction mixtures, the homolytic cleavage of Co-C bonds induced by visible light generates α-alkene acyl radicals that spontaneously undergo intramolecular radical addition to afford organocobalt-functionalized cyclic polyesters and CO2 -based polycarbonates with excellent regioselectivity. The cyclic products can either react with radical scavengers to generate metal-free cyclic polymers or serve as photo-initiators for organometallic-mediated radical polymerization (OMRP) to produce tadpole-shaped copolymers.
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Affiliation(s)
- Yajun Zhao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Shuaishuai Zhu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Can Liao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yong Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Jacky W Y Lam
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Xingping Zhou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
| | - Xiaolin Xie
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
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68
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Zhao Y, Zhu S, Liao C, Wang Y, Lam JWY, Zhou X, Wang X, Xie X, Tang BZ. Cobalt‐Mediated Switchable Catalysis for the One‐Pot Synthesis of Cyclic Polymers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yajun Zhao
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Shuaishuai Zhu
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Can Liao
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Yong Wang
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China
| | - Jacky W. Y. Lam
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China
| | - Xingping Zhou
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry, CAS Changchun 130022 P. R. China
| | - Xiaolin Xie
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Ben Zhong Tang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong P. R. China
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69
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Xing T, Wang Z, Sun Y, He Z, Wang K, Liu Z, Elsegood MRJ, Bedwell EV, Redshaw C. Co‐polymerization of propylene oxide and
CO
2
using early transition metal (groups
IV
and V) metallocalix[
n
]arenes (n = 4, 6, 8). J Appl Polym Sci 2021. [DOI: 10.1002/app.50513] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tian Xing
- Plastics Collaboratory, Department of Chemistry University of Hull Hull UK
| | - Zhong‐Yu Wang
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an China
| | - Yong‐Chang Sun
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an China
| | - Zhen‐Hong He
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an China
| | - Kuan Wang
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an China
| | - Zhao‐Tie Liu
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an China
- School of Chemistry & Chemical Engineering Shaanxi Normal University Xi'an China
| | | | | | - Carl Redshaw
- Plastics Collaboratory, Department of Chemistry University of Hull Hull UK
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70
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Suresh L, Finnstad J, Törnroos KW, Le Roux E. Bis(phenolate)-functionalized N-heterocyclic carbene complexes of oxo- and imido-vanadium(V). Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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71
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Gruszka W, Garden JA. Advances in heterometallic ring-opening (co)polymerisation catalysis. Nat Commun 2021; 12:3252. [PMID: 34059676 PMCID: PMC8167082 DOI: 10.1038/s41467-021-23192-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/12/2021] [Indexed: 11/09/2022] Open
Abstract
Truly sustainable plastics require renewable feedstocks coupled with efficient production and end-of-life degradation/recycling processes. Some of the most useful degradable materials are aliphatic polyesters, polycarbonates and polyamides, which are often prepared via ring-opening (co)polymerisation (RO(CO)P) using an organometallic catalyst. While there has been extensive research into ligand development, heterometallic cooperativity offers an equally promising yet underexplored strategy to improve catalyst performance, as heterometallic catalysts often exhibit significant activity and selectivity enhancements compared to their homometallic counterparts. This review describes advances in heterometallic RO(CO)P catalyst design, highlighting the overarching structure-activity trends and reactivity patterns to inform future catalyst design.
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Affiliation(s)
- Weronika Gruszka
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, UK
| | - Jennifer A Garden
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, UK.
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72
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McGuire TM, Clark EF, Buchard A. Polymers from Sugars and Cyclic Anhydrides: Ring-Opening Copolymerization of a d-Xylose Anhydrosugar Oxetane. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00365] [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)
- Thomas M. McGuire
- Centre for Sustainable and Circular Technologies, Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Ella F. Clark
- Centre for Sustainable and Circular Technologies, Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Antoine Buchard
- Centre for Sustainable and Circular Technologies, Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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73
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Chukanova OM, Bazhenova TA, Sheverdenkina OG, Manakin YV, Yakushev IA, Kornev AB, Sedov IV. Activity of a New Chromium(III) Complex with a Pentadentate (N3O2) Schiff-Base Ligand in the Reaction of Carbon Dioxide with Propylene Oxide. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421030010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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74
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Theoretical Study on Epoxide Ring-opening in CO2/Epoxide Copolymerization Catalyzed by Bifunctional Salen-Type Cobalt(III) Complexes: Influence of Stereoelectronic Factors. Catalysts 2021. [DOI: 10.3390/catal11030328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Propylene oxide (PO) binding and ring-opening reaction with the bifunctional CO2/epoxide copolymerization catalyst, based on the Co(III)-salcy complex including two quaternary ammonium salts with n-butyl substituents (N+-chains) were investigated by Density Functional Theory (DFT) calculations and compared with the model systems without the N+-chains. The importance of the different possible stereoisomers and the stereoselectivity of these processes for (S)- and (R)-enantiomers of PO were considered. To explore the conformational space for the real catalyst, a complex approach, developed previously was applied. The calculations for the model systems directly demonstrate that PO-ring opening proceeds preferentially in trans catalysts’ configuration and no participation of cis-β isomers is viable; nucleophilic attack at the methylene-carbon atom is preferred over that at methine-carbon atom. For the real bifunctional catalyst, with the (S,S)-configuration of cyclohexane, the results indicate a preference of (R)-PO ring-opening over (S)-PO ring-opening (ca. 6:5). Concerning stereoisomers resulting from the orientation of N+-chains in the real catalyst, different groups of structures participate in the ring-opening reaction for (R)-PO, and different for (S)-PO. The high population of nonreactive complexes of (R)-PO may be the key factor responsible for decreasing the activity of the analyzed catalyst in the epoxide ring-opening reaction.
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75
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Yue T, Ren B, Zhang W, Lu X, Ren W, Darensbourg DJ. Randomly Distributed Sulfur Atoms in the Main Chains of CO
2
‐Based Polycarbonates: Enhanced Optical Properties. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012565] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tian‐Jun Yue
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
- DepartmentDepartment of Chemistry Texas A&M University College Station TX 77843 USA
| | - Bai‐Hao Ren
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Wen‐Jian Zhang
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
| | - Wei‐Min Ren
- State Key Laboratory of Fine Chemicals Dalian University of Technology 2 Linggong Road Dalian 116024 China
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76
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Yang GW, Xu CK, Xie R, Zhang YY, Zhu XF, Wu GP. Pinwheel-Shaped Tetranuclear Organoboron Catalysts for Perfectly Alternating Copolymerization of CO 2 and Epichlorohydrin. J Am Chem Soc 2021; 143:3455-3465. [PMID: 33591738 DOI: 10.1021/jacs.0c12425] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The copolymerization of carbon dioxide (CO2) and epoxides to produce aliphatic polycarbonates is a burgeoning technology for the large-scale utilization of CO2 and degradable polymeric materials. Even with the wealth of advancements achieved over the past 50 years on this green technology, many challenges remain, including the use of metal-containing catalysts for polymerization, the removal of the chromatic metal residue after polymerization, and the limited practicable epoxides, especially for those containing electron-withdrawing groups. Herein, we provide kinds of pinwheel-shaped tetranuclear organoboron catalysts for epichlorohydrin/CO2 copolymerization with >99% polymer selectivity and quantitative CO2 uptake (>99% carbonate linkages) under mild conditions (25-40 °C, 25 bar of CO2). The produced poly(chloropropylene carbonate) has the highest molecular weight of 36.5 kg/mol and glass transition temperature of 45.4 °C reported to date. The energy difference (ΔEa = 60.7 kJ/mol) between the cyclic carbonate and polycarbonate sheds light on the robust performance of our metal-free catalyst. Control experiments and density functional theory (DFT) calculations revealed a cyclically sequential copolymerization mechanism. The metal-free feature, high catalytic performance under mild conditions, and no trouble with chromaticity for the produced polymers imply that our catalysts are practical candidates to advance the CO2-based polycarbonates.
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Affiliation(s)
- Guan-Wen Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Cheng-Kai Xu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Rui Xie
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Yao-Yao Zhang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Xiao-Feng Zhu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China
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77
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Su YC, Ko BT. Alternating Copolymerization of Carbon Dioxide with Epoxides Using Highly Active Dinuclear Nickel Complexes: Catalysis and Kinetics. Inorg Chem 2021; 60:852-865. [PMID: 33401910 DOI: 10.1021/acs.inorgchem.0c02902] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel series of well-defined dicarboxylate dinuclear nickel complexes containing benzotriazole based 1,3-diamine-bisphenolate (1,3-DiBTP) ligands were readily synthesized through a one-pot procedure, which were highly active single-component catalysts for copolymerization of CO2 and epoxides. X-ray structural determination of dinickel complexes 1-11 indicates that the DiBTP ligand acted as a N,O,N,N,O,N-hexadentate framework to chelate two nickel atoms, and two carboxylates are nonequivalently coordinated. The best benzoate-bonded dinickel catalyst 6 displayed the effective activity for both high-pressure and 1 atm CO2-copolymerization of cyclohexene oxide (CHO) in a controllable manner. Noteworthily, a high turnover frequency up to 9600 h-1 could be reached at 140 °C and a CO2 pressure of 20.7 bar utilizing a low catalyst loading of 0.01 mol %, and the same copolymerization conditions were capable of producing narrowly dispersed poly(cyclohexene carbonate) (PCHC) having >99% polycarbonate selectivity. In addition to CO2/CHO copolymerization, 4-vinyl-1,2-cyclohexene oxide or cyclopentene oxide was also applied to efficiently copolymerize CO2 under conditions of 80 °C and 20.7 bar initial CO2 pressure. Kinetic studies of CO2/CHO copolymerization catalyzed by 6 were investigated. Such polymerization revealed first-order dependence for both catalyst 6 and CHO concentrations, and the activation energy for PCHC generation by 6 is 57.69 kJ mol-1. A possible polymerization mechanism for CO2-copolymerization of CHO was proposed based on kinetics and structural studies of the obtained polycarbonates.
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Affiliation(s)
- Yu-Chia Su
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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78
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Zhang J, Wang L, Liu S, Kang X, Li Z. A Lewis Pair as Organocatalyst for One-Pot Synthesis of Block Copolymers from a Mixture of Epoxide, Anhydride, and CO 2. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02647] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jinbo Zhang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Lebin Wang
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Shaofeng Liu
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
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79
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Li X, Duan RL, Hu CY, Pang X, Deng MX. Copolymerization of lactide, epoxides and carbon dioxide: a highly efficient heterogeneous ternary catalyst system. Polym Chem 2021. [DOI: 10.1039/d0py01592j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The controlled copolymerization of mixed monomers that usually imparts distinct advantages into single polymer chains and requires a single versatile catalyst remains a key challenge in polymer chemistry.
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Affiliation(s)
- Xiang Li
- Institute of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Ran-long Duan
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Chen-yang Hu
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Ming-xiao Deng
- Institute of Chemistry
- Northeast Normal University
- Changchun
- PR China
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80
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Li X, Hu CY, Duan RL, Liang ZZ, Pang X, Deng MX. Efficient ternary catalyst system for the copolymerization of lactide, epoxides and CO 2: new insights into the cooperative mechanism. Polym Chem 2021. [DOI: 10.1039/d1py00281c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ternary catalyst systems (TCSs) are an emerging type of catalyst for the synthesis of multiblock copolymers of lactide (LA), epoxides and CO2.
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Affiliation(s)
- Xiang Li
- Institute of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Chen-yang Hu
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Ran-long Duan
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Zhuang-zhuang Liang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Ming-xiao Deng
- Institute of Chemistry
- Northeast Normal University
- Changchun
- PR China
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81
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Wang Z, Mu Y. Chiral salenCo( iii) complexes with bulky substituents as catalysts for stereoselective alternating copolymerization of racemic propylene oxide with carbon dioxide and succinic anhydride. Polym Chem 2021. [DOI: 10.1039/d0py01562h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.
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Affiliation(s)
- Zhou Wang
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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82
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Liu GL, Wu HW, Lin ZI, Liao MG, Su YC, Chen CK, Ko BT. Synthesis of functional CO2-based polycarbonates via dinuclear nickel nitrophenolate-based catalysis for degradable surfactant and drug-loaded nanoparticle applications. Polym Chem 2021. [DOI: 10.1039/d0py01755h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Functional CO2-based polycarbonates via efficient catalysis strategies using well-defined dinickel catalysts and their biomedical applications for the synthesis of drug-loaded nanoparticles were reported.
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Affiliation(s)
- Guan-Lin Liu
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Hsin-Wei Wu
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Zheng-Ian Lin
- Department of Materials and Optoelectronic Science
- National Sun Yat-Sen University
- Kaohsiung 80424
- Taiwan
| | - Min-Gan Liao
- Department of Materials and Optoelectronic Science
- National Sun Yat-Sen University
- Kaohsiung 80424
- Taiwan
| | - Yu-Chia Su
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
| | - Chih-Kuang Chen
- Department of Materials and Optoelectronic Science
- National Sun Yat-Sen University
- Kaohsiung 80424
- Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Taiwan
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83
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Yue TJ, Ren BH, Zhang WJ, Lu XB, Ren WM, Darensbourg DJ. Randomly Distributed Sulfur Atoms in the Main Chains of CO 2 -Based Polycarbonates: Enhanced Optical Properties. Angew Chem Int Ed Engl 2020; 60:4315-4321. [PMID: 33180984 DOI: 10.1002/anie.202012565] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/03/2020] [Indexed: 01/08/2023]
Abstract
Polymeric materials possessing both high refractive indices and high Abbe numbers are much in demand for the development of advanced optical devices. However, the synthesis of such functional materials is a challenge because of the trade-off between these two properties. Herein, a synthetic strategy is presented for enhancing the optical properties of CO2 -based polycarbonates by modifying the polymer's topological structure. Terpolymers with thiocarbonate and carbonate units randomly distributed in the polymers' main chain were synthesized via the terpolymerization of cyclohexene oxide with a mixture of CO2 and COS in the presence of metal catalysts, most notably a dinuclear aluminum complex. DFT calculations were employed to explain why different structural sequence were obtained with distinct bimetallic catalysts. Varying the CO2 pressure made it possible to obtain terpolymers with tunable carbonate linkages in the polymer chain. More importantly, optical property studies revealed that terpolymers with comparable thiocarbonate and carbonate units exhibited a refractive index of 1.501 with an enhanced Abbe number as high as 48.6, much higher than the corresponding polycarbonates or polythiocarbonates. Additionally, all terpolymers containing varying thiocarbonate content displayed good thermal properties with Tg >109 °C and Td >260 °C, suggesting little loss in the thermal stability compared to the polycarbonate. Hence, modification of the topological structure of the polycarbonate is an efficient method of obtaining polymeric materials with enhanced optical properties without compromising thermal performance.
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Affiliation(s)
- Tian-Jun Yue
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China.,DepartmentDepartment of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Bai-Hao Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Wen-Jian Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Donald J Darensbourg
- DepartmentDepartment of Chemistry, Texas A&M University, College Station, TX, 77843, USA
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84
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Qu L, Roisnel T, Cordier M, Yuan D, Yao Y, Zhao B, Kirillov E. Rare-Earth Metal Complexes Supported by Polydentate Phenoxy-Type Ligand Platforms: C-H Activation Reactivity and CO 2/Epoxide Copolymerization Catalysis. Inorg Chem 2020; 59:16976-16987. [PMID: 33185443 DOI: 10.1021/acs.inorgchem.0c02112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mono- and dinuclear group 3 metal complexes incorporating polydentate bis(imino)phenoxy {N2O}- and bis(amido)phenoxy {N2O}3- ligands were synthesized by alkane elimination reactions from the tris(alkyl) M(CH2SiMe3)3(THF)2 and M(CH2C6H4-o-NMe2)3 (M = Sc, Y) precursors. Complex 1a-Y was used for the selective C-H activation of 2-phenylpyridine at the 2'-phenyl position affording the corresponding bis(aryl) product 3a-Y, which was found to be reacted reluctantly with weak electrophiles (styrene, imines, hydrosilanes). The mechanism of formation of 3a-Y was established by DFT calculations, which also corroborated high stability of the complex toward insertion of styrene, apparently stemming from the inability to form the corresponding adduct. Copolymerization of cyclohexene oxide and CO2 promoted by 1a-Y (0.1-0.5 mol %) was demonstrated to proceed under mild conditions (toluene, 70 °C, PCO2 = 12 bar) giving polycarbonates with high efficiency (maximal TON of 460) and selectivity (97-99% of carbonate units).
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Affiliation(s)
- Liye Qu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China.,Universite Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35700 Rennes, France
| | - Thierry Roisnel
- Centre de Crystallographie, Universite Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35700 Rennes, France
| | - Marie Cordier
- Centre de Crystallographie, Universite Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35700 Rennes, France
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Dushu Lake Campus, Soochow University, Suzhou 215123, People's Republic of China
| | - Evgueni Kirillov
- Universite Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35700 Rennes, France
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85
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Song X, Wang J, Yang L, Pan H, Zheng B. The transformation strategies between homogeneous and heterogeneous catalysts for the coupling reactions of CO2 and epoxides/olefins. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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86
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Gulzar A, Gulzar A, Ansari MB, He F, Gai S, Yang P. Carbon dioxide utilization: A paradigm shift with CO2 economy. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100013] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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87
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Liu Y, Yu Y, Bao Y, Lu X. Kinetic Study and Nonlinear Phenomenon during the Copolymerization of CO
2
with
meso
‐Epoxides Catalyzed by Various Bimetallic Co
III
Complexes. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000247] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ye Liu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Yan Yu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Yuan‐Ye Bao
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
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88
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Competitive behavior of nitrogen based axial ligands in the oxovanadium(IV)-salen catalyzed sulfoxidation of phenylmercaptoacetic acid. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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89
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Hopmann KH. A Polymer Magician: Professor Charlotte K. Williams. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kathrin H. Hopmann
- Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, UiT The Arctic University of Norway, N-9037 Tromsø, Norway
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90
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Suresh L, Lalrempuia R, B. Ekeli J, Gillis-D’Hamers F, Törnroos KW, Jensen VR, Le Roux E. Unsaturated and Benzannulated N-Heterocyclic Carbene Complexes of Titanium and Hafnium: Impact on Catalysts Structure and Performance in Copolymerization of Cyclohexene Oxide with CO 2. Molecules 2020; 25:E4364. [PMID: 32977466 PMCID: PMC7582562 DOI: 10.3390/molecules25194364] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 01/13/2023] Open
Abstract
Tridentate, bis-phenolate N-heterocyclic carbenes (NHCs) are among the ligands giving the most selective and active group 4-based catalysts for the copolymerization of cyclohexene oxide (CHO) with CO2. In particular, ligands based on imidazolidin-2-ylidene (saturated NHC) moieties have given catalysts which exclusively form polycarbonate in moderate-to-high yields even under low CO2 pressure and at low copolymerization temperatures. Here, to evaluate the influence of the NHC moiety on the molecular structure of the catalyst and its performance in copolymerization, we extend this chemistry by synthesizing and characterizing titanium complexes bearing tridentate bis-phenolate imidazol-2-ylidene (unsaturated NHC) and benzimidazol-2-ylidene (benzannulated NHC) ligands. The electronic properties of the ligands and the nature of their bonds to titanium are studied using density functional theory (DFT) and natural bond orbital (NBO) analysis. The metal-NHC bond distances and bond strengths are governed by ligand-to-metal σ- and π-donation, whereas back-donation directly from the metal to the NHC ligand seems to be less important. The NHC π-acceptor orbitals are still involved in bonding, as they interact with THF and isopropoxide oxygen lone-pair donor orbitals. The new complexes are, when combined with [PPN]Cl co-catalyst, selective in polycarbonate formation. The highest activity, albeit lower than that of the previously reported Ti catalysts based on saturated NHC, was obtained with the benzannulated NHC-Ti catalyst. Attempts to synthesize unsaturated and benzannulated NHC analogues based on Hf invariably led, as in earlier work with Zr, to a mixture of products that include zwitterionic and homoleptic complexes. However, the benzannulated NHC-Hf complexes were obtained as the major products, allowing for isolation. Although these complexes selectively form polycarbonate, their catalytic performance is inferior to that of analogues based on saturated NHC.
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Affiliation(s)
- Lakshmi Suresh
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
| | - Ralte Lalrempuia
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Jonas B. Ekeli
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
| | - Francis Gillis-D’Hamers
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
| | - Karl W. Törnroos
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
| | - Vidar R. Jensen
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
| | - Erwan Le Roux
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway; (L.S.); (R.L.); (J.B.E.); (F.G.-D.); (K.W.T.)
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91
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Patil N, Bhoopathi S, Chidara V, Hadjichristidis N, Gnanou Y, Feng X. Recycling a Borate Complex for Synthesis of Polycarbonate Polyols: Towards an Environmentally Friendly and Cost-Effective Process. CHEMSUSCHEM 2020; 13:5080-5087. [PMID: 32691981 DOI: 10.1002/cssc.202001395] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/12/2020] [Indexed: 06/11/2023]
Abstract
In this investigation, a metal-free process was developed that enables the synthesis of poly(propylene carbonate) (PPC) diols/polyols by copolymerization of CO2 with propylene epoxide (PO) under environmentally friendly and cost-effective conditions. This process implies the recycling of triethylborane and of ammonium salts that both enter in the composition of the initiators used to copolymerize CO2 and PO. In complement to the above approach, a polymeric support, poly(diallyl dimethylammonium chloride), was synthesized and modified to carry ammonium carboxylate salts along its chain. The prepared polymeric initiator was utilized to copolymerize CO2 with PO under heterogeneous conditions. Not only were the polymerization results similar to the samples obtained under homogeneous conditions, but the polymer substrate could easily be recovered by simple filtration. The integrity of the polycarbonate diols/polyols and the recycling process were followed by 1 H and 11 B NMR spectroscopy, gel permeation chromatography, and matrix assisted laser desorption ionization time of flight (MALDI-TOF) MS.
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Affiliation(s)
- Naganath Patil
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Senthil Bhoopathi
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Vamshi Chidara
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
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92
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DMC-Mediated Copolymerization of CO2 and PO—Mechanistic Aspects Derived from Feed and Polymer Composition. Catalysts 2020. [DOI: 10.3390/catal10091066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The influence of composition of liquid phase on composition of poly(propylene ether carbonates) in the copolymerization of CO2 with propylene oxide (PO), mediated by a zinc chloride cobalt double metal cyanide, was monitored by FT-IR/CO2 uptake/size exclusion chromatography in batch and semi-batch mode. The ratio of mol fractions of carbonate to ether linkages F (~0.15) was found virtually independent on the feed between 60 and 120 °C. The presence of CO2 lowers the catalytic activity but yields more narrowly distributed poly(propylene ether carbonates). Hints on diffusion and chemistry-related restrictions were found underlying, broadening the distribution. The incorporation of CO2 seems to proceed in a metal-based insertion chain process, ether linkages are generated stepwise after external nucleophilic attack. The presence of amines resulted in lower activities and no change in F. An exchange of chloride for nitrate in the catalyst led to a higher F of max. 0.45. The observations are interpreted in a mechanistic scheme, comprising surface-base-assisted nucleophilic attack of external weak nucleophiles and of mobile surface-bound carboxylato entities on activated PO in competition to protonation of surface-bound alkoxide intermediates by poly(propylene ether carbonate) glycols or by surface-bound protons. Basic entities on the catalyst may promote CO2 incorporation.
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93
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Fanjul-Mosteirín N, Martín J, Valdés C, Concellón C, del Amo V. Broadening the Scope of Steroidal Scaffolds: The Umpolung of a Bis-Primary Amine Precatalyst for the Insertion of CO 2 into Epoxides. Org Lett 2020; 22:6988-6992. [DOI: 10.1021/acs.orglett.0c02537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noé Fanjul-Mosteirín
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Judith Martín
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Carlos Valdés
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Carmen Concellón
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Vicente del Amo
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, C/Julián Clavería 8, 33006 Oviedo, Spain
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94
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Andrea KA, Kerton FM. Iron-catalyzed reactions of CO2 and epoxides to yield cyclic and polycarbonates. Polym J 2020. [DOI: 10.1038/s41428-020-00395-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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95
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Chukanova OM, Korenkov KO, Garifullin NO, Sheverdenkina OG, Sedov IV. Kinetics of Carbon Dioxide Terpolymerization with Propylene Oxide and Hexene Oxide. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420030088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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96
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97
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Jia M, Zhang D, de Kort GW, Wilsens CHRM, Rastogi S, Hadjichristidis N, Gnanou Y, Feng X. All-Polycarbonate Thermoplastic Elastomers Based on Triblock Copolymers Derived from Triethylborane-Mediated Sequential Copolymerization of CO 2 with Various Epoxides. Macromolecules 2020; 53:5297-5307. [PMID: 32905284 PMCID: PMC7467772 DOI: 10.1021/acs.macromol.0c01068] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/08/2020] [Indexed: 01/29/2023]
Abstract
Various oxirane monomers including alkyl ether or allyl-substituted ones such as 1-butene oxide, 1-hexene oxide, 1-octene oxide, butyl glycidyl ether, allyl glycidyl ether, and 2-ethylhexyl glycidyl ether were anionically copolymerized with CO2 into polycarbonates using onium salts as initiator in the presence of triethylborane. All copolymerizations exhibited a "living" character, and the monomer consumption was monitored by in situ Fourier-transform infrared spectroscopy. The various polycarbonate samples obtained were characterized by 1H NMR, GPC, and differential scanning calorimetry. In a second step, all-polycarbonate triblock copolymers demonstrating elastomeric behavior were obtained in one pot by sequential copolymerization of CO2 with two different epoxides, using a difunctional initiator. 1-Octene oxide was first copolymerized with CO2 to form the central soft poly(octene carbonate) block which was flanked by two external rigid poly(cyclohexene carbonate) blocks obtained through subsequent copolymerization of cyclohexene oxide with CO2. Upon varying the ratio of 1-octene oxide to cyclohexene oxide and their respective ratios to the initiator, three all-polycarbonate triblock samples were prepared with molar masses of about 350 kg/mol and 22, 26, and 29 mol % hard block content, respectively. The resulting triblock copolymers were analyzed using 1H NMR, GPC, thermogravimetric analysis, differential scanning calorimetry, and atomic force microscopy. All three samples demonstrated typical elastomeric behavior characterized by a high elongation at break and ultimate tensile strength in the same range as those of other natural and synthetic rubbers, in particular those used in applications such as tissue engineering.
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Affiliation(s)
- Mingchen Jia
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Dongyue Zhang
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Gijs W. de Kort
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Carolus H. R. M. Wilsens
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Sanjay Rastogi
- Aachen-Maastricht
Institute of Biobased Materials (AMIBM), Maastricht University, P.O. Box 616, Maastricht 6200MD, The
Netherlands
| | - Nikos Hadjichristidis
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Yves Gnanou
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical
Sciences and Engineering Division and KAUST Catalysis Center, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955, Saudi Arabia
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98
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Wang WZ, Lei Z, Jia XG, Li LL, Fan W. A new coordination complex based on 2,2′-dipyridinium ligand as catalyst for the conversion of CO2 to propylene carbonate. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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99
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Zhang B, Li H, Luo H, Zhao J. Ring-opening alternating copolymerization of epichlorohydrin and cyclic anhydrides using single- and two-component metal-free catalysts. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109820] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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100
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Yang GW, Zhang YY, Xie R, Wu GP. Scalable Bifunctional Organoboron Catalysts for Copolymerization of CO2 and Epoxides with Unprecedented Efficiency. J Am Chem Soc 2020; 142:12245-12255. [DOI: 10.1021/jacs.0c03651] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Guan-Wen Yang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yao-Yao Zhang
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rui Xie
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guang-Peng Wu
- MOE Laboratory of Macromolecular Synthesis and Functionalization, Adsorption and Separation Materials and Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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