1
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McQuade J, Jäkle F. Tris(pyridyl)borates: an emergent class of versatile and robust polydentate ligands for catalysis and materials applications. Dalton Trans 2023; 52:10278-10285. [PMID: 37462446 DOI: 10.1039/d3dt01665j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Tridentate ligands that incorporate pyridyl rather than pyrazolyl groups are emerging as an attractive class of "scorpionate"-type ligands with enhanced electron donation, increased stability, and divergent geometry at the metal centre relative to tris(pyrazolyl)borates originally introduced by Trofimenko. Following our initial reports, the tris(pyridyl)borate (Tpyb) ligand architecture has been adopted by several research groups in pursuit of functional metal complexes that offer new opportunities in catalysis and materials science. While earlier work had been focused on symmetric octahedral complexes, ML2, which are advantageous as highly robust building blocks in materials sciences, recently introduced new ligand designs provide access to heteroleptic metal complexes with vacant sites that lend themselves to applications in catalysis. Signficant progress has also been made in the post-complexation functionalization of these ligands via electrophilic and nucleophilic substitution reactions at the boron centres, opening up new routes for integration of Tpyb complexes with diverse functional materials while also raising interesting mechanistic questions.
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Affiliation(s)
- James McQuade
- Department of Chemistry, Rutgers University Newark, 73 Warren Street, Newark, New Jersey 07102, USA.
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, 73 Warren Street, Newark, New Jersey 07102, USA.
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2
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Zhang CL, Zhou T, Li YQ, Lu X, Guan YB, Cao YC, Cao GP. Microenvironment Modulation of Metal-Organic Frameworks (MOFs) for Coordination Olefin Oligomerization and (co)Polymerization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205898. [PMID: 36534903 DOI: 10.1002/smll.202205898] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/26/2022] [Indexed: 06/17/2023]
Abstract
The majority of commercial polyolefins are produced by coordination polymerization using early or late transition metal catalysts. Molecular catalysts containing these transition metals (Ti, Zr, Cr, Ni, and Fe, etc.) are loaded on supports for controlled polymerization behavior and polymer morphology in slurry or gas phase processes. Within the last few years, metal-organic frameworks (MOFs), a class of unique porous crystalline materials constructed from metal ions/clusters and organic ligands, have been designed and utilized as excellent supports for heterogeneous polymerization catalysis whose high density and uniform distribution of active sites would benefit the modulations of molecular weight distributions of high-performance olefin oligomers and (co)polymers. Impressive efforts have been made to modulate the microenvironment surrounding the active centers at the atomic level for improved activities of MOFs-based catalysts and controlled selectivity of olefin insertion. This review aims to draw a comprehensive picture of MOFs for coordination olefin oligomerization and (co)polymerization in the past decades with respect to different transition metal active centers, various incorporation sites, and finally microenvironment modulation. In consideration of more efforts are needed to overcome challenges for further industrial and commercial application, a brief outlook is provided.
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Affiliation(s)
- Chuan-Lei Zhang
- Anhui Ultra High Molecular Weight Polyethylene Fiber Engineering Research Center, AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Key Laboratory of Functional Coordination Compounds of Anhui Higher Education Institutes, Anqing Normal University, Anqing, 261433, P. R. China
| | - Tao Zhou
- Anhui Ultra High Molecular Weight Polyethylene Fiber Engineering Research Center, AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Key Laboratory of Functional Coordination Compounds of Anhui Higher Education Institutes, Anqing Normal University, Anqing, 261433, P. R. China
| | - Yong-Qing Li
- UNILAB, State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins, Shanghai Research Institute of Chemical Industry Co., Ltd, Shanghai, 200062, P. R. China
| | - Xin Lu
- Anhui Ultra High Molecular Weight Polyethylene Fiber Engineering Research Center, AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Key Laboratory of Functional Coordination Compounds of Anhui Higher Education Institutes, Anqing Normal University, Anqing, 261433, P. R. China
| | - Ye-Bin Guan
- Anhui Ultra High Molecular Weight Polyethylene Fiber Engineering Research Center, AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Key Laboratory of Functional Coordination Compounds of Anhui Higher Education Institutes, Anqing Normal University, Anqing, 261433, P. R. China
| | - Yu-Cai Cao
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins, Shanghai Research Institute of Chemical Industry Co., Ltd, Shanghai, 200062, P. R. China
| | - Gui-Ping Cao
- UNILAB, State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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3
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Qian J, Comito RJ. A Robust Vanadium(V) Tris(2-pyridyl)borate Catalyst for Long-Lived High-Temperature Ethylene Polymerization. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00334] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Qian
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Room 112, Houston, Texas 77204-5003, United States
| | - Robert J. Comito
- Department of Chemistry, University of Houston, 3585 Cullen Boulevard, Room 112, Houston, Texas 77204-5003, United States
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4
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Yi J, Nakatani N, Nomura K. Solution XANES and EXAFS analysis of active species of titanium, vanadium complex catalysts in ethylene polymerisation/dimerisation and syndiospecific styrene polymerisation. Dalton Trans 2020; 49:8008-8028. [PMID: 32432279 DOI: 10.1039/d0dt01139h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mechanistic studies in homogeneous catalysis through the solution transition metal K Edge XANES (X-ray absorption near-edge structure) and EXAFS (Extended X-ray absorption fine structure) analysis for vanadium and titanium complex catalysts for ethylene polymerisation/dimerization, and syndiospecific styrene polymerisation, including interpretation of the XANES spectra, have been introduced. The core excitation spectra of the complexes based on the time-dependent density functional theory (TD-DFT) can be used to interpret the Ti and V K-edge features and to extract information on the electronic structure from the XANES spectra. Theoretical calculations and experimental XAS analysis should have great potential for analysing the active species.
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Affiliation(s)
- Jun Yi
- Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan.
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5
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Yi J, Nakatani N, Nomura K, Hada M. Time-dependent DFT study of the K-edge spectra of vanadium and titanium complexes: effects of chloride ligands on pre-edge features. Phys Chem Chem Phys 2020; 22:674-682. [DOI: 10.1039/c9cp05891e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
X-ray absorption near edge structures (XANES) of vanadium and titanium complexes were investigated with time-dependent density functional theory (TDDFT).
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Affiliation(s)
- Jun Yi
- Department of Chemistry
- Faculty and Graduate School of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Naoki Nakatani
- Department of Chemistry
- Faculty and Graduate School of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Kotohiro Nomura
- Department of Chemistry
- Faculty and Graduate School of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Masahiko Hada
- Department of Chemistry
- Faculty and Graduate School of Science
- Tokyo Metropolitan University
- Hachioji
- Japan
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6
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Solution X-Ray Absorption Spectroscopy (XAS) for Analysis of Catalytically Active Species in Reactions with Ethylene by Homogeneous (Imido)vanadium(V) Complexes—Al Cocatalyst Systems. Catalysts 2019. [DOI: 10.3390/catal9121016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Solution V K-edge XANES (X-ray absorption near edge structure) and EXAFS (extended X-ray absorption fine structure) analysis of vanadium(V) complexes containing both imido ligands and anionic ancillary donor ligands (L) of type, V(NR)(L)X2 (R = Ar, Ad (1-adamantyl); Ar = 2,6-Me2C6H3; X = Cl, Me, L = 2-(ArNCH2)C5H4N, OAr, WCA-NHC, and 2-(2’-benzimidazolyl)pyridine; WCA-NHC = anionic NHCs containing weak coordinating B(C6F5)3), which catalyze ethylene dimerization and/or polymerization in the presence of Al cocatalysts, has been explored. Different catalytically actives species with different oxidation states were formed depending upon the Al cocatalyst (MAO, Me2AlCl, AliBu3, etc.) and the anionic ancillary donor ligand employed. The method is useful for obtainment of the direct information of the active species (oxidation state, basic framework around the centered metal) in solution, and for better understanding in catalysis mechanism and organometallic as well as coordination chemistry.
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7
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Nomura K, Nagai G, Izawa I, Mitsudome T, Tamm M, Yamazoe S. XAS Analysis of Reactions of (Arylimido)vanadium(V) Dichloride Complexes Containing Anionic NHC That Contains a Weakly Coordinating B(C 6F 5) 3 Moiety (WCA-NHC) or Phenoxide Ligands with Al Alkyls: A Potential Ethylene Polymerization Catalyst with WCA-NHC Ligands. ACS OMEGA 2019; 4:18833-18845. [PMID: 31737845 PMCID: PMC6854829 DOI: 10.1021/acsomega.9b02828] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
(Arylimido)vanadium(V) dichloride complexes containing anionic N-heterocyclic carbene (NHC) ligands that contain weakly coordinating B(C6F5)3 moieties (WCA-NHC) of the type [V(NAr)Cl2(WCA-NHC-Ar')] (5, Ar = 2,6-Me2C6H3, Ar' = 2,6- i Pr2C6H3) showed significant catalytic activity for ethylene polymerization in the presence of Al cocatalysts (MAO and Al i Bu3); the activity by the 5-MAO catalyst (19 500 kg-PE/mol-V·h; TOF 11 600 min-1) is the highest among those reported using the other (imido)vanadium(V) complexes in the presence of MAO, and the 5-Al i Bu3 catalyst showed higher activity (66 000 kg-PE/mol-V·h; TOF 39 200 min-1). The V K-edge X-ray absorption near-edge structure (XANES) analyses (in toluene) strongly suggest the formation of certain vanadium(III) species by reduction with Al i Bu3 accompanying structural changes; the EXAFS analysis suggests the presence of the arylimido ligand and one V-Cl bond (2.34 ± 0.04 Å), which is longer than those [2.1901(8)-2.2462(8) Å] in the reported (imido)vanadium(V) complexes. The XANES analysis of [V(NAr)Cl2(OAr)] strongly suggests the formation of the other vanadium(III) species by reduction with Me2AlCl or Et2AlCl, and the EXAFS analysis suggests the presence of the arylimido ligand and two V-Cl bonds (2.45 ± 0.03 Å). The XANES spectra showed no significant changes in both the pre-edge peak(s) and the edge peak when these complexes were treated with MAO, suggesting that the basic geometry and the high oxidation state were preserved under these conditions.
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Affiliation(s)
- Kotohiro Nomura
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Go Nagai
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Itsuki Izawa
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takato Mitsudome
- Department
of Materials Engineering Science, Osaka
University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Matthias Tamm
- Institut
für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Seiji Yamazoe
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
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8
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Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction. Catalysts 2019. [DOI: 10.3390/catal9070611] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The catalytic activity of the water-soluble scorpionate coordination compounds [Cu(-NN’O-Tpms)2] (1), [Mn(Tpms)2] (2) and Li[FeCl2(-NN’N’’-Tpms)] (3) [Tpms = tris(pyrazolyl)-methane sulfonate, O3SC(pz)3], were studied towards the (Henry) reaction between benzaldehyde and nitromethane or nitroethane in aqueous medium to afford, respectively, 2-nitro-1-phenylethanol or 2-nitro-1-phenylpropanol, the latter in the syn and the anti diastereoisomeric forms. Complex 1 exhibited the highest activity under the optimum experimental conditions and was used to broaden the scope of the reaction to include several aromatic aldehydes achieving yields up to 94%.
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9
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Comito RJ, Wu Z, Zhang G, Lawrence JA, Korzyński MD, Kehl JA, Miller JT, Dincă M. Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal–Organic Framework. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803642] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Robert J. Comito
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Zhenwei Wu
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - Guanghui Zhang
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - John A. Lawrence
- Aramco Research Center— Boston, Aramco Services Company 400 Technology Square Cambridge MA 02139 USA
| | - Maciej D. Korzyński
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Jeffrey A. Kehl
- Department of Chemistry Eugene F. Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Jeffrey T. Miller
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - Mircea Dincă
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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10
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Comito RJ, Wu Z, Zhang G, Lawrence JA, Korzyński MD, Kehl JA, Miller JT, Dincă M. Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal–Organic Framework. Angew Chem Int Ed Engl 2018; 57:8135-8139. [DOI: 10.1002/anie.201803642] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 04/24/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Robert J. Comito
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Zhenwei Wu
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - Guanghui Zhang
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - John A. Lawrence
- Aramco Research Center— Boston, Aramco Services Company 400 Technology Square Cambridge MA 02139 USA
| | - Maciej D. Korzyński
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Jeffrey A. Kehl
- Department of Chemistry Eugene F. Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Jeffrey T. Miller
- Davidson School of Chemical Engineering Purdue University 480 Stadium Mall Dr. West Lafayette IN 47907 USA
| | - Mircea Dincă
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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11
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Nomura K, Oshima M, Mitsudome T, Harakawa H, Hao P, Tsutsumi K, Nagai G, Ina T, Takaya H, Sun WH, Yamazoe S. Synthesis and Structural Analysis of (Imido)vanadium Dichloride Complexes Containing 2-(2'-Benz-imidazolyl)pyridine Ligands: Effect of Al Cocatalyst for Efficient Ethylene (Co)polymerization. ACS OMEGA 2017; 2:8660-8673. [PMID: 31457397 PMCID: PMC6645497 DOI: 10.1021/acsomega.7b01225] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/23/2017] [Indexed: 06/10/2023]
Abstract
(Imido)vanadium(V) dichloride complexes containing 2-(2'-benzimidazolyl)-6-methylpyridine ligand (L) of type V(NR)Cl2(L) [R = 1-adamantyl (Ad, 1), C6H5 (2), and 2,6-Me2C6H3 (3)] have been prepared, and their structures were determined by X-ray crystallography as distorted trigonal bipyramidal structures around vanadium. Reactions with ethylene using 1-3 in the presence of methylaluminoxane (MAO) afforded a mixture of oligomer and polymers, and the compositions were affected by the imido ligand employed. By contrast, 1-3 exhibited remarkable catalytic activities for ethylene polymerization in the presence of Me2AlCl; the phenylimido complex (2) exhibited the highest activity [80 100 kg-PE/mol-V·h turn over frequency (TOF, 2 850 000 h-1, 792 s-1)]. The ethylene copolymerizations with norbornene afforded ultrahigh-molecular-weight copolymers with uniform molecular weight distributions and compositions [e.g., M n = 1.71-2.66 × 106, M w/M n = 2.27-2.53]. On the basis of V nuclear magnetic resonance (51V NMR), electron spin resonance, and V K-edge X-ray absorption near-edge structure (XANES) spectra of the catalyst solution, the observed difference in the catalyst performance in the presence of (between) MAO and Me2AlCl cocatalyst should be due to the formation of different catalytically active species with different oxidation states. Apparent changes in the oxidation state were observed in the (especially in the NMR and XANES) spectra upon addition of Me2AlCl, whereas no significant changes in the spectra were observed in presence of MAO.
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Affiliation(s)
- Kotohiro Nomura
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Mari Oshima
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takato Mitsudome
- Department
of Materials Engineering Science, Osaka
University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Hitoshi Harakawa
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Peng Hao
- Key
Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
| | - Ken Tsutsumi
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Go Nagai
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Toshiaki Ina
- Japan
Synchrotron Radiation Research Institute (JASRI, SPring-8), Sayo, Hyogo 679-5198, Japan
| | - Hikaru Takaya
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research (ICR), Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Wen-Hua Sun
- Key
Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
| | - Seiji Yamazoe
- Department
of Chemistry, School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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12
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Moriuchi T, Sakuramoto T, Nishina M, Kawai R, Hirao T. Structural Characterization of (Arylimido)vanadium(V) Compounds with 2,6-Difluorophenoxide Ligand. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Toshiyuki Moriuchi
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Yamada-oka, Suita 565-0871 Osaka Japan
| | - Takashi Sakuramoto
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Yamada-oka, Suita 565-0871 Osaka Japan
| | - Masafumi Nishina
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Yamada-oka, Suita 565-0871 Osaka Japan
| | - Ryota Kawai
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Yamada-oka, Suita 565-0871 Osaka Japan
| | - Toshikazu Hirao
- Department of Applied Chemistry, Graduate School of Engineering; Osaka University; Yamada-oka, Suita 565-0871 Osaka Japan
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13
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Nomura K, Mitsudome T, Igarashi A, Nagai G, Tsutsumi K, Ina T, Omiya T, Takaya H, Yamazoe S. Synthesis of (Adamantylimido)vanadium(V) Dimethyl Complex Containing (2-Anilidomethyl)pyridine Ligand and Selected Reactions: Exploring the Oxidation State of the Catalytically Active Species in Ethylene Dimerization. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00727] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kotohiro Nomura
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takato Mitsudome
- Department
of Materials Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Atsushi Igarashi
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Go Nagai
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Ken Tsutsumi
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Toshiaki Ina
- Japan Synchrotron Radiation Research Institute (JASRI, SPring-8), Sayo, Hyogo 679-5198, Japan
| | - Takuya Omiya
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hikaru Takaya
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research (ICR), Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Seiji Yamazoe
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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14
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Bartalucci N, Bortoluzzi M, Marchetti F, Pampaloni G, Schoch S, Zacchini S. Unusual activation pathways of amines in the reactions with molybdenum pentachloride. NEW J CHEM 2017. [DOI: 10.1039/c6nj03992h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Both single electron reduction and oxidation of Mo(v) guide the activation of a series of aliphatic amines when these are allowed to react with MoCl5.
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Affiliation(s)
- Niccolò Bartalucci
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Marco Bortoluzzi
- Università di Venezia Ca' Foscari
- Dipartimento di Scienze Molecolari e Nanosistemi
- I-30170 Mestre (VE)
- Italy
| | - Fabio Marchetti
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Guido Pampaloni
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Silvia Schoch
- Università di Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Stefano Zacchini
- Università di Bologna
- Dipartimento di Chimica Industriale “Toso Montanari”
- I-40136 Bologna
- Italy
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15
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Vanadium(III) complexes containing phenoxy-imine-thiophene ligands: Synthesis, characterization and application to homo- and copolymerization of ethylene. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3678] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Phuphuak Y, Bonnet F, Vendier L, Lorber C, Zinck P. Isoprene polymerization mediated by vanadium-[ONNO] complexes. Dalton Trans 2016; 45:12069-77. [PMID: 27396409 DOI: 10.1039/c6dt02288j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Vanadium complexes with amine-bis(phenolate) [ONNO] ligands catalyze the polymerization of isoprene when activated with AliBu3.
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Affiliation(s)
- Yupin Phuphuak
- UCCS
- Unité de Catalyse et Chimie du Solide
- CNRS
- UMR8181
- ENSCL
| | - Fanny Bonnet
- UCCS
- Unité de Catalyse et Chimie du Solide
- CNRS
- UMR8181
- ENSCL
| | - Laure Vendier
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Christian Lorber
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Philippe Zinck
- UCCS
- Unité de Catalyse et Chimie du Solide
- CNRS
- UMR8181
- ENSCL
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17
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Peng D, Yan X, Yu C, Zhang S, Li X. Transition metal complexes bearing tridentate ligands for precise olefin polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00040a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers key developments in the design of post-metallocene transition metal complexes (precatalysts) bearing tridentate chelating ligands and their application in olefin polymerization.
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Affiliation(s)
- Deqian Peng
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Xinwen Yan
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Chao Yu
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education
- Department of Chemistry
- Beijing Institute of Technology
- Beijing
- China
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18
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Damon PL, Liss CJ, Lewis RA, Morochnik S, Szpunar DE, Telser J, Hayton TW. Quantifying the Electron Donor and Acceptor Abilities of the Ketimide Ligands in M(N═C(t)Bu2)4 (M = V, Nb, Ta). Inorg Chem 2015; 54:10081-95. [PMID: 26419513 PMCID: PMC4659433 DOI: 10.1021/acs.inorgchem.5b02017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Addition of 4 equiv of Li(N═C(t)Bu2) to VCl3 in THF, followed by addition of 0.5 equiv of I2, generates the homoleptic V(IV) ketimide complex, V(N═C(t)Bu2)4 (1), in 42% yield. Similarly, reaction of 4 equiv of Li(N═C(t)Bu2) with NbCl4(THF)2 in THF affords the homoleptic Nb(IV) ketimide complex, Nb(N═C(t)Bu2)4 (2), in 55% yield. Seeking to extend the series to the tantalum congener, a new Ta(IV) starting material, TaCl4(TMEDA) (3), was prepared via reduction of TaCl5 with Et3SiH, followed by addition of TMEDA. Reaction of 3 with 4 equiv of Li(N═C(t)Bu2) in THF results in the isolation of a Ta(V) ketimide complex, Ta(Cl)(N═C(t)Bu2)4 (5), which can be isolated in 32% yield. Reaction of 5 with Tl(OTf) yields Ta(OTf)(N═C(t)Bu2)4 (6) in 44% yield. Subsequent reduction of 6 with Cp*2Co in toluene generates the homoleptic Ta(IV) congener Ta(N═C(t)Bu2)4 (7), although the yields are poor. All three homoleptic group 5 ketimide complexes exhibit squashed tetrahedral geometries in the solid state, as determined by X-ray crystallography. This geometry leads to a d(x(2)-y(2))(1) ((2)B1 in D(2d)) ground state, as supported by DFT calculations. EPR spectroscopic analysis of 1 and 2, performed at X- and Q-band frequencies (∼9 and 35 GHz, respectively), further supports the (2)B1 ground-state assignment, whereas comparison of 1, 2, and 7 with related group 5 tetra(aryl), tetra(amido), and tetra(alkoxo) complexes shows a higher M-L covalency in the ketimide-metal interaction. In addition, a ligand field analysis of 1 and 2 demonstrates that the ketimide ligand is both a strong π-donor and strong π-acceptor, an unusual combination found in very few organometallic ligands.
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Affiliation(s)
- Peter L. Damon
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Cameron J. Liss
- Department of Biological, Chemical and Physical Sciences, Roosevelt University, 430 S. Michigan Ave. Chicago, Illinois 60605-1394 United States
| | - Richard A. Lewis
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Simona Morochnik
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - David E. Szpunar
- Department of Biological, Chemical and Physical Sciences, Roosevelt University, 430 S. Michigan Ave. Chicago, Illinois 60605-1394 United States
| | - Joshua Telser
- Department of Biological, Chemical and Physical Sciences, Roosevelt University, 430 S. Michigan Ave. Chicago, Illinois 60605-1394 United States
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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19
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Group 4 metal complexes for homogeneous olefin polymerisation: a short tutorial review. APPLIED PETROCHEMICAL RESEARCH 2015. [DOI: 10.1007/s13203-015-0105-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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20
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Yan Q, Sun Z, Zhang W, Nomura K, Sun WH. Vanadyl Di(5-t
-butyl-2-(aryliminomethyl)quinolin-8-olate): Synthesis, Characterization, and Ethylene (Co-)Polymerization. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400199] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qing Yan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Zelin Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science and Engineering; Tokyo Metropolitan University; 1-1 Minami Osawa Hachioji Tokyo 192-0397 Japan
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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21
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Galájov M, García C, Gómez M, Gómez-Sal P. Alkyl chlorido hydridotris(3,5-dimethylpyrazolyl)borate imido niobium and tantalum(V) complexes: synthesis, conformational states of alkyl groups in solid and solution, X-ray diffraction and multinuclear magnetic resonance spectroscopy studies. Dalton Trans 2014; 43:5747-58. [PMID: 24573068 DOI: 10.1039/c3dt53353k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The alkylation of the starting pseudooctahedral dichlorido imido hydridotris(3,5-dimethylpyrazolyl)borate niobium and tantalum(v) compounds [MTp*Cl2(NtBu)] (M = Nb,Ta; Tp* = BH(3,5-Me2C3HN2)3) with MgClR in different conditions led to new alkyl chlorido imido derivatives [MTp*ClR(NtBu)] (M = Nb/Ta, R = CH2CH31a/1b, CH2Ph 2a/2b, CH2tBu 3a/3b, CH2SiMe34a/4b, CH2CMe2Ph 5a/5b), whereas the dimethyl derivatives [MTp*Me2(NtBu)] (M = Nb 6a, Ta 6b) could be isolated as unitary species when the reaction was carried out using 2 equivalents of the magnesium reagent MgClMe. However, the chlorido methyl [MTp*ClMe(NtBu)] (M = Nb 7a, Ta 7b) complexes were obtained by heating at 50 °C the dichlorido and dimethyl imido complexes mixtures in a 1 : 1 ratio. All of the complexes were studied by multinuclear magnetic resonance spectroscopy and the molecular structures of 1b, 2a/b, 3a/b, 4a and 5a/b were determined by X-ray diffraction methods. In the solid state the complexes 1b, 4a and 5a exhibit only a gauche-anti conformation and the complexes 2a/b, 3a/b and 5b exhibit only a gauche-syn conformation of the alkyl substituents, whereas both conformational states, which do not show mutual exchange in the NMR time scale, were observed for 3a/b in a benzene-d6 solution. The (15)N chemical shifts of the complexes 1-7 are discussed.
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Affiliation(s)
- Miguel Galájov
- Centro de Espectroscopia de RMN, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
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22
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Groom LR, Russell AF, Schwarz AD, Mountford P. Reactions of a Cyclopentadienyl–Amidinate Titanium Benzimidamido Complex. Organometallics 2014. [DOI: 10.1021/om4011752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura R. Groom
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Adam F. Russell
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Philip Mountford
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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23
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Groom LR, Schwarz AD, Nova A, Clot E, Mountford P. Synthesis and Reactions of a Cyclopentadienyl-Amidinate Titanium tert-Butoxyimido Compound. Organometallics 2013. [DOI: 10.1021/om401008a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laura R. Groom
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Ainara Nova
- Institut
Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Eric Clot
- Institut
Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Philip Mountford
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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24
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Otero A, Fernández-Baeza J, Lara-Sánchez A, Sánchez-Barba LF. Metal complexes with heteroscorpionate ligands based on the bis(pyrazol-1-yl)methane moiety: Catalytic chemistry. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.027] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Lorber C, Vendier L. Novel aspects of the transamination reaction between Ti(NMe2)4 and primary amines. Dalton Trans 2013; 42:12203-19. [DOI: 10.1039/c3dt50840d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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26
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Schädle D, Schädle C, Törnroos KW, Anwander R. Organoaluminum-Assisted Formation of Rare-Earth Metal Imide Complexes. Organometallics 2012. [DOI: 10.1021/om300443x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dorothea Schädle
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Christoph Schädle
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Karl W. Törnroos
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen,
Norway
| | - Reiner Anwander
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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27
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Elorriaga D, Galajov M, Garcı́a C, Gómez M, Gómez-Sal P. Hydridotris(3,5-dimethylpyrazolyl)borate Dimethylamido Imido Niobium and Tantalum Complexes: Synthesis, Reactivity, Fluxional Behavior, and C–H Activation of the NMe2 Function. Organometallics 2012. [DOI: 10.1021/om300437e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Elorriaga
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Miguel Galajov
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Carlos Garcı́a
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Manuel Gómez
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Pilar Gómez-Sal
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
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28
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Igarashi A, Zhang S, Nomura K. Ethylene Dimerization/Polymerization Catalyzed by (Adamantylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands: Factors Affecting the Ethylene Reactivity. Organometallics 2012. [DOI: 10.1021/om3000532] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Atsushi Igarashi
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji,
Tokyo 192-0397, Japan
| | - Shu Zhang
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji,
Tokyo 192-0397, Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji,
Tokyo 192-0397, Japan
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29
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Yonke BL, Keane AJ, Zavalij PY, Sita LR. Mononuclear Tantalum(IV, d1) Imido Complexes Supported by the Monocyclopentadienyl, Amidinate and Guanidinate Ligand Sets As Models to Explore Dinitrogen Fixation by “End-On-Bridged” Dinuclear {[Ta(IV, d1)]}2(μ-η1:η1-N2) Complexes. Organometallics 2011. [DOI: 10.1021/om200961r] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Brendan L. Yonke
- Department
of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
| | - Andrew J. Keane
- Department
of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
| | - Peter Y. Zavalij
- Department
of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
| | - Lawrence R. Sita
- Department
of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
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30
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Schwarz AD, Nova A, Clot E, Mountford P. Titanium tert-Butoxyimido Compounds. Inorg Chem 2011; 50:12155-71. [DOI: 10.1021/ic201896q] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Andrew D. Schwarz
- Chemistry Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Ainara Nova
- Institut Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501,
Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Eric Clot
- Institut Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501,
Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Philip Mountford
- Chemistry Research Laboratory,
Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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31
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32
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Affiliation(s)
- Christian Lorber
- Laboratoire de Chimie de Coordination (LCC), Centre National de la Recherche Scientifique (CNRS), 205 route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination (LCC), Centre National de la Recherche Scientifique (CNRS), 205 route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UPS, INPT, LCC, F-31077 Toulouse, France
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33
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Ethylene homopolymerizaton and copolymerizaton by vanadium(III) complexes containing tridentate or tetradentate iminopyrrolyl ligands. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24702] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Zhang S, Nomura K. (Imido)vanadium Complexes as Efficient Catalyst Precursors for Olefin Polymerization/Oligomerization. CATALYSIS SURVEYS FROM ASIA 2011. [DOI: 10.1007/s10563-011-9116-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Nomura K, Zhang S. Design of Vanadium Complex Catalysts for Precise Olefin Polymerization. Chem Rev 2010; 111:2342-62. [DOI: 10.1021/cr100207h] [Citation(s) in RCA: 238] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kotohiro Nomura
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Shu Zhang
- Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
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36
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Wu JQ, Li BX, Zhang SW, Li YS. Bis(β-enaminoketonato) vanadium (III or IV) complexes as catalysts for olefin polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24084] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Wu JQ, Mu JS, Zhang SW, Li YS. Vanadium(V) complexes containing tetradentate amine trihydroxy ligands as catalysts for copolymerization of cyclic olefins. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.23868] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Aharonovich S, Botoshansky M, Tumanskii B, Nomura K, Waymouth RM, Eisen MS. Mono- and bis-amidinate 2,6-xylylimido vanadium chlorides: synthesis, structure, and reactivity. Dalton Trans 2010; 39:5643-9. [DOI: 10.1039/b925974k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Moriuchi T, Nishina M, Hirao T. Arylimidovanadium(V) Complexes for a Tridendritic Centrosymmetric Structural Motif or Axial Chirality. Angew Chem Int Ed Engl 2009; 49:83-6. [DOI: 10.1002/anie.200905425] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Moriuchi T, Nishina M, Hirao T. Arylimidovanadium(V) Complexes for a Tridendritic Centrosymmetric Structural Motif or Axial Chirality. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200905425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Michiue K, Oshiki T, Takai K, Mitani M, Fujita T. Tantalum Complexes Incorporating Tris(pyrazolyl)Borate Ligands: Syntheses, Structures, and Ethylene Polymerization Behavior. Organometallics 2009. [DOI: 10.1021/om9004719] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kenji Michiue
- Research Center, Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura, Chiba 299-0265, Japan
| | - Toshiyuki Oshiki
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Kita-ku, Okayama 700-8530, Japan
| | - Kazuhiko Takai
- Division of Chemistry and Biochemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Kita-ku, Okayama 700-8530, Japan
| | - Makoto Mitani
- Research Center, Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura, Chiba 299-0265, Japan
| | - Terunori Fujita
- Research Center, Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura, Chiba 299-0265, Japan
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42
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Zhang S, Katao S, Sun WH, Nomura K. Synthesis of (Arylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands and Their Use as the Catalyst Precursors for Olefin Polymerization. Organometallics 2009. [DOI: 10.1021/om900633u] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shu Zhang
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Shohei Katao
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Kotohiro Nomura
- Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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43
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Wu JQ, Pan L, Liu SR, He LP, Li YS. Ethylene polymerization and ethylene/hexene copolymerization with vanadium(III) catalysts bearing heteroatom-containing salicylaldiminato ligands. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23441] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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44
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McLauchlan CC, Weberski MP, Greiner BA. Synthesis, catalytic activity, phosphatase inhibition activity, and X-ray structural characterization of vanadium scorpionate complexes, (Tpms)VCl2(DMF) and (Tpms)VOCl(DMF). Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Wu JQ, Pan L, Li YG, Liu SR, Li YS. Synthesis, Structural Characterization, and Olefin Polymerization Behavior of Vanadium(III) Complexes Bearing Tridentate Schiff Base Ligands. Organometallics 2009. [DOI: 10.1021/om801028g] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji-Qian 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, and Graduate School of the Chinese Academy of Sciences, Changchun Branch, People’s Republic of China
| | - Li Pan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China, and Graduate School of the Chinese Academy of Sciences, Changchun Branch, People’s Republic of China
| | - Yan-Guo Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China, and Graduate School of the Chinese Academy of Sciences, Changchun Branch, People’s Republic of China
| | - San-Rong 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, and Graduate School of the Chinese Academy of Sciences, Changchun Branch, People’s Republic of China
| | - Yue-Sheng Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China, and Graduate School of the Chinese Academy of Sciences, Changchun Branch, People’s Republic of China
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Xu BC, Hu T, Wu JQ, Hu NH, Li YS. Novel vanadium(iii) complexes with bidentate N,N-chelating iminopyrrolide ligands: synthesis, characterization and catalytic behaviour of ethylene polymerization and copolymerization with 10-undecen-1-ol. Dalton Trans 2009:8854-63. [DOI: 10.1039/b909495d] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bolton PD, Feliz M, Cowley AR, Clot E, Mountford P. Ti═NR vs Ti−R′ Functional Group Selectivity in Titanium Imido Alkyl Cations from an Experimental Perspective. Organometallics 2008. [DOI: 10.1021/om800709f] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paul D. Bolton
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, cc 1501, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France
| | - Marta Feliz
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, cc 1501, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France
| | - Andrew R. Cowley
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, cc 1501, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France
| | - Eric Clot
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, cc 1501, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France
| | - Philip Mountford
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., and Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, cc 1501, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France
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48
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Schofield AD, Barros ML, Cushion MG, Schwarz AD, Mountford P. Sodium, magnesium and zinc complexes of mono(phenolate) heteroscorpionate ligands. Dalton Trans 2008:85-96. [PMID: 19081975 DOI: 10.1039/b813116c] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of bis(3,5-dimethylpyrazolyl)methylphenol N(2)O(Ar)H (1) with NaH in THF formed dimeric [Na(kappa(2)-N(2)O(Ar))(THF)](2) (2), which contains a kappa(2)(N,O)-bound bidentate N(2)O(Ar) ligand. The reaction of 1 with Mg(n)Bu(2) gave the four-coordinate monomeric butyl compound Mg(N(2)O(Ar))(n)Bu (3), whereas with (n)BuMgCl, a mixture of products was formed, including the six-coordinate homoleptic species Mg(N(2)O(Ar))(2) (4). The reaction of [Na(kappa(2)-N(2)O(Ar))(THF)](2) with (n)BuMgCl also gave 3, as did the redistribution reaction of Mg(n)Bu(2) with 4. The reaction of 1 with Mg{N(SiRMe(2))(2)}(2) afforded the four-coordinate amide derivatives Mg(N(2)O(Ar)){N(SiRMe(2))(2)} (R = Me (6) or H (7)), together with 4. The reactions of 1 with ZnMe(2) or Zn{N(SiMe(3))(2)}(2) gave the monomeric compounds Zn(N(2)O(Ar))Me (8) and Zn(N(2)O(Ar)){N(SiMe(3))(2)} (9), respectively. The reaction 9 of with HCl formed Zn(N(2)O(Ar))Cl (11), and subsequent addition of LiN(SiHMe(2))(2) to 11 led to Zn(N(2)O(Ar)){N(SiHMe(2))(2)} (12). The reaction of 1 with either Zn{N(SiMe(3))(2)}(2) or 9 gave Zn(N(2)O(Ar))(2). The compounds 2, 3, 4, 6, 8, 9 and 11 were crystallographically characterized. Compound was very active for the ring-opening polymerization (ROP) of epsilon-caprolactone (epsilon-CL) but the process was very poorly controlled as judged by the M(n) and polydispersity index of the polymer. Compounds 3, 8, 9 and 12 gave poor conversions to poly(epsilon-CL) over extended periods. N(2)O(Ar)H = 2,4-di-tert-butyl-6-(bis(3,5-dimethylpyrazolyl)methyl)phenol.
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Affiliation(s)
- A Daniel Schofield
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, UKOX1 3TA
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49
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Białek M, Czaja K. Dichlorovanadium (IV) complexes with salen-type ligands for ethylene polymerization. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23003] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Moriuchi T, Ishino K, Beppu T, Nishina M, Hirao T. Structural Characterization and Self-Association of (Arylimido)vanadium(V) Triisopropoxides. Inorg Chem 2008; 47:7638-43. [DOI: 10.1021/ic800528m] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Toshiyuki Moriuchi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Kenta Ishino
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Tomohiko Beppu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Masafumi Nishina
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Toshikazu Hirao
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamada-oka, Suita, Osaka 565-0871, Japan
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