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Kent GT, Cook AW, Damon PL, Lewis RA, Wu G, Hayton TW. Synthesis and Characterization of Two "Tied-Back" Lithium Ketimides and Isolation of a Ketimide-Bridged [Cr 2] 6+ Dimer with Strong Antiferromagnetic Coupling. Inorg Chem 2021; 60:4996-5004. [PMID: 33764048 DOI: 10.1021/acs.inorgchem.1c00052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of 1 equiv of KN(SiMe3)2 with 9-fluorenone results in the formation of (Me3Si)N═C13H8 (1) in high yield after work-up. Addition of 1 equiv of phenol to 1 results in rapid desilylation and formation of 9-fluorenone imine, HN═C13H8 (2). Subsequent reaction of 2 with 1 equiv of LiNiPr2 results in deprotonation and formation of [Li(Et2O)]4[N═C13H8]4 (3) in good yield. Reaction of 1 equiv of KN(SiMe3)2 with 2-adamantanone for 7 days at room temperature results in the formation of (Me3Si)N═C10H14 (4) in good yield. Dissolution of 4 in neat MeOH results in rapid desilylation concomitant with formation of 2-adamantanone imine, HN═C10H14 (5). Subsequent reaction of 5 with 1 equiv of LiNiPr2 results in formation of [Li(THF)]4[N═C10H14]4 (6). Both 3 and 6 were characterized by X-ray crystallography. Finally, reaction of CrCl3 with 3.5 equiv of 6 results in formation of the [Cr2]6+ dimer, [Li][Cr2(N═C10H14)7] (7), which can be isolated in modest yield after work-up. Complex 7 features a Cr-Cr bond length of 2.653(2) Å. Additionally, solid-state magnetic susceptibility measurements reveal strong antiferromagnetic coupling between the two Cr centers, with J = -200 cm-1.
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Affiliation(s)
- Greggory T Kent
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Andrew W Cook
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Peter L Damon
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Richard A Lewis
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Guang Wu
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Trevor W Hayton
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, California 93106, United States
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2
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Kayda AS, Rumyantsev AV, Zubkevich SV, Zhizhko PA, Takazova RU, Tuskaev VA, Gagieva SC, Buzin MI, Shatokhin SS, Nikiforova GG, Vasil'ev VG, Pavlov AA, Saracheno D, Melnikova EK, Magomedov KF, Kolosov NA, Bulychev BM. Vanadium(V) imido chlorides and n-propoxides — Towards a rational design of vanadium imido precatalysts for ethylene polymerization. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Xing T, Prior TJ, Elsegood MRJ, Semikolenova NV, Soshnikov IE, Bryliakov K, Chen K, Redshaw C. Vanadium complexes derived from oxacalix[6]arenes: structural studies and use in the ring opening homo-/co-polymerization of ε-caprolactone/δ-valerolactone and ethylene polymerization. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01979h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Oxacalix[6]arene vanadium complexes have been employed for the ROP of cyclic esters and ethylene polymerization.
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Affiliation(s)
- Tian Xing
- Plastics Collaboratory
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - Timothy J. Prior
- Plastics Collaboratory
- Department of Chemistry
- University of Hull
- Hull
- UK
| | | | | | - Igor E. Soshnikov
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University
- Novosibirsk 630090
| | - Konstantin Bryliakov
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russian Federation
- Novosibirsk State University
- Novosibirsk 630090
| | - Kai Chen
- Plastics Collaboratory
- Department of Chemistry
- University of Hull
- Hull
- UK
| | - Carl Redshaw
- Plastics Collaboratory
- Department of Chemistry
- University of Hull
- Hull
- UK
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4
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Zhao M, Wang L, Mahmood Q, Jing C, Zhu G, Zhang X, Chen X, Wang Q. Highly active and thermo‐stable iminopyridyl vanadium oxychloride catalyzed isoprene polymerization. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mengmeng Zhao
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
| | - Liang Wang
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
| | - Qaiser Mahmood
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
| | - Chuyang Jing
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
| | - Guangqian Zhu
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
- Center of Materials Science and Optoelectronics Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, University of Chinese Academy of Sciences Beijing China
| | - Xianhui Zhang
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
- Center of Materials Science and Optoelectronics Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, University of Chinese Academy of Sciences Beijing China
| | - Xiao Chen
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
| | - Qinggang Wang
- Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences Qingdao China
- Center of Materials Science and Optoelectronics Key Laboratory of Biobased Materials Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, University of Chinese Academy of Sciences Beijing China
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5
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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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6
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Hao Z, Li F, Gao W. o
‐Trityl phenoxy‐imino vanadium (III) complexes: synthesis, characterization, and catalysis on ethylene (co)polymerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhiqiang Hao
- College of ChemistryJilin University Changchun 130012 China
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry & Material ScienceHebei Normal University Shijiazhuang 050024 China
| | - Feng Li
- College of ChemistryJilin University Changchun 130012 China
| | - Wei Gao
- College of ChemistryJilin University Changchun 130012 China
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7
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Gryca I, Czerwińska K, Machura B, Chrobok A, Shul’pina LS, Kuznetsov ML, Nesterov DS, Kozlov YN, Pombeiro AJL, Varyan IA, Shul’pin GB. High Catalytic Activity of Vanadium Complexes in Alkane Oxidations with Hydrogen Peroxide: An Effect of 8-Hydroxyquinoline Derivatives as Noninnocent Ligands. Inorg Chem 2018; 57:1824-1839. [DOI: 10.1021/acs.inorgchem.7b02684] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Izabela Gryca
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Katarzyna Czerwińska
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Barbara Machura
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Lidia S. Shul’pina
- Nesmeyanov Institute
of Organoelement Compounds, Russian Academy of Sciences, Ulitsa Vavilova, 28, 119991 Moscow, Russia
| | - Maxim L. Kuznetsov
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Dmytro S. Nesterov
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Yuriy N. Kozlov
- Semenov
Institute of Chemical Physics, Russian Academy of Sciences, Ulitsa Kosygina, dom 4, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
| | - Armando J. L. Pombeiro
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ivetta A. Varyan
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
| | - Georgiy B. Shul’pin
- Semenov
Institute of Chemical Physics, Russian Academy of Sciences, Ulitsa Kosygina, dom 4, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
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8
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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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9
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Use of Vanadium Complexes Bearing Naphthalene-Bridged Nitrogen-Sulfonate Ligands as Catalysts for Copolymerization of Ethylene and Propylene. Polymers (Basel) 2017; 9:polym9080325. [PMID: 30971000 PMCID: PMC6418982 DOI: 10.3390/polym9080325] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 07/19/2017] [Accepted: 07/24/2017] [Indexed: 11/16/2022] Open
Abstract
Vanadium complexes bearing naphthalene-bridged nitrogen-sulfonate ligand ([ê2(N,O)-8-(PhN)-1-naphthalenesulfonato]VOCl (1a) and [ê2(N,O)-8-(PhN)-1-naphthalenesulfonato]VCl2 (1b)) were synthesized. Activated by ethylaluminium sesquichloride (EASC) and in the presence of ethyl trichloroacetate (ETCA) as reactivator, complexes 1a and 1b showed activities of up to 39.1 kg polymer (mol V)−1 h−1, affording the copolymers with high molecular weights (Mw up to 28 × 104) and narrow molecular weight distributions (Mw/Mn ~ 3.0) as well as high propylene incorporation of up to 49.4%. Compared to the traditional VOCl3 system, these complexes exhibited higher propylene incorporation ability and higher catalytic activities especially at high polymerization temperatures of 50 °C and above. Determined by DSC and 13C NMR, the copolymers obtained with 1a and 1b had more random structures than that with the VOCl3 system.
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10
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Introduction of constrained cyclic skeleton into β-enaminoketonato vanadium complexes: A strategy for stabilization of active centre of vanadium catalyst for ethylene polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-017-1956-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Soshnikov IE, Semikolenova NV, Bryliakov KP, Zakharov VA, Talsi EP. Vanadium(III)-Catalyzed Polymerization of α-Olefins: Detailed NMR Spectroscopic Characterization of Intermediates Modeling the Active Species of Polymerization. ChemCatChem 2017. [DOI: 10.1002/cctc.201601634] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Igor E. Soshnikov
- Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences; Boreskov Institute of Catalysis; 630090 Novosibirsk pr. Akad. Lavrent'eva, 5 Russian Federation
- The Ministry of Education and Science of the Russian Federation; Novosibirsk State University; 630090 Novosibirsk Pirogova street, 2 Russian Federation
| | - Nina V. Semikolenova
- Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences; Boreskov Institute of Catalysis; 630090 Novosibirsk pr. Akad. Lavrent'eva, 5 Russian Federation
| | - Konstantin P. Bryliakov
- Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences; Boreskov Institute of Catalysis; 630090 Novosibirsk pr. Akad. Lavrent'eva, 5 Russian Federation
- The Ministry of Education and Science of the Russian Federation; Novosibirsk State University; 630090 Novosibirsk Pirogova street, 2 Russian Federation
| | - Vladimir A. Zakharov
- Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences; Boreskov Institute of Catalysis; 630090 Novosibirsk pr. Akad. Lavrent'eva, 5 Russian Federation
- The Ministry of Education and Science of the Russian Federation; Novosibirsk State University; 630090 Novosibirsk Pirogova street, 2 Russian Federation
| | - Evgenii P. Talsi
- Federal Agency for Scientific Organizations, Siberian Branch of the Russian Academy of Sciences; Boreskov Institute of Catalysis; 630090 Novosibirsk pr. Akad. Lavrent'eva, 5 Russian Federation
- The Ministry of Education and Science of the Russian Federation; Novosibirsk State University; 630090 Novosibirsk Pirogova street, 2 Russian Federation
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12
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Theoretical Study of Terminal Vanadium(V) Chalcogenido Complexes Bearing Chlorido and Methoxido Ligands. J CHEM-NY 2017. [DOI: 10.1155/2017/6796321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Solvent (methanol) coordinated vanadium(V) chalcogenido complexes bearing chlorido and methoxido ligands have been studied computationally by means of density functional (DFT) methods. The gas phase complexes were fully optimized using B3LYP/GEN functionals with 6-31+G⁎⁎ and LANL2DZ basis sets. The optimized complexes show distorted octahedral geometries around the central vanadium atom. The ligand pπ-vanadium dπ interactions were analyzed by natural bond order (NBO) and natural population analyses (NPA). These results show strong stabilization of the V=O bond as was further confirmed by the analyses of the frontier molecular orbitals (FMOs). Second-order perturbation analyses also revealed substantial delocalization of lone pair electrons from the oxido ligand into vacant non-Lewis (Rydberg) orbitals as compared to the sulfido and seleno analogues. These results show significant ligand-to-metal charge transfer (LMCT) interactions. Full interaction map (FIM) of the reference complex confirms hydrogen bond interactions involving the methanol (O-H) and the chlorido ligand.
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Yuan S, Wang L, Hua Y, Zhang J, Sun WH. Arylimido zirconium and titanium complexes: characteristic structures and application in ethylene polymerization. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2016-0084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Dimeric anilidolithium (ArHNLi·Et2O)2 (Ar=2,6-
i
Pr2C6H3) reacted with zirconium tetrachloride in THF to give the heterometallic zirconium–lithium complex [(Et2O)2Li(μ-Cl)2(ArHN)(ArN=)Zr(μ-Cl)]2 (C1) and with titanium tetrachloride in toluene to give the titanium complex [(ArN=)TiCl2·(Et2O)2] (C2) each in good isolated yields. Their molecular structures in the solid state were confirmed by X-ray diffraction analysis. Upon activation with methylaluminoxane, both arylimido zirconium and titanium complexes exhibited good catalytic activities toward ethylene polymerization.
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Affiliation(s)
- Shifang Yuan
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P.R. China
| | - Lijing Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
| | - Yupeng Hua
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P.R. China
- College of Ordos, Inner Mongolia University, Ordos 017000, P.R. China
| | - Jing Zhang
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P.R. China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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14
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Igarashi A, Kolychev EL, Tamm M, Nomura K. Synthesis of (Imido)Vanadium(V) Dichloride Complexes Containing Anionic N-Heterocyclic Carbenes That Contain a Weakly Coordinating Borate Moiety: New MAO-Free Ethylene Polymerization Catalysts. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00200] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Atsushi Igarashi
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Eugene L. Kolychev
- Institut
für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Tamm
- Institut
für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Kotohiro Nomura
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
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15
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Campos J, López-Serrano J, Peloso R, Carmona E. Methyl Complexes of the Transition Metals. Chemistry 2016; 22:6432-57. [PMID: 26991740 DOI: 10.1002/chem.201504483] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 01/11/2023]
Abstract
Organometallic chemistry can be considered as a wide area of knowledge that combines concepts of classic organic chemistry, that is, based essentially on carbon, with molecular inorganic chemistry, especially with coordination compounds. Transition-metal methyl complexes probably represent the simplest and most fundamental way to view how these two major areas of chemistry combine and merge into novel species with intriguing features in terms of reactivity, structure, and bonding. Citing more than 500 bibliographic references, this review aims to offer a concise view of recent advances in the field of transition-metal complexes containing M-CH3 fragments. Taking into account the impressive amount of data that are continuously provided by organometallic chemists in this area, this review is mainly focused on results of the last five years. After a panoramic overview on M-CH3 compounds of Groups 3 to 11, which includes the most recent landmark findings in this area, two further sections are dedicated to methyl-bridged complexes and reactivity.
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Affiliation(s)
- Jesús Campos
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Joaquín López-Serrano
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Riccardo Peloso
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química, Avanzada (ORFEO-CINQA), Universidad de Sevilla and Consejo Superior de Investigaciones Cientificas (CSIC), Avenida Américo Vespucio 49, 41092, Sevilla, Spain.
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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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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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18
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Redshaw C, Walton M, Michiue K, Chao Y, Walton A, Elo P, Sumerin V, Jiang C, Elsegood MRJ. Vanadyl calix[6]arene complexes: synthesis, structural studies and ethylene homo-(co-)polymerization capability. Dalton Trans 2015; 44:12292-303. [PMID: 25765783 DOI: 10.1039/c5dt00376h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of p-tert-butylcalix[6]areneH6 (L(6)H6) with in situ [LiVO(Ot-Bu)4] afforded, after work-up, the dark green complex [Li(MeCN)4][V2(O)2Li(MeCN)(L(6)H2)2]·8MeCN (1·8MeCN). On one occasion, the reaction led to the formation of a mixture of products, the bulk of which differing from 1 only in the amount of solvate, viz.2·9.67MeCN. The second minor, yellow product has the formula {[(VO2)2(L(6)H2)(Li(MeCN)2)2]·2MeCN}n (3·2MeCN), and comprises a 1D polymeric structure with links through the L(6)H2 ligand and Li2O2 units. When the reverse order of addition was employed such that lithium tert-butoxide (7.5 equivalents) was added to L(6)H6, and subsequently treated with VOCl3 (2 equiv.), the complex {[VO(THF)][VO(μ-O)]2Li(THF)(Et2O)][L(6)]}·2Et2O·0.5THF (4·2Et2O·0.5THF), which contains a trinuclear motif possessing a central, octahedral vanadyl centre linked via oxo bridges to two tetrahedral (C3v) vanadyl centres, was isolated. The calix[6]arene in 4 is severely twisted and adopts a ‘down, down, down, down, out, out’ conformation. Use of excess lithium tert-butoxide led to a complex very similar to 4, differing only in the solvent of crystallization, namely 5·Et2O·2THF. The ability of 1 and 5 to act as pre-catalysts for ethylene polymerization in the presence of a variety of co-catalysts and under various conditions has been investigated. Co-polymerization of ethylene with propylene and with 1-hexene have also been conducted; results are compared versus VO(OEt)Cl2.
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Affiliation(s)
| | - Mark Walton
- School of Chemistry
- University of East Anglia
- Norwich
- UK
| | - Kenji Michiue
- Process Technology Center
- Mitsui Chemicals Inc
- Chiba 299-0265
- Japan
| | - Yimin Chao
- School of Chemistry
- University of East Anglia
- Norwich
- UK
| | - Alex Walton
- School of Physics & Astronomy
- University of Leeds
- Leeds
- UK
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19
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Diteepeng N, Tang X, Hou X, Li YS, Phomphrai K, Nomura K. Ethylene polymerisation and ethylene/norbornene copolymerisation by using aryloxo-modified vanadium(V) complexes containing 2,6-difluoro-, dichloro-phenylimido complexes. Dalton Trans 2015; 44:12273-81. [PMID: 25716981 DOI: 10.1039/c4dt04026k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aryloxo-modified vanadium(V) dichloride complexes containing a dichloro- or difluoro-phenylimido ligand of the type, V(N-2,6-X2C6H3)Cl2(O-2,6-R2C6H3) [X = Cl (1), F (2); R = Me (a), F (b)], showed remarkable catalytic activity in ethylene polymerisation and the copolymerisation with norbornene (NBE) in the presence of Et2AlCl; the activities were higher than that of V(N-2,6-Me2C6H3)Cl2(O-2,6-Me2C6H3) reported previously. Complex 1a is a suitable catalyst precursor in terms of not only the activity, but also synthesis of high molecular weight copolymers with both unimodal molecular weight distributions and uniform compositions.
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Affiliation(s)
- Nichabhat Diteepeng
- 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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20
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Wang JB, Lu LP, Liu JY, Mu HL, Li YS. [ONNO]-type oxovanadium(V) complexes containing amine pyridine bis(phenolate) ligands: synthesis, characterization and catalytic behavior for ethylene (co)polymerization. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.12.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Redshaw C, Walton MJ, Elsegood MRJ, Prior TJ, Michiue K. Vanadium(v) tetra-phenolate complexes: synthesis, structural studies and ethylene homo-(co-)polymerization capability. RSC Adv 2015. [DOI: 10.1039/c5ra20177b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bi-metallic vanadium(v) tetra-phenolate complexes, on combination with organoaluminium co-catalysts and a reactivator, are capable of ethylene homo- or ethylene/propylene co-polymerization of ethylene with high activity.
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Affiliation(s)
| | - Mark J. Walton
- Energy Materials Laboratory
- School of Chemistry
- University of East Anglia
- Norwich
- UK
| | | | | | - Kenji Michiue
- Process Technology Center
- Mitsui Chemicals Inc
- Chiba 299-0265
- Japan
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22
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Ma J, Zhao KQ, Walton M, Wright JA, Hughes DL, Elsegood MRJ, Michiue K, Sun X, Redshaw C. Tri- and tetra-dentate imine vanadyl complexes: synthesis, structure and ethylene polymerization/ring opening polymerization capability. Dalton Trans 2014; 43:16698-706. [DOI: 10.1039/c4dt01448k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Wang JB, Lu LP, Liu JY, Li YS. [ONN]-type amine pyridine(s) phenolate-based oxovanadium(v) catalysts for ethylene homo- and copolymerization. Dalton Trans 2014; 43:12926-34. [DOI: 10.1039/c4dt01166j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Lu LP, Wang JB, Liu JY, Li YS. Synthesis, structural characterization, and ethylene polymerization behavior of (arylimido)vanadium(V) complexes bearing tridentate Schiff base ligands. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27280] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ling-Pan Lu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- University of the Chinese Academy of Sciences, Changchun Branch; Changchun 130022 China
| | - Jia-Bao Wang
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
- University of the Chinese Academy of Sciences, Changchun Branch; Changchun 130022 China
| | - Jing-Yu Liu
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
| | - Yue-Sheng Li
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 China
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25
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Soshnikov IE, Semikolenova NV, Antonov AA, Bryliakov KP, Zakharov VA, Talsi EP. 1H and 2H NMR Spectroscopic Characterization of Heterobinuclear Ion Pairs Formed upon the Activation of Bis(imino)pyridine Vanadium(III) Precatalysts with AlMe3/[Ph3C]+[B(C6F5)4]− and MAO. Organometallics 2014. [DOI: 10.1021/om500267e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Igor E. Soshnikov
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 630090, Novosibirsk, Russian Federation
| | - Nina V. Semikolenova
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
| | - Artem A. Antonov
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 630090, Novosibirsk, Russian Federation
| | - Konstantin P. Bryliakov
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 630090, Novosibirsk, Russian Federation
| | - Vladimir A. Zakharov
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 630090, Novosibirsk, Russian Federation
| | - Evgenii P. Talsi
- Boreskov
Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russian Federation
- Novosibirsk State University, 630090, Novosibirsk, Russian Federation
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26
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Tang XY, Igarashi A, Sun WH, Inagaki A, Liu J, Zhang W, Li YS, Nomura K. Synthesis of (Imido)vanadium(V) Complexes Containing 8-(2,6-Dimethylanilide)-5,6,7-trihydroquinoline Ligands: Highly Active Catalyst Precursors for Ethylene Dimerization. Organometallics 2014. [DOI: 10.1021/om401119y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xiao-Yan Tang
- Department of Chemistry,
Graduate School of
Science and Engineering, Tokyo Metropolitan University, 1-1 minami
Osawa, Hachioji, Tokyo 192-0397, Japan
- State Key Laboratory of Polymer Physics and
Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Atsushi Igarashi
- 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, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Akiko Inagaki
- Department of Chemistry,
Graduate School of
Science and Engineering, Tokyo Metropolitan University, 1-1 minami
Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Jingyu 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
| | - Wenjuan Zhang
- Key
Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, 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
| | - 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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27
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Ma J, Zhao KQ, Walton MJ, Wright JA, Frese JWA, Elsegood MRJ, Xing Q, Sun WH, Redshaw C. Vanadyl complexes bearing bi-dentate phenoxyimine ligands: synthesis, structural studies and ethylene polymerization capability. Dalton Trans 2014; 43:8300-10. [DOI: 10.1039/c4dt00021h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Mono- and bi-vanadium bidentate phenoxyimine complexes have been structurally characterized. They are highly active ethylene polymerization catalysts in the presence of diethylaluminum chloride and ethyltrichloroacetate.
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Affiliation(s)
- Jing Ma
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu, China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu, China
| | - Mark J. Walton
- Energy Materials Laboratory
- School of Chemistry
- University of East Anglia
- Norwich, UK
| | - Joseph A. Wright
- Energy Materials Laboratory
- School of Chemistry
- University of East Anglia
- Norwich, UK
| | | | | | - Qifeng Xing
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Carl Redshaw
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu, China
- Department of Chemistry
- University of Hull
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28
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Nomura K, Bahuleyan BK, Zhang S, Veeresha Sharma PM, Katao S, Igarashi A, Inagaki A, Tamm M. Synthesis and Structural Analysis of (Imido)vanadium(V) Dichloride Complexes Containing Imidazolin-2-iminato- and Imidazolidin-2-iminato Ligands, and their Use as Catalyst Precursors for Ethylene (Co)polymerization. Inorg Chem 2013; 53:607-23. [DOI: 10.1021/ic402747d] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kotohiro Nomura
- Department
of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan
| | - Bijal Kottukkal Bahuleyan
- Department
of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
| | - Shu Zhang
- Department
of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan
| | | | - Shohei Katao
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan
| | - Atsushi Igarashi
- Department
of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
| | - Akiko Inagaki
- Graduate
School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan
| | - Matthias Tamm
- Institut
für
Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring
30, 38106 Braunschweig, Germany
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29
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Nomura K, Igarashi A, Katao S, Zhang W, Sun WH. Synthesis and Structural Analysis of (Imido)Vanadium(V) Complexes Containing Chelate (Anilido)Methyl-imine Ligands: Ligand Effect in Ethylene Dimerization. Inorg Chem 2013; 52:2607-14. [PMID: 23418852 DOI: 10.1021/ic302633y] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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
| | - Atsushi Igarashi
- Department of Chemistry, Graduate
School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397,
Japan
| | - Shohei Katao
- Graduate School of
Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics, Institute
of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, People’s Republic of China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics, Institute
of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, People’s Republic of China
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30
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Ethylene Polymerization Using (Imino)vanadium(V) Dichloride Complexes Containing (Anilido)methyl-pyridine, -quinoline Ligands–Halogenated Al Alkyls Catalyst Systems. Catalysts 2013. [DOI: 10.3390/catal3010148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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31
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Bortoluzzi M, Marchetti F, Pampaloni G, Pucino M, Zacchini S. Coordination complexes of NbX5 (X = F, Cl) with (N,O)- and (O,O)-donor ligands and the first X-ray characterization of a neutral NbF5 adduct. Dalton Trans 2013; 42:13054-64. [DOI: 10.1039/c3dt50930c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Clowes L, Walton M, Redshaw C, Chao Y, Walton A, Elo P, Sumerin V, Hughes DL. Vanadium(iii) phenoxyimine complexes for ethylene or ε-caprolactone polymerization: mononuclear versus binuclear pre-catalysts. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20571h] [Citation(s) in RCA: 28] [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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33
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Wicker BF, Fan H, Hickey AK, Crestani MG, Scott J, Pink M, Mindiola DJ. Evidence for the Existence of Terminal Scandium Imidos: Mechanistic Studies Involving Imido–Scandium Bond Formation and C–H Activation Reactions. J Am Chem Soc 2012; 134:20081-96. [DOI: 10.1021/ja307279r] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benjamin F. Wicker
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Hongjun Fan
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Anne K. Hickey
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Marco G. Crestani
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Jennifer Scott
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Maren Pink
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Daniel J. Mindiola
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
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34
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Nomura K, Suzuki K, Katao S, Matsumoto Y. Ring-Opening Polymerization of THF by Aryloxo-Modified (Imido)vanadium(V)-alkyl Complexes and Ring-Opening Metathesis Polymerization by Highly Active V(CHSiMe3)(NAd)(OC6F5)(PMe3)2. Organometallics 2012. [DOI: 10.1021/om300463f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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
- Graduate School of
Materials
Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Ken Suzuki
- Department
of Chemistry, Graduate
School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397,
Japan
| | - Shohei Katao
- Graduate School of
Materials
Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Yuichi Matsumoto
- Graduate School of
Materials
Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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35
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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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36
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Nomura K. (Imido)vanadium(V)-alkyl, Alkylidene Complexes Exhibiting Unique Reactivities towards Olefins, Phenols, and Benzene via 1,2-C-H Bond Activation. J CHIN CHEM SOC-TAIP 2012. [DOI: 10.1002/jccs.201100298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Suzuki K, Matsumoto Y, Nomura K. Synthesis of (adamantylimido)vanadium(V)-alkyl complexes containing aryloxo ligands and their use as the catalyst precursors for ring-opening metathesis polymerization of norbornene, and ring-opening polymerization of tetrahydrofuran. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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38
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Catalytic and coordination facets of single-site non-metallocene organometallic catalysts with N-heterocyclic scaffolds employed in olefin polymerization. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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39
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40
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Nomura K, Matsumoto Y. Unique Reactivity of (Arylimido)vanadium(V)–Alkyl Complexes with Phenols: Fast Phenoxy Ligand Exchange in the Presence of Vanadium(V)–Alkyls. Organometallics 2011. [DOI: 10.1021/om200299a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kotohiro Nomura
- Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Yuichi Matsumoto
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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Zhang S, Tamm M, Nomura K. 1,2-C−H Activation of Benzene Promoted by (Arylimido)vanadium(V)-Alkylidene Complexes: Isolation of the Alkylidene, Benzyne Complexes. Organometallics 2011. [DOI: 10.1021/om200086n] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shu Zhang
- Department of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
| | - Matthias Tamm
- Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina zu Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Kotohiro Nomura
- Department of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
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Terao H, Iwashita A, Matsukawa N, Ishii S, Mitani M, Tanaka H, Nakano T, Fujita T. Ethylene and Ethylene/α-Olefin (Co)Polymerization Behavior of Bis(phenoxy−imine)Ti Catalysts: Significant Substituent Effects on Activity and Comonomer Incorporation. ACS Catal 2011. [DOI: 10.1021/cs100148a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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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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Makio H, Terao H, Iwashita A, Fujita T. FI Catalysts for Olefin Polymerization—A Comprehensive Treatment. Chem Rev 2011; 111:2363-449. [DOI: 10.1021/cr100294r] [Citation(s) in RCA: 488] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Haruyuki Makio
- Research Center, Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura, Chiba 299-0265, Japan
| | - Hiroshi Terao
- Research Center, Mitsui Chemicals, Inc., 580-32 Nagaura, Sodegaura, Chiba 299-0265, Japan
| | - Akihiko Iwashita
- 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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Lorber C, Despagnet-Ayoub E, Vendier L, Arbaoui A, Redshaw C. Amine influence in vanadium-based ethylene polymerisation pro-catalysts bearing bis(phenolate) ligands with ‘pendant’ arms. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00089f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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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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47
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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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48
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Zhang S, Nomura K. Highly Efficient Dimerization of Ethylene by (Imido)vanadium Complexes Containing (2-Anilidomethyl)pyridine Ligands: Notable Ligand Effect toward Activity and Selectivity. J Am Chem Soc 2010; 132:4960-5. [DOI: 10.1021/ja100573d] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shu Zhang
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Kotohiro Nomura
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
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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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50
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Redshaw C. Vanadium procatalysts bearing chelating aryloxides: structure–activity trends in ethylene polymerisation. Dalton Trans 2010; 39:5595-604. [DOI: 10.1039/b924088h] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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