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Recent progress on the tridentate iron complex catalysts for ethylene oligo-/polymerization. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2023. [DOI: 10.1016/bs.adomc.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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2
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Chacon-Teran MA, Findlater M. Redox‐active BIAN‐based Iron Complexes in Catalysis. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Michael Findlater
- University of California Merced Department of Chemistry 5200 N. Lake Road 95340 Merced UNITED STATES
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3
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One-pot synthesis of symmetrical and unsymmetrical α-diimine Nickel complexes in comparison with two-pot synthesis method for ethylene polymerization. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03049-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Kamitani M. Chemically robust and readily available quinoline-based PNN iron complexes: application in C-H borylation of arenes. Chem Commun (Camb) 2021; 57:13246-13258. [PMID: 34812447 DOI: 10.1039/d1cc04877e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Iron catalysts have been used for over a century to produce ammonia industrially. However, the use of iron catalysts generally remained quite limited until relatively recently, when the abundance and low toxicity of iron spurred the development of a variety of iron catalysts. Despite the fact that iron catalysts are being developed as alternatives to precious metal catalysts, their reactivities and stabilities are quite different because of their unique electronic structures. In this context, our group previously developed a new family of quinoline-based PNN pincer-type ligands for low- to mid-valent iron catalysts. These chemically robust PNN ligands provide air- and moisture-tolerant iron complexes, which exhibit excellent catalytic performances in the C-H borylation of arenes. This feature article summarises our recent work on PNN iron complexes, including their conception and design, as well as related reports on iron pincer complexes and iron-catalysed C-H borylation reactions.
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Affiliation(s)
- Masahiro Kamitani
- Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitazato, Minami-ku, Sagamihara 252-0373, Japan.
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5
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Beromi MM, Younker JM, Zhong H, Pabst TP, Chirik PJ. Catalyst Design Principles Enabling Intermolecular Alkene-Diene [2+2] Cycloaddition and Depolymerization Reactions. J Am Chem Soc 2021; 143:17793-17805. [PMID: 34652908 DOI: 10.1021/jacs.1c08912] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aryl-substituted pyridine(diimine) iron complexes promote the catalytic [2 + 2] cycloadditions of alkenes and dienes to form vinylcyclobutanes as well as the oligomerization of butadiene to generate divinyl(oligocyclobutane), a microstructure of poly(butadiene) that is chemically recyclable. A systematic study on a series of iron butadiene complexes as well as their ruthenium congeners has provided insights into the essential features of the catalyst that promotes these cycloaddition reactions. Structural and computational studies on iron butadiene complexes identified that the structural rigidity of the tridentate pincer enables rare s-trans diene coordination. This geometry, in turn, promotes dissociation of one of the alkene arms of the diene, opening a coordination site for the incoming substrate to engage in oxidative cyclization. Studies on ruthenium congeners established that this step occurs without redox involvement of the pyridine(diimine) chelate. Cyclobutane formation occurs from a metallacyclic intermediate by reversible C(sp3)-C(sp3) reductive coupling. A series of labeling experiments with pyridine(diimine) iron and ruthenium complexes support the favorability of accessing the +3 oxidation state to trigger C(sp3)-C(sp3) reductive elimination, involving spin crossover from S = 0 to S = 1. The high density of states of iron and the redox-active pyridine(diimine) ligand facilitate this reactivity under thermal conditions. For the ruthenium congener, the pyridine(diimine) remains redox innocent and irradiation with blue light was required to promote the analogous reactivity. These structure-activity relationships highlight important design principles for the development of next generation catalysts for these cycloaddition reactions as well as the promotion of chemical recycling of cycloaddition polymers.
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Affiliation(s)
- Megan Mohadjer Beromi
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Jarod M Younker
- ExxonMobil Chemical Company, Baytown, Texas 77520, United States
| | - Hongyu Zhong
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Tyler P Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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6
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Novel Oxidovanadium Complexes with Redox-Active R-Mian and R-Bian Ligands: Synthesis, Structure, Redox and Catalytic Properties. Molecules 2021; 26:molecules26185706. [PMID: 34577177 PMCID: PMC8465707 DOI: 10.3390/molecules26185706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/19/2022] Open
Abstract
A new monoiminoacenaphthenone 3,5-(CF3)2C6H3-mian (complex 2) was synthesized and further exploited, along with the already known monoiminoacenaphthenone dpp-mian, to obtain oxidovanadium(IV) complexes [VOCl2(dpp-mian)(CH3CN)] (3) and [VOCl(3,5-(CF3)2C6H3-bian)(H2O)][VOCl3(3,5-(CF3)2C6H3-bian)]·2.85DME (4) from [VOCl2(CH3CN)2(H2O)] (1) or [VCl3(THF)3]. The structure of all compounds was determined using X-ray structural analysis. The vanadium atom in these structures has an octahedral coordination environment. Complex 4 has an unexpected structure. Firstly, it contains 3,5-(CF3)2C6H3-bian instead of 3,5-(CF3)2C6H3-mian. Secondly, it has a binuclear structure, in contrast to 3, in which two oxovanadium parts are linked to each other through V=O···V interaction. This interaction is non-covalent in origin, according to DFT calculations. In structures 2 and 3, non-covalent π-π staking interactions between acenaphthene moieties of the neighboring molecules (distances are 3.36–3.40 Å) with an estimated energy of 3 kcal/mol were also found. The redox properties of the obtained compounds were studied using cyclic voltammetry in solution. In all cases, the reduction processes initiated by the redox-active nature of the mian or bian ligand were identified. The paramagnetic nature of complexes 3 and 4 has been proven by EPR spectroscopy. Complexes 3 and 4 exhibited high catalytic activity in the oxidation of alkanes and alcohols with peroxides. The yields of products of cyclohexane oxidation were 43% (complex 3) and 27% (complex 4). Based on the data regarding the study of regio- and bond-selectivity, it was concluded that hydroxyl radicals play the most crucial role in the reaction. The initial products in the reactions with alkanes are alkyl hydroperoxides, which are easily reduced to their corresponding alcohols by the action of triphenylphosphine (PPh3). According to the DFT calculations, the difference in the catalytic activity of 3 and 4 is most likely associated with a different mechanism for the generation of ●OH radicals. For complex 4 with electron-withdrawing CF3 substituents at the diimine ligand, an alternative mechanism, different from Fenton’s and involving a redox-active ligand, is assumed.
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7
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Ferretti F, Rota L, Ragaini F. Unexpected coordination behavior of ruthenium to a polymeric α-diimine containing the poly[bis(arylimino)acenaphthene] fragment. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Synthesis, properties, and catalysis of p-block complexes supported by bis(arylimino)acenaphthene ligands. Commun Chem 2020; 3:113. [PMID: 36703406 PMCID: PMC9814787 DOI: 10.1038/s42004-020-00359-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/06/2020] [Indexed: 01/29/2023] Open
Abstract
Bis(arylimino)acenaphthene (Ar-BIAN) ligands have been recognized as robust scaffolds for metal complexes since the 1990 s and most of their coordination chemistry was developed with transition metals. Notably, there have been relatively few reports on complexes comprising main group elements, especially those capitalizing on the redox non-innocence of Ar-BIAN ligands supporting p-block elements. Here we present an overview of synthetic approaches to Ar-BIAN ligands and their p-block complexes using conventional solution-based methodologies and environmentally-benign mechanochemical routes. This is followed by a discussion on their catalytic properties, including comparisons to transition metal counterparts, as well as key structural and electronic properties of p-block Ar-BIAN complexes.
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9
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Mercadé E, Zangrando E, Clotet A, Claver C, Godard C. Novel Chiral PNNP Ligands with a Pyrrolidine Backbone – Application in the Fe‐Catalyzed Asymmetric Transfer Hydrogenation of Ketones. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Elisabet Mercadé
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili Marcel.li Domingo s/n 43007 Tarragona Spain
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Science University of Trieste Via Giorgieri 1 Trieste Italy
| | - Anna Clotet
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili Marcel.li Domingo s/n 43007 Tarragona Spain
| | - Carmen Claver
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili Marcel.li Domingo s/n 43007 Tarragona Spain
- Centre Tecnològic de la Química Marcel.li Domingo s/n 43007 Tarragona Spain
| | - Cyril Godard
- Departament de Química Física i Inorgànica Universitat Rovira i Virgili Marcel.li Domingo s/n 43007 Tarragona Spain
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10
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Zhou M, Li X, Bu D, Lei H. Synthesis, crystal structures and electrochemical properties of Co(II) and Mn(II) complexes with asymmetric bulky BIAN ligands. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Zhai F, Solomon JB, Filatov AS, Jordan RF. Crystal structure of 3-[(2-acetamido-phen-yl)imino]-butan-2-one. Acta Crystallogr E Crystallogr Commun 2018; 74:193-195. [PMID: 29850052 PMCID: PMC5956335 DOI: 10.1107/s2056989018000749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 01/11/2018] [Indexed: 11/12/2022]
Abstract
In the title compound, 3-[(2-acetamido-phen-yl)imino]-butan-2-one, C12H14N2O2, the imine C=N bond is essentially coplanar with the ketone C=O bond in an s-trans conformation. The benzene ring is twisted away from the plane of the C=N bond by 53.03 (14)°. The acetamido unit is essentially coplanar with the benzene ring. In the crystal, mol-ecules are connected into chains along the c axis through C-H⋯O hydrogen bonds, with two adjacent chains being hinged by C-H⋯O hydrogen bonds.
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Affiliation(s)
- Feng Zhai
- Department of Chemistry, The University of Chicago, 5735 South Ellis Ave, Chicago, Il 60637, USA
| | - Joseph B. Solomon
- Department of Chemistry, The University of Chicago, 5735 South Ellis Ave, Chicago, Il 60637, USA
| | - Alexander S. Filatov
- Department of Chemistry, The University of Chicago, 5735 South Ellis Ave, Chicago, Il 60637, USA
| | - Richard F. Jordan
- Department of Chemistry, The University of Chicago, 5735 South Ellis Ave, Chicago, Il 60637, USA
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12
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Villa M, Miesel D, Hildebrandt A, Ragaini F, Schaarschmidt D, Jacobi von Wangelin A. Synthesis and Catalysis of Redox-Active Bis(imino)acenaphthene (BIAN) Iron Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700144] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Matteo Villa
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
| | - Dominique Miesel
- Institute of Chemistry-Inorganic Chemistry; TU Chemnitz; 09107 Chemnitz Germany
| | | | - Fabio Ragaini
- Department of Chemistry; University of Milan; Via C. Golgi 17 20133 Milan Italy
| | - Dieter Schaarschmidt
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
- Current address: Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Axel Jacobi von Wangelin
- Institute of Organic Chemistry; University of Regensburg; Universitaetsstr. 31 93040 Regensburg Germany
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13
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Yu X, Zhu F, Bu D, Lei H. Ferrous complexes supported by sterically encumbered asymmetric bis(arylimino)acenaphthene (BIAN) ligands: synthesis, characterization and screening for catalytic hydrosilylation of carbonyl compounds. RSC Adv 2017. [DOI: 10.1039/c7ra01511a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structurally characterized Fe complexes bearing asymmetric bidentate BIAN ligands were synthesized and their use as room-temperature hydrosilylation precatalyst was reported.
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Affiliation(s)
- Xun Yu
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou 510632
- China
| | - Feifeng Zhu
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou 510632
- China
| | - Donglei Bu
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou 510632
- China
| | - Hao Lei
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou 510632
- China
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14
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Xu B, Ma A, Jia T, Hao Z, Gao W, Mu Y. Synthesis and structural characterization of iron complexes bearing N-aryl-phenanthren-o-iminoquinone ligands. Dalton Trans 2016; 45:17966-17973. [PMID: 27781236 DOI: 10.1039/c6dt03572h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatments of N-aryl-phenanthren-o-iminoquinone (aryl = 2,6-Me2C6H3 (MeL); 2,6-iPr2C6H3 (iPrL)) with iron powder in THF at 75 °C generate complexes [η2L]2Fe[η1LH] (1a, L = MeL; 1b, L = iPrL) in moderate yields. The X-ray crystallography analysis reveals that the molecule of 1b consists of a Fe(iii) center coordinated by three phenanthren-o-iminosemiquinone ligands, two of which are in an η2 fashion while the remaining one is in an η1 fashion. The analysis of the bond parameters of ligands indicates that the η2-fashioned ligands are radical anions and the η1-fashioned one is in an aminephenolato form. Reactions of MeL and iPrL with FeCl2 in THF produce Fe(iii) complexes [L]2FeCl (2a, L = MeL; 2b, L = iPrL) with the two ligands in the radical anionic form. However, similar reactions of PIQ ligands with FeCl2 in CH2Cl2 yield ion-pair complexes {[L]2FeCl}+[FeCl4]- (3a, L = MeL; 3b, L = iPrL), in which the iron center chelated by two neutral ligands can be formulated as Fe(ii). Reduction of 2b with sodium provides a salt-type complex [iPrL2-]2Fe(ii)Na2 (4), in which a high spin Fe(ii) atom is ligated by two amidophenolate ligands, and the sodium atoms attached to the oxygen atoms of ligands are η3-coordinated by the aryl ring in amido moieties.
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Affiliation(s)
- Bin Xu
- College of Chemistry, Jilin University, Changchun, China.
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15
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Schaefer BA, Margulieux GW, Tiedemann MA, Small BL, Chirik PJ. Synthesis and Electronic Structure of Iron Borate Betaine Complexes as a Route to Single-Component Iron Ethylene Oligomerization and Polymerization Catalysts. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00839] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian A. Schaefer
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Grant W. Margulieux
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Margaret A. Tiedemann
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Brooke L. Small
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Paul J. Chirik
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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16
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Wang R, Sui X, Pang W, Chen C. Ethylene Polymerization by Xanthene-Bridged Dinuclear α-Diimine NiII
Complexes. ChemCatChem 2015. [DOI: 10.1002/cctc.201501041] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruikun Wang
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 P.R. China
| | - Xuelin Sui
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 P.R. China
| | - Wenmin Pang
- Hefei National Laboratory for Physical Sciences at the Microscale; University of Science and Technology of China; Hefei 230026 P.R. China
| | - Changle Chen
- Key Laboratory of Soft Matter Chemistry, Chinese Academy of Sciences, Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 P.R. China
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17
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Wekesa FS, Arias-Ugarte R, Kong L, Sumner Z, McGovern GP, Findlater M. Iron-Catalyzed Hydrosilylation of Aldehydes and Ketones under Solvent-Free Conditions. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00630] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francis S. Wekesa
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
| | - Renzo Arias-Ugarte
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
| | - Lydia Kong
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
| | - Zachary Sumner
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
| | - Gregory P. McGovern
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
| | - Michael Findlater
- Texas Tech University, Department of Chemistry & Biochemistry, Lubbock, Texas 79409-1061, United States
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18
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Small BL. Discovery and Development of Pyridine-bis(imine) and Related Catalysts for Olefin Polymerization and Oligomerization. Acc Chem Res 2015; 48:2599-611. [PMID: 26267011 DOI: 10.1021/acs.accounts.5b00252] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
For over 40 years following the polyolefin catalyst discoveries of Hogan and Banks (Phillips) and Ziegler (Max Planck Institute), chemists traversed the periodic table searching for new transition metal and lanthanide-based olefin polymerization systems. Remarkably, none of these "hits" employed iron, that is, until three groups independently reported iron catalysts for olefin polymerization in the late 1990's. The history surrounding the discovery of these catalysts was only the beginning of their uniqueness, as the ensuing years have proven these systems remarkable in several regards. Of primary importance are the pyridine-bis(imine) ligands (herein referred to as PDI), which produced iron catalysts that are among the world's most active for ethylene polymerization, demonstrated "staying power" despite over 15 years of ligand improvement efforts, and generated highly active polymerization systems with cobalt, chromium, and vanadium. Although many ligands have been employed in iron-catalyzed polymerization, the PDI family has thus far provided the most information about iron's capabilities and tendencies. For example, iron systems tend to be highly selective for ethylene over higher olefins, making them strong candidates for producing highly crystalline polyethylene, or highly linear α-olefins. Iron PDI polymerizes propylene with 2,1-regiochemistry via a predominantly isotactic, chain end control mechanism. Because the first insertion proceeds via 1,2-regiochemistry, iron (and cobalt) PDI systems can be tailored to make highly linear dimers of α-olefins by "head-to-head" coupling, resulting from a switch in regiochemistry after the first insertion. Finally, PDI ligands, while not being surpassed in activity, have inspired the development of related ligand families and complexes, such as pendant donor diimines (PDD), which are also highly efficient at producing linear α-olefins. This Account will detail a variety of oligomerization and polymerization results achieved with PDI and PDD catalysts. Our studies on ligand modification are discussed, but numerous ligands have been synthesized by others. Computational approaches, identification of catalyst active sites, noninnocent ligand studies, commercialization efforts, and other outstanding research are only briefly mentioned, at most. The reader is directed to review articles where appropriate, in order to address the cursory treatment of these areas.
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Affiliation(s)
- Brooke L. Small
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
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19
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Gilbert-Wilson R, Chu WY, Rauchfuss TB. Phosphine-iminopyridines as platforms for catalytic hydrofunctionalization of alkenes. Inorg Chem 2015; 54:5596-603. [PMID: 25978588 DOI: 10.1021/acs.inorgchem.5b00692] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of phosphine-diimine ligands were synthesized by the condensation of 2-(diphenylphosphino)aniline (PNH2) with a variety of formyl and ketopyridines. Condensation of PNH2 with acetyl- and benzoylpyridine yielded the Ph2P(C6H4)N═C(R)(C5H4N), respectively abbreviated PN(Me)py and PN(Ph)py. With ferrous halides, PN(Ph)py gave the complexes FeX2(PN(Ph)py) (X = Cl, Br). Condensation of pyridine carboxaldehyde and its 6-methyl derivatives with PNH2 was achieved using a ferrous template, affording low-spin complexes [Fe(PN(H)py(R))2](2+) (R = H, Me). Dicarbonyls Fe(PN(R)py)(CO)2 were produced by treating PN(Me)py with Fe(benzylideneacetone)(CO)3 and reduction of FeX2(PN(Ph)py) with NaBEt3H under a CO atmosphere. Cyclic voltammetric studies show that the [FeL3(CO)2](0/-) and [FeL3(CO)2](+/0) couples are similar for a range of tridentate ligands, but the PN(Ph)py system uniquely sustains two one-electron reductions. Treatment of Fe(PN(Ph)py)X2 with NaBEt3H gave active catalysts for the hydroboration of 1-octene with pinacolborane. Similarly, these catalysts proved active for the addition of diphenylsilane, but not HSiMe(OSiMe3)2, to 1-octene and vinylsilanes. Evidence is presented that catalysis occurs via iron hydride complexes of intact PN(Ph)py.
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Affiliation(s)
- Ryan Gilbert-Wilson
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Wan-Yi Chu
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Thomas B Rauchfuss
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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20
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A new heterotopic Ar-BIAN ligand with a pendant P donor site. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Schaefer BA, Margulieux GW, Small BL, Chirik PJ. Evaluation of Cobalt Complexes Bearing Tridentate Pincer Ligands for Catalytic C–H Borylation. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00044] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian A. Schaefer
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Grant W. Margulieux
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Brooke L. Small
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Paul J. Chirik
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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22
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Recent progresses of late-transition metal complexes with nonsymmetric diimine ligands in ethylene polymerization and oligomerization. CHINESE SCIENCE BULLETIN-CHINESE 2014. [DOI: 10.1007/s11434-014-0279-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Yankey M, Obuah C, Guzei IA, Osei-Twum E, Hearne G, Darkwa J. (Phenoxyimidazolyl-salicylaldimine)iron complexes: synthesis, properties and iron catalysed ethylene reactions. Dalton Trans 2014; 43:13913-23. [DOI: 10.1039/c4dt01886a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(Salicyladimine)iron(iii) pre-catalysts, from iron(ii) precursors, form catalysts for ethylene oligomerisation, polymerisation and alkylation of aromatic solvents by the ethylene oligomers.
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Affiliation(s)
- Margaret Yankey
- Department of Chemistry
- University of Johannesburg
- Auckland Park, South Africa
| | - Collins Obuah
- Department of Chemistry
- University of Johannesburg
- Auckland Park, South Africa
| | - Ilia A. Guzei
- Department of Chemistry
- University of Johannesburg
- Auckland Park, South Africa
- Department of Chemistry
- University of Wisconsin-Madison
| | | | - Giovanni Hearne
- Department of Physics
- University of Johannesburg
- Auckland Park, South Africa
| | - James Darkwa
- Department of Chemistry
- University of Johannesburg
- Auckland Park, South Africa
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24
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Boudier A, Breuil PAR, Magna L, Olivier-Bourbigou H, Braunstein P. Ethylene oligomerization using iron complexes: beyond the discovery of bis(imino)pyridine ligands. Chem Commun (Camb) 2014; 50:1398-407. [DOI: 10.1039/c3cc47834c] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Zell T, Langer R, Iron MA, Konstantinovski L, Shimon LJW, Diskin-Posner Y, Leitus G, Balaraman E, Ben-David Y, Milstein D. Synthesis, Structures, and Dearomatization by Deprotonation of Iron Complexes Featuring Bipyridine-based PNN Pincer Ligands. Inorg Chem 2013; 52:9636-49. [DOI: 10.1021/ic401432m] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Thomas Zell
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Robert Langer
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Mark A. Iron
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Leonid Konstantinovski
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Linda J. W. Shimon
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Yael Diskin-Posner
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Gregory Leitus
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Ekambaram Balaraman
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
| | - David Milstein
- Department of Organic Chemistry and ‡Department of
Chemical Research Support, Weizmann Institute of Science, 76100 Rehovot, Israel
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26
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Hoffmann A, Herres-Pawlis S. Dissection of Different Donor Abilities Within Bis(pyrazolyl)pyridinylmethane Transition Metal Complexes. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Tang X, Huang YT, Liu H, Liu RZ, Shen DS, Liu N, Liu FS. α-Hydroxyimine palladium complexes: Synthesis, molecular structure, and their activities towards the Suzuki–Miyaura cross-coupling reaction. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.01.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Synthesis, structure, and magnetic properties of the halide-bridged dimeric complex [(bpmaL1)Fe(μ-Cl)Cl]2. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Anga S, Paul M, Naktode K, Kottalanka RK, Panda TK. Cobalt (II) and Copper (I) Complexes of Rigid Bidentate [N-(2, 6-Diisopropyl-phenyl)imino]acenapthenone Ligand: Synthesis and Structural Studies. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200189] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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New κ3-PNN′- and κ4-PNN′O-polydentate ligands: Synthesis, coordination and structural studies. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Gao B, Gao W, Wu Q, Luo X, Zhang J, Su Q, Mu Y. Chromium Complexes with Acenaphthene Imine Derivative Ligands Synthesis and Catalysis on Diene Polymerization. Organometallics 2011. [DOI: 10.1021/om200733e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bo Gao
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Wei Gao
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Qiaolin Wu
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Xuyang Luo
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Jingshun Zhang
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Qing Su
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
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32
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Boudier A, Breuil PAR, Magna L, Rangheard C, Ponthus J, Olivier-Bourbigou H, Braunstein P. Novel Catalytic System for Ethylene Oligomerization: An Iron(III) Complex with an Anionic N,N,N Ligand. Organometallics 2011. [DOI: 10.1021/om200197s] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrien Boudier
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, 69360 Solaize, France
| | | | - Lionel Magna
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, 69360 Solaize, France
| | - Claudine Rangheard
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, 69360 Solaize, France
| | - Jérémie Ponthus
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize, 69360 Solaize, France
| | | | - Pierre Braunstein
- Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, F-67081 Strasbourg Cedex, France
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33
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34
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Ikmal Hisham NA, Suleiman Gwaram N, Khaledi H, Mohd Ali H. Dichlorido{2-morpholino-N-[1-(2-pyrid-yl)ethyl-idene]ethanamine-κN,N',N''}manganese(II). Acta Crystallogr Sect E Struct Rep Online 2010; 67:m41. [PMID: 21522562 PMCID: PMC3050125 DOI: 10.1107/s1600536810050221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 12/01/2010] [Indexed: 05/26/2023]
Abstract
In the title compound, [MnCl2(C13H19N3O)], the MnII ion is pentacoordinated in a distorted square-pyramidal geometry. The coordination environment is defined by the N,N′,N′′-tridentate Schiff base ligand and one Cl atom in the basal positions and one Cl atom in the apical position. In the crystal, intermolecular C—H⋯Cl hydrogen bonds link the molecules into a three-dimensional network. An intramolecular C—H⋯Cl hydrogen bond is also observed.
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35
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Small BL, Rios R, Fernandez ER, Gerlach DL, Halfen JA, Carney MJ. Oligomerization of Ethylene Using New Tridentate Iron Catalysts Bearing α-Diimine Ligands with Pendant S and P Donors. Organometallics 2010. [DOI: 10.1021/om1007743] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brooke L. Small
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Ray Rios
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Eric R. Fernandez
- Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Deidra L. Gerlach
- Department of Chemistry, University of Wisconsin−Eau Claire, 105 Garfield Avenue, Eau Claire, Wisconsin 54702, United States
| | - Jason A. Halfen
- Department of Chemistry, University of Wisconsin−Eau Claire, 105 Garfield Avenue, Eau Claire, Wisconsin 54702, United States
| | - Michael J. Carney
- Department of Chemistry, University of Wisconsin−Eau Claire, 105 Garfield Avenue, Eau Claire, Wisconsin 54702, United States
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36
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Ethylene oligomerization by tridentate cobalt complexes bearing pendant donor modified α-diimine ligands. Macromol Res 2010. [DOI: 10.1007/s13233-010-0710-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Tenza K, Hanton MJ, Slawin AMZ. Ethylene Oligomerization Using First-Row Transition Metal Complexes Featuring Heterocyclic Variants of Bis(imino)pyridine Ligands. Organometallics 2009. [DOI: 10.1021/om900280j] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kenny Tenza
- Sasol Technology (U.K.) Ltd, Purdie Building, North Haugh, St Andrews, KY16 9ST, U.K
| | - Martin J. Hanton
- Sasol Technology (U.K.) Ltd, Purdie Building, North Haugh, St Andrews, KY16 9ST, U.K
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38
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Hill NJ, Vargas-Baca I, Cowley AH. Recent developments in the coordination chemistry of bis(imino)acenaphthene (BIAN) ligands with s- and p-block elements. Dalton Trans 2009:240-53. [DOI: 10.1039/b815079f] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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England J, Gondhia R, Bigorra-Lopez L, Petersen AR, White AJP, Britovsek GJP. Towards robust alkane oxidation catalysts: electronic variations in non-heme iron(ii) complexes and their effect in catalytic alkane oxidation. Dalton Trans 2009:5319-34. [DOI: 10.1039/b901390c] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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