1
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Kosloski-Oh S, Knight KD, Fieser ME. Enhanced Control of Isoprene Polymerization with Trialkyl Rare Earth Metal Complexes through Neutral Donor Support. Inorg Chem 2024; 63:9464-9477. [PMID: 38063304 PMCID: PMC11134520 DOI: 10.1021/acs.inorgchem.3c03161] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 05/28/2024]
Abstract
The development of catalysts for stereospecific polymerization of 1,3-dienes is an area of interest due to the robust nature of poly(1,3-diene)s' physical and mechanical properties, as well as the material's versatility in many applications. Dialkyl rare earth metal complexes supported by a diverse cast of ligand frameworks are selective for the polymerization of 1,3-dienes and are an exciting option for examination. However, development in this area has been hampered by the focus on complex catalyst systems that are costly to make. In this study, we synthesize a series of simple homoleptic trialkyl rare earth metal precatalysts and highlight their efficacy for isoprene polymerization using 1 or 2 equiv of [Ph3C][B(C6F5)4] activator. We investigated the addition of commercially available in situ donors, leading to the identification of triphenylphosphine as an ideal support to enhance the dispersity control and prevent loss of catalyst activity. We demonstrated how the activation and reaction conditions, including the order/time of reagent addition and donor electronics, had a major impact on the rate, control, and selectivity for the polymerization of 1,3-dienes. Further interrogation of the catalyst system signals the crucial role of triphenylphosphine in providing enhanced stability and control in this living catalyst system.
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Affiliation(s)
- Sophia
C. Kosloski-Oh
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Kai D. Knight
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Megan E. Fieser
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Wrigley
Institute for Environment and Sustainability, University of Southern California, Los Angeles, California 90089, United States
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2
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Delano F, Deshapriya S, Demir S. Guanidinate Yttrium Complexes Containing Bipyridyl and Bis(benzimidazolyl) Radicals. Inorg Chem 2024; 63:9659-9669. [PMID: 38569134 PMCID: PMC11134503 DOI: 10.1021/acs.inorgchem.4c00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/26/2024] [Accepted: 03/06/2024] [Indexed: 04/05/2024]
Abstract
Ancillary ligand scaffolds that sufficiently stabilize a metal ion to allow its coordination to an open-shell ligand are scarce, yet their development is essential for next-generation spin-based materials with topical applications in quantum information science. To this end, a synthetic challenge must be met: devising molecules that enable the binding of a redox-active ligand through facile displacement and clean removal of a weakly coordinating anion. Here, we probe the accessibility of unprecedented radical-containing rare-earth guanidinate complexes by combining our recently discovered yttrium tetraphenylborate complex [{(Me3Si)2NC(NiPr)2}2Y][(μ-η6-Ph)(BPh3)] with the redox-active ligands 2,2'-bipyridine (bpy) and 2,2'-bis(benzimidazole) (Bbim), respectively, under reductive conditions. Our endeavor resulted in the first evidence of guanidinate complexes that contain radicals, namely, a mononuclear bipyridyl radical complex, {(Me3Si)2NC(NiPr)2}2Y(bpy•) (1), and a dinuclear bis(benzimidazolyl) radical-bridged complex, [K(crypt-222)][{(Me3Si)2NC(NiPr)2}2Y]2(μ-Bbim•) (2'). The latter was achieved by an in situ reduction of [{(Me3Si)2NC(NiPr)2}2Y]2(μ-Bbim) (2), which was isolated from a salt metathesis reaction. 1 and 2 were characterized by X-ray crystallography and IR and UV-vis spectroscopy. Variable-temperature electron paramagnetic resonance spectroscopy was applied to gain insight into the distribution of unpaired spin density on 1 and 2'. Density functional theory calculations were conducted on 1 and 2' to elucidate further their electronic structures. The redox activity of 1 and 2' was also probed by electrochemical methods.
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Affiliation(s)
| | | | - Selvan Demir
- Department of Chemistry, Michigan
State University (MSU), 578 South Shaw Lane, East Lansing, Michigan 48824, United States
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3
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Tang Y, Chen H, Chen Y, Chen J, Luo Y. Rare-Earth Metal Complexes Supported by A Tridentate Amidinate Ligand: Synthesis, Characterization, and Catalytic Comparison in Isoprene Polymerization. Inorg Chem 2024; 63:7848-7857. [PMID: 38635372 DOI: 10.1021/acs.inorgchem.4c00488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
To systematically investigate the dependence of the initiating group and metal size on polymerization performance, a family of rare-earth metal bis(alkyl)/bis(benzyl)/bis(amide) complexes supported by a monoanionic tridentate amidinate ligand [(2,6-iPr2C6H3)NC(Ph)N(C6H4-2-OMe]- (HL) were synthesized and well-characterized. Treatment of rare-earth metal tris(alkyl)/tris(benzyl)/tris(amide) complexes Y(CH2C6H4NMe2-o)3 or Y(CH2SiMe3)3(THF)2 or Ln[N(SiHMe2)2]3(THF)x (Ln = Sc, x = 1; Ln = Y, La, Sm, Lu, x = 2) with 1 equiv of HL gave the corresponding mono(amidinate) rare-earth metal bis(alkyl)/bis(benzyl)/bis(amide) complexes [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Y(CH2C6H4NMe2-o)2 (1), [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Y(CH2SiMe3)2(THF) (2), and [(2,6-iPr2C6H4)NC(Ph)N(C6H4-2-OMe)]Ln[N(SiHMe2)2]2(THF)n (Ln = Y, n = 1 (3); Ln = La, n = 1 (4); Ln = Sc, n = 0 (5); Ln = Lu, n = 0 (6); Ln = Sm, n = 0 (7)) in good isolated yields. These complexes were characterized by elemental analysis, NMR spectroscopy, and single-crystal X-ray diffraction. In the presence of excess AlMe3 and on treatment with 1 equiv of [Ph3C][B(C6F5)4], these complexes could serve as precatalysts for cationic polymerization of isoprene, in which the dependence of the polymerization activity and regioselectivity on the initiating group and metal size was observed.
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Affiliation(s)
- Yue Tang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Haonan Chen
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yanjun Chen
- Ningbo Polytechnic, Ningbo 315800, P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering, NingboTech University, Ningbo 315100, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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4
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Wedal JC, Ziller JW, Evans WJ. Trimethyltriazacyclohexane coordination chemistry of simple rare-earth metal salts. Dalton Trans 2023; 52:4787-4795. [PMID: 36938859 DOI: 10.1039/d3dt00242j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Reactions of 1,3,5-trimethyl-triazacyclohexane (Me3tach) with common rare-earth metal iodide, chloride, and triflate salts were examined to determine the capacity of this inexpensive chelate to provide alternative precursors for THF-free reactions. The reaction of LaI3(THF)4 and CeI3(THF)4 with 1,3,5-trimethyl-triazacyclohexane in THF generated toluene soluble (Me3tach)2LnI3, 1-Ln, in which the Ln center has a tri-capped trigonal prismatic geometry with two eclipsed Me3tach rings. Reaction with NdI3(THF)3.5 forms the analogous 1-Nd, but a different structure with one outer sphere iodide, [(Me3tach)2NdI2][I], 2-Nd, is also accessible and has a structure reminiscent of bent metallocenes. The reaction of LaCl3 and Me3tach forms the less soluble (Me3tach)2LaCl3, which has a structure analogous to 1-Ln with eclipsed Me3tach rings. The mono-ring yttrium complex, (Me3tach)YCl3(THF)2, could be isolated from the reaction of YCl3 with Me3tach. Reactions of La(OTf)3 with Me3tach were sensitive to the presence of residual proton sources as exemplified by the isolation of {[(Me3tach)La(μ-OH)(μ-OTf)]2(μ-OTf)2}2, 5-La, and [HMe3tach][(Me3tach)2La-(OTf)4], 6-La. SmI2 reacts with Me3tach to produce the Sm(II) complex, (Me3tach)2SmI2(THF), 7-Sm, but 2-Sm can also form in this reaction. Complexes of the larger 1,4,7-trimethyltriazacyclononane (Me3tacn) ligand, namely (Me3tacn)LaI3(THF), (Me3tacn)YCl3, and (Me3tacn)SmI2(THF) were synthesized for comparison. Several examples of the protonated ligands with simple counteranions, [HMe3tach][X] (X = Cl, Br, I) and [HMe3tacn][OTf], were identified in the course of these studies.
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Affiliation(s)
- Justin C Wedal
- Department of Chemistry, University of California Irvine, Irvine, CA 92617, USA.
| | - Joseph W Ziller
- Department of Chemistry, University of California Irvine, Irvine, CA 92617, USA.
| | - William J Evans
- Department of Chemistry, University of California Irvine, Irvine, CA 92617, USA.
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5
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Zhu M, Chai Z, Lv ZJ, Li T, Liu W, Wei J, Zhang WX. Selective Cleavage of the Strong or Weak C-C Bonds in Biphenylene Enabled by Rare-Earth Metals. J Am Chem Soc 2023; 145:6633-6638. [PMID: 36917557 DOI: 10.1021/jacs.3c01466] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Selective cleavage of C-C bonds within arene rings is of great interest but remains elusive, especially for the molecules possessing the active and inert C-C bonds. Here, we report that the active and inert C-C bonds of biphenylene could be controllably cleaved by the reaction of biphenylene, potassium graphite, and rare-earth complexes with different metal centers. For scandium, the bond activation occurs at the Caryl-Caryl single bond, yielding 9-scandafluorene. For Lu, the reaction goes through ring contraction of the aromatic ring in biphenylene to provide benzopentalene dianionic lutetium. The origin of the selectivity and the reaction mechanism were illustrated by the isolation of intermediates and DFT calculations.
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Affiliation(s)
- Miaomiao Zhu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhengqi Chai
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ze-Jie Lv
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Tianyu Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wei Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Junnian Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare-earth Materials Chemistry and Applications & Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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6
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Moinet EC, Wolf BM, Tardif O, Maichle-Mössmer C, Anwander R. Divalent Lanthanide Tetraisobutylaluminates: Reactivity and Living Isoprene Polymerization. Angew Chem Int Ed Engl 2023; 62:e202219316. [PMID: 36786326 DOI: 10.1002/anie.202219316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/15/2023]
Abstract
Lanthanide (Ln) tetraisobutylaluminates constitute key components in commercial 1,3-diene polymerization catalysts, and likewise are the homogeneous rare-earth-metal catalysts of prime industrial importance. Discrete divalent rare-earth-metal complexes [Ln(AliBu4 )2 ] (Ln=Sm, Eu, Yb) reported here display the first structurally characterized homoleptic metal tetraisobutylaluminates. Treatment of [Ln(AliBu4 )2 ] with C2 Cl6 gives access to SmII /SmIII mixed-valence cluster [Sm6 Cl8 (AliBu4 )6 ] and the YbII cluster [Yb4 Cl4 (AliBu4 )4 ], respectively. Reaction with B(C6 F5 )3 leads to hydride abstraction and formation of arene-coordinated hydroborates such as [Sm{HB(C6 F5 )3 }2 (toluene)2 ]. Complexes [Ln(AliBu4 )2 ] engage in single-component isoprene polymerization, affording high cis-1,4 polyisoprenes with narrow molecular weight distributions. Binary [Yb(AliBu4 )2 ]/[HNPhMe2 ][B(C6 F5 )4 ] fabricates polyisoprene in a perfectly living manner. The catalytically active species are scrutinized by NMR spectroscopy.
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Affiliation(s)
- Eric C Moinet
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Benjamin M Wolf
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Olivier Tardif
- Bridgestone Corporation Ogawahigashi-cho, Kodaira-shi, Tokyo, 187-8531, Japan
| | - Cäcilia Maichle-Mössmer
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Reiner Anwander
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
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7
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Cong X, Huang L, Hou Z. C–H functionalization with alkenes, allenes, and alkynes by half-sandwich rare-earth catalysts. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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8
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Wedal JC, Murillo J, Ziller JW, Scott BL, Gaunt AJ, Evans WJ. Synthesis of Trimethyltriazacyclohexane (Me 3tach) Sandwich Complexes of Uranium, Neptunium, and Plutonium Triiodides: (Me 3tach) 2AnI 3. Inorg Chem 2022; 62:5897-5905. [PMID: 36576312 DOI: 10.1021/acs.inorgchem.2c03306] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
1,3,5-Trimethyl-1,3,5-triazacyclohexane (Me3tach) readily complexes uranium triiodide to form (Me3tach)2UI3. The complex is soluble in THF and arenes and can function as a source of UI3 to form organometallic U(III) complexes. When dissolved in pyridine (py), (Me3tach)2UI3 forms (Me3tach)UI3(py)2. A related complex with the larger 1,4,7-trimethyl-1,4,7-triazacyclononane (Me3tacn) ligand, namely (Me3tacn)UI3(THF), was synthesized for comparison. Since X-ray quality crystals of (Me3tach)2UI3 can be synthesized in high yield even with small-scale reactions, the system is ideal for extension to transuranium elements. Accordingly, the neptunium and plutonium complexes (Me3tach)2NpI3 and (Me3tach)2PuI3 were synthesized in an analogous manner from NpI3(THF)4 and PuI3(THF)4, respectively.
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Affiliation(s)
- Justin C Wedal
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Jesse Murillo
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Joseph W Ziller
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Brian L Scott
- Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Andrew J Gaunt
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - William J Evans
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
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9
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Gao F, Chen J, Cao Q, Li Q, Zheng J, Li X. Three Different Types of Asymmetric Polymerization of Aryl Isocyanides by Using Simple Rare-Earth Metal Trialkyl Precursors. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Feng Gao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Jupeng Chen
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Qingbin Cao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Qiaozhen Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Jie Zheng
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
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10
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Wedal JC, Ziller JW, Evans WJ. Expanding Bismuth Trihalide Coordination Chemistry with Trimethyltriazacyclohexane and Trimethyltriazacyclononane. Inorg Chem 2022; 61:11766-11774. [PMID: 35861795 DOI: 10.1021/acs.inorgchem.2c01483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1,3,5-Trimethyltriazacyclohexane, Me3tach, readily adds to bismuth triiodide to form a variety of new coordination compounds depending on the stoichiometry, solvent, and crystallization conditions. X-ray crystallographic evidence has been obtained for both 2:1 and 1:1 Me3tach:Bi complexes with formulas of [(Me3tach)2BiI2][(Me3tach)BiI4], [(Me3tach)2BiI2]3[Bi2I9][I][HMe3tach]·THF, and (Me3tach)BiI3(py)2. The related chloride structure (Me3tach)BiCl3(py)2 forms from BiCl3. The structure of (Me3tacn)BiI3 with the larger chelate, 1,4,7-trimethyltriazacyclononane, Me3tacn, was obtained for comparison, and the polymeric structure of BiI3 in THF was defined as [BiI(THF)(μ-I)2]n.
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Affiliation(s)
- Justin C Wedal
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Joseph W Ziller
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - William J Evans
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
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11
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Oswald AD, Verrieux L, Breuil PAR, Olivier-Bourbigou H, Thuilliez J, Vaultier F, Taoufik M, Perrin L, Boisson C. Cationic Phenoxyimine Complexes of Yttrium: Synthesis, Characterization, and Living Polymerization of Isoprene. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexis D. Oswald
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Ludmilla Verrieux
- Université de Lyon, Université Claude Bernard Lyon I, CNRS, INSA, CPE, UMR 5246, ICBMS, 1 rue Victor Grignard, F-69622 Villeurbanne cedex, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Pierre-Alain R. Breuil
- IFP Energies nouvelles, Rond-point de l’échangeur de Solaize, BP 3, 69360 Solaize, France
| | | | - Julien Thuilliez
- Manufacture Michelin, 23 place Carmes Déchaux, F-63000 Clermont-Ferrand, France
| | - Florent Vaultier
- Manufacture Michelin, 23 place Carmes Déchaux, F-63000 Clermont-Ferrand, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Mostafa Taoufik
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Lionel Perrin
- Université de Lyon, Université Claude Bernard Lyon I, CNRS, INSA, CPE, UMR 5246, ICBMS, 1 rue Victor Grignard, F-69622 Villeurbanne cedex, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
| | - Christophe Boisson
- Université de Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
- Michelin CP2M ICBMS Joint Research Laboratory, ChemistLab, F-69616 Villeurbanne, France
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12
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Selikhov AN, Pechenkina PV, Cherkasov AV, Nelyubina YV, Kovylina TA, Trifonov AA. π-Carbazolyl supported bis(alkyl) complexes of Sc, Y and La for α-olefin polymerization and hydrogenation. Dalton Trans 2022; 51:9127-9137. [PMID: 35642588 DOI: 10.1039/d2dt01188c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new half-sandwich bis(alkyl) rare-earth metal complexes coordinated by a sterically demanding 1,3,6,8-tetra-tert-butyl-carbazol-9-yl ligand [tBu4Carb]La(CH2C6H5)2(THF) (1-La), [tBu4Carb]Ln(o-NMe2C6H4CH2)2 (Ln = Sc (2-Sc), Y (2-Y), La (2-La), [tBu4Carb]Ln(CH2SiMe3)2(THF) (Ln = Sc (3-Sc), Y (3-Y)), were synthesized. 1-La, 2-La, and 2-Y were prepared by an alkane elimination protocol, while 2-Sc, 3-Sc, and 3-Y became accessible only when salt metathesis reactions of tBu4CarbK with R2Ln(THF)n+[BPh4]- were employed. X-ray analysis revealed that in all complexes the carbazolyl ligand exhibits π-coordination with metal ions. 2-Sc and 3-Sc when activated with [Ph3C][B(C6F5)4] demonstrate excellent activity in α-olefin (octene-1, nonene-1, decene-1 and 1,1-diphenyl-but-1-ene) polymerization. When H2 was used as a chain transfer agent (1 bar, rt) in the presence of 3-Sc/[Ph3C][B(C6F5)4] or 2-Y, 2-La olefin hydrogenation occurred with quantitative conversion.
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Affiliation(s)
- Alexander N Selikhov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137, 49 Tropinina str., Nizhny Novgorod, Russia GSP-445. .,A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991, Moscow, GSP-1, Russia
| | - Polina V Pechenkina
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137, 49 Tropinina str., Nizhny Novgorod, Russia GSP-445.
| | - Anton V Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137, 49 Tropinina str., Nizhny Novgorod, Russia GSP-445.
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991, Moscow, GSP-1, Russia
| | - Tatyana A Kovylina
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137, 49 Tropinina str., Nizhny Novgorod, Russia GSP-445.
| | - Alexander A Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137, 49 Tropinina str., Nizhny Novgorod, Russia GSP-445. .,A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991, Moscow, GSP-1, Russia
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13
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Well-defined phosphate yttrium dialkyl complexes for catalytic stereo-controllable 1,4-polymerization of isoprene. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Wu Y, Lin Z, Fang R, Guo Y, Tu L, Yan Y, Zhang W, Sun H, Gao Z. Titanocene Lewis Acid Complexes with Diversified N,O-Ligands: Selectivity toward Three-Component Friedel–Crafts Reactions of Indoles. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ya Wu
- College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, P. R. China
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Zhiwei Lin
- College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, P. R. China
| | - Rongmiao Fang
- College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, P. R. China
| | - Yingying Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Li Tu
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Yikun Yan
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Weiqiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Huaming Sun
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, Xi’an Key Laboratory of Organometallic Material Chemistry, International Joint Research Center of Shaanxi Province for Organometallic Catalytic Chemistry, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China
- College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, P. R. China
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15
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Selikhov AN, Cherkasov AV, Lyssenko KA, Trifonov AA. Thermally Stable Cationic Bis(benzhydryl) Complexes of Early Lanthanides (La, Ce, Nd). Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander N. Selikhov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Konstantin A. Lyssenko
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, Building 3, 119991 Moscow, Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova Street 28, 119334 Moscow, Russia
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16
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Song C, Chen J, Fu Z, Yan L, Gao F, Cao Q, Li H, Yan X, Chen S, Zhang S, Li X. Syndiospecific Polymerization of o-Methoxystyrene and Its Silyloxy or Fluorine-Substituted Derivatives by HNC-Ligated Scandium Catalysts: Synthesis of Ultrahigh-Molecular-Weight Functionalized Polymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chuang Song
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Jupeng Chen
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Zhijie Fu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Li Yan
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Feng Gao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Qingbin Cao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - He Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Xiangqian Yan
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Shilu Chen
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Shaowen Zhang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
| | - Xiaofang Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
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17
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Ghana P, Spaniol TP, Okuda J. Scandium Reduced Arene Complex: Protonation and Reaction with Azobenzene. Chem Asian J 2021; 16:3170-3178. [PMID: 34390326 PMCID: PMC8596697 DOI: 10.1002/asia.202100684] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/10/2021] [Indexed: 11/10/2022]
Abstract
The reactivity of the reduced anthracene complex of scandium [Li(thf)3 ][Sc{N(tBu)Xy}2 (anth)] (2-anth-Li) (Xy=3,5-Me2 C6 H3 ; anth=C14 H10 2- , thf=tetrahydrofuran) toward Brønsted acid [NEt3 H][BPh4 ] and azobenzene is reported. While a stepwise protonation of 2-anth-Li with two equivalents of [NEt3 H][BPh4 ] afforded the scandium cation [Sc{N(tBu)Xy}2 (thf)2 ][BPh4 ] (3), reduction of azobenzene gave a thermolabile, anionic scandium reduced azobenzene complex [Li(thf)][Sc{N(tBu)Xy}2 (η2 -PhNNPh)] (4), which slowly lost one of the anilide ligands to form the neutral scandium azobenzene complex dimer [Sc{N(tBu)Xy}(μ-η2 :η2 -Ph2 N2 )]2 (5). Exposure of 3 to CO2 produced the scandium carbamate complex [Sc{κ2 -O2 CN(tBu)(Xy)}2 ][BPh4 ] (6) as a result of CO2 insertion into the Sc-N bonds. In an attempt to prepare scandium hydrides, the reaction of 3 with the hydride sources LiAlH4 and Na[BEt3 H] led to the terminal aluminum hydride [AlH{N(tBu)Xy}2 (thf)] (7) and the scandium n-butoxide [Sc{N(tBu)(Xy)}2 (μ-OnBu)] (8) after Sc/Al transmetalation and nucleophilic ring-opening of THF, respectively. All reported compounds isolated in moderate to good yields were fully characterized.
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Affiliation(s)
- Priyabrata Ghana
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152056AachenGermany
| | - Thomas P. Spaniol
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152056AachenGermany
| | - Jun Okuda
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152056AachenGermany
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18
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Affiliation(s)
- Fabio Mazzotta
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Doris Kunz
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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19
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Gurina GA, Kissel AA, Ob'edkov AM, Cherkasov AV, Trifonov AA. Alkyl scandium complexes coordinated by dianionic O,N,N- and O,N,O-ligands derived from Schiff bases. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Seguí P, Aguilera-Correa JJ, Domínguez-Jurado E, Sánchez-López CM, Pérez-Tanoira R, Ocaña AV, Castro-Osma JA, Esteban J, Marcilla A, Alonso-Moreno C, Pérez-Martínez FC, Molina-Alarcón M. A novel bis(pyrazolyl)methane compound as a potential agent against Gram-positive bacteria. Sci Rep 2021; 11:16306. [PMID: 34381091 PMCID: PMC8357914 DOI: 10.1038/s41598-021-95609-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023] Open
Abstract
This study was designed to propose alternative therapeutic compounds to fight against bacterial pathogens. Thus, a library of nitrogen-based compounds bis(triazolyl)methane (1T–7T) and bis(pyrazolyl)methane (1P–11P) was synthesised following previously reported methodologies and their antibacterial activity was tested using the collection strains of Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, and Pseudomonas aeruginosa. Moreover, the novel compound 2P was fully characterized by IR, UV–Vis and NMR spectroscopy. To evaluate antibacterial activity, minimal inhibitory concentrations (MICs), minimal bactericidal concentrations (MBCs), minimum biofilm inhibitory concentrations (MBICs), and minimum biofilm eradication concentrations (MBECs) assays were carried out at different concentrations (2–2000 µg/mL). The MTT assay and Resazurin viability assays were performed in both human liver carcinoma HepG2 and human colorectal adenocarcinoma Caco-2 cell lines at 48 h. Of all the synthesised compounds, 2P had an inhibitory effect on Gram-positive strains, especially against S. aureus. The MIC and MBC of 2P were 62.5 and 2000 µg/mL against S. aureus, and 250 and 2000 µg/mL against E. faecalis, respectively. However, these values were > 2000 µg/mL against E. coli and P. aeruginosa. In addition, the MBICs and MBECs of 2P against S. aureus were 125 and > 2000 µg/mL, respectively, whereas these values were > 2000 µg/mL against E. faecalis, E. coli, and P. aeruginosa. On the other hand, concentrations up to 250 µg/mL of 2P were non-toxic doses for eukaryotic cell cultures. Thus, according to the obtained results, the 2P nitrogen-based compound showed a promising anti-Gram-positive effect (especially against S. aureus) both on planktonic state and biofilm, at non-toxic concentrations.
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Affiliation(s)
- Pedro Seguí
- Department of Otorhinolaryngology, Complejo Hospitalario Universitario, 02006, Albacete, Spain.,Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain
| | | | - Elena Domínguez-Jurado
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Christian M Sánchez-López
- Department of Farmàcia i Tecnologia Farmacèutica i Parasitologia, University of Valencia, Burjassot, 46100, Valencia, Spain.,Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026, Valencia, Spain
| | - Ramón Pérez-Tanoira
- Clinical Microbiology Department, Hospital Universitario Príncipe de Asturias, Madrid, Spain.,Biomedicine and Biotechnology Department, School of Medicine, University of Alcalá de Henares, Madrid, Spain
| | - Ana V Ocaña
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain
| | - José A Castro-Osma
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundacion Jimenez Diaz-UAM, 28040, Madrid, Spain
| | - Antonio Marcilla
- Department of Farmàcia i Tecnologia Farmacèutica i Parasitologia, University of Valencia, Burjassot, 46100, Valencia, Spain.,Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe-Universitat de València, 46026, Valencia, Spain
| | - Carlos Alonso-Moreno
- NanoCRIB Unit, Centro Regional de Investigaciones Biomédicas, 02008, Albacete, Spain.,School of Pharmacy, University of Castilla-La Mancha, 02008, Albacete, Spain
| | - Francisco C Pérez-Martínez
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain.
| | - Milagros Molina-Alarcón
- Instituto de Investigación en Discapacidades Neurológicas (IDINE), University of Castilla-La Mancha, 02001, Albacete, Spain.,Department of Nursing, University of Castilla-La Mancha, 02071, Albacete, Spain
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21
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Yamauchi Y, Nagai S, Terada T, Hoshimoto Y, Ogoshi S. Sm(II)-mediated Single-electron Reduction of Pentafluorophenylcopper(I). CHEM LETT 2021. [DOI: 10.1246/cl.210202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuhiro Yamauchi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shun Nagai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tomoya Terada
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoichi Hoshimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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22
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Rad'kova NY, Kovylina TA, Cherkasov AV, Lyssenko KA, Ob'edkov AM, Trifonov AA. Coordination Features of the 1,3,5‐Triazapentadienyl Ligand in Alkyl Complexes of Rare‐Earth Metals. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Natalia Yu. Rad'kova
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Tatyana A. Kovylina
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Konstantin A. Lyssenko
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
- M.V. Lomonosov Moscow State University Chemistry Department Leninskie Gory 119991 Moscow Russia
| | - Anatoly M. Ob'edkov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
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23
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Rad'kova NY, Skvortsov GG, Cherkasov AV, Fukin GK, Kovylina TA, Ob'edkov AM, Trifonov AA. Bis(alkyl) Sc and Y Complexes Supported by Tri‐ and Tetradentate Amidinate Ligands: Synthesis, Structure, and Catalytic Activity in α‐Olefin and Isoprene Polymerization. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Natalia Yu. Rad'kova
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Grigorii G. Skvortsov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Tatyana A. Kovylina
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Anatoly M. Ob'edkov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina Street 49, GSP-445 603950 Nizhny Novgorod Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova Street 28 119334 Moscow Russia
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24
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Tsurugi H, Mashima K. Renaissance of Homogeneous Cerium Catalysts with Unique Ce(IV/III) Couple: Redox-Mediated Organic Transformations Involving Homolysis of Ce(IV)-Ligand Covalent Bonds. J Am Chem Soc 2021; 143:7879-7890. [PMID: 33904711 DOI: 10.1021/jacs.1c02889] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advances in the catalytic application of cerium complexes were achieved through controlling the Ce(IV/III) redox couple. Although Ce(IV) complexes have been extensively investigated as stoichiometric oxidants in organic synthesis on the basis of their highly positive redox potentials, these complexes can be used as catalysts, not only by introducing supporting ligands around the coordination sphere of cerium, but also by taking advantage of the photoresponsive properties of Ce(IV) and Ce(III) species. Cerium is highly abundant, comparable to that of some first-row transition metals such as copper, nickel, and zinc. Cerium complexes are new and promising homogeneous catalyst candidates for a variety of organic transformations under mild reaction conditions. They are typically used to activate dioxygen to oxidize organic compounds and applied for organic radical generation using the photoresponsive character of Ce(IV) carboxylates and alkoxides as well as electronic transition of Ce(III), in which homolysis of Ce(IV)-ligand covalent bonds is an important step for the overall catalytic cycle. In this Perspective, we first review the early discovery of Ce(OAc)4-mediated oxidative transformations to emphasize the importance of Ce(IV)-OAc bond homolysis in various C-C bond-forming reactions and its relation to recent developments. We then focus on the fundamental importance of Ce(IV) reactivity involving thermal and photoassisted homolysis of the Ce(IV)-ligand covalent bond and the developments regarding Ce(IV/III) redox changes in catalytic reactions together with our recent findings on cerium-based catalysis.
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Affiliation(s)
- Hayato Tsurugi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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25
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DMAO-activated Rare-earth Metal Catalysts for Styrene and Its Derivative Polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2583-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Herrero Álvarez N, Bauer D, Hernández-Gil J, Lewis JS. Recent Advances in Radiometals for Combined Imaging and Therapy in Cancer. ChemMedChem 2021; 16:2909-2941. [PMID: 33792195 DOI: 10.1002/cmdc.202100135] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Indexed: 12/14/2022]
Abstract
Nuclear medicine is defined as the use of radionuclides for diagnostic and therapeutic applications. The imaging modalities positron emission tomography (PET) and single-photon emission computed tomography (SPECT) are based on γ-emissions of specific energies. The therapeutic technologies are based on β- -particle-, α-particle-, and Auger electron emitters. In oncology, PET and SPECT are used to detect cancer lesions, to determine dosimetry, and to monitor therapy effectiveness. In contrast, radiotherapy is designed to irreparably damage tumor cells in order to eradicate or control the disease's progression. Radiometals are being explored for the development of diagnostic and therapeutic radiopharmaceuticals. Strategies that combine both modalities (diagnostic and therapeutic), referred to as theranostics, are promising candidates for clinical applications. This review provides an overview of the basic concepts behind therapeutic and diagnostic radiopharmaceuticals and their significance in contemporary oncology. Select radiometals that significantly impact current and upcoming cancer treatment strategies are grouped as clinically suitable theranostics pairs. The most important physical and chemical properties are discussed. Standard production methods and current radionuclide availability are provided to indicate whether a cost-efficient use in a clinical routine is feasible. Recent preclinical and clinical developments and outline perspectives for the radiometals are highlighted in each section.
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Affiliation(s)
- Natalia Herrero Álvarez
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - David Bauer
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Javier Hernández-Gil
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.,Biomedical MRI/MoSAIC, Department of Imaging and Pathology, Katholieke Universiteit, Herestraat 49, 3000, Leuven, Belgium
| | - Jason S Lewis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.,Department of Radiology, Weill Cornell Medical College, 1300 York Avenue, New York, NY, 10065, USA.,Department of Pharmacology, Weill-Cornell Medical College, New York, NY, 10065, USA
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27
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Zhang Y, Qiu W, Yao Y. Synthesis and characterization of β-diketiminato lanthanide amide complexes and their catalytic activity toward L-lactide polymerization. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Anga S, Acharya J, Chandrasekhar V. An Unsymmetric Imino-Phosphanamidinate Ligand and its Y(III) Complex: Synthesis, Characterization, and Catalytic Hydroboration of Carbonyl Compounds. J Org Chem 2021; 86:2224-2234. [PMID: 33290079 DOI: 10.1021/acs.joc.0c02383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An imino-phosphanamide ligand, [NHIiPr2Me2P(Ph)NH-2,6-iPr2C6H3] (LH), containing two different N-substituents was prepared by the direct reaction of the lithium salt of N-heterocyclic imine (NHI) with phenylchloro-2,6-diisopropylphenyl phosphanamine, PhP(Cl)NH-2,6-iPr2-C6H3. Reaction of LH with Y(N(SiMe3)2)3 afforded the heteroleptic complex, [{L}Y(N(SiMe3)2)2] (1), by elimination of HN(SiMe3)2. Compound 1 was characterized by multinuclear NMR and X-ray crystallography. In the complex, the Y(III) center was found to be tetracoordinate in a distorted tetrahedral geometry. The ligand, imino-phosphanamidinate, [L]-, functions in a chelating manner, and its coordination to Y(III) results in a distorted 4-membered YPN2 ring. As a proof of principle of its activity, 1 was used as a precatalyst for the hydroboration of various aldehydes and ketones using HBpin as the hydrogen source. The hydroboration reaction was rapid and clean even with low catalyst loadings (0.01-0.1 mol %). In addition, a very good functional group tolerance was observed in these reactions.
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Affiliation(s)
- Srinivas Anga
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India
| | - Joydev Acharya
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046, Hyderabad, India.,Department of Chemistry, IIT Kanpur, Kanpur 208016, India
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Skvortsov GG, Cherkasov AV, Vorozhtsov DL, Shchegravina ES, Trifonov AA. Yttrium and Lithium Keto-β-Diketiminate Complexes [{2,6-Me2C6H3N=C(Me)}2CС(tert-Bu)=O]2Y(μ2-Cl)2Li(THF)2 and {[{2,6-Me2C6H3N=C(Me)}2CС(tert-Bu)=O]Li(THF)}n. Synthesis, Molecular Structures, and Catalytic Activity in ε-Caprolactone Polymerization. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s107032842102007x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
The reaction of lithium β-diketiminate [{2,6-Me2C6H3N=CMe}2CH]Li with benzophenone in toluene at 25°C affords the coordination complex [{2,6-Me2C6H3N=CMe}2CH]Li(Ph2C=O) (I). New keto-β-diketimine {2,6-Me2C6H3N=C(Me)}2CHC(tert-Bu)=O (II) is synthesized by the reaction of tert-Bu(C=O)Cl with [{2,6-Me2C6H3N=CMe}2CH]Li. The metallation of keto-β-diketimine II with n-butyllithium in THF at 0°C gives lithium keto-β-diketiminate {[{2,6-Me2C6H3N=C(Me)}2CС(tert-Bu)=O]Li(THF)}n (III). The exchange reaction of YCl3 with compound III (molar ratio 1 : 2, THF) affords the yttrium bis(keto-diketiminate) complex [{2,6-Me2C6H3N=C(Me)}2CС(tert-Bu)=O]2Y(μ2-Cl)2L-(THF)2 (IV). The molecular structures of complexes I, III, and IV are determined by X-ray diffraction analysis (CIF files CCDC nos. 2001131 (I), 2001132 (III), and 2001133 (IV)). Complex IV in the crystalline state exists as an ate complex with one LiCl molecule. Complexes I, III, and IV are catalysts of ring-opening polymerization of ε-caprolactone in toluene at 25°С.
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30
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Alshamrani AFA, Santoro O, Prior TJ, Alamri MA, Stasiuk GJ, Elsegood MRJ, Redshaw C. Scandium calix[ n]arenes ( n = 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies. Dalton Trans 2021; 50:8302-8306. [PMID: 34100050 DOI: 10.1039/d1dt01330k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interaction of [Sc(OR)3] (R = iPr or triflate) with p-tert-butylcalix[n]arenes, where n = 4, 6, or 8, affords a number of intriguing structural motifs, which are relatively non-toxic (cytotoxicity evaluated against cell lines HCT116 and HT-29) and a number were capable of the ring opening polymerization (ROP) of cyclohexene oxide.
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Affiliation(s)
- Abdullah Fahad A Alshamrani
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK. and Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Madina, Saudi Arabia
| | - Orlando Santoro
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Timothy J Prior
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Mohammed A Alamri
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
| | - Graeme J Stasiuk
- Department of Imaging Chemistry and Biology, School of Biomedical Engineering and Imaging, King's College London, London, SE1 7EH, UK
| | - Mark R J Elsegood
- Chemistry Department, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK
| | - Carl Redshaw
- Plastics Collaboratory, Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
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31
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Zhang F, Gong M, Xie H, Luo Y. La(CH 2C 6H 4NMe 2- o) 3-catalyzed reduction of esters to alcohols with pinacolborane. NEW J CHEM 2021. [DOI: 10.1039/d1nj03732c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
La(CH2C6H4NMe2-o)3/HBpin is an efficient catalytic system for the hydroborative reduction of esters to alcohols under mild conditions.
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Affiliation(s)
- Fangcao Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Mingliang Gong
- The Barstow School Ningbo Campus, Ningbo 315201, P. R. China
| | - Hongzhen Xie
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yunjie Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo 315211, P. R. China
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32
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Zhong Y, Li M, Deng M, Gong M, Xie H, Luo Y. Redox-controlled syndio-specific polymerization of styrene catalyzed by ferrocenyl functionalized half-sandwich scandium complexes. Dalton Trans 2020; 50:346-354. [PMID: 33313616 DOI: 10.1039/d0dt03680c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Redox-controlled polymerization is one of the new and efficient strategies to precisely construct the microstructures of polymeric materials, and thus has received increasing attention in the chemical community. Salt metathesis of ScCl3 with 1 equiv. of Fc(1-C9H6)Li (where Fc = ferrocenyl group), followed by the addition of 2 equiv. of LiCH2C6H4NMe2-o in THF at room temperature gave the ferrocenyl functionalized half-sandwich scandium bis(o-dimethylaminobenzyl) complex [Fc(1-C9H6)]Sc(CH2C6H4NMe2-o)2 (1) in 89% isolated yield. This complex was characterized by elemental analysis, FT-IR spectroscopy, NMR spectroscopy and single-crystal X-ray diffraction. Treatment of 1 with 1 equiv. of [Ph3C][B(C6F5)4] in THF generated the THF-coordinated cationic half-sandwich scandium mono(o-dimethylaminobenzyl) complex {[Fc(1-C9H6)]Sc(CH2C6H4NMe2-o)}{[B(C6F5)4]} (2-THF2). Switching in situ between the oxidized and reduced forms of active THF-free species (originally generated from 1/[Ph3C][B(C6F5)4] in situ) resulted in the redox-controlled syndio-specific polymerization of styrene.
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Affiliation(s)
- Yi Zhong
- School of Materials Science and Chemical Engineering, Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo 315211, P. R. China.
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33
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Vaughn BA, Koller AJ, Chen Z, Ahn SH, Loveless CS, Cingoranelli SJ, Yang Y, Cirri A, Johnson CJ, Lapi SE, Chapman KW, Boros E. Homologous Structural, Chemical, and Biological Behavior of Sc and Lu Complexes of the Picaga Bifunctional Chelator: Toward Development of Matched Theranostic Pairs for Radiopharmaceutical Applications. Bioconjug Chem 2020; 32:1232-1241. [PMID: 33284001 DOI: 10.1021/acs.bioconjchem.0c00574] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The radioactive isotopes scandium-44/47 and lutetium-177 are gaining relevance for radioimaging and radiotherapy, resulting in a surge of studies on their coordination chemistry and subsequent applications. Although the trivalent ions of these elements are considered close homologues, dissimilar chemical behavior is observed when they are complexed by large ligand architectures due to discrepancies between Lu(III) and Sc(III) ions with respect to size, chemical hardness, and Lewis acidity. Here, we demonstrate that Lu and Sc complexes of 1,4-bis(methoxycarbonyl)-7-[(6-carboxypyridin-2-yl)methyl]-1,4,7-triazacyclononane (H3mpatcn) and its corresponding bioconjugate picaga-DUPA can be employed to promote analogous structural features and, subsequently, biological properties for coordination complexes of these ions. The close homology was evidenced using potentiometric methods, computational modeling, variable temperature mass spectrometry, and pair distribution function analysis of X-ray scattering data. Radiochemical labeling, in vitro stability, and biodistribution studies with Sc-47 and Lu-177 indicate that the 7-coordinate ligand environment of the bifunctional picaga ligand is compatible with biological applications and the future investigation of β-emitting, picaga-chelated Sc and Lu isotopes for radiotherapy.
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Affiliation(s)
- Brett A Vaughn
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Angus J Koller
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Zhihengyu Chen
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Shin Hye Ahn
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - C Shaun Loveless
- Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Shelbie J Cingoranelli
- Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Yi Yang
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Anthony Cirri
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Christopher J Johnson
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Suzanne E Lapi
- Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, 100 Nicolls Road, Stony Brook, New York 11794, United States
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Sheng W, Xu X, Zhou S, Zhang X, Huang Z, Du J, Zhang L, Wei Y, Zhu X, Cui P, Wang S. Synthesis and Reactivity of NNNNN-Pincer Multidentate Pyrrolyl Rare-Earth-Metal Amido-Chloride or Dialkyl Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Weiming Sheng
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Xiaolong Xu
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Shuangliu Zhou
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Xiuli Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Zeming Huang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Jun Du
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Lijun Zhang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Yun Wei
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Xiancui Zhu
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Peng Cui
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Shaowu Wang
- Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
- Anhui Laboratory of Functional Complexes for Materials Chemistry and Application, College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People’s Republic of China
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35
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Bathellier A, Moreno D, Maron L, Dinoi C, Rosal I. Grafting of Lanthanum Complexes on a Functionalized Graphene Surface: Theoretical Investigation on Ethylene and 1,3‐Butadiene Homo‐ and Co‐Polymerization. Chemistry 2020; 26:13213-13225. [DOI: 10.1002/chem.202001056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Adrien Bathellier
- INSA, UPS, CNRS (UMR 5215), Institut National des, Sciences Appliquées, LPCNO (IRSAMC) Université de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Diego Moreno
- INSA, UPS, CNRS (UMR 5215), Institut National des, Sciences Appliquées, LPCNO (IRSAMC) Université de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Laurent Maron
- INSA, UPS, CNRS (UMR 5215), Institut National des, Sciences Appliquées, LPCNO (IRSAMC) Université de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Chiara Dinoi
- INSA, UPS, CNRS (UMR 5215), Institut National des, Sciences Appliquées, LPCNO (IRSAMC) Université de Toulouse 135 avenue de Rangueil 31077 Toulouse France
| | - Iker Rosal
- INSA, UPS, CNRS (UMR 5215), Institut National des, Sciences Appliquées, LPCNO (IRSAMC) Université de Toulouse 135 avenue de Rangueil 31077 Toulouse France
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36
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Selikhov AN, Boronin EN, Cherkasov AV, Fukin GK, Shavyrin AS, Trifonov AA. Tris(benzhydryl) and Cationic Bis(benzhydryl) Ln(III) Complexes: Exceptional Thermostability and Catalytic Activity in Olefin Hydroarylation and Hydrobenzylation with Substituted Pyridines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000782] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexander N. Selikhov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences 28 Vavilova str. 119991 Moscow, GSP-1 Russia
| | - Egor N. Boronin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
| | - Andrey S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603137 49 Tropinina str. GSP-445 Nizhny Novgorod Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences 28 Vavilova str. 119991 Moscow, GSP-1 Russia
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37
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Jiang W, Zhang L, Zhang L. Synthesis, Structure, and Reactivity of Monoguanidinate Rare‐Earth Metal Aminobenzyl Enolate Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wen Jiang
- Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science Anhui Normal University 241000 Wuhu Anhui China
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Jiangwan Campus Fudan University 200438 Shanghai China
| | - Li‐Jun Zhang
- Key Laboratory of Functional Molecular Solids Ministry of Education Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science Anhui Normal University 241000 Wuhu Anhui China
| | - Li‐Xin Zhang
- Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Jiangwan Campus Fudan University 200438 Shanghai China
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38
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Wang Y, Zhou C, Cheng J. Binuclear Scandium Initiators for the Syndiospecific Triblock Copolymerization of Styrene with ε-Caprolactone. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02602] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yang Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Chulu Zhou
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230039, China
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39
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Wang C, Chen J, Xu W, Mou Z, Yao Y, Luo Y. Bimetallic Arylamide-Ligated Rare-Earth Metal Complexes: Synthesis, Characterization, and Stereo-Selectively Switchable Property in 2-Vinylpyridine Polymerization. Inorg Chem 2020; 59:3132-3141. [DOI: 10.1021/acs.inorgchem.9b03495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chaopan Wang
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, P. R. China
| | - Wei Xu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Zehuai Mou
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering & Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yunjie Luo
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, P. R. China
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40
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Recent Advances in Rare Earth Complexes Containing N-Heterocyclic Carbenes: Synthesis, Reactivity, and Applications in Polymerization. Catalysts 2020. [DOI: 10.3390/catal10010071] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
N-heterocyclic carbenes (NHCs) are ubiquitous ancillary ligands employed in metal-catalyzed homogeneous reactions and polymerization reactions. Of significance is the use of NHCs as the supporting ligand in second- and third-generation Grubbs catalysts for their application in olefin metathesis and ring-opening metathesis polymerization. While the applications of transition metal catalysts ligated with NHCs in polymerization chemistry are well-documented, the use of analogous rare earth (Ln = Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) catalysts in this area remains under-developed, despite the unique role of rare earth elements in regio- and stereo-specific (co)polymerization reactions. By using hetero-atom-tethered chelating NHCs and, more recently, the employment of other structurally related NHCs, NHC-ligated Ln complexes have proven to be promising and fruitful catalysts for selective polymerization reactions. This review summarizes the recent developments in the coordination chemistry of Ln complexes containing NHCs and their catalytic performance in polymerization.
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41
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Li M, Zhang J, Chen J, Yao Y, Luo Y. Rare‐earth metal derivatives supported by aminophenoxy ligand: Synthesis, characterization and catalytic performance in lactide polymerization. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Min Li
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
| | - Jie Zhang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Jue Chen
- School of Biological and Chemical Engineering, Ningbo Institute of TechnologyZhejiang University Ningbo 315100 China
| | - Yingming Yao
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China
| | - Yunjie Luo
- School of Material Science and Chemical EngineeringNingbo University Ningbo 315211 China
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42
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Guo C, Li M, Chen J, Luo Y. Highly selective redistribution of primary arylsilanes to secondary arylsilanes catalyzed by Ln(CH2C6H4NMe2-o)3@SBA-15. Chem Commun (Camb) 2020; 56:117-120. [DOI: 10.1039/c9cc07493g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The organometallic–inorganic hybrid materials Ln(CH2C6H4NMe2-o)3@SBA-15 (Ln = La, Y) were prepared, which demonstrated extremely high selectivity (>99%) in catalyzing the redistribution of primary arylsilanes to secondary arylsilanes.
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Affiliation(s)
- Chenjun Guo
- School of Material Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Min Li
- School of Material Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Jue Chen
- School of Biological and Chemical Engineering
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo 315100
- P. R. China
| | - Yunjie Luo
- School of Material Science and Chemical Engineering
- Ningbo University
- Ningbo 315211
- P. R. China
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43
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Gurina GA, Kissel AA, Lyubov DM, Luconi L, Rossin A, Tuci G, Cherkasov AV, Lyssenko KA, Shavyrin AS, Ob'edkov AM, Giambastiani G, Trifonov AA. Bis(alkyl) scandium and yttrium complexes coordinated by an amidopyridinate ligand: synthesis, characterization and catalytic performance in isoprene polymerization, hydroelementation and carbon dioxide hydrosilylation. Dalton Trans 2020; 49:638-650. [DOI: 10.1039/c9dt04338a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly versatile and robust organolanthanides as catalysts or catalyst precursors for a variety of challenging transformations.
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44
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45
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Song T, Liu N, Tong X, Li F, Mu X, Mu Y. Half-sandwich rare-earth metal complexes bearing a C 5Me 4-C 6H 4-o-CH 2NMe 2 ligand: synthesis, characterization and catalytic properties for isoprene, 1-hexene and MMA polymerization. Dalton Trans 2019; 48:17840-17851. [PMID: 31777884 DOI: 10.1039/c9dt04029c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new ortho-dimethylaminomethylphenyl-tetramethylcyclopentadienyl ligand C5Me4H-C6H4-o-CH2NMe2 (HL) and a series of rare-earth metal complexes bearing this ligand were synthesized. Of these complexes, two binuclear alkyl complexes [(C5Me4-C6H4-o-CH2N(Me)CH2-μ)Ln(CH2SiMe3)]2 (Ln = Sc (1a) and Y (1b)) were obtained from the alkane elimination reaction of the free ligand with Ln(CH2SiMe3)3(THF)2, followed by an intramolecular C-H activation process of a NMe group in the ligand with a CH2SiMe3 group, two binuclear dichloro complexes (C5Me4-C6H4-o-CH2NMe2)2Y2Cl4[LiCl(THF)2] (2a) and [(C5Me4-C6H4-o-CH2NMe2)LuCl(μ-Cl)]2 (2b) were synthesized by the reaction of anhydrous yttrium or lutetium trichloride with the lithium salt of the ligand LiL, and the binuclear bis(borohydrido) complexes [(C5Me4-C6H4-o-CH2NMe2)Ln(μ-BH4)BH4]2 (Ln = Sm (3a) and Nd (3b)) were synthesized by the reaction of Ln(BH4)3(THF)3 (Ln = Sm and Nd) with the lithium salt of the ligand. The molecular structures of all complexes 1a, 1b, 2a, 2b, 3a and 3b were determined by single-crystal X-ray crystallography. Upon activation with AlR3/Ph3CB(C6F5)4, MAO or MMAO, the binuclear alkyl complexes 1a and 1b show good catalytic activity for isoprene cis-1,4 enriched regioselective polymerization and moderate catalytic activity for 1-hexene polymerization. Complexes 3a and 3b were studied as catalysts for methyl methacrylate polymerization reaction under different conditions and were found to show moderate to high catalytic activity.
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Affiliation(s)
- Tingting Song
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Ning Liu
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Xiaobo Tong
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Feng Li
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Xiaoyue Mu
- The 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
- The 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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46
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Skvortsov GG, Shavyrin AS, Kovylina TA, Cherkasov AV, Trifonov AA. Rare‐Earth Amido and Borohydrido Complexes Supported by Tetradentate Amidinate Ligands: Synthesis, Structure, and Catalytic Activity in Polymerization of Cyclic Esters. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900897] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Grigorii G. Skvortsov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Andrei S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Tatyana A. Kovylina
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49 603950 Nizhny Novgorod, GSP‐445 Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences 28 Vavilova str. 119991 Moscow, GSP1 Russia
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47
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Lv ZJ, Huang Z, Shen J, Zhang WX, Xi Z. Well-Defined Scandacyclopropenes: Synthesis, Structure, and Reactivity. J Am Chem Soc 2019; 141:20547-20555. [DOI: 10.1021/jacs.9b11631] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ze-Jie Lv
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhe Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jinghang Shen
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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48
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Selikhov AN, Shavyrin AS, Cherkasov AV, Fukin GK, Trifonov AA. Thermally Stable Half-Sandwich Benzhydryl Ln(II) (Ln = Sm, Yb) Complexes Supported by Sterically Demanding Carbazolyl and Fluorenyl Ligands. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00624] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexander N. Selikhov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, GSP-1, Russia
| | - Andrey S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, 49 Tropinina str., 603137 Nizhny Novgorod, GSP-445, Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, GSP-1, Russia
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49
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Vasanthakumar A, Emslie DJ, Britten JF. Alkyl yttrium complexes of doubly cyclometallated xanthene- and naphthalene-backbone bis(phosphinimine) ligands. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120980] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Affiliation(s)
- Dylan J. Walsh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Michael G. Hyatt
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Susannah A. Miller
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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