1
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Arras J, Calderón-Díaz A, Lebedkin S, Gozem S, McMillen CD, Bhuvanesh N, Stollenz M. Twisted and Disconnected Chains: Flexible Linear Tetracuprous Arrays and a Decanuclear Cu I Cluster as Blue- and Green/Yellow-Light Emitters. Inorg Chem 2024; 63:12943-12957. [PMID: 38935842 PMCID: PMC11256752 DOI: 10.1021/acs.inorgchem.4c01646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024]
Abstract
Defined arrays of transition metal ions embedded in tailored polydentate ligand scaffolds allow for a systematic design of their physical properties. Such molecular strings of closed-shell transition metal centers are particularly interesting for Group 11 metal ions in the oxidation state +1 if they undergo metallophilic d10···d10 contact interactions since these clusters are oftentimes efficient photoluminescence (PL) emitters. Copper is particularly attractive as a sustainable earth-abundant coinage metal source and because of the ability of several CuI complexes to serve as powerful thermally activated delayed fluorescence (TADF) emitters in molecular/organic light-emitting devices (OLEDs). Our combined synthetic, crystallographic, photophysical, and computational study describes a straight tetracuprous array possessing a centrally disconnected CuI2···CuI2 chain and a continuous helically bent CuI4 complex. This molecular helix undergoes a facile rearrangement in diethyl ether solution, yielding an unprecedented nanosized CuI10 cluster (2.9 × 2.0 nm) upon crystallization. All three clusters show either bright blue phosphorescence, TADF, or green/yellow multiband phosphorescence with quantum yields between 6.5 and 67%, which is persistent under hydrostatic pressure up to 30 kbar. Temperature-dependent PL investigations in combination with time-dependent density-functional theory (TD-DFT) calculations and void space analyses of the crystal packings complement a comprehensive correlation between the molecular structures and photoluminescence properties.
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Affiliation(s)
- Janet Arras
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
| | - Alvaro Calderón-Díaz
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
| | - Sergei Lebedkin
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Samer Gozem
- Department
of Chemistry, Georgia State University, 145 Piedmont Ave SE, Atlanta, Georgia 30303, United States
| | - Colin D. McMillen
- Department
of Chemistry, Clemson University, 379 Hunter Laboratories, Clemson, South Carolina 29634-0973, United States
| | - Nattamai Bhuvanesh
- Department
of Chemistry, Texas A&M University, 580 Ross Street, P.O. Box 30012, College Station, Texas 77842-3012, United
States
| | - Michael Stollenz
- Department
of Chemistry and Biochemistry, Kennesaw
State University, 370 Paulding Avenue NW, MD # 1203, Kennesaw, Georgia 30144, United States
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2
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Acuña A, Mallet-Ladeira S, Sotiropoulos JM, Maerten E, Cabrera AR, Baceiredo A, Kato T, Rojas RS, Madec D. Stannylenes and Germylenes Stabilized by Tetradentate Bis(amidine) Ligands with a Rigid Naphthalene Backbone. Molecules 2024; 29:325. [PMID: 38257237 PMCID: PMC10819778 DOI: 10.3390/molecules29020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
An unusual series of germylenes and stannylenes stabilized by new tetradentate bis(amidine) ligands RNC(R')N-linker-NC(R')NR with a rigid naphthalene backbone has been prepared by protonolysis reaction of Lappert's metallylenes [M(HMDS)2] (M = Ge or Sn). Germylenes and stannylenes were fully characterized by NMR spectroscopy and X-ray diffraction analysis. DFT calculations have been performed to clarify the structural and electronic properties associated with tetradentate bis(amidine) ligands. Stannylene L1Sn shows reactivity through oxidation, oxidative addition, and transmetalation reactions, affording the corresponding gallium and aluminum derivatives.
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Affiliation(s)
- Alejandra Acuña
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France; (A.A.); (E.M.); (A.B.); (T.K.)
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile;
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (UAR 2599), 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France;
| | - Jean-Marc Sotiropoulos
- IPREM, UMR 5254, UPPA/CNRS Technopole Helioparc-2, av. Pdt P. Angot, 64053 Pau, Cedex 09, France;
| | - Eddy Maerten
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France; (A.A.); (E.M.); (A.B.); (T.K.)
| | - Alan R. Cabrera
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile;
| | - Antoine Baceiredo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France; (A.A.); (E.M.); (A.B.); (T.K.)
| | - Tsuyoshi Kato
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France; (A.A.); (E.M.); (A.B.); (T.K.)
| | - René S. Rojas
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile;
| | - David Madec
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France; (A.A.); (E.M.); (A.B.); (T.K.)
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3
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Tao Y, She S, Wang X, Wang F, Ji X, Yan B, Chu C, Wang S. Synthesis, structure of dinuclear o-phenylene linked bis(amidinate) rare-earth metal complexes and their catalytic activity towards Strecker reaction. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Arras J, Ugarte Trejo O, Bhuvanesh N, McMillen C, Stollenz M. Hydrogen bonds and dispersion forces serving as molecular locks for tailored Group 11 bis(amidine) complexes. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00443g] [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 flexible polydentate bis(amidine) ligand LH2 operates as a molecular lock for various coinage metal fragments and forms the dinuclear complexes [LH2(MCl)2], M = Cu (1), Au (2), the coordination...
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5
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Guo L, Guo C, Peng S, Song R. Synthesis, structure, and coordination chemistry of a neutral pyrrolyl-functionalized amidinate ligand. NEW J CHEM 2022. [DOI: 10.1039/d1nj05548h] [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 new o-phenylene-bridged ligand incorporating neutral pyrrolyl and amidino moieties was designed and synthesized. The reactivity of the ligand was investigated and showed versatile coordination modes towards alkali- and rare-earth metals.
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Affiliation(s)
- Liping Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Changjia Guo
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Shuqi Peng
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
| | - Renyuan Song
- Anhui Provincial Engineering Laboratory of Silicon-Based Materials, Bengbu University, Bengbu, Anhui 233030, China
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6
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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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7
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Rinke P, Görls H, Kretschmer R. Calcium and Magnesium Bis(β-diketiminate) Complexes: Impact of the Alkylene Bridge on Schlenk-Type Rearrangements. Inorg Chem 2021; 60:5310-5321. [PMID: 33667337 DOI: 10.1021/acs.inorgchem.1c00301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Dinuclear heteroleptic alkaline-earth-metal complexes are interesting synthetic targets because the close proximity of two metals allows for cooperative effects. However, these complexes are also prone to undergoing Schlenk-type rearrangements, affording less-active homoleptic complexes. Here we present the metalation of bis(β-diketimine) ligands possessing flexible bridging groups, i.e., 1,2-ethylene, 1,3-propylene, and trans-1,2-cyclohexylene, using calcium and magnesium precursors. Four mononuclear homoleptic calcium complexes were obtained, highlighting the pronounced tendency of calcium to undergo Schlenk-like redistributions. In the case of magnesium, however, the bridging group plays a crucial role, yielding seven dinuclear heteroleptic complexes but also one mononuclear and one dinuclear homoleptic complexes. In addition, a trinuclear mixed heteroleptic-homoleptic magnesium complex, which is a rare example of an intermediate of the Schlenk equilibrium, was isolated.
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Affiliation(s)
- Philipp Rinke
- Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany.,Jena Center for Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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8
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Rösch A, Seifert F, Vass V, Görls H, Kretschmer R. Synthesis, structure, and catalytic activity of dinuclear aluminium bis(amidinate) and bis(guanidinate) complexes. NEW J CHEM 2021. [DOI: 10.1039/d0nj05007e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The ring-opening polymerization grand prix: Bis(amidinate)s outpaced their bis(guanidinate) competitors and won the race, while the drivers’ engines using acidic co-initiators collapsed before take-off.
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Affiliation(s)
- Andreas Rösch
- Institute of Inorganic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
| | - Fabian Seifert
- Institute of Inorganic and Analytical Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Valentin Vass
- Institute of Inorganic Chemistry
- University of Regensburg
- 93053 Regensburg
- Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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9
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Saltarini S, Villegas-Escobar N, Martínez J, Daniliuc CG, Matute RA, Gade LH, Rojas RS. Toward a Neutral Single-Component Amidinate Iodide Aluminum Catalyst for the CO2 Fixation into Cyclic Carbonates. Inorg Chem 2020; 60:1172-1182. [DOI: 10.1021/acs.inorgchem.0c03290] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sebastián Saltarini
- Laboratorio de Química Inorgánica, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22 6094411, Chile
| | - Nery Villegas-Escobar
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo OHiggins, Santiago 8370854, Chile
| | - Javier Martínez
- Laboratorio de Química Inorgánica, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22 6094411, Chile
- Instituto de Ciencias Químicas, Facultad de Ciencias, Isla Teja, Universidad Austral de Chile, 5090000 Valdivia, Chile
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Ricardo A. Matute
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo OHiggins, Santiago 8370854, Chile
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - René S. Rojas
- Laboratorio de Química Inorgánica, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22 6094411, Chile
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10
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Rösch A, Herzog CM, Schreiner SHF, Görls H, Kretschmer R. Ditopic bis( N, N', N'-substituted 1,2-ethanediamine) ligands: synthesis and coordination chemistry. Dalton Trans 2020; 49:13818-13828. [PMID: 33001083 DOI: 10.1039/d0dt03124k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis of two different types of bis(N,N',N'-substituted 1,2-ethanediamine)s, bridged either through the secondary (type 1) or tertiary (type 2) amine groups is reported. Selected protio-ligands have been applied in subsequent metallation reactions using aluminium, magnesium, tin, and zinc sources allowing to isolate five mononuclear and eight dinuclear complexes. All complexes have been fully characterized and their solid-state structures have been studied by means of single-crystal X-ray diffraction analysis. Nine of the 13 complexes carry reactive alkyl, amide or hydride groups, which indicates their potential as catalysts or supports for (transition) metals.
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Affiliation(s)
- Andreas Rösch
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Christoph M Herzog
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Simon H F Schreiner
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena Philosophenweg 7, 07743 Jena, Germany.
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11
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Rösch A, Schreiner SHF, Schüler P, Görls H, Kretschmer R. Magnesium bis(amidinate) and bis(guanidinate) complexes: impact of the ligand backbone and bridging groups on the coordination behaviour. Dalton Trans 2020; 49:13072-13082. [PMID: 32926063 DOI: 10.1039/d0dt01923b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A library of ten dinucleating bis(amidine) and bis(guanidine) ligands, in which the bridging groups, terminal rests, and backbone substituents were systematically altered, has been synthesized and subsequently applied in metallation reactions using three different magnesium sources. Eight Mg complexes could be isolated and fully characterized, and in seven cases their solid-state structure could be determined by means of single crystal X-ray diffraction analysis. The results evidence a versatile coordination behaviour, which ranges from the first dinuclear heteroleptic magnesium iodide complex to dinuclear homoleptic complexes. These findings indicate the crucial impact of both the ligand and the magnesium source not only on the accessibility of well-defined dinuclear complexes but also on the aggregation in solution and in the solid state.
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Affiliation(s)
- Andreas Rösch
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
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12
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Skvortsov GG, Cherkasov AV, Trifonov AA. Synthesis and Molecular Structure of Binuclear ansa-Bis(amidinate) Ytterbium Complex [1,3-C6H4{NC(Ph)N(SiMe3)}2]3Yb2. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420070088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Kretschmer R. Ligands with Two Monoanionic N,N-Binding Sites: Synthesis and Coordination Chemistry. Chemistry 2020; 26:2099-2119. [PMID: 31755598 PMCID: PMC7064907 DOI: 10.1002/chem.201903442] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 11/07/2022]
Abstract
Polytopic ligands have become ubiquitous in coordination chemistry because they grant access to a variety of mono- and polynuclear complexes of transition metals as well as rare-earth and main-group elements. Nitrogen-based ditopic ligands, in which two monoanionic N,N-binding sites are framed within one molecule, are of particular importance and are therefore the primary focus of this review. In detail, bis(amidine)s, bis(guanidine)s, bis(β-diimine)s, bis(aminotroponimine)s, bis(pyrrolimine)s, and miscellaneous bis(N,N-chelating) ligands are reviewed. In addition to the general synthetic protocols, the application of these ligands is discussed along with their coordination chemistry, the multifarious binding modes, and the ability of these ligands to bridge two (or more) metal(loids).
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Affiliation(s)
- Robert Kretschmer
- Junior Professorship Inorganic Chemistry of Catalysis, Institute of Inorganic and Analytical ChemistryFriedrich Schiller University JenaHumboldtstrasse 807743JenaGermany
- Jena Center for Soft Matter (JCSM)Friedrich Schiller University JenaPhilosophenweg 707743JenaGermany
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14
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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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15
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Wang F, Zhao X, Meng X, Wang S. Rare-earth complexes supported by an ansa-bis(amidinate) ligand with a rigid o-phenylene linker: synthesis, structure, and catalytic activity for polymerization of cyclic esters. Dalton Trans 2019; 48:12193-12198. [PMID: 31334706 DOI: 10.1039/c9dt00365g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A bis(amidinate) ligand with a rigid o-phenylene linker C6H4-1,2-[NC(tBu)NH(C6H5)]2 (1) was successfully employed for the syntheses of rare-earth amides 2-5 in good yields. The structures of the amides were established by X-ray diffraction analysis and revealed that the ligand framework coordinated to the lanthanide atoms in different fashions depending on the central ion size. Larger lanthanide metal ions La3+ and Nd3+ prefer to form dinuclear complexes with one linked bis(amidinate) ligand as a bridge, while the smaller sized Y3+ and Er3+ favor the formation of mononuclear complexes. These complexes exhibited good catalytic activity for ring-opening polymerization of ε-caprolactone and l-lactide and the mononuclear complexes display higher activity.
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Affiliation(s)
- Fenhua Wang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Xu Zhao
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Xianfu Meng
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Shaowu Wang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
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16
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Kazeminejad N, Münzfeld L, Gamer MT, Roesky PW. Mono- and bimetallic amidinate samarium complexes - synthesis, structure, and hydroamination catalysis. Dalton Trans 2019; 48:8153-8160. [PMID: 31070636 DOI: 10.1039/c9dt01418g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In order to investigate the difference between mono- and bimetallic systems in the catalytic hydroamination/cyclization reaction two mono- and bimetallic amidinate samarium catalysts, featuring comparable coordination environments, were synthesized. Both systems comprise two {N(SiMe3)2}- leaving groups to minimize the steric influence of the corresponding amidinate ligand. The bimetallic system is based on a bis(amidinate) 4,6-dibenzofuran derivative, while N,N'-bis(2,6-diisopropylphenyl)benzamidinate was employed as ligand for the monometallic catalyst. For the hydroamination/cyclization reaction five different substrates were investigated. Additionally, kinetic studies were carried out to gain deeper understanding of the mechanism.
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Affiliation(s)
- Neda Kazeminejad
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Luca Münzfeld
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Michael T Gamer
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
| | - Peter W Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, Geb. 30.45, 76131 Karlsruhe, Germany.
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17
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Tolpygin AO, Shavyrin AS, Cherkasov AV, Fukin GK, Del Rosal I, Maron L, Trifonov AA. Alternative (κ 1-N:η 6-arene vs.κ 2-N,N) coordination of a sterically demanding amidinate ligand: are size and electronic structure of the Ln ion decisive factors? Dalton Trans 2019; 48:8317-8326. [PMID: 31111858 DOI: 10.1039/c9dt01162e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The amine elimination reaction of equimolar amounts of ansa-bis(amidine) C6H4-1,2-{NC(tBu)NH(2,6-iPr2C6H3)}2 (L1H) and [(Me3Si)2N]2Yb(THF)2 affords a bis(amidinate) YbII complex [C6H4-1,2-{NC(tBu)N(2,6-iPr2C6H3)}2]Yb(THF) (1) in 68% yield. Complex 1 features a rather rare η1-amido:η6-arene coordination of both amidinate fragments to the YbII ion, resulting in the formation of a bent bis(arene) structure. Oxidation of 1 by I2 regardless of the molar ratio of reagents (2 : 1 or 1 : 1) leads to the formation of the YbIII species [{(2,6-iPr2C6H3)[double bond, length as m-dash]NC(tBu)NH}-C6H4-1,2-{NC(tBu)N(2,6-iPr2C6H3)}]YbI2(THF)2 (2) in which only one amidinate fragment is coordinated to the ytterbium ion in κ2-N,N'-chelating coordination mode, while the second NCN fragment is protonated in the course of the reaction and is not bound to the metal ion. The outcome of the salt metathesis reaction of LaCl3 with lithium amidinates [C6H4-1,2-{NC(tBu)N(2,6-R2C6H3)}2Li2] (R = Me, iPr) is proven to be strongly affected by the substituent 2,6-R2C6H3 on the amidinate nitrogens. When R = iPr, the salt metathesis reaction occurs smoothly and results in the formation of an ate-chloro-amidinate complex [C6H4-1,2-{NC(tBu)N(2,6-iPr2C6H3)}2]La(μ2-Cl)Li(THF)(μ2-Cl)2Li(THF)2 (3) in which the LaIII ion is coordinated by both amidinate fragments in a "classic"κ2-N,N'-chelating fashion. In the case of R = Me, the reaction requires prolonged heating for completion. Moreover, the salt metathesis reaction is accompanied by the fragmentation of the ligand and affords a trinuclear chloro-amidinate complex [C6H4-1,2-{NC(tBu)N(2,6-Me2C6H3)}2]La{[(tBu)C(N-2,6-Me2C6H3)2]La(THF)}2(μ2-Cl)4(μ3-Cl)2 (4) containing one dianionic ansa-bis(amidinate) and two monoanionic [(tBu)C(N-2,6-Me2C6H3)2] amidinate fragments. DFT calculations are conducted to determine the factor that governs this change in coordination mode and, in particular, the effect of the metal oxidation state.
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Affiliation(s)
- Aleksei O Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Andrei S Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Anton V Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Georgy K Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Iker Del Rosal
- Université de Toulouse, INSA, UPS, CNRS-UMR5215, LPCNO, Avenue de Rangueil 135, 31077 Toulouse, France
| | - Laurent Maron
- Université de Toulouse, INSA, UPS, CNRS-UMR5215, LPCNO, Avenue de Rangueil 135, 31077 Toulouse, France
| | - Alexander A Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia and Institute of Organoelement compounds of Russian Academy of Sciences, Vavilova str. 28, 119334, Moscow, Russia.
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18
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Skvortsov GG, Cherkasov AV, Long J, Larionova J, Trifonov AA. Synthesis, structure and magnetic properties of the dinuclear complex [1,3-C6H4{NC(Ph)N(SiMe3)}2]3Dy2 coordinated by ansa-bis(amidinate) ligands with a m-phenylene linker. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.09.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Wang FH, Wang S, Huang JS, Zhang J, Ding CM. Syntheses and Structures of a Class of Bridged Bis(Amidinate)s and Derivatives. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15260497205682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A series of different types of ‘bridge’ linked bis(amidinate)s have been prepared. Reactions of a variety of linked diamines with pivaloyl chloride yielded the corresponding diamides in very high yields. Conversion of the diamides to the diimine chloride is achieved with PCl5 in CH2Cl2. Reactions of the diimine chloride with aniline or t-butyl amine yielded the bis(amidinate)s in good yields, while reaction with pyrrolyl sodium or 2,5-dimethyl pyrrolyl potassium afforded the corresponding derivatives. Their structures were characterised by NMR and HRMS, and some products were further characterised by X-ray crystal structure analysis. It was found that the locations of the hydrogen atoms within the two amidine fragments vary. The structures showed that in the phenylene-linked bis(amidinate)s, the hydrogen atoms were attached to different nitrogen atoms in the amidine groups, and in the cyclohexylene-linked bis(amidinate)s or their derivatives, the C=N of the amidine groups were conjugated with the aromatic rings.
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Affiliation(s)
- Fen-Hua Wang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
| | - Song Wang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
| | - Jiang-Sheng Huang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
| | - Jun Zhang
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
| | - Chun-Mei Ding
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, P.R. China
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20
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Lyubov DM, Cherkasov AV, Fukin GK, Lyssenko KA, Rychagova EA, Ketkov SY, Trifonov AA. Rare-earth metal-mediated PhCN insertion into N,N-bis(trimethylsilyl)naphthalene-1,8-diamido dianion – a synthetic approach to complexes coordinated by ansa-bridged amido-amidinato ligand. Dalton Trans 2018; 47:438-451. [DOI: 10.1039/c7dt03809g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first example of rare earth metal-mediated insertion of PhCN into Si–N bonds with the formation of an amidinato moiety.
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Affiliation(s)
- Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | | | - Elena A. Rychagova
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Sergey Yu. Ketkov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement compounds of Russian Academy of Sciences
- Moscow
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21
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Skvortsov GG, Tolpygin AO, Fukin GK, Long J, Larionova J, Cherkasov AV, Trifonov AA. Rare‐Earth Complexes Coordinated by
ansa
‐Bis(amidinate) Ligands with
m
‐Phenylene, 2,6‐Pyridinediyl, and SiMe
2
Linkers. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700639] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Grigorii G. Skvortsov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Aleksei O. Tolpygin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Jérôme Long
- Institut Charles Gerhardt Montpellier ICGM UMR-5253 CNRS-UM-ENSCM Ingénierie Moléculaire et Nano-Objets Université de Montpellier site Triolet, Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Joulia Larionova
- Institut Charles Gerhardt Montpellier ICGM UMR-5253 CNRS-UM-ENSCM Ingénierie Moléculaire et Nano-Objets Université de Montpellier site Triolet, Place E. Bataillon 34095 Montpellier Cedex 5 France
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603950 Nizhny Novgorod, GSP‐445 Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences 603950 Nizhny Novgorod, GSP‐445 Russia
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences 119991 Moscow, GSP‐1 Russia
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22
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Bradley MA, Birchall C, Blake AJ, Lewis W, Moxey GJ, Kays DL. 1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesised through alkane elimination reactions. Dalton Trans 2017; 46:4101-4110. [PMID: 28276554 DOI: 10.1039/c7dt00471k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C10H6(NSiMePh2H)2 and one or two equivalents of MgnBu2 affords two complexes with differing coordination environments for the magnesium; the reaction between 1,8-C10H6(NSiMePh2H)2 and MgnBu2 in a 1 : 1 ratio affords 1,8-C10H6(NSiMePh2)2{Mg(THF)2} (1), which features a single magnesium centre bridging both ligand nitrogen donors, whilst treatment of 1,8-C10H6(NSiR3H)2 (R3 = MePh2, iPr3) with two equivalents of MgnBu2 affords the bimetallic complexes 1,8-C10H6(NSiR3)2{nBuMg(THF)}2 (R3 = MePh22, R3 = iPr33), which feature four-membered Mg2N2 rings. Similarly, 1,8-C10H6(NSiiPr3)2{MeMg(THF)}2 (4) and 1,8-C10H6(NSiMePh2)2{ZnMe}2 (5) are formed through reactions with the proligands and two equivalents of MMe2 (M = Mg, Zn). The reaction between 1,8-C10H6(NSiMePh2H)2 and two equivalents of MeMgX affords the bimetallic complexes 1,8-C10H6(NSiMePh2)2(XMgOEt2)2 (X = Br 6; X = I 7). Very small amounts of [1,8-C10H6(NSiMePh2)2{IMg(OEt2)}]2 (8), formed through the coupling of two diamidonaphthalene ligands at the 4-position with concomitant dearomatisation of one of the naphthyl arene rings, were also isolated from a solution of 7.
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Affiliation(s)
- Mark A Bradley
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Chris Birchall
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Alexander J Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Graeme J Moxey
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Deborah L Kays
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
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23
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Kazeminejad N, Munzel D, Gamer MT, Roesky PW. Bis(amidinate) ligands in early lanthanide chemistry – synthesis, structures, and hydroamination catalysis. Chem Commun (Camb) 2017; 53:1060-1063. [DOI: 10.1039/c6cc08958e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(amidinate) ligands attached to rigid dibenzofuran and phenanthrene backbones have been introduced into lanthanide chemistry for the first time.
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Affiliation(s)
- Neda Kazeminejad
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Denise Munzel
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Michael T. Gamer
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Peter W. Roesky
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
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24
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25
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26
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Brown JL, Jones MB, Gaunt AJ, Scott BL, MacBeth CE, Gordon JC. Lanthanide(III) Di- and Tetra-Nuclear Complexes Supported by a Chelating Tripodal Tris(Amidate) Ligand. Inorg Chem 2015; 54:4064-75. [DOI: 10.1021/acs.inorgchem.5b00299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Cora E. MacBeth
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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27
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Yakovenko MV, Udilova NY, Glukhova TA, Cherkasov AV, Fukin GK, Trifonov AA. Amido rare-earth complexes supported by an ansa bis(amidinate) ligand with a rigid 1,8-naphthalene linker: synthesis, structures and catalytic activity in rac-lactide polymerization and hydrophosphonylation of carbonyl compounds. NEW J CHEM 2015. [DOI: 10.1039/c4nj01698j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis of rare-earth amides and their catalytic activity in ROP of lactide.
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Affiliation(s)
- Marina V. Yakovenko
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Natalia Yu. Udilova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Tatyana A. Glukhova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
- Nizhny Novgorod
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences
- 603950 Nizhny Novgorod
- Russia
- Nizhny Novgorod State University
- Nizhny Novgorod
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28
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Yakovenko MV, Cherkasov AV, Fukin GK, Trifonov AA. Bis(alkyl) yttrium complex containing a new tridentate amidinate ligand: synthesis and structure. Russ Chem Bull 2014. [DOI: 10.1007/s11172-013-0255-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Tolpygin AO, Skvortsov GG, Cherkasov AV, Fukin GK, Glukhova TA, Trifonov AA. Lanthanide Borohydrido Complexes Supported by
ansa
‐Bis(amidinato) Ligands with a Rigid
o
‐Phenylene Linker: Effect of Ligand Tailoring on Catalytic Lactide Polymerization. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300931] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Aleksei O. Tolpygin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
| | - Grigorii G. Skvortsov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
| | - Tatyana A. Glukhova
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, http://www.iomc.ras.ru
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30
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Bai SD, Liu RQ, Wang T, Guan F, Wu YB, Chao JB, Tong HB, Liu DS. An alkyl-ended ansa-bis(amidine) and solvent-influenced complexation modes of its group IV metal derivatives. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.08.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Skvortsov GG, Fukin GK, Ketkov SY, Cherkasov AV, Lyssenko KA, Trifonov AA. Benzonitrile Insertion into Silylarylamides –
ansa
‐Bis(benzamidinate) Ligand Systems with Rigid
o
‐ and
m
‐Phenylene Linkers in the Synthesis of Lithium and Rare Earth Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300351] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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, Fax: +7‐831‐462‐74‐97, http://www.iomc.ras.ru
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐74‐97, http://www.iomc.ras.ru
| | - Sergey Yu. Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐74‐97, http://www.iomc.ras.ru
- Nizhny Novgorod State Univeristy, Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐74‐97, http://www.iomc.ras.ru
| | - Konstantin A. Lyssenko
- A. N. Nesmeyanov Institute of Elementorganic Compounds of Russian Academy of Sciences, Moscow, Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐74‐97, http://www.iomc.ras.ru
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32
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Fan L, Wang Y, Yao Y, Wu B, Shen Q. Synthesis, Structure, and Catalytic Behavior of Ytterbium Complexes Derived from a Linked Bis(β-ketoiminato) Ligand. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201200565] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Wang C, Zhang X, Xue M, Zhang Y, Shen Q. Unprecedented reaction of bridged bis(guanidinate) lanthanide complexes: sterically induced deprotonation. Dalton Trans 2013; 42:7009-18. [DOI: 10.1039/c3dt32882a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Edelmann FT. Recent Progress in the Chemistry of Metal Amidinates and Guanidinates. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-407692-1.00002-3] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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35
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Luo Y, Lei Y, Fan S, Wang Y, Chen J. Synthesis of mono-amidinate-ligated rare-earth-metal bis(silylamide) complexes and their reactivity with [Ph3C][B(C6F5)4], AlMe3 and isoprene. Dalton Trans 2013; 42:4040-51. [DOI: 10.1039/c2dt32868b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Li M, Hong J, Chen Z, Zhou X, Zhang L. Synthesis, structure and reactivity of dinuclear rare earth metal bis(o-aminobenzyl) complexes bearing a 1,4-phenylenediamidinate co-ligand. Dalton Trans 2013; 42:8288-97. [DOI: 10.1039/c3dt33040k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Tolpygin AO, Shavyrin AS, Cherkasov AV, Fukin GK, Trifonov AA. Chloro and Alkyl Rare-Earth Complexes Supported by ansa-Bis(amidinate) Ligands with a Rigid o-Phenylene Linker. Ligand Steric Bulk: A Means of Stabilization or Destabilization? Organometallics 2012. [DOI: 10.1021/om3004306] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aleksei O. Tolpygin
- 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
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445,
Russia
| | - Georgy K. Fukin
- 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
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38
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Chlupatý T, Padělková Z, Lyčka A, Brus J, Růžička A. Reactivity of lithium n-butyl amidinates towards group 14 metal(II) chlorides providing series of hetero- and homoleptic tetrylenes. Dalton Trans 2012; 41:5010-9. [PMID: 22415327 DOI: 10.1039/c2dt12472f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The new class of homo- and heteroleptic n-butyl-N,N'-disubstituted amidinato group 14 metal(II) complexes were prepared by salt elimination from starting lithium amidinates and metal(II) chlorides both in stoichiometric ratio 2:1 and 1:1, respectively. The target amidinates contain less bulky isopropyl or cyclohexyl as well as a sterically demanding aromatic substituent. Desired 1:1 Pb(II) complexes are not accessible by the described procedure. Ligand transfer from Pb to Sn is taking place if homoleptic Pb(II) compounds are reacted with SnCl(2). Prepared tetrylenes were characterized by (1)H, (13)C, (119)Sn and (207)Pb NMR spectroscopy in C(6)D(6) or THF-d(8). X-Ray diffraction studies of one heteroleptic Ge(II) monomeric where the coordination polyhedron of the three coordinated germanium atoms is a trigonal pyramid, two different dimeric structures of heteroleptic Sn(II) complexes, one amidine hydroiodide byproduct and the oxidation product of the heteroleptic chloro Sn(II) amidinate as a tetranuclear species with two Sn(IV) and two Sn(II) atoms in central Sn(2)O(2) planar ring were performed on appropriate single crystals. The dimer of one of the heteroleptic stannylenes reveals a new type of monomeric units connection, weak Sn-Cl contact and an interaction of the tin atom with delocalized N-C(C)-N system of the amidinato ligand of the second molecule.
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Affiliation(s)
- Tomáš Chlupatý
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
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Yakovenko MV, Trifonov AA, Kirillov E, Roisnel T, Carpentier JF. Lanthanide borohydrides supported by an ansa-bis(amidinate) ligand with a rigid naphthalene linker: Synthesis, structure and catalytic activity in ring-opening polymerization of lactide. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.10.060] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Rauws TRM, Maes BUW. Transition metal-catalyzed N-arylations of amidines and guanidines. Chem Soc Rev 2012; 41:2463-97. [DOI: 10.1039/c1cs15236j] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Edelmann FT. Lanthanide amidinates and guanidinates in catalysis and materials science: a continuing success story. Chem Soc Rev 2012; 41:7657-72. [DOI: 10.1039/c2cs35180c] [Citation(s) in RCA: 275] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Yi W, Zhang J, Li M, Chen Z, Zhou X. Synthesis, Structures, and Reactivity of Yttrium Alkyl and Alkynyl Complexes with Mixed TpMe2/Cp Ligands. Inorg Chem 2011; 50:11813-24. [DOI: 10.1021/ic2019499] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weiyin Yi
- Department of Chemistry, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic
of China
| | - Jie Zhang
- Department of Chemistry, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic
of China
| | - Meng Li
- Department of Chemistry, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic
of China
| | - Zhenxia Chen
- Department of Chemistry, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic
of China
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic
of China
- State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's
Republic of China
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