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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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2
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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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3
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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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4
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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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5
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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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6
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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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7
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Calderón‐Díaz A, Arras J, Miller ET, Bhuvanesh N, McMillen CD, Stollenz M. Ethylene‐Bridged Tetradentate Bis(amidines): Supramolecular Assemblies through Hydrogen Bonding and Photoluminescence upon Deprotonation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alvaro Calderón‐Díaz
- Department of Chemistry and Biochemistry Kennesaw State University 370 Paulding Avenue NW, MD1203 30144 Kennesaw GA USA
| | - Janet Arras
- Department of Chemistry and Biochemistry Kennesaw State University 370 Paulding Avenue NW, MD1203 30144 Kennesaw GA USA
| | - Ethan T. Miller
- Department of Chemistry and Biochemistry Kennesaw State University 370 Paulding Avenue NW, MD1203 30144 Kennesaw GA USA
| | - Nattamai Bhuvanesh
- Department of Chemistry Texas A&M University 580 Ross Street, P.O. Box 30012 77842‐3012 College Station TX USA
| | - Colin D. McMillen
- Department of Chemistry Clemson University 379 Hunter Laboratories 29634‐0973 Clemson SC USA
| | - Michael Stollenz
- Department of Chemistry and Biochemistry Kennesaw State University 370 Paulding Avenue NW, MD1203 30144 Kennesaw GA USA
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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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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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O'Dea C, Ugarte Trejo O, Arras J, Ehnbom A, Bhuvanesh N, Stollenz M. Ethylene-Bridged Hexadentate Bis(amidines) and Bis(amidinates) with Variable Binding Sites. J Org Chem 2019; 84:14217-14226. [PMID: 31560534 DOI: 10.1021/acs.joc.9b01908] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Hexadentate bis(amidines) form versatile networks of hydrogen bonds both in solid state and solution, as revealed by X-ray crystallography, IR, and NMR spectroscopy. Moreover, the corresponding bis(amidinates) produce blue and green emissions in THF solution. Tethered tetradentate bis(amidines) have emerged in coordination chemistry, enantioselective catalysis, as building blocks for polyfunctional heterocycles, and in photoluminescent materials. The next generation of flexible bis(amidine)/bis(amidinate) platforms with up to six N-donor sites has now been established.
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Affiliation(s)
- Connor O'Dea
- Department of Chemistry and Biochemistry , Kennesaw State University , 370 Paulding Avenue NW , MD #1203, Kennesaw , Georgia 30144 , United States
| | - Omar Ugarte Trejo
- Department of Chemistry and Biochemistry , Kennesaw State University , 370 Paulding Avenue NW , MD #1203, Kennesaw , Georgia 30144 , United States
| | - Janet Arras
- Department of Chemistry and Biochemistry , Kennesaw State University , 370 Paulding Avenue NW , MD #1203, Kennesaw , Georgia 30144 , United States
| | - Andreas Ehnbom
- Department of Chemistry , Texas A&M University , 580 Ross Street , P.O. Box 30012, College Station , Texas 77842-3012 , 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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11
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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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Tolpygin AO, Cherkasov AV, Fukin GK, Trifonov AA. Synthesis of New Bulky Bis(amidine) with the Conformationally Rigid meta-Phenylene Bridge and Its Dilithium Derivative [1,3-C6H4{NC(Ph)N(2,6-iso-Pr2C6H3)}2]Li2(TMEDA)2. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419040080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Cao W, Liu X, Feng X. Chiral organobases: Properties and applications in asymmetric catalysis. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.05.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Novotný M, Švec P, Růžičková Z, Růžička A. Direct access to non-symmetric lithium nitriloamidinate and disymmetric dilithium bisamidinate complexes from 1,3- or 1,4- dicyanobenzene and lithium amides. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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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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Tolpygin AO, Luconi L, Shavyrin AS, Tuci G, Cherkasov AV, Rossin A, Fukin GK, Giambastiani G, Trifonov AA. (Amido)‐ and (Chlorido)titanium and ‐zirconium Complexes Coordinated by
ansa
‐Bis(amidinate) Ligands with a Rigid
o
‐Phenylene Linker. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aleksei O. Tolpygin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, GSP‐445 630950 Nizhny Novgorod Russia
| | - Lapo Luconi
- Institute of Chemistry of OrganoMetallic Compounds ICCOM‐CNR Via Madonna del Piano 10 50019 Sesto Fiorentino, Florence Italy
| | - Andrei S. Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, GSP‐445 630950 Nizhny Novgorod Russia
| | - Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds ICCOM‐CNR Via Madonna del Piano 10 50019 Sesto Fiorentino, Florence Italy
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, GSP‐445 630950 Nizhny Novgorod Russia
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds ICCOM‐CNR Via Madonna del Piano 10 50019 Sesto Fiorentino, Florence Italy
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, GSP‐445 630950 Nizhny Novgorod Russia
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds ICCOM‐CNR Via Madonna del Piano 10 50019 Sesto Fiorentino, Florence Italy
- Kazan Federal University 420008 Kazan Russian Federation
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, GSP‐445 630950 Nizhny Novgorod Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova str. 28 119334 Moscow Russia
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Novotný M, Švec P, Růžičková Z, Růžička A. Structure of non-symmetric lithium amidinate complexes prepared by addition of lithium amides to various nitriles. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Stollenz M, Raymond JE, Pérez LM, Wiederkehr J, Bhuvanesh N. Highly Luminescent Linear Complex Arrays of up to Eight Cuprous Centers. Chemistry 2016; 22:2396-405. [DOI: 10.1002/chem.201503869] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Stollenz
- Department of Chemistry and Biochemistry; Kennesaw State University; 370 Paulding Avenue NW, MD1203 Kennesaw GA 30144 USA
- Department of Chemistry; Texas A&M University; P.O. Box 30012 College Station TX 77842-3012 USA
| | - Jeffery E. Raymond
- Department of Chemistry; Texas A&M University; P.O. Box 30012 College Station TX 77842-3012 USA
- Laboratory for Synthetic-Biologic Interactions; Department of Chemistry; Texas A&M University; P.O. Box 30012, College Station TX 77842-3012 USA
| | - Lisa M. Pérez
- Department of Chemistry; Texas A&M University; P.O. Box 30012 College Station TX 77842-3012 USA
- Laboratory for Molecular Simulation; Department of Chemistry; Texas A&M University; P.O. Box 30012, College Station TX 77842-3012 USA
| | - Jessica Wiederkehr
- Department of Chemistry; Texas A&M University; P.O. Box 30012 College Station TX 77842-3012 USA
| | - Nattamai Bhuvanesh
- Department of Chemistry; Texas A&M University; P.O. Box 30012 College Station TX 77842-3012 USA
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Rad'kov V, Roisnel T, Trifonov A, Carpentier JF, Kirillov E. Neutral and Cationic Alkyl and Amido Group 3 Metal Complexes of Amidine-Amidopyridinate Ligands: Synthesis, Structure, and Polymerization Catalytic Activity. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402362] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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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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22
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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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23
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Rad’kov V, Dorcet V, Carpentier JF, Trifonov A, Kirillov E. Alkylyttrium Complexes of Amidine–Amidopyridinate Ligands. Intramolecular C(sp3)–H Activation and Reactivity Studies. Organometallics 2013. [DOI: 10.1021/om400027d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Vasily Rad’kov
- Organometallics: Materials and
Catalysis, Institut des
Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Rennes, France
- G. A. Razuvaev Institute
of Organometallic Chemistry of RAS, Nizhny Novgorod, Russia
| | - Vincent Dorcet
- Centre de Diffractométrie
X, Institut des Sciences
Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Rennes, France
| | - Jean-François Carpentier
- Organometallics: Materials and
Catalysis, Institut des
Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Rennes, France
| | - Alexander Trifonov
- G. A. Razuvaev Institute
of Organometallic Chemistry of RAS, Nizhny Novgorod, Russia
| | - Evgeny Kirillov
- Organometallics: Materials and
Catalysis, Institut des
Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Rennes, France
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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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25
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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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26
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Yan L, Liu H, Wang J, Zhang Y, Shen Q. Divalent lanthanide complexes supported by the bridged bis(amidinates) L Me3SiN(Ph)CN(CH2)3NC(Ph)NSiMe3]: synthesis, molecular structures and one-electron-transfer reactions. Inorg Chem 2012; 51:4151-60. [PMID: 22409351 DOI: 10.1021/ic202505d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metathesis reactions of YbI(2) with Li(2)L (L = Me(3)SiN(Ph)CN(CH(2))(3)NC(Ph)NSiMe(3)) in THF at a molar ratio of 1:1 and 1:2 both afforded the Yb(II) iodide complex [{YbI(DME)(2)}(2)(μ(2)-L)] (1), which was structurally characterized to be a dinuclear Yb(II) complex with a bridged L ligand. Treatment of EuI(2) with Li(2)L did not afford the analogous [{EuI(DME)(2)}(2)(μ(2)-L)], or another isolable Eu(II) complex, but the hexanuclear heterobimetallic cluster [{Li(DME)(3)}(+)](2)[{(EuI)(2)(μ(2)-I)(2)(μ(3)-L)(2)(Li)(4)}(μ(6)-O)](2-) (2) was isolated as a byproduct in a trace yield. The rational synthesis of cluster 2 could be realized by the reaction of EuI(2) with Li(2)L and H(2)O in a molar ratio of 1:1.5:0.5. The reduction reaction of LLnCl(THF)(2) (Ln = Yb and Eu) with Na/K alloy in THF gave the corresponding Ln(II) complexes [Yb(3)(μ(2)-L)(3)] (3) and [Eu(μ(2)-L)(THF)](2) (4) in good yields. An X-ray crystal structure analysis revealed that each L in complex 3 might adopt a chelating ligand bonding to one Yb atom and each Yb atom coordinates to an additional amidinate group of the other L and acts as a bridging link to assemble a macrocyclic structure. Complex 4 is a dimer in which the two monomers [Eu(μ(2)-L)(THF)] are connected by two μ(2)-amidinate groups from the two L ligands. Complex 3 reacted with CyN═C═NCy and diazabutadienes [2,6-(i)Pr(2)C(6)H(3)N═CRCR═NC(6)H(3)(i)Pr(2)-2,6] (R═H, CH(3)) (DAD) as a one-electron reducing agent to afford the corresponding Yb(III) derivatives: the complex with an oxalamidinate ligand [LYb{(NCy)(2)CC(NCy)(2)}YbL] (5) and the complexes containing a diazabutadiene radical anion [LYb((i)Pr(2)C(6)H(3)NCRCRNC(6)H(3)(i)Pr(2))] (R = H (6), R = CH(3) (7)). Complexes 5-7 were confirmed by an X-ray structure determination.
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Affiliation(s)
- Lijuan Yan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People's Republic of China
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27
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Rad'kov VY, Skvortsov GG, Lyubov DM, Cherkasov AV, Fukin GK, Shavyrin AS, Cui D, Trifonov AA. Dialkyl Rare Earth Complexes Supported by Potentially Tridentate Amidinate Ligands: Synthesis, Structures, and Catalytic Activity in Isoprene Polymerization. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101440] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vassily Yu. Rad'kov
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Grigorii G. Skvortsov
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Dmitry M. Lyubov
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Andrei S. Shavyrin
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry ofRussian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +007‐831‐4627497
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28
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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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29
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Benndorf P, Jenter J, Zielke L, Roesky PW. Chiral lutetium benzamidinate complexes. Chem Commun (Camb) 2011; 47:2574-6. [DOI: 10.1039/c0cc04962j] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Yakovenko MV, Cherkasov AV, Fukin GK, Cui D, Trifonov AA. Lanthanide Complexes Coordinated by a Dianionic Bis(amidinate) Ligand with a Rigid Naphthalene Linker. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000330] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Skvortsov GG, Tolpyguin AO, Fukin GK, Cherkasov AV, Trifonov AA. Dinuclear Chlorido‐, Alkyl(chlorido)‐, and Hydridoyttrium Complexes Supported by μ‐Bridging‐Silyl‐Linked Bis(amidinate) Ligands. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901161] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [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: +7‐831‐462‐7497
| | - Alexei O. Tolpyguin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐7497
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐7497
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐7497
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina 49, 603950 Nizhny Novgorod, GSP‐445, Russia, Fax: +7‐831‐462‐7497
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32
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Bai SD, Tong HB, Guo JP, Zhou MS, Liu DS, Yuan SF. Diverse coordination behaviors of the silyl-linked bis(amidinate) ligand [SiMe2{NC(Ph)N(Ph)}2]2− to zirconium center. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.08.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Bai SD, Tong HB, Guo JP, Zhou MS, Liu DS. Coordination chemistry of group 4 metal compounds with mixed-ligand, silyl-linked bis(amidinate) ligand and cyclopentadienyl. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.05.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Platel RH, Hodgson LM, White AJP, Williams CK. Synthesis and Characterization of a Series of Bis(oxo/thiophosphinic)diamido Yttrium Complexes and Their Application as Initiators for Lactide Ring-Opening Polymerization. Organometallics 2007. [DOI: 10.1021/om7004194] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rachel H. Platel
- Department of Chemistry, Imperial College London, London, SW7 2AZ, U.K
| | - Linda M. Hodgson
- Department of Chemistry, Imperial College London, London, SW7 2AZ, U.K
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Ahmed SA, Hill MS, Hitchcock PB, Mansell SM, St John O. DACH-Bridged (DACH =trans-1,2-Diaminocyclohexane) Bis(iminophosphonamide) Derivatives of Groups 3 and 13 and Their Use in the Enantiomorphic Polymerization of Methyl Methacrylate. Organometallics 2007. [DOI: 10.1021/om060860+] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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