Titanium Imido Complexes via Displacement of -SiMe3 and C-H Bond Activation in a Ti(III) Amido Complex, Promoted by a Cyclic (Alkyl)(Amino) Carbene (cAAC).
Sign Up to like & getrecommendations! Published in 2017 at "European journal of inorganic chemistry"
DOI: 10.1002/ejic.201700295
Abstract: A strong σ-donating cyclic (alkyl)(amino) carbene (cAAC) triggers rearrangement of the silyl(aryl) amido ligand -N(SiMe3)Dipp (Dipp = 2,6-diisopropylphenyl) in the coordination sphere of titanium(III) to afford a novel zwitterionic titanium imido complex with a TiCH2SiMe2[cAAC]… read more here.
Keywords: imido; amino carbene; alkyl amino; titanium ... See more keywords
Vanadium(V) imido chlorides and n-propoxides — Towards a rational design of vanadium imido precatalysts for ethylene polymerization
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2020.121665
Abstract: Abstract Vanadium(V) imido complexes are widely used in olefin polymerization and oligomerization. In this report we present the synthesis and the results of ethylene polymerization studies for a series of vanadium(V) imido complexes with various… read more here.
Keywords: imido; vanadium imido; ethylene polymerization; imido chlorides ... See more keywords
Molybdenum(VI) bis-imido Complexes of Dipyrromethene Ligands.
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DOI: 10.1021/acs.inorgchem.0c01051
Abstract: We report the synthesis of high-valent molybdenum(VI) bis-imido complexes 1-4 with dipyrromethene (DPM) supporting ligands of the general formula (DPMR)Mo(NR')2Cl (R, R' = mesityl (Mes) or tert-butyl (tBu)). The electrochemical and chemical properties of 1-4… read more here.
Keywords: imido; molybdenum bis; imido complexes; bis imido ... See more keywords
Redox-Controlled and Reversible N-N Bond Forming and Splitting with an IronIV Terminal Imido Ligand.
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DOI: 10.1021/acs.inorgchem.1c01509
Abstract: Oxidation of the low-spin FeIV imido complex [{(tBupyrr)2py}Fe═NAd] (1) ((tBupyrr)2py2- = 2,6-bis(3,5-di-tert-butyl-pyrrolyl)pyridine, Ad = 1-adamantyl) with AgOAc or AgNO3 promotes reductive N-N bond coupling of the former imido nitrogen with a pyrrole nitrogen to form… read more here.
Keywords: imido; bond; tbupyrr; imido ligand ... See more keywords
[3 + 2] Cycloadditions and Retrocycloadditions of Niobium Imido Complexes: An Experimental and Computational Mechanistic Study.
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DOI: 10.1021/acs.inorgchem.2c00428
Abstract: We demonstrate reactivity between a β-diketiminate-supported niobium(III) imido complex and alkyl azides to form niobatetrazene complexes (BDI)Nb(NtBu)(RNNNNR) (BDI = N,N-bis(2,6-diisopropylphenyl)-3,5-dimethyl-β-diketiminate; R = cyclohexyl (1), benzyl (2)). Intriguingly, niobatetrazene complexes 1 and 2 can be interconverted… read more here.
Keywords: niobium imido; imido; cycloadditions retrocycloadditions; bis imido ... See more keywords
Spectroscopic and Computational Studies of Spin States of Iron(IV) Nitrido and Imido Complexes.
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DOI: 10.1021/acs.inorgchem.7b00512
Abstract: High-oxidation-state metal complexes with multiply bonded ligands are of great interest for both their reactivity as well as their fundamental bonding properties. This paper reports a combined spectroscopic and theoretical investigation into the effect of… read more here.
Keywords: imido; state; imido complexes; spin states ... See more keywords
Synthesis, Reactivity, and Insights into the Lewis Acidity of Mononuclear Titanocene Imido Complexes Bearing Sterically Demanding Terphenyl Moieties
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DOI: 10.1021/acs.organomet.0c00452
Abstract: The titanocene imido complex 2 with a m-terphenyl moiety is synthesized by reacting Cp2Ti(η2-Me3SiC2SiMe3) (1) with m-terphenyl azide. Subsequent reactivity studies with tetrahydrofuran, pyridine, ... read more here.
Keywords: imido; insights lewis; reactivity insights; synthesis reactivity ... See more keywords
H–H and N–H Bond Cleavages of Dihydrogen and Ammonia by a Bifunctional Imido (NH)-Bridged Diiridium Complex: A DFT Study
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DOI: 10.1021/acs.organomet.7b00581
Abstract: The mechanisms of H–H and N–H bond cleavages of dihydrogen and ammonia mediated by the diiridium μ2-imido complex [(Cp*Ir)2(μ2-H)(μ2-NH)]+ (A; Cp* = η5-C5Me5) were theoretically investigated with the density functional theory (DFT) method. Both oxidative… read more here.
Keywords: imido; bond; dihydrogen ammonia; cleavages dihydrogen ... See more keywords
What Factors Control the Reactivity of Cobalt–Imido Complexes in C–H Bond Activation via Hydrogen Abstraction?
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DOI: 10.1021/acscatal.6b02694
Abstract: Metal–imido complexes are critical intermediates in transition metal-catalyzed C–H amination reactions. Discerning the factors that control their reactivity, however, remains largely open for exploration, particularly for the territory of cobalt–imido’s. Herein we describe a systematic… read more here.
Keywords: imido; cobalt imido; cobalt; imido complexes ... See more keywords
New Volatile Tantalum Imido Precursors with Carboxamide Ligands
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DOI: 10.1021/acsomega.1c03659
Abstract: A series of Ta(V) tBu-imido/N-alkoxy carboxamide complexes, TaCl2(NtBu)(pyridine)(edpa) (1), TaCl(NtBu)(edpa)2 (2), Ta(NtBu)(edpa)3 (3), TaCl2(NtBu)(pyridine)(mdpa) (4), and Ta(NtBu)(mdpa)3 (5), were successfully synthesized by metathesis reactions between Ta(NtBu)Cl3(py)2 and several equivalents of Na(edpa) (edpaH = N-ethoxy-2,2-dimethylpropanamide) and… read more here.
Keywords: imido; carboxamide ligands; spectroscopy; volatile tantalum ... See more keywords
Alkali Metal Ions Dictate the Structure and Reactivity of an Iron(II) Imido Complex.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.1c11429
Abstract: The presence of redox innocent metal ions has been proposed to modulate the reactivity of metal ligand multiple bonds; however, insight from structure/function relationships is limited. Here, alkali metal reduction of the Fe(III) imido complex… read more here.
Keywords: ph2b tbuim; metal ions; imido; reactivity ... See more keywords