The Role of L‐Ligands in Silica‐Supported Ti Oxo/Imido Heterometathesis Catalysts
Sign Up to like & getrecommendations! Published in 2024 at "Applied Organometallic Chemistry"
DOI: 10.1002/aoc.7746
Abstract: We report here the preparation and characterization of new well‐defined silica‐supported Ti imido complexes that present an L‐ligand variation in a structure of currently the most active oxo/imido heterometathesis catalyst (≡SiO)Ti(=NtBu)(Me2Pyr)(py)2 (1s), where py is… read more here.
Keywords: oxo imido; imido heterometathesis; imido; role ligands ... See more keywords
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.
Sign Up to like & getrecommendations! Published in 2020 at "Inorganic chemistry"
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.
Sign Up to like & getrecommendations! Published in 2021 at "Inorganic chemistry"
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.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
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
Lewis Base-Enhanced C–H Bond Functionalization Mediated by a Diiron Imido Complex
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DOI: 10.1021/acs.inorgchem.4c03922
Abstract: Herein, we investigate the effects of ligand design on the nuclearity and reactivity of metal–ligand multiply bonded (MLMB) complexes to access an exclusively bimetallic reaction pathway for C–H bond functionalization. To this end, the diiron… read more here.
Keywords: fe2 phdbf; imido complex; bond functionalization; diiron imido ... See more keywords
Spectroscopic and Computational Studies of Spin States of Iron(IV) Nitrido and Imido Complexes.
Sign Up to like & getrecommendations! Published in 2017 at "Inorganic chemistry"
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
Sign Up to like & getrecommendations! Published in 2017 at "Organometallics"
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