- 6-Arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)-iminopyridylmetal (Fe and Co) complexes as highly active precatalysts for ethylene polymerization: Influence of metal and/or substituents on the active, thermostable performance of their complexes and resul
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A series of 6-arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)iminopyridines and their iron(II) and cobalt(II) complexes (Fe1–Fe5, Co1–Co5) were synthesized and routinely characterized as were Co3 and Co5 complexes, studied by single crystal X-ray crystallo
- Gao, Jiahao,Lin, Wenhua,Liu, Hua,Ma, Yanping,Sun, Wen-Hua,Zhang, Liping,Zhang, Qiuyue
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Read Online
- SELF-ASSEMBLED MICROCAPSULES WITH STIMULI-RESPONSIVE ORGANIC LIGANDS
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Self-assembled organic ligand functionalized microcapsules encapsulating one or more substrates, which release the substrates upon activation with a power source, are provided. Compositions that include these microcapsules, as well as methods of making th
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Page/Page column 55
(2020/06/10)
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- One-Pot, One-Step Precatalysts through Mechanochemistry
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The development and implementation of transition-metal-based precatalysts have played crucial roles in modern organic synthesis. However, while the use of such species greatly improves sustainability, their preparative routes often rely on multiple time-,
- Shaw, Thomas E.,Mathivathanan, Logesh,Jurca, Titel
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supporting information
p. 4066 - 4070
(2019/11/03)
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- Pyridine diimine-based dinuclear metal coordination compound, preparation method and applications thereof
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The invention belongs to the technical field of polyolefin catalysts, and particularly relates to a pyridine diimine-based dinuclear metal coordination compound, a preparation method and applicationsthereof. According to the present invention, the coordin
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Paragraph 0107-0109
(2019/10/01)
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- Mechanochemical routes for the synthesis of acetyl- A nd bis-(imino)pyridine ligands and organometallics
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Organometallic precatalysts play a pivotal role in organic synthesis. However, their preparation often relies on multiple time, energy, and solvent intensive steps, including the synthesis of supporting organic ligand structures, and finally installation
- Shaw, Thomas E.,Shultz, Lorianne R.,Garayeva, Louiza R.,Blair, Richard G.,Noll, Bruce C.,Jurca, Titel
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supporting information
p. 16876 - 16884
(2019/01/03)
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- OXO-NITROGENATED COMPLEX OF LANTHANIDES, CATALYIC SYSTEM COMPRISING SAID OXO-NITROGENATED COMPLEX AND PROCESS FOR THE (CO) POLYMERIZATION OF CONJUGATED DIENES
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An oxo-nitrogenated complex of lanthanides having general formula (I) or (II): Said oxo-nitrogenated complex of lanthanides having general formula (I) or (II) can be advantageously used in a catalytic system for the (co)polymerization of conjugated dienes
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Page/Page column 36; 37
(2018/03/24)
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- Di- and trinuclear iron/titanium and iron/zirconium complexes with heterocyclic ligands as catalysts for ethylene polymerization
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The properties of polyolefin resins depend very much on their molecular weights, the amount of side chain branchings and molecular weight distributions. One way to obtain such tailored products in only one reaction step consists in the application of dissymmetric multi nuclear catalysts with different active sites. Since every active site is producing its own polymer, a “molecular blending” is the result. In order to reach this goal, a variety of mono, di- and trinuclear complexes of iron, titanium and zirconium, containing 2,6-bis(aryliminoethyl)pyridine and phenoxyimine building blocks have been synthesized and characterized. The reaction of iodo functionalized 2,6-bis(arylimino-ethyl)pyridine derivatives with alkyne functionalized phenoxyimine compounds via Sonogashira cross-coupling reactions results in ligand precursors that can provide coordination sites for two different metals. Trinuclear complexes with the combinations Ti/Fe and Zr/Fe, each molecule containing two iron atoms in two 2,6-bis(aryliminoethyl)pyridine units, gave the best ethylene polymerization results. Due to fast ligand exchange reactions, dinuclear iron/titanium complexes could not be isolated from reactions of mono(phenoxyimine) titanium complexes and the coupled bis(chelate) ligand precursor. Since the metal centers show their best performances at different polymerization temperatures, the compositions (and, therefore, the molecular weight distributions) of the desired polyethylenes may be adjusted by a simple change of the reaction temperature.
- G?rl, Christian,Betthausen, Eva,Alt, Helmut G.
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- Acetyliminopyridineiron(III) complexes immobilized in fluorotetrasilicic mica interlayer as efficient catalysts for oligomerization of ethylene
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As new heterogeneous catalysts, the 2-acetyl-6-{1-[(2,3,6-trisubstituted phenyl)imino]ethyl}pyridineiron(III) complexes immobilized in the fluorotetrasilicic mica interlayers were prepared by the reaction of acetyliminopyridine and Fe3+- exchan
- Kondo, Takashi,Yamamoto, Kazuhiro,Sakuragi, Tsutomu,Kurokawa, Hideki,Miura, Hiroshi
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supporting information; experimental part
p. 461 - 463
(2012/06/30)
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