Synthesis and characterization of Ni(II) complexes bearing of 2‐(1 H –benzimidazol‐2‐yl)‐phenol derivatives as highly active catalysts for ethylene oligomerization

2017 ◽  
Vol 32 (2) ◽  
Author(s):  
Marzieh Haghverdi ◽  
Azadeh Tadjarodi ◽  
Naeimeh Bahri‐Laleh ◽  
Mehdi Nekoomanesh‐Haghighi
Keyword(s):  
Ethylene Oligomerization ◽  
Synthesis And Characterization ◽  
Phenol Derivatives ◽  
Highly Active

Synthesis and characterization of γ-Fe2O3@SiO2–(CH2)3–PDTC–Pd magnetic nanoparticles: a new and highly active catalyst for the Heck/Sonogashira coupling reactions

2019 ◽  
Vol 43 (23) ◽  
pp. 8930-8938 ◽  
Author(s):  
Zahra Tashrifi ◽  
Saeed Bahadorikhalili ◽  
Hossein Lijan ◽  
Samira Ansari ◽  
Haleh Hamedifar ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Active Catalyst ◽  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Sonogashira Coupling ◽  
Highly Active ◽  
Novel Catalyst

A novel catalyst is synthesized based on the immobilization of palladium on γ-Fe2O3@SiO2–(CH2)3–PDTC nanoparticles and is used as a highly active catalyst for the Heck/Sonogashira coupling reactions.

scholarly journals H/D Exchange Under Mild Conditions in Arenes and Unactivated Alkanes with C6D6 and D2O Using Rigid, Electron-rich Iridium PCP Pincer Complexes

2020 ◽  
Author(s):  
Joel D. Smith ◽  
George Durrant ◽  
Daniel Ess ◽  
Warren Piers
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Room Temperature ◽  
Pincer Complexes ◽  
Synthesis And Characterization ◽  
Hydrogen Isotope Exchange ◽  
Mild Conditions ◽  
Highly Active ◽  
Pcp Pincer

<div>The synthesis and characterization of an iridium polyhydride complex (Ir-H4)</div><div>supported by an electron-rich PCP framework is described. This complex readily loses molecular</div><div>hydrogen allowing for rapid room temperature hydrogen isotope exchange (HIE) at the hydridic</div><div>positions and the α-C-H site of the ligand with deuterated solvents such as benzene-d6, toluene-d8</div><div>and THF-d8. The removal of 1-2 equivalents of molecular H2 forms unsaturated iridium carbene</div><div>trihydride (Ir-H3) or monohydride (Ir-H) compounds that are able to create further unsaturation</div><div>by reversibly transferring a hydride to the ligand carbene carbon. These species are highly active</div><div>hydrogen isotope exchange (HIE) catalysts using C6D6 or D2O as deuterium sources for the</div><div>deuteration of a variety of substrates. By modifying conditions to influence the Ir-Hn speciation,</div><div>deuteration levels can range from near exhaustive to selective only for sterically accessible sites.</div><div>Preparative level deuterations of select substrates were performed allowing for procurement of</div><div>>95% deuterated compounds in excellent isolated yields; the catalyst can be regenerated by</div><div>treatment of residues with H2 and is still active for further reactions.</div>

Synthesis and characterization of highly-active nickel and lanthanum co-doped SrTiO3

2010 ◽  
Vol 12 (7) ◽  
pp. 1140-1145 ◽  
Author(s):  
Aizhong Jia ◽  
Zhiqian Su ◽  
Lan-Lan Lou ◽  
Shuangxi Liu
Keyword(s):  
Synthesis And Characterization ◽  
Highly Active ◽  
Co Doped

Activated carbon fibers as a support for nickel diimine complexes and their application in ethylene oligomerization

2020 ◽  
Vol 44 (35) ◽  
pp. 15100-15108
Author(s):  
Yuri M. Variani ◽  
Christian W. Lopes ◽  
Bruna P. Nicola ◽  
Debora M. Meira ◽  
Sibele B. C. Pergher ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Carbon Fibers ◽  
Ethylene Oligomerization ◽  
Synthesis And Characterization ◽  
Activated Carbon Fibers ◽  
New Class ◽  
Diimine Ligand ◽  
Diimine Complexes

In this work, we demonstrate the synthesis and characterization of a new class of β-diimine ligand combined with the alkoxysilane group CPTMS ((3-chloropropyl)trimethoxysilane), covalently anchored to the surface of activated carbon fibers (ACF).

Toward Highly Active Two-Photon Absorbing Liquids. Synthesis and Characterization of 1,3,5-Triazine-Based Octupolar Molecules

2004 ◽  
Vol 16 (1) ◽  
pp. 185-194 ◽  
Author(s):  
Ramamurthi Kannan ◽  
Guang S. He ◽  
Tzu-Chau Lin ◽  
Paras N. Prasad ◽  
Richard A. Vaia ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Two Photon ◽  
Highly Active
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