Redox active ligand and metal cooperation for C(sp2)–H oxidation: extension of the galactose oxidase mechanism in water-mediated amide formation

2018 ◽  
Vol 47 (43) ◽  
pp. 15293-15297 ◽  
Author(s):  
Zahra Alaji ◽  
Elham Safaei ◽  
Hong Yi ◽  
Hengjiang Cong ◽  
Andrzej Wojtczak ◽  
...  
Keyword(s):  
Driving Force ◽  
Nickel Complexes ◽  
Galactose Oxidase ◽  
Oxidative Transformation ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Amide Formation ◽  
Redox Active

Metal and ligand cooperation provides a driving force for the water-mediated oxidative transformation of imine to amide in copper and nickel complexes versus a zinc analogue.

scholarly journals Magnesium and Nickel Complexes with Bis(p-iminoquinone) Redox-Active Ligand

2021 ◽  
Vol 47 (5) ◽  
pp. 307-318
Author(s):  
I. N. Meshcheryakova ◽  
O. Yu. Trofimova ◽  
N. O. Druzhkov ◽  
K. I. Pashanova ◽  
I. A. Yakushev ◽  
...  
Keyword(s):  
Solid Phase ◽  
Nickel Complexes ◽  
X Ray Diffraction ◽  
X Ray ◽  
Bridging Ligand ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Dimeric Complexes ◽  
Poorly Soluble

Abstract Poorly soluble in the most part of organic solvents dimeric complexes $${\text{M}}{{{\text{g}}}_{{\text{2}}}}{\text{L}}_{2}^{2}$$·4DMF (I) and $${\text{N}}{{{\text{i}}}_{{\text{2}}}}{\text{L}}_{2}^{2}$$·4DMF (II) (L is 4,4'-(1,4-phenylenebis(azanylylidene))bis(3,6-di-tert-butyl-2-hydroxycyclohexa-2,5-dien-1-one dianion)) are synthesized by the reactions of magnesium and nickel acetates with the ditopic redox-active ligand of the hydroxy-para-iminoquinone type in a DMF solution. The molecular and crystal structures of the synthesized compounds are determined by X-ray diffraction analysis (CIF files CCDC nos. 2045665 (I) and 2045666 (II·3DMF)). The thermal stability is studied by thermogravimetry. The redox-active character of the organic bridging ligand in the dimeric complexes $${\text{M}}{{{\text{g}}}_{{\text{2}}}}{\text{L}}_{2}^{2}$$·4DMF and $${\text{N}}{{{\text{i}}}_{{\text{2}}}}{\text{L}}_{2}^{2}$$·4DMF is confirmed by the data of solid-phase electrochemistry.

scholarly journals A versatile route to homo- and hetero-bimetallic 5f–5f and 3d–5f complexes supported by a redox active ligand framework

2017 ◽  
Vol 46 (34) ◽  
pp. 11145-11148 ◽  
Author(s):  
Clément Camp ◽  
Davide Toniolo ◽  
Julie Andrez ◽  
Jacques Pécaut ◽  
Marinella Mazzanti
Keyword(s):  
Nickel Complexes ◽  
Elimination Reaction ◽  
Metal Halides ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active

The salt-elimination reaction of the complex [Na2U(bis-salophen)] with metal halides provides an entry to well-defined homobimetallic uranium–uranium and rare heterobimetallic uranium–cobalt and uranium–nickel complexes supported by a redox-active dinucleating ligand.

Dinuclear Nickel Complexes in Five States of Oxidation Using a Redox-Active Ligand

2014 ◽  
Vol 53 (21) ◽  
pp. 11770-11777 ◽  
Author(s):  
You-Yun Zhou ◽  
Douglas R. Hartline ◽  
Talia J. Steiman ◽  
Phillip E. Fanwick ◽  
Christopher Uyeda
Keyword(s):  
Nickel Complexes ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active

Reactivity of Aluminum Complexes of Redox-Active Ligand toward N-Heterocyclic Carbene and Its Thione

2019 ◽  
Vol 39 (1) ◽  
pp. 66-73 ◽  
Author(s):  
Vladimir G. Sokolov ◽  
Tatyana S. Koptseva ◽  
Roman V. Rumyantcev ◽  
Xiao-Juan Yang ◽  
Yanxia Zhao ◽  
...  
Keyword(s):  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Aluminum Complexes

POSSIBILITY OF MOLECULAR-SWITCH WITH CONTROLLED HYDROGEN BOND: UTILITY OF COMBINATION OF 2,2′-BIIMIDAZOLE AND REDOX-ACTIVE LIGAND

2005 ◽  
Vol 04 (01) ◽  
pp. 333-344 ◽  
Author(s):  
HIROTOSHI MORI ◽  
EISAKU MIYOSHI
Keyword(s):  
Density Functional ◽  
Molecular Level ◽  
Molecular Switch ◽  
Vibration Band ◽  
Functional Theory ◽  
Inorganic Molecule ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Stretching Vibration

A new inorganic molecule [ Co(Hbim) ( C 6 H 4 O 2)( NH 3)2]2 that can be used as a new optically durable molecular switch was theoretically designed in the framework of density functional theory. Three stable minima, belonging to 1 A g , 5 A 1, and 9 A g states, were found in the complex. Theoretically predicted infrared spectra of the complexes showed that a strong peak of NH stretching vibration is observed at 2690, 2120, and 2770 cm -1 in the 1 A g , 5 A 1, and 9 A g states, respectively. The apparent red shift of the NH stretching vibration band in the 5 A 1 state make it possible to distinguish the electronic state from others (1 A g and 9 A g ). This means that the complex can be used as a molecular level switch whose memory can be stably read by IR light without any photoreaction process; namely, without memory degradation.

Isolation of a uranium(iii) benzophenone ketyl radical that displays redox-active ligand behaviour

2014 ◽  
Vol 43 (48) ◽  
pp. 17885-17888 ◽  
Author(s):  
Ellen M. Matson ◽  
John J. Kiernicki ◽  
Nickolas H. Anderson ◽  
Phillip E. Fanwick ◽  
Suzanne C. Bart
Keyword(s):  
Ketyl Radical ◽  
Radical Complex ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Reducing Equivalents

The first uranium(iii) charge separated ketyl radical complex, Tp*2U(OC·Ph2), has been isolated and acts as a potent two-electron reductant with reducing equivalents derived from both uranium and the redox-active benzophenone.

Metal–Organic Frameworks Derived from Calcium and Strontium Complexes of a Redox-Active Ligand

2021 ◽  
Vol 60 (5) ◽  
pp. 3238-3248
Author(s):  
Natalia L. Bazyakina ◽  
Valentin M. Makarov ◽  
Sergey Yu. Ketkov ◽  
Artem S. Bogomyakov ◽  
Roman V. Rumyantcev ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Metal Organic

Catalytic nitrene transfer by a zirconium(iv) redox-active ligand complex

2011 ◽  
Vol 2 (1) ◽  
pp. 166-169 ◽  
Author(s):  
Andy I. Nguyen ◽  
Ryan A. Zarkesh ◽  
David C. Lacy ◽  
Megan K. Thorson ◽  
Alan F. Heyduk
Keyword(s):  
Ligand Complex ◽  
Nitrene Transfer ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active

Synthesis and properties of a redox active ligand with bispicorylamino groups and its dinuclear complex

Polyhedron ◽  
2007 ◽  
Vol 26 (9-11) ◽  
pp. 2174-2178 ◽  
Author(s):  
Masafumi Yano ◽  
Masayuki Fujita ◽  
Masaya Miyake ◽  
Masakazu Tatsumi ◽  
Tatsuo Yajima ◽  
...  
Keyword(s):  
Dinuclear Complex ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active
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