scholarly journals The semiquinone radical anion of 1,10-phenanthroline-5,6-dione: synthesis and rare earth coordination chemistry

2018 ◽  
Vol 54 (80) ◽  
pp. 11284-11287 ◽  
Author(s):  
James R. Hickson ◽  
Samuel J. Horsewill ◽  
Jake McGuire ◽  
Claire Wilson ◽  
Stephen Sproules ◽  
...  
Keyword(s):  
Rare Earth ◽  
Coordination Chemistry ◽  
Radical Anion ◽  
Semiquinone Radical ◽  
Metal Compounds ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Rare Earth Coordination ◽  
Semiquinone Radical Anion

The redox-active ligand as a route to heterobimetallic rare earth-transition metal compounds containing a semiquinone radical anion.

Synthesis and characterization of 2,7-bis(2-pyridyl)-1,8-diazaanthraquinone — A redox-active ligand designed for the construction of supramolecular grids

2006 ◽  
Vol 84 (10) ◽  
pp. 1263-1267 ◽  
Author(s):  
Rajsapan Jain ◽  
Sharon L Caldwell ◽  
Anika S Louie ◽  
Robin G Hicks
Keyword(s):  
Radical Anion ◽  
Synthesis And Characterization ◽  
Electrochemical Studies ◽  
Reduction Processes ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Metallosupramolecular Chemistry ◽  
Reversible Reduction

Double condensation of 2-acetylpyridine with 1,3-diaminobenzene-4,6-dicarboxaldehyde affords 2,7-bis(2-pyridyl)-1,8-diazaanthracene, which was subsequently oxidized to the corresponding quinone. Electrochemical studies indicate two reversible reduction processes corresponding to semiquinone and hydroquinonate formation. Electron-withdrawing pyridine groups and the nitrogen atoms make this somewhat more easily reduced than anthraquinone. This compound is redox-active and can be reduced to its radical anion, a potential spin-bearing ligand for the construction of [2 × 2] metallo-grid structures.Key words: quinone, grid, supramolecular, bistridentate, electrochemistry, metallosupramolecular chemistry.

scholarly journals Electro-kinetic Separation of Rare Earth Elements Using a Redox-Active Ligand

2017 ◽  
Vol 129 (43) ◽  
pp. 13635-13639 ◽  
Author(s):  
Huayi Fang ◽  
Bren E. Cole ◽  
Yusen Qiao ◽  
Justin A. Bogart ◽  
Thibault Cheisson ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Kinetic Separation

scholarly journals The modular synthesis of rare earth-transition metal heterobimetallic complexes utilizing a redox-active ligand

2018 ◽  
Vol 47 (31) ◽  
pp. 10692-10701 ◽  
Author(s):  
James R. Hickson ◽  
Samuel J. Horsewill ◽  
Christopher Bamforth ◽  
Jake McGuire ◽  
Claire Wilson ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Synthetic Route ◽  
Modular Synthesis ◽  
Bridging Ligand ◽  
Heterobimetallic Complexes ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active

The redox-active bridging ligand 1,10-phenathroline-5,6-dione, acts as the template for this modular synthetic route to f–d heterobimetallic complexes.

scholarly journals Electro-kinetic Separation of Rare Earth Elements Using a Redox-Active Ligand

2017 ◽  
Vol 56 (43) ◽  
pp. 13450-13454 ◽  
Author(s):  
Huayi Fang ◽  
Bren E. Cole ◽  
Yusen Qiao ◽  
Justin A. Bogart ◽  
Thibault Cheisson ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Kinetic Separation

Group IV Coordination Chemistry of a Tetradentate Redox-Active Ligand in Two Oxidation States

2009 ◽  
Vol 2009 (6) ◽  
pp. 735-743 ◽  
Author(s):  
Karen J. Blackmore ◽  
Neetu Lal ◽  
Joseph W. Ziller ◽  
Alan F. Heyduk
Keyword(s):  
Coordination Chemistry ◽  
Group Iv ◽  
Oxidation States ◽  
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
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