Isolation of Soluble99Tc as a Compact Solid Using a Recyclable, Redox-Active, Metal-Complex Extractant

1996 ◽  
Vol 30 (10) ◽  
pp. 3124-3127 ◽  
Author(s):  
Jennifer F. Clark ◽  
Dustin L. Clark ◽  
Glenn D. Whitener ◽  
Norman C. Schroeder ◽  
Steven H. Strauss
Keyword(s):  
Metal Complex ◽  
Redox Active ◽  
Active Metal ◽  
Redox Active Metal

Enhancement of electrocatalytic abilities for reducing carbon dioxide: functionalization with a redox-active ligand-coordinated metal complex

2018 ◽  
Vol 47 (33) ◽  
pp. 11313-11316 ◽  
Author(s):  
Habib Md. Ahsan ◽  
Brian K. Breedlove ◽  
Santivongskul Piangrawee ◽  
Mohammad Rasel Mian ◽  
Ahmed Fetoh ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Metal Complex ◽  
Turnover Frequency ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Active Metal ◽  
Redox Active Metal

Attaching a redox-active metal complex to a CO2 reduction electrocatalyst improves the overpotential and turnover frequency towards the reduction of CO2 to CO.

Bottom-up fabrication of redox-active metal complex oligomer wires on an H-terminated Si(111) surface

2011 ◽  
Vol 47 (30) ◽  
pp. 8644 ◽  
Author(s):  
Hiroaki Maeda ◽  
Ryota Sakamoto ◽  
Yoshihiko Nishimori ◽  
Junya Sendo ◽  
Fumiyuki Toshimitsu ◽  
...  
Keyword(s):  
Metal Complex ◽  
Bottom Up ◽  
Redox Active ◽  
Active Metal ◽  
Redox Active Metal

The emerging molecular structure of the nitrogen cycle: an introduction to the proceedings of the 10th annual N-cycle meeting

2005 ◽  
Vol 33 (1) ◽  
pp. 113-118 ◽  
Author(s):  
C.S. Butler ◽  
D.J. Richardson
Keyword(s):  
Structural Biology ◽  
Nitrogen Cycle ◽  
Reaction Mechanisms ◽  
Spectroscopic Analysis ◽  
Three Dimensional ◽  
Chemical Transformations ◽  
Redox Active ◽  
Active Metal ◽  
Insight Into ◽  
Redox Active Metal

Over the last 10 years, during the lifetime of the nitrogen cycle meetings, structural biology, coupled with spectroscopy, has had a major impact of our understanding enzymology of the nitrogen cycle. The three-dimensional structures for many of the key enzymes have now been resolved and have provided a wealth of information regarding the architecture of redox active metal sites, as well as revealing novel structural folds. Coupled with structure-based spectroscopic analysis, this has led to new insight into the reaction mechanisms of the diverse chemical transformations that together cycle nitrogen in the biosphere. An overview of the some of the key developments in field over the last decade is presented.

scholarly journals Confining the spin between two metal atoms within the carbon cage: redox-active metal–metal bonds in dimetallofullerenes and their stable cation radicals

Nanoscale ◽  
2017 ◽  
Vol 9 (23) ◽  
pp. 7977-7990 ◽  
Author(s):  
Nataliya A. Samoylova ◽  
Stanislav M. Avdoshenko ◽  
Denis S. Krylov ◽  
Hannah R. Thompson ◽  
Amelia C. Kirkhorn ◽  
...  
Keyword(s):  
Carbon Cage ◽  
Cation Radicals ◽  
Metal Atoms ◽  
Redox Active ◽  
Active Metal ◽  
Metal Metal ◽  
Metal Metal Bonds ◽  
Metal Bonds ◽  
Redox Active Metal

Dioxygen-derived radicals in biological systems

1985 ◽  
Vol 311 (1152) ◽  
pp. 605-615 ◽  
Keyword(s):  
Respiratory Burst ◽  
Electrochemical Method ◽  
Culture Medium ◽  
Biological Systems ◽  
Cellular Systems ◽  
Superoxide Ion ◽  
Radical Species ◽  
Redox Active ◽  
Active Metal ◽  
Redox Active Metal

Three instances of the involvement of dioxygen-derived radicals in biological systems are considered. The first concerns the formation of radicals in the haemolytic reactions induced by treatment of erythrocytes by phenylhydrazine, as an example of the so-called ‘oxidant drugs’. The evidence for the formation of phenyl radicals is considered and their origin in the oxidation of phenylhydrazine by a ferryl derivative of haemoglobin postulated. The relevance to the formation of phenylated iron and porphyrin species is described. It is suspected that many instances of oxidative damage to cellular systems result from the coincidence of unsequestered redox-active metal ions (particularly those of iron and copper), reductants, and dioxygen. As an example, the damage to hepatocytes, grown in a culture medium containing cysteine, is described. The formation of radical species derived from dioxygen during the respiratory burst associated with phagocytosis is discussed. A new electrochemical method of detecting the superoxide ion produced during the respiratory burst is described. Particular emphasis is placed on the relation between the production of radical species such as the hydroxyl radical and the superoxide ion, and the extent of phagocytosis.

scholarly journals Negative cooperativity upon hydrogen bond-stabilized O2 adsorption in a redox-active metal–organic framework

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Julia Oktawiec ◽  
Henry Z. H. Jiang ◽  
Jenny G. Vitillo ◽  
Douglas A. Reed ◽  
Lucy E. Darago ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Metal Organic Framework ◽  
Negative Cooperativity ◽  
O2 Adsorption ◽  
Redox Active ◽  
Active Metal ◽  
Metal Organic ◽  
Redox Active Metal ◽  
Organic Framework

Synthesis, characterization and biochemical studies of redox active metal complexes with flavone derivative

2020 ◽  
Author(s):  
Jyothi R R Krishna ◽  
J. Michael Ahitha Jose ◽  
E.H. Edinsha Gladis ◽  
K. Nagashri ◽  
J. Joseph
Keyword(s):  
Metal Complexes ◽  
Redox Active ◽  
Active Metal ◽  
Biochemical Studies ◽  
Flavone Derivative ◽  
Redox Active Metal

All-PEGylated redox-active metal-free organic molecules in non-aqueous redox flow battery

2020 ◽  
Vol 8 (31) ◽  
pp. 15715-15724 ◽  
Author(s):  
Jingchao Chai ◽  
Amir Lashgari ◽  
Xiao Wang ◽  
Caroline K. Williams ◽  
Jianbing “Jimmy” Jiang
Keyword(s):  
Organic Molecules ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Active Materials ◽  
Metal Free ◽  
Redox Active ◽  
Active Metal ◽  
Molecular Sizes ◽  
The Stability ◽  
Redox Active Metal

A non-aqueous redox flow battery based on all-PEGylated, metal-free compounds is presented. The PEGylation enhances the stability of the redox-active materials, alleviating crossover by increasing the anolyte and catholyte species’ molecular sizes.

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