Redox-Active Bridging Ligands Based on Indigo Diimine (“Nindigo”) Derivatives

2011 ◽  
Vol 50 (20) ◽  
pp. 9826-9837 ◽  
Author(s):  
Graeme Nawn ◽  
Kate M. Waldie ◽  
Simon R. Oakley ◽  
Brendan D. Peters ◽  
Derek Mandel ◽  
...  
Keyword(s):  
Bridging Ligands ◽  
Redox Active

scholarly journals Comparative Study of f-Element Electronic Structure across a Series of Multimetallic Actinide and Lanthanoid-Actinide Complexes Possessing Redox-Active Bridging Ligands

2010 ◽  
Vol 49 (4) ◽  
pp. 1995-2007 ◽  
Author(s):  
Eric J. Schelter ◽  
Ruilian Wu ◽  
Jacqueline M. Veauthier ◽  
Eric D. Bauer ◽  
Corwin H. Booth ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Comparative Study ◽  
Bridging Ligands ◽  
Redox Active

Platinum complexes having redox-active PPh2CCFc and/or CCFc as terminal or bridging ligands

2009 ◽  
pp. 3434 ◽  
Author(s):  
Álvaro Díez ◽  
Elena Lalinde ◽  
M. Teresa Moreno ◽  
Sergio Sánchez
Keyword(s):  
Platinum Complexes ◽  
Bridging Ligands ◽  
Redox Active

2D-metal–organic coordination polymers of lanthanides (La(iii), Pr(iii) and Nd(iii)) with redox-active dioxolene bridging ligands

CrystEngComm ◽  
2020 ◽  
Vol 22 (28) ◽  
pp. 4675-4679 ◽  
Author(s):  
Alexandr D. Kharitonov ◽  
Olesya Y. Trofimova ◽  
Irina N. Meshcheryakova ◽  
Georgy K. Fukin ◽  
Mikhail N. Khrizanforov ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Active Networks ◽  
Lanthanide Ions ◽  
Bridging Ligands ◽  
Redox Active ◽  
Metal Organic

2D-coordination redox-active networks bearing t-Bu-substituted anilic bridged ligands and lanthanide ions were synthesized and characterized.

scholarly journals Understanding the charge transport properties of redox active metal–organic conjugated wires

2018 ◽  
Vol 9 (14) ◽  
pp. 3438-3450 ◽  
Author(s):  
Donglei Bu ◽  
Yingqi Xiong ◽  
Ying Ning Tan ◽  
Miao Meng ◽  
Paul J. Low ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Electrical Conductance ◽  
Molecular Wires ◽  
Bridging Ligands ◽  
Redox Active ◽  
Active Metal ◽  
Metal Organic ◽  
Redox Active Metal

For Rh2-organic molecular wires, we found that weaker coupling systems built using longer bridging ligands exhibit better electrical conductance.

Common modifications of selenocysteine in selenoproteins

2019 ◽  
Vol 64 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Elias S.J. Arnér
Keyword(s):  
Amino Acids ◽  
Covalent Binding ◽  
Physicochemical Characteristics ◽  
Redox Active

Abstract Selenocysteine (Sec), the sulfur-to-selenium substituted variant of cysteine (Cys), is the defining entity of selenoproteins. These are naturally expressed in many diverse organisms and constitute a unique class of proteins. As a result of the physicochemical characteristics of selenium when compared with sulfur, Sec is typically more reactive than Cys while participating in similar reactions, and there are also some qualitative differences in the reactivities between the two amino acids. This minireview discusses the types of modifications of Sec in selenoproteins that have thus far been experimentally validated. These modifications include direct covalent binding through the Se atom of Sec to other chalcogen atoms (S, O and Se) as present in redox active molecular motifs, derivatization of Sec via the direct covalent binding to non-chalcogen elements (Ni, Mb, N, Au and C), and the loss of Se from Sec resulting in formation of dehydroalanine. To understand the nature of these Sec modifications is crucial for an understanding of selenoprotein reactivities in biological, physiological and pathophysiological contexts.

On the Crystal Chemistry of Inorganic Nitrides: Crystal-Chemical Parameters and Opportunities in the Exploration of Their Compositional Space

2020 ◽  
Author(s):  
Olivier Charles Gagné
Keyword(s):  
Functional Properties ◽  
A Priori ◽  
Lone Pair ◽  
Length Variation ◽  
Electronic Effects ◽  
Statistical Knowledge ◽  
Redox Active ◽  
Multiply Bonded ◽  
Jahn Teller ◽  
Compositional Space

The scarcity of nitrogen in Earth’s crust, combined with challenging synthesis, have made inorganic nitrides a relatively-unexplored class of compounds compared to their naturally-abundant oxide counterparts. To facilitate exploration of their compositional space via <i>a priori</i> modeling, and to help <i>a posteriori</i> structure verification not limited to inferring the oxidation state of redox-active cations, we derive a suite of bond-valence parameters and Lewis-acid strength values for 76 cations observed bonding to N<sup>3-</sup>, and further outline a baseline statistical knowledge of bond lengths for these compounds. We examine structural and electronic effects responsible for the functional properties and anomalous bonding behavior of inorganic nitrides, and identify promising venues for exploring uncharted compositional spaces beyond the reach of high-throughput computational methods. We find that many mechanisms of bond-length variation ubiquitous to oxide and oxysalt compounds (e.g., lone-pair stereoactivity, the Jahn-Teller and pseudo Jahn-Teller effects) are similarly pervasive in inorganic nitrides, and are occasionally observed to result in greater distortion magnitude than their oxide counterparts. We identify inorganic nitrides with multiply-bonded metal ions as a promising venue in heterogeneous catalysis, e.g. in the development of a post-Haber-Bosch process proceeding at milder reaction conditions, thus representing further opportunity in the thriving exploration of the functional properties of this emerging class of materials.<br>

Energetic Control of Redox-Active Polymers Towards Safe Organic Bioelectronic Materials

2019 ◽  
Author(s):  
Alexander Giovannitti ◽  
Reem B. Rashid ◽  
Quentin Thiburce ◽  
Bryan D. Paulsen ◽  
Camila Cendra ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Organic Semiconductors ◽  
Side Reaction ◽  
Semiconducting Polymers ◽  
Side Reactions ◽  
Redox Active ◽  
Donor Acceptor ◽  
Electrochemical Devices ◽  
Biological Environment ◽  
Device Operation

<p>Avoiding faradaic side reactions during the operation of electrochemical devices is important to enhance the device stability, to achieve low power consumption, and to prevent the formation of reactive side‑products. This is particularly important for bioelectronic devices which are designed to operate in biological systems. While redox‑active materials based on conducting and semiconducting polymers represent an exciting class of materials for bioelectronic devices, they are susceptible to electrochemical side‑reactions with molecular oxygen during device operation. We show that this electrochemical side reaction yields hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), a reactive side‑product, which may be harmful to the local biological environment and may also accelerate device degradation. We report a design strategy for the development of redox-active organic semiconductors based on donor-acceptor copolymers that prevent the formation of H<sub>2</sub>O<sub>2</sub> during device operation. This study elucidates the previously overlooked side-reactions between redox-active conjugated polymers and molecular oxygen in electrochemical devices for bioelectronics, which is critical for the operation of electrolyte‑gated devices in application-relevant environments.</p>

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