scholarly journals In situ reversible redox switching of first hyperpolarizability of bimetallic ruthenium complexes

2019 ◽  
Vol 21 (21) ◽  
pp. 11079-11086 ◽  
Author(s):  
C. Karthika ◽  
S. R. Sarath Kumar ◽  
L. Kathuria ◽  
P. K. Das ◽  
A. G. Samuelson
Keyword(s):  
Ruthenium Complexes ◽  
First Hyperpolarizability ◽  
Bimetallic Complex ◽  
Reversible Redox ◽  
Redox Switching

Reversible redox switching of first hyperpolarizability of Monometallic and bimetallic complex.

scholarly journals A Novel Cobalt Metallopolymer with Redox-Matched Conjugated Organic Backbone via Electropolymerization of a Readily Available N4 Cobalt Complex

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1667
Author(s):  
Mikhail Karushev
Keyword(s):  
Redox Reactions ◽  
Repeat Unit ◽  
Cobalt Complex ◽  
Radical Cations ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Practical Applications ◽  
Sensing Applications ◽  
Novel Approach ◽  
Redox Switching

Fast and reversible cobalt-centered redox reactions in metallopolymers are the key to using these materials in energy storage, electrocatalytic, and sensing applications. Metal-centered electrochemical activity can be enhanced via redox matching of the conjugated organic backbone and cobalt centers. In this study, we present a novel approach to redox matching via modification of the cobalt coordination site: a conductive electrochemically active polymer was electro-synthesized from [Co(Amben)] complex (Amben = N,N′-bis(o-aminobenzylidene)ethylenediamine) for the first time. The poly-[Co(Amben)] films were investigated by cyclic voltammetry, electrochemical quartz crystal microbalance (EQCM), in situ UV‑vis-NIR spectroelectrochemistry, and in situ conductance measurements between −0.9 and 1.3 V vs. Ag/Ag+. The polymer displayed multistep redox processes involving reversible transfer of the total of 1.25 electrons per repeat unit. The findings indicate consecutive formation of three redox states during reversible electrochemical oxidation of the polymer film, which were identified as benzidine radical cations, Co(III) ions, and benzidine di-cations. The Co(II)/Co(III) redox switching is retained in the thick polymer films because it occurs at potentials of high polymer conductivity due to the optimum redox matching of the Co(II)/Co(III) redox pair with the organic conjugated backbone. It makes poly-[Co(Amben)] suitable for various practical applications based on cobalt-mediated redox reactions.

In-situ monitoring reversible redox reaction and circulating detection of nitrite via an ultrasensitive magnetic Au@Ag SERS substrate

2018 ◽  
Vol 256 ◽  
pp. 107-116 ◽  
Author(s):  
Ping Chen ◽  
Aiwu Zhao ◽  
Jin Wang ◽  
Qinye He ◽  
Henghui Sun ◽  
...  
Keyword(s):  
Redox Reaction ◽  
In Situ Monitoring ◽  
Sers Substrate ◽  
Reversible Redox

scholarly journals In situ spectroelectrochemical and theoretical study on the oxidation of a 4H-imidazole-ruthenium dye adsorbed on nanocrystalline TiO2 thin film electrodes

2015 ◽  
Vol 17 (44) ◽  
pp. 29637-29646 ◽  
Author(s):  
Ying Zhang ◽  
Stephan Kupfer ◽  
Linda Zedler ◽  
Julian Schindler ◽  
Thomas Bocklitz ◽  
...  
Keyword(s):  
Thin Film ◽  
Charge Transfer ◽  
Tio2 Thin Film ◽  
Theoretical Study ◽  
Ruthenium Complexes ◽  
Wavelength Dependence ◽  
Nanocrystalline Tio2 ◽  
Thin Film Electrodes ◽  
Ruthenium Dye

A pronounced wavelength dependence of charge transfer character is observed, indicating that these 4H-imidazole-ruthenium complexes are potential multi-photoelectron donors.

ChemInform Abstract: Hydroacetoxylation of Olefins with Acetic Acid Generated in situ from Vinyl Acetate in the Presence of Ruthenium Complexes.

ChemInform ◽  
2011 ◽  
Vol 42 (30) ◽  
pp. no-no
Author(s):  
R. I. Khusnutdinov ◽  
N. A. Shchadneva ◽  
L. F. Khisamova ◽  
U. M. Dzhemilev
Keyword(s):  
Acetic Acid ◽  
Vinyl Acetate ◽  
Ruthenium Complexes

Regioselective Allylic Alkylation and Etherification Catalyzed by in situ Generated N-Heterocyclic Carbene Ruthenium Complexes.

ChemInform ◽  
2006 ◽  
Vol 37 (17) ◽  
Author(s):  
Nevin Guerbuez ◽  
Ismail Oezdemir ◽  
Bekir Cetinkaya ◽  
Jean-Luc Renaud ◽  
Bernard Demerseman ◽  
...  
Keyword(s):  
Ruthenium Complexes ◽  
Allylic Alkylation

Reversible redox switching in polypyrrole and poly-SNS films

1997 ◽  
Vol 84 (1-3) ◽  
pp. 183-184 ◽  
Author(s):  
T.F. Otero ◽  
S. Villanueva ◽  
M. Bengoechea ◽  
E. Brillas ◽  
J. Carrasco
Keyword(s):  
Reversible Redox ◽  
Redox Switching
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