Results 21 to 30 of about 1,690 (184)

Synthesis and Electrochromic Properties of Two Random Copolymers Containing Benzotriazole, Benzothiadiazole as Electron Acceptors and Benzodithiophene or Indacenodithiophene as Electron Donors

International Journal of Electrochemical Science, 2019
Two random copolymers, poly (benzotriazole-indacenodithiophene-benzothiadiazole) (PBTIDBD) and poly (benzotriazole-benzodithiophene-benzothiadiazole) (PBTBDBD) were synthesized and characterized by electrochemistry, spectroelectrochemistry ...
Shaowen Pei, Xiuping Ju, Jinsheng Zhao, Hongmei Du, Yan Wang   +4 more
doaj   +1 more source

Directional Second Sphere Effect on CO2 Activation and Reduction by Iron Porphyrin in Aprotic and Protic Media

Angewandte Chemie, EarlyView.
Directional control within the secondary coordination sphere redefines CO2 reduction by iron porphyrins. Simply rearranging identical urea hydrogen‐bond donors modulates reactivity, revealing that optimal catalysis does not only arise from maximal intermediate stabilization, but also from directional, adaptive non‐covalent interactions that balance ...
Ashutosh Vishwakarma, Sami Essid, Sarah Bouery, Régis Guillot, Bernard Boitrel, Philipp Gotico, Marie Sircoglou, Zakaria Halime   +7 more
wiley   +2 more sources

UV/Vis Spectroelectrochemistry as a Tool for Monitoring the Fabrication of Sensors Based on Silver Nanoparticle Modified Electrodes

Sensors, 2013
A new controlled current multipulse methodology has been developed to modify the screen-printed electrode surface with silver nanoparticles (AgNPs). Spectroelectrochemistry has provided not only information about the type of nanoparticles (NPs) deposited
Aránzazu Heras, Álvaro Colina, Cristina Fernández-Blanco   +2 more
doaj   +1 more source

Introducing Diradicaloid Thiele's Hydrocarbon Derivatives as Ligand in Transition Metal Chemistry

Angewandte Chemie, EarlyView.
N‐doped Thiele's hydrocarbon derivative is introduced as a ligand for the synthesis of mono‐ and bimetallic rhodium complexes as well as cyclometalated iridium complexes. These compounds constitute the first metal complexes based on a Thiele's hydrocarbon (or p‐quinodimethane) derivative and, to the best of our knowledge, the first cyclometalated ...
Alok Mahata, Nicolás. I. Neuman, Biprajit Sarkar   +2 more
wiley   +2 more sources

Robust Binding of Disulfide-Substituted Rhenium Bipyridyl Complexes for CO2 Reduction on Gold Electrodes

Frontiers in Chemistry, 2020
Heterogenization of homogenous catalysts on electrode surfaces provides a valuable approach for characterization of catalytic processes in operando conditions using surface selective spectroelectrochemistry methods.
Mauricio Cattaneo, Facheng Guo, H. Ray Kelly, Pablo E. Videla, Laura Kiefer, Sara Gebre, Aimin Ge, Qiliang Liu, Shaoxiong Wu, Tianquan Lian, Víctor S. Batista   +10 more
doaj   +1 more source

CO2‐to‐CO Electrochemical Conversion With an Fe(I) Porphyrin Complex in Water

Angewandte Chemie, EarlyView.
Using in situ UV–vis/IR spectroelectrochemistry, we track CO2 reduction by a water‐soluble iron porphyrin. Rather than the usual [Fe0] intermediate in organic solvents, CO2 binds the electrogenerated [FeI] species and undergoes reductive C─O cleavage to stable [FeII‐CO]. This previously unexplored reaction pathway is facilitated by an aqueous H‐bonding
Andrew Howe, Aude Salamé, Ulysse Garnier, Marc Robert, Elodie Anxolabéhère‐Mallart, Mun Hon Cheah   +5 more
wiley   +2 more sources

Morpholino-Substituted BODIPY Species: Synthesis, Structure and Electrochemical Studies

Crystals, 2020
Functionalization of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) chromophores at the 2,6-positions with iodo substituents and morpholino-substituted α-methyl groups affords molecules with strong absorbance in the visible spectrum. The effect
Hawazen Hassanain, E. Stephen Davies, William Lewis, Deborah L. Kays, Neil R. Champness   +4 more
doaj   +1 more source

Electrochemical and Spectroelectrochemical Study of N-hydroxyphthalimide at Poly(4-vinylpyridine) Coated Electrodes

Electrochemistry
Electrodes coated with poly(4-vinylpyridine) (PVP) shift the oxidation peak potential of N-hydroxyphthalimide (NHPI) in acetonitrile to a less positive direction compared with that at the uncoated electrodes, which promotes proton-coupled electron ...
Shinya KISHIOKA
doaj   +1 more source

Beyond the Phenothiazine Core: Mechanistic Insights into the Three-Electron Oxidation of Chlorpromazine

Molecules
This study investigates the electrochemical oxidation mechanisms of chlorpromazine (CPZ), revealing a novel three-electron oxidation pathway that challenges the traditionally accepted two-electron paradigm, offering new insights into CPZ oxidation ...
Kiara T. Miller, Ashwin K. V. Mruthunjaya, Angel A. J. Torriero   +2 more
doaj   +1 more source

Single-Electron Redox Chemistry on the [Cp*Rh] Platform Enabled by a Nitrated Bipyridyl Ligand

Molecules, 2018
[Cp*Rh] complexes (Cp* = pentamethylcyclopentadienyl) are attracting renewed interest in coordination chemistry and catalysis, but these useful compounds often undergo net two-electron redox cycling that precludes observation of individual one-electron ...
William N. G. Moore, Wade C. Henke, Davide Lionetti, Victor W. Day, James D. Blakemore   +4 more
doaj   +1 more source