Electrochemical and spectroscopic characterization of oxidized intermediate forms of vitamin E

RD Webster - Molecules, 2022 - mdpi.com
Vitamin E, a collection of lipophilic phenolic compounds based on chroman-6-ol, has a rich
and fascinating oxidative chemistry involving a range of intermediate forms, some of which …

Tuning the reduction potential of quinones by controlling the effects of hydrogen bonding, protonation and proton-coupled electron transfer reactions

RRS Shi, ME Tessensohn, SJL Lauw… - Chemical …, 2019 - pubs.rsc.org
An all-organic cell comprising 2, 3-dimethyl-1, 4-napthoquinone and pyrano [3, 2-f]
chromene as electroactive elements exhibited a good combination of large cell voltage and …

Electrochemical/chemical oxidation of bisphenol A in a four-electron/two-proton process in aprotic organic solvents

YY Chan, Y Yue, Y Li, RD Webster - Electrochimica Acta, 2013 - Elsevier
The electrochemical behavior of bisphenol A (BPA) was examined using cyclic voltammetry,
bulk electrolysis and chemical oxidation in aprotic organic solvents. It was found that BPA …

Electrochemistry of α-tocopherol (Vitamin E) and α-tocopherol quinone films deposited on electrode surfaces in the presence and absence of lipid multilayers

W Wei Yao, H Mei Peng… - The Journal of Physical …, 2009 - ACS Publications
Water insoluble α-tocopherol films were deposited on the surface of gold, glassy carbon and
platinum electrodes and their voltammetric behavior examined in aqueous solutions …

How phenol and α-tocopherol react with ambient ozone at gas/liquid interfaces

S Enami, MR Hoffmann, AJ Colussi - The Journal of Physical …, 2009 - ACS Publications
The exceptional ability of α-tocopherol (α-TOH) for scavenging free radicals is believed to
also underlie its protective functions in respiratory epithelia. Phenols, however, can …

Reductive and oxidative electrochemical study and spectroscopic properties of nickel (II) complexes with N2O2 Schiff bases derived from (±)-trans-N, N′-bis …

D Tomczyk, L Nowak, W Bukowski, K Bester… - Electrochimica …, 2014 - Elsevier
Cyclic voltammetry, chronopotentiometry, chronocoulometry, controlled potential electrolysis
and UV VIS were used in investigation of ligands and Ni (II) complexes with (±)-trans-N, N …

Voltammetric studies on vitamins D2 and D3 in organic solvents

YY Chan, Y Yue, RD Webster - Electrochimica Acta, 2014 - Elsevier
The electrochemical behavior of vitamins D 2 and D 3 were examined by performing cyclic
voltammetry (CV), rotating disk electrode voltammetry, controlled potential electrolysis and …

Redox processes in the solution of Ni (II) complex with salen type ligand and in the polymer films

D Tomczyk, W Bukowski, K Bester - Electrochimica Acta, 2018 - Elsevier
The investigations of oxidation processes of (±)-trans-N, N′-bis (3, 5-di-methylsalicylidene)-
1, 2-cyclohexanediaminenickel (II))[Ni (salcn (2Me))] and ligands with Me substituents …

Electrode-supported biomembrane for examining electron-transfer and ion-transfer reactions of encapsulated low molecular weight biological molecules

WW Yao, C Lau, Y Hui, HL Poh… - The Journal of Physical …, 2011 - ACS Publications
A robust model membrane environment has been developed to enable voltammetry
experiments to be performed on low molecular weight biological molecules completely …

Infrared and UV–vis spectra of phenoxonium cations produced during the oxidation of phenols with structures similar to vitamin E

S Chen, HM Peng, RD Webster - Electrochimica acta, 2010 - Elsevier
Several phenols with structures similar to vitamin E were oxidised and the intermediate
species produced were characterised by in situ infrared and UV–vis spectroscopies. The …