Electron transfer and homogeneous redox catalysis on glassy carbon electrode—I. Linear sweep and cyclic voltammetric studies on Ti(IV) oxalate-NH2 OH system in oxalic acid media

1983 ◽  
Vol 28 (4) ◽  
pp. 477-482 ◽  
Author(s):  
M. Noel ◽  
P.N. Anantharaman
Keyword(s):  
Electron Transfer ◽  
Oxalic Acid ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Redox Catalysis ◽  
Linear Sweep ◽  
Cyclic Voltammetric ◽  
Acid Media ◽  
Voltammetric Studies ◽  
Cyclic Voltammetric Studies

Electron transfer reactions. Reaction of nitrones with potassium

1987 ◽  
Vol 65 (9) ◽  
pp. 2039-2049 ◽  
Author(s):  
Konda Ashok ◽  
Pallikkaparambil M. Scaria ◽  
Prashant V. Kamat ◽  
Manapurathu V. George
Keyword(s):  
Electron Transfer ◽  
Transfer Reactions ◽  
Radical Anions ◽  
Cyclic Voltammetric ◽  
Electron Transfer Reactions ◽  
Reduction Potentials ◽  
Dimeric Product ◽  
Voltammetric Studies ◽  
Electron Transfer Processes ◽  
Cyclic Voltammetric Studies

Treatment of nitrones (1a–d, 26a,b, 34, 49) with potassium in tetrahydrofuran (THF) gives rise to radical anion (2a–d, 27a,b, 35, 50) and dianion intermediates (3a–d, 28a,b, 36) through electron transfer reactions. These intermediates undergo further transformations to give a variety of products. Thus, the aldehydonitrones (1a–d) give the corresponding aldehydes (10a–c), carboxylic acids (25a–c), and azobenzenes (19a,d), whereas the ketonitrones (26a,b) give deoxygenation products (31a,b). The nitrone 34 gave a mixture of products consisting of benzoic acid (25a), dibenzyl (48), the dimeric product 38, and tetraphenylpyrazine (46), whereas 49 did not give any isolable product. Cyclic voltammetric studies have been employed to measure the reduction potentials for both one-electron and two-electron transfer processes, leading to the radical anions and dianions respectively. These intermediates have been characterized through their electronic spectra and they were quenched by oxygen. Pulse radiolysis of the nitrones 1a–d, 26a,b, 34, and 49 also gave the corresponding radical anions 2a–d, 27a,b, 35, and 50, characterized by their spectra.

496—Cyclic voltammetric studies on the application of carbon elctrodes in the determination of oxalic acid

1982 ◽  
Vol 141 (3) ◽  
pp. 357-364
Author(s):  
K.V. Thrivikraman ◽  
R.W. Keller ◽  
S.K. Wolfson ◽  
S.J. Yao ◽  
J.C. Morgen-Lander
Keyword(s):  
Oxalic Acid ◽  
Cyclic Voltammetric ◽  
Voltammetric Studies ◽  
Cyclic Voltammetric Studies

Cyclic voltammetric studies on the application of carbon electrodes in the determination of oxalic acid

1982 ◽  
Vol 9 (3) ◽  
pp. 357-364 ◽  
Author(s):  
K.V. Thrivikraman ◽  
R.W. Keller ◽  
S.K. Wolfson ◽  
S.J. Yao ◽  
J.C. Morgen-Lander
Keyword(s):  
Oxalic Acid ◽  
Carbon Electrodes ◽  
Cyclic Voltammetric ◽  
Voltammetric Studies ◽  
Cyclic Voltammetric Studies

scholarly journals Electrochemical Studies of Betti Base and Its Copper(II) Complex by Cyclic and Elimination Voltammetry

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Shardul Bhatt ◽  
Bhavna Trivedi
Keyword(s):  
Electron Transfer ◽  
Surface Reaction ◽  
Reference Electrode ◽  
Chemical Oxidation ◽  
Electrochemical Studies ◽  
Cyclic Voltammetric ◽  
Betti Base ◽  
Iminium Ion ◽  
Voltammetric Studies ◽  
Cyclic Voltammetric Studies

The electrochemical behavior of Betti base 1-(α-amino benzyl)-2-naphthol (BB) and its copper(II) complex by cyclic and elimination voltammetry (EVLS) is reported in the present study. The cyclic voltammetric studies carried out at a glassy carbon working electrode, Ag/Ag+reference electrode (0.01 M AgNO3in acetonitrile) in DCM at 100 mV/sec, 200 mV/sec, and 400 mV/sec scan rates indicated a preceding chemical oxidation of the adsorbed BB species to form an iminium ion followed by formation of a carbanion via two-step quasireversible reduction. The suggested reaction mechanism has been supported by the elimination voltammetry. The CV and EVLS studies revealed Cu(II)BB complex to undergo a chemical or a surface reaction before electron transfer from the electrode at −0.49 V to form Cu(I)BB species. The oxidation of Cu(I)BB species has been observed to be CV silent.

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