Determination of rate constants for electron transfer from radical anions of aromatic compounds to diaryl disulfides

1981 ◽  
Vol 103 (18) ◽  
pp. 5484-5489 ◽  
Author(s):  
Hideyuki Tagaya ◽  
Tamotsu Aruga ◽  
Osamu Ito ◽  
Minoru Matsuda
Keyword(s):  
Electron Transfer ◽  
Rate Constants ◽  
Aromatic Compounds ◽  
Radical Anions

Free-radical reductions of arenediazonium ions in aqueous solution. V. Pulse-radiolytic determination of rate constants for some para-substitutedbenzenediazonium ions

1981 ◽  
Vol 34 (7) ◽  
pp. 1433 ◽  
Author(s):  
JE Packer ◽  
J Monig ◽  
BC Dobson
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Rate Constants ◽  
Substituent Effect ◽  
Reduction Potential ◽  
Radical Anions ◽  
Semiquinone Radical ◽  
Substituent Group

Some rate constants for the reduction of para-substituted benzenediazonium ions by the radicals eaq-, ·CH2OH, (CH3)2·COH and some semiquinone radical anions have been measured. The substituent group has no effect on the rates with eaq-, but as the reduction potential of the reducing radical becomes more positive, the substituent effect increases, electron-withdrawing groups enhancing the rates. No free halide is formed on reduction of p-BrC6H4N2+ or p-IC6H4N2+ by eaq- or ·CH2OH.

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