Journal of the Chemical Society - Faraday Transactions p. 335 - 339 (1990)
Update date:2022-08-30
Topics:
Waller, Andrew M.
Northing, Richard J.
Compton, Richard G.
The oxidation of the acetate anion mediated by tris(4-bromophenyl)ammoniumyl, electrogenerated from the parent amine, has been investigated using ESR with an in situ channel electrode flow cell.In the absence of acetate, the oxidation of tris(4-bromophenyl)amine (TBA) is a reversible one-electron process which forms the corresponding radical cation, tris(4-bromophenyl)ammoniumyl (TBA.+).In the presence of acetate the process takes on the characteristics of the catalytic (EC') mechanism.Analysis of the diffusion-limited current/electrolyte flow rate and ESR signal/current/electrolyte flow rate behaviour allows the precise mechanism to be deduced.This is shown to be an EC'-pre-equilibrium mechanism:
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