Analytical theory is developed for ECE and DISP1 reactions occurring a
t channel electrodes. Simple expressions are presented which allow the
ready mechanistic interpretation of experimental data and the deducti
on of corresponding rate constants. These are shown to be in excellent
agreement with numerical simulations and with experiments conducted o
n the reductions of o-bromonitrobenzene in dimethylformamide solution
and of p-bromonitrobenzene in acetonitrile in the presence of light of
wavelength 325 nm.