
%0 Journal Article
%A Boto, KG 
%A Thomas, FG 
%T The d.c. and a.c. polarography of some substituted azobenzenes in acetonitrile
%J Australian Journal of Chemistry
%D 1971/05/01
%V 24
%N 5
%P 975-980
%K 
%R https://doi.org/10.1071/CH9710975
%U https://www.publish.csiro.au/paper/CH9710975 
%X The d.c. and a.c. polarographic behaviour of several 4-monosubstituted azobenzenes in acetonitrile is reported. For all oompounds studied, two one-electron reduction steps are observed. The first reduction step is reversible and the second step is meversible, except for 4-nitroazobenzene where both reduction steps are reversible. The half-wave potentials of the reversible steps are directly related to the Hammett substituent constants. Small amounts of water have a marked effect on both the half-wave potentla1 and diffusion current of the second reduction step. 
