
%0 Journal Article
%A Le Fevre, RJW 
%A Werner, RL 
%T The stretching frequency of the AZO-group
%J Australian Journal of Chemistry
%D 1957/03/01
%V 10
%N 1
%P 26-33
%K 
%R https://doi.org/10.1071/CH9570026
%U https://www.publish.csiro.au/paper/CH9570026 
%X Infra-red absorptions now reported for 25 azoaryl derivatives bring the number of N=N- containing structures examined so far up to 83. Indications previously recognized, that the azo-stretching frequencies in azobenzenes lie between 1400 and 1450 cm-1, are confirmed by the present measurements. 
