
%0 Journal Article
%A Black, PJ 
%A Heffernan, ML 
%T The analysis of the proton magnetic resonance spectra of heteroaromatic systems. V. Diazanaphthalenes
%J Australian Journal of Chemistry
%D 1965/05/01
%V 18
%N 5
%P 707-713
%K 
%R https://doi.org/10.1071/CH9650707
%U https://www.publish.csiro.au/paper/CH9650707 
%X The proton magnetic resonance spectra of the four isomeric diazanaphthalenes, quinoxaline, phthalazine, quinazoline, and cinnoline, all as dilute solutions in carbon tetrachloride and acetone, have been investigated at 100 Mc/s. The chemical shifts and coupling constants have been obtained by direct calculation or, where appropriate, by an iterative procedure. Long-range coupling constants between protons separated by five and six bonds have been observed. 
