
%0 Journal Article
%A Melhuish, WH 
%A Miller, IJ 
%T The anomalous phosphorescence excitation spectra of model lignin compounds
%J Australian Journal of Chemistry
%D 1978/04/01
%V 31
%N 4
%P 795-801
%K 
%R https://doi.org/10.1071/CH9780795
%U https://www.publish.csiro.au/paper/CH9780795 
%X The anomalous phosphorescence spectra of lignin model compounds at 77 K are explained in terms of the formation of molecular aggregates (K &#8776; 50 mol-1 1.). Aggregation best explains the phosphorescence excitation spectra and the increase in phosphorescence yield (Yp) with increasing concentration; for example, for isosafrole in ethanol at 77 K, Yp is less than 0.005 at 10-5 M and c.0.1 at 3 &#215; 10-2 M. 
