
%0 Journal Article
%A Nott, PR 
%A Selinger, BK 
%T Fluorescence decay of aromatic vapours. III. Single vibronic lifetimes and collision cross-sections for pyrimidine
%J Australian Journal of Chemistry
%D 1978/09/01
%V 31
%N 9
%P 1875-1887
%K 
%R https://doi.org/10.1071/CH9781875
%U https://www.publish.csiro.au/paper/CH9781875 
%X In this paper the results of a lifetime study of the 1B1 state of pyrimidine vapour in the pressure range 1.2-60 Pa are presented. These lifetimes show an extraordinary pressure dependence, with collision cross-sections of 30-40 times hard sphere. It is shown that pyrimidine behaves as a small molecule. The collision-induced decay process is intersystem crossing and it is the most effective collision-induced process yet reported for the small-molecule limit. 
