
%0 Journal Article
%A Becker, H 
%A Ruge, B 
%A Skelton, BW 
%A White, AH 
%T On the Relationship Between Electronic Absorption and Molecular Geometry: Carbonyl Chromophore n-&#960;. Transition Enhancement and Crystal Structures of Bicyclo[2,2,2]octenones and Bicyclo[2,2,2]octadienones
%J Australian Journal of Chemistry
%D 1979/08/01
%V 32
%N 8
%P 1687-1695
%K 
%R https://doi.org/10.1071/CH9791687
%U https://www.publish.csiro.au/paper/CH9791687 
%X Spectroscopic studies on a series of methoxycarbonyl-substituted &#946;,&#947;-unsaturated bicyclic ketones show a decrease in n-&#960;* transition enhancement in the bicyclo[2,2,2]octadienone derivative relative to that observed in the correspondingly substituted bicyclo [2,2,2] octenone. Crystallographic studies on the related derivatives have been carried out in an attempt to ascertain the influence of ground- state molecular geometry. The results show the detectable difference in geometry to be small and suggest the change in enhancement to be, more likely, a spectral repercussion of homodiene conjugation. 
