
%0 Journal Article
%A Beecham, AF 
%A Hurley, AC 
%T Hydrogen Bonding and the n &#8594; &#960; Blue Shift in &#945;,&#946;-Unsaturated Ketones
%J Australian Journal of Chemistry
%D 1979/08/01
%V 32
%N 8
%P 1643-1648
%K 
%R https://doi.org/10.1071/CH9791643
%U https://www.publish.csiro.au/paper/CH9791643 
%X The c.d. spectra of &#945;,&#946;-unsaturated ketones through the n &#8594; &#960;* absorption region are, in general, better resolved than the corresponding ultraviolet spectra and are free of overlap from neighbouring transitions. In consequence, the nature of the solvent-induced blue shift is more clearly discernible in circular dichroism. That part of the blue shift which is ascribable to hydrogen bonding is shown to result from a redistribution of intensity between vibrational sub-bands rather than a change in energy of the n &#8594; &#960;* band as a whole. 
