
%0 Journal Article
%A Gore, PH 
%A John, IG 
%A Pierens, RK 
%A Ritchie, GLD 
%T Dipole moments, Kerr constants and solution-state conformations of di(pyridin-4-yl), di(pyridin-3-yl) and di(pyridin-2-yl) ketone
%J Australian Journal of Chemistry
%D 1980/12/01
%V 33
%N 12
%P 2597-2604
%K 
%R https://doi.org/10.1071/CH9802597
%U https://www.publish.csiro.au/paper/CH9802597 
%X Experimental dipole moments and molar Kerr constants are reported and analysed for di(pyridin-4-yl), di(pyridin-3-yl) and di(pyridin-2-yl) ketone as solutes in carbon tetrachloride or cyclohexane at 298 K. The preferred conformation of di(pyridin-4-yl) ketone is found to be very similar to those previously deduced for benzophenone and several 4,4'- disubstituted benzophenones. For di(pyridin-3-yl) and di(pyridin-2-yl) ketone three analogous conrotatory structures having different relative dispositions of the nitrogen atoms are considered. In the case of di(pyridin-3-yl) ketone the cis-trans and trans-trans arrangements are approximately equally abundant, but for di(pyridin-2-yl) ketone there is a strong preference for the trans-trans conformation. 
