
%0 Journal Article
%A Mackay, Maureen F. 
%A Gale, Douglas J. 
%A Wilshire, John F. K. 
%T Structural studies of some 1-polymethyleneimino-2,4-dinitrobenzenesand related compounds; crystal structure of 1-(<emph type="2">cis</emph>-2&#8242;,6&#8242;-dimethylpiperidin-1&#8242;-yl)-2,4-dinitrobenzene
%J Australian Journal of Chemistry
%D 2000/11/15
%V 53
%N 8
%P 715-722
%K 2,4-Dinitroanilines; n.m.r.; ultraviolet spectroscopy; X-ray crystal structure.
%R https://doi.org/10.1071/CH00076
%U https://www.publish.csiro.au/paper/CH00076 
%X The ultraviolet and 1H n.m.r. spectra of some 1-polymethyleneimino-2,4-dinitrobenzenes and related compounds are discussed. The effect of trifluoroacetic acid on these spectra was also investigated; with 1-azetidinyl-2,4-dinitrobenzene, acid-catalysed ring opening was observed. The solid-state conformation of 1-(cis-2&#8242;,6&#8242;-dimethylpiperidin-1&#8242;-yl)-2,4-dinitrobenzene has been defined by single-crystal X-ray crystallography. Triclinic crystals belong to the space group P&#8211;1 with a 8.165(1), b 7.865(1), c 11.148(1) &#197;, &#945; 95.23(1), &#946; 106.00(1), &#947; 92.63(1)&#x02DA; and Z 2. The structure was refined to a final R of 0.048 for the 2222 observed data. In the crystal, the phenyl ring adopts a slight boat conformation, while the amino and o-nitro groups are significantly twisted from the mean plane of the ring. 
