
%0 Journal Article
%A Curtis, NJ 
%A Vanaltena, IA 
%A Hounslow, AM 
%T New and Revised Spectral Assignments of Nitrocelluloses: the <sup>1</sup>H and <sup>13</sup>C N.M.R. Spectra of Cellulose 2,3,6-Trinitrate and Cellulose 3,6-Dinitrate
%J Australian Journal of Chemistry
%D 1992/03/01
%V 45
%N 3
%P 627-634
%K 
%R https://doi.org/10.1071/CH9920627
%U https://www.publish.csiro.au/paper/CH9920627 
%X Authoritative assignments have been made for the 13C and 1H nuclear magnetic resonance spectra of both essentially pure cellulose 2,3,6-trinitrate (la) and cellulose 3,6-dinitrate (1b), by using correlation spectroscopy. This study clarifies previous conflicting assignments for (1a); the revised assignment is ( ppm ): C1, 98.1; C2, 77.5; C3, 78.6; C4, 75.3; C5/C6, 70.0 in (D6) dimethyl  sulfoxide . The same relative positions are retained in (D6)acetone. The study has confirmed that the product of hydroxylamine-mediated denitration is cellulose 3,6-dinitrate. Attempts to evaluate &#945;, &#946; &#947;shift factors, for the change in substitution from C-ON02 to C-OH, were largely unsuccessful. 
