It is to underline that in the region around 1600 [cm.sup.-1], different group vibrations overlap: for the oxycellulose, C=C symmetric stretching, C=C-O symmetric stretching, and O-C=O asymmetric stretching.
Cromie, "Spectroscopic investigation of some derivatives of oxycellulose in cadoxen solution," Journal of Applied Chemistry and Biotechnology, vol.