@b3nb3n @mc - yes if you're smart enough, but I'm not. The frequency of vibration will be lower for longer carbon chains, just like for a violin string, but I bet the side-groups attached to the chains also affect the frequency - like the oxygens in curcurmin. So you should get the cleanest patterns for very simple chains like

C-C=C-C=C-C=C-C

(with appropriate hydrogens attached).