@johncarlosbaez @mc is it somehow possible to guess the color from the length of the chain of carbons?
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@johncarlosbaez @mc is it somehow possible to guess the color from the length of the chain of carbons? 2 comments
@johncarlosbaez @b3nb3n @mc lycopene is red and is the longest chain you showed. Shouldn't it be the opposite? Longer = lower frequency? |
@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).