Hello I have an IR problem for Furan,
http://en.wikipedia.org/wiki/Furan1 peak at 55% absoption about 100 cm^-1 wide at 3129. This peak is confusing, i don't know what to assign it.
I have as relevant peaks (theory values):
c=c 1600-1680
c-o 1050-1250
c-h 2700-3300
c-o-c (ether peak). 1080-1120 and 1200-1280
Although all the peaks in my IR are close, none actually fits the theorical values.
Does anyone know for this values, are they averages or are they like probability density values where if it doesn't fit its not there?
Thanks in advance.